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  • Statistics In Transition

 

Article | 24-August-2017

RESIDENCY TESTING. ESTIMATING THE TRUE POPULATION SIZE OF ESTONIA

The number of residents or population size is important for all countries. Nowadays in many countries a series of registers have been created, which can be used for assessing the population size. The residency index is a tool created for estimating the under- and over-coverage of population census and calculation of proper population size. For this aim the concept of a sign of life – a binary variable depending on register i, person j and year k has been introduced showing if the person was

Ene-Margit Tiit

Statistics in Transition New Series, Volume 18 , ISSUE 2, 211–226

Article | 03-March-2021

Estimation of the number of residents included in a population frame

A high migration rate of a population causes the number of a country’s residents to become extremely volatile, which negatively affects the quality of population frames. The aim of the paper is to present a method for estimating the number of residents included in a study population frame. The method involves the cross-classification of a population register with other databases which contain information relating to the activities of the population elements in a given country. The

Danutė Krapavickaitė

Statistics in Transition New Series, Volume 22 , ISSUE 1, 197–206

Article | 06-July-2017

SHIFT IN METHODOLOGY AND POPULATION CENSUS QUALITY

The article refers to the shift in methods to conduct a population census: from a conventional enumeration through a sample survey and a mixed approach to administrative data, as a new standard in statistics. The paper compares two Polish censuses of 2002 and 2011. It is aimed at quality assessment in the case of both: the traditional method (2002 census) and the combined approach (2011 census). The quality of census data is discussed with essential aims and objectives to provide reliable

Elżbieta Gołata

Statistics in Transition New Series, Volume 17 , ISSUE 4, 631–658

Article | 07-July-2017

THE CHALLENGES OF THE POPULATION CENSUS ROUND OF 2020. OUTLINE OF THE METHODS OF QUALITY ASSESSMENT OF POPULATION CENSUS DATA

The author begins with the challenges of the population census round of 2020 and gives an outline of the methods of quality assessment of population census data. Next, the synthesis of two Eurostat documents (2007, 2009) and UN Statistics Division (2010) monograph relating to census data quality assessment are considered. Special attention is paid to three methods of census quality assessment: (i) demographic method, (ii) post-enumeration survey, and (iii) comparison with existing household

Jan Kordos

Statistics in Transition New Series, Volume 18 , ISSUE 1, 115–138

Article | 24-July-2017

Sampling Error in Relation to Cyst Nematode Population Density Estimation in Small Field Plots

Cyst nematodes are serious plant-parasitic pests which could cause severe yield losses and extensive damage. Since there is still very little information about error of population density estimation in small field plots, this study contributes to the broad issue of population density assessment. It was shown that there was no significant difference between cyst counts of five or seven bulk samples taken per each 1-m2 plot, if average cyst count per examined plot exceeds 75 cysts per 100 g of

VESNA ZUPUNSKI, RADIVOJE JEVTIC, VESNA SPASIC JOKIC, LJUBICA ZUPUNSKI, MIRJANA LALOSEVIC, MIHAJLO CIRIC, ZIVKO CURCIC

Journal of Nematology, Volume 49 , ISSUE 2, 150–155

Article | 06-July-2017

A NEW MEDIAN BASED RATIO ESTIMATOR FOR ESTIMATION OF THE FINITE POPULATION MEAN

The present paper deals with a new median based ratio estimator for the estimation of finite population means in the absence of an auxiliary variable. The bias and mean squared error of the proposed median based ratio estimator are obtained. The performance of the median based ratio estimator is compared with that of the SRSWOR sample mean, ratio estimator and linear regression estimator for certain natural population. It is shown from the numerical comparisons that the proposed median based

J. Subramani

Statistics in Transition New Series, Volume 17 , ISSUE 4, 591–604

Article | 05-December-2017

Superparasitism and Population Regulation of the Mosquito-Parasitic Mermithid Nematodes Romanomermis iyengari and Strelkovimermis spiculatus

between infected and uninfected hosts, but even between different parasite loads in showing a strong preference for uninfected hosts or hosts with a low parasite load. Host heart rate declined briefly immediately after parasitism. Superparasitism resulted in increased parasite mortality. Scramble competition within mosquito larvae for limited host nutrients, coupled with a skewed sex ratio favoring males, is assumed to lead to parasite population decline and subsequently toward host-parasite

MANAR SANAD, JENNIFER S. SUN, MUHAMMAD S. M. SHAMSELDEAN, YI WANG, RANDY GAUGLER

Journal of Nematology, Volume 49 , ISSUE 3, 316–320

Research Article | 17-October-2018

High Mitochondrial Genome Diversity and Intricate Population Structure of Bursaphelenchus xylophilus in Kyushu, Japan

Mitogenomic diversity and genetic population structure of the pinewood nematode (PWN) Bursaphelenchus xylophilus inhabiting Kyushu, Japan were analyzed. A method for performing long PCR using single nematodes and sequencing nematode mitochondrial genomes individually is presented here. About 8 kb (∼55%) of the complete mitochondrial genome was successfully obtained from 285 individuals collected from 12 populations. The 158 single nucleotide polymorphisms detected corresponded to 30 haplotypes

Hanyong Zhang, Erika Okii, Eiji Gotoh, Susumu Shiraishi

Journal of Nematology, Volume 50 , ISSUE 3, 281–302

Article | 22-January-2018

NEW APPROACHES USING EXPONENTIAL TYPE ESTIMATOR WITH COST MODELLING FOR POPULATION MEAN ON SUCCESSIVE WAVES

The key and fundamental purpose of sampling over successive waves lies in the varying nature of study character, it so may happen with ancillary information if the time lag between two successive waves is sufficiently large. Keeping the varying nature of auxiliary information in consideration, modern approaches have been proposed to estimate population mean over two successive waves. Four exponential ratio type estimators have been designed. The properties of proposed estimators have been

Kumari Priyanka, Richa Mittal

Statistics in Transition New Series, Volume 18 , ISSUE 4, 569–587

Research paper | 31-October-2017

USING SYMBOLIC DATA IN GRAVITY MODEL OF POPULATION MIGRATION TO REDUCE MODIFIABLE AREAL UNIT PROBLEM (MAUP)

individual data aggregation and deals with multivariate analysis of interval- valued, multi-valued and histogram data. The paper discusses the scale effect of MAUP which occurs in a gravity model of population migrations and shows how SDA can deal with this problem. Symbolic interval-valued data was used to determine the economic distance between regions which served as a separation function in the model. The proposed approach revealed that economic disparities in Poland are lower than official

Justyna Wilk

Statistics in Transition New Series, Volume 16 , ISSUE 2, 243–264

Research Article | 05-July-2017

Child self-report and parent ratings for the Strengths and Difficulties Questionnaire: Norms and agreement in a Swedish random population sample

Background:The Strengths and Difficulties Questionnaire (SDQ) measures behavioral problems among children and adolescents. Prior research in Sweden has included child self-report or parent ratings from community or population data.Objective:To provide child-reported and parent-rated SDQ norms for 11- to 16-year-olds, as well as data on child–parent agreement and parental sociodemographic correlates: education, employment status, and quality of life.Method:A random population sample with 600

Bojing Liu, Karin Engström, Isabel Jadbäck, Sara Ullman, Anne H. Berman

Scandinavian Journal of Child and Adolescent Psychiatry and Psychology, Volume 5 , ISSUE 1, 13–27

Research Communicate | 18-March-2020

Generalized exponential estimators for the finite population mean

This study proposes a new class of exponential-type estimators in simple random sampling for the estimation of the population mean of the study variable using information of the population proportion possessing certain attributes. Theoretically, mean squared error (MSE) equations of the suggested ratio exponential estimators are obtained and compared with the Naik and Gupta (1996) ratio and product estimators, the ratio and product exponential estimator presented in Singh et al. (2007) and the

Tolga Zaman

Statistics in Transition New Series, Volume 21 , ISSUE 1, 159–168

Report | 09-October-2019

Distribution of blood groups in the Iranian general population

We report the first study of antigen and phenotype prevalence within various blood group systems in the Iranian general population. In this retrospective study, samples from 3475 individuals referred to the Immunohematology Reference Laboratory of the Iranian Blood Transfusion Organization, Tehran, Iran, for paternity testing from 1998 to 2008 were additionally tested for red blood cell (RBC) antigens in the Rh, Kell, Kidd, Duffy, MNS, Lutheran, P1PK, and Xg blood group systems. The antigen

Ehsan Shahverdi, Mostafa Moghaddam, Ali Talebian, Hassan Abolghasemi

Immunohematology, Volume 32 , ISSUE 4, 135–139

Article | 06-July-2017

A NEW FAMILY OF ESTIMATORS OF THE POPULATION VARIANCE USING INFORMATION ON POPULATION VARIANCE OF AUXILIARY VARIABLE IN SAMPLE SURVEYS

This paper proposes a family of estimators of population variance 2 y S of the study variable y in the presence of known population variance 2 x S of the auxiliary variable x. It is identified that in addition to many, the recently proposed classes of estimators due to Sharma and Singh (2014) and Singh and Pal (2016) are members of the proposed family of estimators. Asymptotic expressions of bias and mean squared error (MSE) of the suggested family of

Housila P. Singh, Surya K. Pal

Statistics in Transition New Series, Volume 17 , ISSUE 4, 605–630

Research Communicate | 20-November-2017

SAMPLE ALLOCATION IN ESTIMATION OF PROPORTION IN A FINITE POPULATION DIVIDED AMONG TWO STRATA

The problem of estimating a proportion of objects with a particular attribute in a finite population is considered. The classical estimator is compared with the estimator, which uses the information that the population is divided among two strata. Theoretical results are illustrated with a numerical example.

Dominik Sieradzki, Wojciech Zieliński

Statistics in Transition New Series, Volume 18 , ISSUE 3, 541–548

research-article | 30-November-2018

Reproduction and life history traits of a resistance breaking Globodera pallida population

structure. In this case, females are formed but their development is arrested and they fail to develop eggs (Bakker et al., 2006). When cultivars carrying similar resistance genes are grown repeatedly for several generations, they impose strong selection pressure which increases the frequency of virulent individuals within a nematode population (Turner, 1990; Turner and Fleming, 2002). There are reports for Germany and the Netherlands about G. pallida populations with the new virulence type due to

James M. Mwangi, Björn Niere, Maria R. Finckh, Stefan Krüssel, Sebastian Kiewnick

Journal Of Nematology, Volume 51 , 1–13

Article | 20-April-2020

FCGR3B polymorphism in three ethnic Chinese populations

by PCR using sequence specific primers (PCR-SSP). The results showed the gene frequencies were 0.55 for FCGR3B*1 and 0.45 for FCGR3B*2 in 177 Han individuals,0.69 for FCGR3B*1 and 0.31 for FCGR3B*2 in 87 She individuals,and 0.35 for FCGR3B*1 and 0.65 for FCGR3B*2 in 99 Tajik individuals,respectively. The FCGR3Bnull genotype was not found,but the FCGR3B*3 allele was identified in only three individuals in the Tajik population. DNA clone and sequencing confirmed that these individuals had the C

Lixing Yan, Faming Zhu, Lei Jin, Qinfeng Lv, Qihua Fu

Immunohematology, Volume 21 , ISSUE 1, 25–28

Research paper | 31-October-2017

IMPROVED SEPARATE RATIO AND PRODUCT EXPONENTIAL TYPE ESTIMATORS IN THE CASE OF POST-STRATIFICATION

This paper addressed the problem of estimation of finite population mean in the case of post-stratification. Improved separate ratio and product exponential type estimators in the case of post-stratification are suggested. The biases and mean squared errors of the suggested estimators are obtained up to the first degree of approximation. Theoretical and empirical studies have been done to demonstrate better efficiencies of the suggested estimators than other considered estimators.

Hilal A. Lone, Rajesh Tailor

Statistics in Transition New Series, Volume 16 , ISSUE 1, 53–64

research-article | 30-November-2019

Influences of nitrogen inputs on nematode populations under highbush blueberry

blueberry. Previous research on the influences of N fertilization on genera or species of plant-parasitic nematodes of agronomic significance was focused primarily on natural grassland, pasture, forage, or cereal production systems (Dmowska and Ilieva, 1995; Todd, 1996; Sarathchandra et al., 2001; Verschoor et al., 2001; Forge et al., 2005a), and most of such studies reported an increase in population densities with increasing N fertilization rates. With respect to horticultural crops, Forge et al

Thomas Forge, David Ehret, Aime Messiga, Martine Dorais

Journal of Nematology, Volume 52 , 1–14

research-article | 06-November-2020

Morphological and molecular analyses of a Meloidogyne mali population with high intragenomic rRNA polymorphism

those in the basal clades. In the present study, we reported that a M. mali population was imported from Japan in Ningbo Port, China, with high intragenomic rRNA polymorphisms. We describe this population by detailed morphology and molecular phylogeny, and compare it with other populations in GenBank by mitochondrial COI haplotype network analysis. Materials and methods Isolation and morphological observation of nematodes Roots and a little soil and rhizosphere medium associated with maple (Acer

Jianfeng Gu, Yiwu Fang, Lele Liu

Journal of Nematology, Volume 52 , 1–11

Research Article | 18-March-2020

Parametric prediction of finite population total under Informative sampling and nonignorable nonresponse

In this paper, we combine two methodologies used in the model-based survey sampling, namely the prediction of the finite population total, named T, under informative sampling and full response, see Sverchkov and Pfeffermann  (2004), and the prediction of T with a noninformative sampling design and the nonignorable nonresponse mechanism, see Eideh (2012). The former approach involves the dependence of the first order inclusion probabilities on the study variable, while the latter involves

Abdulhakeem Eideh

Statistics in Transition New Series, Volume 21 , ISSUE 1, 13–35

Research Article | 04-September-2019

ESTIMATION OF PRODUCT OF TWO POPULATION MEANS BY MULTI-AUXILIARY CHARACTERS UNDER DOUBLE SAMPLING THE NON-RESPONDENTS

This paper considers the problem of estimating the product of two population means using the information on multi-auxiliary characters with double sampling the non-respondents. Classes of estimators are proposed for estimating P under two different situations [discussed by Rao (1986, 90)] using known population mean of multi-auxiliary characters. Further, this problem has been extended to the case when population means of the auxiliary characters are unknown and they are estimated on the basis

B. B. Khare, R. R. Sinha

Statistics in Transition New Series, Volume 20 , ISSUE 3, 81–95

original-paper | 28-June-2019

In situ Impact of the Antagonistic Fungal Strain, Trichoderma gamsii T30 on the Plant Pathogenic Fungus, Rhizoctonia solani in Soil

evaluate the in situ impact of the biocontrol strain on the population density of the plant pathogenic R. solani AG 2-2 strain G6 in the soil. For this purpose, microcosms containing the autoclaved or non-autoclaved soils were used. The microcosms were inoculated with both the pathogen (R. solani AG 2-2 strain G6) and the antagonist (T. gamsii strain T30) in different ratios. The population densities of the pathogenic fungus were followed up to day 25 using real-time polymerase chain reaction (qPCR) by

MUHAMMAD ANEES, MUHAMMAD ABID, SOBIA CHOHAN, MUHAMMAD JAMIL, NADEEM AHMED, LIXIN ZHANG, EUI SHIK RHA

Polish Journal of Microbiology, Volume 68 , ISSUE 2, 211–216

Article | 20-December-2020

Estimating the population mean using a continuous sampling design dependent on an auxiliary variable

Continuous distribution of variables under study and auxiliary variables are considered. The purpose of the paper is to estimate the mean of the variable under study using a sampling design which is dependent on the observation of a continuous auxiliary variable in the whole population. Auxiliary variable values observed in this population allow to estimate the inclusion density function of the sampling design. The variance of the continuous version of the Horvitz-Thompson estimator under the

Janusz L. Wywiał

Statistics in Transition New Series, Volume 21 , ISSUE 5, 1–16

Research Article | 30-November-2013

Risk factors for suicide attempts in the total population of Faroese eighth graders

Suicide is still one of the leading causes of youth mortality, and amongst others previous suicide attempts have been found to be one of the strongest risk factors for suicide. The objective of this study is to examine risk factors of suicide attempts in a total population of Faroese adolescents. It is expected that anxious attachment, high scores on negative affectivity and low scores on past and present social support were correlated to an increased risk of life-time suicide attempts in both

Tóra Petersen, Ask Elklit

Scandinavian Journal of Child and Adolescent Psychiatry and Psychology, Volume 2 , ISSUE 3, 106–114

research-article | 30-November-2018

Nitrogen inputs and irrigation frequency influence population dynamics of Mesocriconema xenoplax under grapevines

herbivores, the fecundity of plant-parasitic nematodes is likely to be positively influenced by the N status of their hosts (Mattson, 1980), but relationships between fertilization of woody perennial crops and the population dynamics of M. xenoplax have never been studied directly. Previous research suggests that M. xenoplax population growth is favored by moist soil conditions and therefore also likely to be influenced by irrigation practices. For example, Howland et al. (2014) reported that M. xenoplax

Thomas Forge, Kirsten Hannam, Denise Neilsen, Gerry Neilsen

Journal of Nematology, Volume 51 , 1–6

Article | 15-March-2019

DEVELOPMENT OF CHAIN-TYPE EXPONENTIAL ESTIMATORS FOR POPULATION VARIANCE IN TWOPHASE SAMPLING DESIGN IN PRESENCE OF RANDOM NON-RESPONS

In this paper, an investigation has been carried out to deal with a unified approach of estimation procedures of population variance in two-phase sampling design under missing at random non-response mechanism circumstances. Using two auxiliary variables, we have developed different chain-type exponential estimators of finite population variance for two different set-ups and studied their properties under the different assumption of random non-response considered by Tracy and Osahan (1994). The

G. N. Singh, Amod Kumar, Gajendra K. Vishwakarma

Statistics in Transition New Series, Volume 19 , ISSUE 4, 575–596

research-article | 13-April-2020

First molecular characterization of an Iranian population of Schistonchus caprifici (Gasparrini, 1864) Cobb, 1927 (Rhabditida; Aphelenchoidea)

Goldansaz, 1998; Pakniyat and Taghizadeh, 2000; Namjoo et al., 2019) with no morphological and morphometric data. However, the morphological characters and morphometric data were provided for an Iranian population of the species by Kolaei et al. (2016) from Kerman. The genera Aprutides and Schistonchus were not characterized from Iran with molecular data, unlike the other previously mentioned genera. Based on a recovered population of S. caprifici from syconia of Ficus carica collected from a fig garden

Hadi Karimipour Fard, Hamid Zare

Journal of Nematology, Volume 52 , 1–3

Article | 20-December-2020

Some linear regression type ratio exponential estimators for estimating the population mean based on quartile deviation and deciles

This paper deals some linear regression type ratio exponential estimators for estimating the population mean using the known values of quartile deviation and deciles of an auxiliary variable in survey sampling. The expressions of the bias and the mean square error of the suggested estimators have been derived. It was compared with the usual mean, usual ratio (Cochran (1977)), Kadilar and Cingi (2004, 2006) and Subzar et al. (2017) estimators. After comparison, the condition which makes the

Shakti Prasad

Statistics in Transition New Series, Volume 21 , ISSUE 5, 85–98

Research Article | 18-March-2020

Estimation of finite population mean using two auxiliary variables under stratified random sampling

This paper addresses the problem of an alternative approach to estimating the population mean of the study variable with the help of the auxiliary variable under stratified random sampling. The properties of the suggested estimator have been studied under large sample approximation. It has been demonstrated that the suggested estimator is more efficient than other considered estimators. To judge the merits of the proposed estimator, an empirical study has been carried out to support the present

Rohini Yadav, Rajesh Tailor

Statistics in Transition New Series, Volume 21 , ISSUE 1, 1–12

Article | 13-December-2019

THE IMPACT OF THE APPLIED TYPOLOGY ON THE STATISTICAL PICTURE OF POPULATION  AGEING IN URBAN AREAS IN POLAND – A COMPARATIVE ANALYSIS

The aim of the paper is to review and compare the processes of population ageing in Polish urban areas. The study presents a novel approach to the problem, because in addition to measuring this phenomenon according to the National Official Register of the Territorial Division of the Country (TERYT) classification, it also measures population ageing according to the classification for urban areas (LAU 2 units) – Degree of Urbanisation (DEGURBA). Several traditional demographic measures for

Tomasz Klimanek, Sylwia Filas-Przybył

Statistics in Transition New Series, Volume 20 , ISSUE 4, 135–152

Sampling Methods | 22-July-2018

EFFICIENT ESTIMATORS OF POPULATION MEAN USING AUXILIARY INFORMATION UNDER SIMPLE RANDOM SAMPLING

In the present study we have proposed an improved family of estimators for estimation of population mean using the auxiliary information of median, quartile deviation, Gini’s mean difference, Downton’s Method, Probability Weighted Moments and their linear combinations with correlation coefficient and coefficient of variation. The performance of the proposed family of estimators is analysed by mean square error and bias and compared with the existing estimators in the literature. By

Mir Subzar, Showkat Maqbool, Tariq Ahmad Raja, Surya Kant Pal, Prayas Sharma

Statistics in Transition New Series, Volume 19 , ISSUE 2, 219–238

Article | 13-December-2019

ESTIMATING POPULATION COEFFICIENT OF VARIATION USING A SINGLE AUXILIARY VARIABLE IN SIMPLE RANDOM SAMPLING

This paper proposes an improved estimation method for the population coefficient of variation, which uses information on a single auxiliary variable. The authors derived the expressions for the mean squared error of the proposed estimators up to the first order of approximation. It was demonstrated that the estimators proposed by the authors are more efficient than the existing ones. The results of the study were validated by both empirical and simulation studies.

Rajesh Singh, Madhulika Mishra

Statistics in Transition New Series, Volume 20 , ISSUE 4, 89–111

research-article | 30-November-2019

Characterization of a population of Pelodera strongyloides (Nematoda: Rhabditidae) associated with the beetle Lucanus ibericus (Coleoptera: Lucanidae) from Georgia

. In the present study, a Georgian population of P. strongyloides recovered for the first time from L. ibericus and was fully characterized by morphology and morphometrics. Furthermore, the PCR amplification and sequencing of the D2 to D3 expansion domains of the 28S rRNA gene, the ITS, and the mitochondrial COI were carried out. The phylogenetic relationships of P. strongyloides from Georgia to other Pelodera species and Rhabditidae were also reconstructed. Materials and methods Nematode

O. Gorgadze, A. Troccoli, E. Fanelli, E. Tarasco, F. De Luca

Journal of Nematology, Volume 52 , 1–12

Sampling Methods | 22-July-2018

A GENERALIZED EXPONENTIAL TYPE ESTIMATOR OF POPULATION MEAN IN THE PRESENCE OF NON-RESPONSE

In this article, we propose a class of generalized exponential type estimators to estimate the finite population mean by using two auxiliary variables under non-response in simple random sampling. The proposed estimator under non-response in different situations has been studied and gives minimum mean square error as compared to all other considered estimators. Usual exponential ratio type estimator, exponential product type estimator and many more estimators are also identified from the

Siraj Muneer, Javid Shabbir, Alamgir Khalil

Statistics in Transition New Series, Volume 19 , ISSUE 2, 259–276

Article | 27-May-2019

MODELLING SENSITIVE ISSUES ON SUCCESSIVE WAVES

This paper addresses the problem of estimation of population mean of sensitive character using non-sensitive auxiliary variable at current wave in two wave successive sampling. A general class of estimator is proposed and studied under randomized and scrambled response model. Many existing estimators have been modified to work for sensitive population mean estimation. The modified estimators became the members of proposed general class of estimators. The detail properties of all the estimators

Kumari Priyanka, Pidugu Trisandhya

Statistics in Transition New Series, Volume 20 , ISSUE 1, 41–65

Original Paper | 31-January-2019

Ultrasonographic study of the incidence of pyramidal lobe and agenesis of the thyroid isthmus in Nnewi population

Abstract Introduction: Ultrasound is the most reliable imaging modality for thyroid evaluation due to the limitations in the clinical examination of this gland. Thyroid gland developmental anomalies are rare. Most of its variations are due to the persistence of the thyroglossal duct and the absence of the isthmus. The aim of this study was to determine the incidence of pyramidal lobe and agenesis of the thyroid isthmus in Nnewi population using ultrasound. Materials and method: A total of 321

Lotanna Somtoo Akudu, Ukoha Ukoha Ukoha, Jervas Ekezie, Chinwe Clarice Ukoha

Journal of Ultrasonography, Volume 18 , ISSUE 75, 290–295

Research Article | 31-March-2017

Fetal biometric parameters: Reference charts for a non-selected risk population from Uberaba, Brazil

Objective Objective To establish reference charts for fetal biometric parameters in a non-selected risk population from Uberaba, Southeast of Brazil. Methods Methods A retrospective cross-sectional study was performed among 5656 non-selected risk singleton pregnant women between 14 and 41 weeks of gestation. The ultrasound exams were performed during routine visits of second and third trimesters. Biparietal diameter (BPD) was measured at the level of the thalami and cavum septi pellucidi. Head

Alberto Borges Peixoto, Taciana Mara Rodrigues da Cunha Caldas, Fernando Felix Dulgheroff, Wellington P. Martins, Edward Araujo Júnior

Journal of Ultrasonography, Volume 17 , ISSUE 68, 23–29

Research paper | 01-November-2017

Triple-goal estimation of unemployment rates for U.S. states using the U.S. Current Population Survey data

In this paper, we first develop a triple-goal small area estimation methodology for simultaneous estimation of unemployment rates for U.S. states using the Current Population Survey (CPS) data and a two-level random sampling variance normal model. The main goal of this paper is to illustrate the utility of the triple-goal methodology in generating a single series of unemployment rate estimates for three separate purposes: developing estimates for individual small area means, producing 

Daniel Bonnéry, Yang Cheng, Neung Soo Ha, Partha Lahiri

Statistics in Transition New Series, Volume 16 , ISSUE 4, 511–522

Original Paper | 31-August-2018

Intima–media complex thickness and carotid atherosclerotic plaque formation in Lublin’s population in the context of selected comorbidities

of this report was an evaluation of the relationships between intima–media complex thickness in the right and left carotid arteries and the occurrence of atheromatous plaque in the Lublin population with respect to three possible concomitant medical conditions, mentioned above. Material and methods: A group of 121 subjects was included into the study, all of the participants being residential inhabitants of the Lublin Voivodship. All the participating patients were requested to fill in a

Tomasz Słomka, Anna Drelich-Zbroja, Magdalena Jarząbek, Małgorzata Szczerbo-Trojanowska

Journal of Ultrasonography, Volume 18 , ISSUE 73, 133–139

research-article | 24-April-2019

Description of Rotylenchus rhomboides n. sp. and a Belgian population of Rotylenchus buxophilus (Tylenchomorpha: Hoplolaimidae)

, North America, and New Zealand. Rotylenchus uniformis was found in the Netherlands and New Zealand. Rotylenchus goodeyi was recorded from several localities in the UK, the Netherlands, Belgium, Bulgaria, Slovakia, Spain, Switzerland, Luxemburg, and Uzbekistan (Castillo and Vovlas, 2005). Herein, the new species Rotylenchus rhomboides n. sp. is characterized and a population of R. buxophilus is reported for the first time on yam (Dioscorea tokoro Makino). Both species were described based on

Huu Tien Nguyen, Quang Phap Trinh, Marjolein Couvreur, Phougeishangbam Rolish Singh, Wilfrida Decraemer, Wim Bert

Journal of Nematology, Volume 51 , 1–20

research-article | 30-November-2018

THE COMPARATIVE ANALYSIS OF MUNICIPAL SOLID WASTE MANAGEMENT IN THE EIGHT CITIES OF UKRAINE

, processing and waste removal is accepted. For the system implementation should revising the practical means. This paper shows the composition analysis as to the eight Ukrainian reference cities located in four different regions (western, southern, southeast and central), with various number and official incomes of population. The aim of the study: the estimation of MSW components secondary use potential. 2. RESEARCH FIELD CHARACTERISTICS 2.1. Methodology. Analytical framework According to the World

Nonna PAVLIUK

Architecture, Civil Engineering, Environment, Volume 12 , ISSUE 1, 155–161

Article | 21-July-2017

Molecular and Morphological Characterization of Xiphinema chambersi Population from Live Oak in Jekyll Island, Georgia, with Comments on Morphometric Variations

A population of Xiphinema chambersi from the root zone around live oak (Quercus virginiana Mill.) trees on Jekyll Island, GA, is described using both morphological and molecular tools and compared with descriptions of type specimens. Initially, because of a few morphological differences, this nematode was thought to represent an undescribed species. However, on further examination, the morphometrics of the nematodes from live oak tend to agree with most of the morphometrics in the

ZAFAR A. HANDOO, LYNN K. CARTA, ANDREA M. SKANTAR, SERGEI A. SUBBOTIN, STEPHEN W. FRAEDRICH

Journal of Nematology, Volume 48 , ISSUE 1, 20–27

Research paper | 01-November-2017

SMALL AREA ESTIMATES OF THE POPULATION DISTRIBUTION BY ETHNIC GROUP IN ENGLAND: A PROPOSAL USING STRUCTURE PRESERVING ESTIMATORS

This paper addresses the problem of producing small area estimates of Ethnicity by Local Authority in England. A Structure Preserving approach is proposed, making use of the Generalized Structure Preserving Estimator. In order to identify the best way to use the available aggregate information, three fixed effects models with increasing levels of complexity were tested. Finite Population Mean Square Errors were estimated using a bootstrap approach. However, more complex models did not perform

Angela Luna, Li-Chun Zhang, Alison Whitworth, Kirsten Piller

Statistics in Transition New Series, Volume 16 , ISSUE 4, 585–602

Original Paper | 04-December-2017

Prevalence, Influencing Factors, Antibiotic Resistance, Toxin and Molecular Characteristics of Staphylococcus aureus and MRSA Nasal Carriage among Diabetic Population in the United States, 2001–2004

Diabetic population were reported more likely to suffer carriage and infection with Staphylococcus aureus (S. aureus) and methicillin-resistant Staphylococcus aureus (MRSA) than non-diabetic population. We aim to elucidate the prevalence and characteristics of S. aureus and MRSA nasal carriage among diabetic population in the United States National Health and Nutrition Examination Survey, 2001–2004. Univariate analyses were conducted using Chi-square test, Fisher’s exact probability test or

Jialing Lin, Yang Peng, Chan Bai, Ting Zhang, Haoqu Zheng, Xiaojie Wang, Jiaping Ye, Xiaohua Ye, Ying Li, Zhenjiang Yao

Polish Journal of Microbiology, Volume 66 , ISSUE 4, 439–448

research-article | 15-October-2020

Phenylbutyrate administration reduces changes in the cerebellar Purkinje cells population in PDC-deficient mice

distinct PC populations. An ‘early-born’ PC population predominantly born in the posterior region of ventricular zone migrates to the nascent PC plate by E14.5. These cells utilize a tangential migratory pathway. The second population consisting of the ‘later-born’ PCs migrates to more laterally located parts of the cerebellum than the ‘early-born’ counterparts utilizing a radial glial scaffold away from ventricular zone. ‘Early’- and ‘later-born’ PCs have distinct molecular characteristic (White and

Ilona Klejbor, Saleh Mahmood, Natalia Melka, Adriana Ebertowska, Janusz Morys, Ewa K. Stachowiak, Michal K. Stachowiak, Mulchand S. Patel

Acta Neurobiologiae Experimentalis, Volume 80 , ISSUE 3, 305–321

Article | 01-April-2020

Serologic and molecular characterization of the B(A) blood group in the Chinese population

B(A) phenotype individuals have normal B antigen and a small amount of A antigen on the RBCs with anti-A in the plasma. Some highly potent monoclonal anti-A reagents are capable of agglutinating B(A) RBCs,which therefore usually results in a discrepancy between RBC and plasma ABO grouping. To date,five B(A) alleles (ABO*B(A)01, B(A)02, B(A)03, B(A)04, and B(A)05) have been defined by nucleotide sequences. To get a more complete picture of B(A) phenotypes found in the Chinese population and

Zhong-Hui Guo, Dong Xiang, Zi-Yan Zhu, Xi Liu, He-Ping Chen, Jian-Lian Wang, Da-Zhuang Liu, Tong-Mao Zhao

Immunohematology, Volume 23 , ISSUE 2, 69–74

Article | 17-February-2021

Weak D types 38 and 11: determination of frequencies in a Brazilian population and validation of an easy molecular assay for detection

the D protein.5 Approximately 0.2 to 1 percent of white individuals inherit an RHD allele that codes for a serologic weak D phenotype5,6 and, in this population, these variant alleles most frequently encode weak D types 1, 2, or 3, which can be managed safely as D+.5,7 It is important to highlight the fact that the distribution and diversity of RhD variants vary according to population, race, and geographical location. Most of what is known about RhD variants stems from studies focusing either on

M.R. Dezan, V.B. Oliveira, M. Conrado, F. Luz, A. Gallucci, T.G.M. Oliveira, E.C. Sabino, V. Rocha, A. Mendrone, C.L. Dinardo

Immunohematology, Volume 36 , ISSUE 2, 47–53

Original Paper | 27-September-2017

MRSA in Pig Population

Meldra Ivbule, EdvĪns Miklaševičs, Liene Čupāne, Laima Bērziņa, Andris Bāliņš, Anda Valdovska

Polish Journal of Microbiology, Volume 66 , ISSUE 3, 383–392

Article | 24-August-2017

ESTIMATING SENSITIVE POPULATION PROPORTION USING A COMBINATION OF BINOMIAL AND HYPERGEOMETRIC RANDOMIZED RESPONSES BY DIRECT AND INVERSE MECHANISM

individuals possessing those sensitive attributes can potentially eliminate the bias. Following Chaudhuri and Dihidar (2014) and Dihidar (2016), here, as a possible variant, we have made an attempt to estimate the sensitive population proportion using a combination of binomial and hypergeometric randomized responses by direct and inverse mechanism. Along with the traditional simple random sampling, with and without replacement, we consider here sampling of respondents by unequal probabilities. Essential

Kajal Dihidar, Manjima Bhattacharya

Statistics in Transition New Series, Volume 18 , ISSUE 2, 193–210

research-article | 30-November-2018

Impact of a conservation agriculture system on soil characteristics, rice yield, and root-parasitic nematodes in a Cambodian lowland rice field

population growth and urbanization increase competition for their use in agriculture. In order to meet global rice demands for a rapid growing world population, rice yields need to increase by approximately 42% by 2050 (Ray et al., 2013). Rice farming is facing a dual challenge of delivering sufficient and nutritious food to meet the projected demands of population growth and markets, and overcoming issues such as climate change, soil fertility depletion and water scarcity through sustainable

Malyna Suong, Elodie Chapuis, Vira Leng, Florent Tivet, Dirk De Waele, Huế Nguyễn Thị, Stéphane Bellafiore

Journal of Nematology, Volume 51 , 1–15

research-article | 09-January-2020

Understanding Singaporean migrants in South Australia

International migration to Australia is complex, with a number of factors contributing to those that stay and those who leave. Despite a sustained increase in the number of Singapore-born individuals in Australia, this population has generally been overlooked in studies on international migrants and settlement. Australia is no stranger to migrant populations, with almost half of Australia’s population comprising of immigrants or are children of immigrants (Hugo, 2014a). Immigrants are defined

Hannah Barbour

South Australian Geographical Journal, Volume 115 , ISSUE 1, 1–9

research-article | 30-November-2018

Data of an Iranian Population of L. proximus Sturhan & Argo, 1983, with taxonomic revision of L. israelensis Peneva, Orion, Shlevin, Bar-Eyal & Brown, 1998 (Nematoda: Longidoridae) and Proposal for a New Synonymy

Longidorus proximus (Sturhan and Argo, 1983) was originally described as a parthenogenetic species. Later, a bisexual population was reported by Roca (1986). The species was reported from Iran in a conference abstract, but the morphological and morphometric data of this population were not available (Niknam et al., 2006). Longidorus israelensis (Peneva et al., 1998) is currently only known by its type population (Peneva et al., 1998) and has not been reported since its description. It was

Mazdosht Giti, Leila Kashi, Majid Pedram

journal of nematology, Volume 51 , 1–11

Research Article | 30-November-2012

Exploration of ADHD Subtype Definitions and Co-Occurring Psychopathology in a Missouri Population-Based Large Sibship Sample

There is some debate regarding the utility of Attention-Deficit/Hyperactivity Disorder (ADHD) subtypes as currently defined. Differences in co-occurring psychopathology among subtypes would support the validity of subtype definitions. To explore how ADHD subtype relates to co-occurring psychopathology in a large population-based sample of children and adolescents (n=5744). Parents completed the Strengths and Weaknesses of ADHD-symptoms and Normal behavior (SWAN) questionnaire, the Child

Angela M. Reiersen, Alexandre A. Todorov

Scandinavian Journal of Child and Adolescent Psychiatry and Psychology, Volume 1 , ISSUE 1, 3–13

research-article | 30-November-2018

METHODOLOGY OF ECODIAGNOSTICS ON THE EXAMPLE OF RURAL AREAS

1. INTRODUCTION One of the directions of sustainable agrarian development in Ukraine is ensuring the implementation of the multifunctional role of agriculture, development of human resources, protection of the environment, genetic resources and biodiversity, etc. At present, Ukraine has no system for the preservation of the environment and diagnostics of its condition, in particular in rural areas, where excessive plowing and landfills become a threat to the local population. The agrosphere is

Viktor V. KOVAL, Angelina D. PETRASHEVSKA, Olga L. POPOVA, Inesa S. MIKHNO, Krzysztof GASKA

Architecture, Civil Engineering, Environment, Volume 12 , ISSUE 1, 139–144

Article | 09-November-2020

A modified PCR-RFLP genotyping method demonstrates the presence of the HPA-4b platelet alloantigen in a North American Indian population

reference panel of 10 known HPA-4 genotyped Japanese individuals. Thus, genotyping by PCR-RFLP can now be performed for all six major HPA systems. Using the HPA-4 PCR-RFLP genotyping method, we determined a frequency of 2.9 percent for the HPA-4b allele in a North American Indian population. This finding indicates the importance of the HPA-4 antigen system as a potential cause of alloimmune thrombocytopenia in American Indians.

Alexander P. Reiner, Gayle Teramura

Immunohematology, Volume 13 , ISSUE 2, 37–43

Review Paper | 25-January-2016

Natural course of treated epilepsy and medico-social outcomes. Turku studies. Part II

Introduction. Population-based data on the prognosis of childhood-onset epilepsy were almost nonexistent in the 1960s. This prompted me to start an epidemiological prospective study on children with epilepsy. Aim. To study the medical and social outcome of children with epilepsy. Methods. The most important personal data on the natural course and outcome were reviewed and compared with the relevant data of other investigators. Results and discussion. The natural course of treated epilepsy is

Matti Sillanpää

Journal of Epileptology, Volume 24 , ISSUE 1, 25–39

Review Paper | 23-December-2015

Epidemiology and long-term Turku outcome of childhood-onset epilepsy and mortality. Personal experiences. Part I

Introduction. Epidemiological studies on epilepsy were long based, with few exceptions, on hospital and institution patients with a subsequent bias toward more difficult cases and the reported prevalence and incidence rates were often obviously too low. Few data are available on the temporal changes in the incidence of epilepsy. Aim. To study the prevalence and incidence in an unselected child population including all the children living either in the society or in the institution, temporal

Matti Sillanpää

Journal of Epileptology, Volume 23 , ISSUE 2, 149–157

Sampling Methods | 20-November-2017

POPULATION VARIANCE ESTIMATION USING FACTOR TYPE IMPUTATION METHOD

RANJITA PANDEY, KALPANA YADAV

Statistics in Transition New Series, Volume 18 , ISSUE 3, 375–392

Research Article | 30-November-2012

Modeling Patterns of Negative Life Events and Mental Health in Faroese Adolescents

Tóra Petersen, Cherie Armour, Ask Elklit

Scandinavian Journal of Child and Adolescent Psychiatry and Psychology, Volume 1 , ISSUE 2, 63–71

research-article | 31-December-2019

Gallbladder diseases in pregnancy: Sonographic findings in an indigenous African population

bladder disease is the second most common indication for non-obstetric surgical intervention in pregnancy(1). Gallbladder disease in pregnancy is reportedly higher among multigravid women(5). The prevalence of gallbladder disease also varies with geographical location. For example, in the United States, 10%–15% of the adult population has gallstones. In other populations, such as those of Latin-American countries, the prevalence of gallstones is higher, up to 50% in adult women(1). The prevalence of

Bukunmi Michael Idowu, Stephen Olaoluwa Onigbinde, Isaiah Uzezi Ebie, Michael Temidayo Adeyemi

Journal of Ultrasonography, Volume 19 , ISSUE 79, 269–275

Report | 01-December-2019

Prevalence of RHD*DOL and RHCE*ce(818T)  in two populations

Christine Halter Hipsky, Daiane Cobianchi da Costa, Ricardo Omoto, Angela Zanette, Lilian Castilho, Marion E. Reid

Immunohematology, Volume 27 , ISSUE 2, 66–67

research-article | 30-November-2019

First report of Xiphinema hunaniense Wang & Wu, 1992 (Nematoda: Longidoridae) in Vietnam

expected in the country with the use of molecular tools. Herein, a population of Xiphinema hunaniense Wang & Wu, 1992 in Vietnam is characterized by the combination of morphological characters and molecular data. Material and methods Soil and root samples were collected from the upper 30 cm layer of forest soil in the Central Highlands of Vietnam. Nematodes were extracted and permanent slides were made following Nguyen et al. (2019a). Pictures and measurements were recorded using Carl Zeiss Axio Lab

Huu Tien Nguyen, Thi Duyen Nguyen, Thi Mai Linh Le, Quang Phap Trinh

Journal of Nematology, Volume 52 , 1–4

research-article | 30-November-2018

First report of Longidorus mindanaoensis Coomans, De Ley, Jimenez and De Ley, 2012 (Nematoda: Longidoridae) From a Mangrove Forest in Vietnam

Longidorus spp. (needle nematodes) are migratory ectoparasitic nematodes. Besides their direct damages by direct feeding from root cells, some species could also transmit plant pathogenic viruses (Taylor and Brown, 1997). Currently, only one valid species (Longidorus elongatus (de Man, 1876) Micoletzky, 1927) has been reported in association with peanut (Arachis hypogaea L.) from Vietnam. During this study, a population of the genus Longidorus was recovered from saline sea sediments in a

Thi Duyen Nguyen, Huu Tien Nguyen, Thi Mai Linh Le, Neriza Nobleza, Quang Phap Trinh

journal of nematology, Volume 51 , 1–5

Article | 14-August-2018

The Future of Australian Rural Communities: How Powerful are the Forces of Change?

This paper tests how far population change in 412 rural communities of south-eastern Australia is predetermined by five ‘drivers’: remoteness, amenity, town size, rural population density, and concentration/dispersal of the population. Testing their combined impact through multiple correlation analysis, it finds that over the ten-year period 1996-2006, the status of the five drivers measured in 1996 explains (statistically) some 53% of the variance in the actual population change in the

PETER J. SMAILES, TREVOR L.C. GRIFFIN, NEIL M. ARGENT

South Australian Geographical Journal, Volume 111 , 18–42

Article | 06-July-2017

PREDICTION OF A FUNCTION OF MISCLASSIFIED BINARY DATA

Noriah M. Al-Kandari, Partha Lahiri

Statistics in Transition New Series, Volume 17 , ISSUE 3, 429–447

Research Article | 22-January-2018

A GENERALIZED RANDOMIZED RESPONSE MODEL

Housila P. Singh, Swarangi M. Gorey

Statistics in Transition New Series, Volume 18 , ISSUE 4, 669–686

Article | 14-December-2020

The incidence of WESa in 3,072 donors in the United States

The rare red cell antigen, WESa, which is controlled by an autosomal dominant gene, was reported by Sistonen et al.1 to have an incidence in the Finnish population of 0.56 percent. A study was undertaken to determine the incidence of the WESa antigen within the United States. A total of 3,072 donor samples were obtained for testing from eight different geographical locations. It was determined that the incidence of the WESa antigen in the white donor population tested was 2 per 1,610 or 0.12

Tama R. Copeland, Jenny H. Smith, Rhonda M. Wheeling, Marianne G. Rudolph

Immunohematology, Volume 7 , ISSUE 3, 76–77

research-article | 30-November-2018

Development of a decision support system for managing Heterodera schahtii in sugar beet production

the ability of resistant intercrops to reduce SBN population is provided by annual testing in commercial field trials conducted by the Nordic Beet Research (Olsson, 2011). However, assembling the information into a practical tool for planning sustainable crop rotations to avoid risk of infestation by SBN can be a difficult task for both sugar beet growers and crop advisors. Decision support systems (DSS) are tools that help the user makes a decision based on relevant information and accurate

Zahra S. Omer, Jens Levenfors, Susanne Andersson, Ann-Charlotte Wallenhammar

Journal of Nematology, Volume 51 , 1–11

Research Article | 03-December-2018

First report of Bursaphelenchus antoniae from Pinus strobus in the U.S.

Juvenile, female and male nematodes were discovered in wood chips of white pine Pinus strobus from Ashley Falls, MA. Initial observations suggested these nematodes might be PWN, but closer morphological and molecular characterization proved otherwise. Comparison of measured features with those in the literature indicated this nematode population had some unique characteristics. The specimens were identified as Bursaphelenchus antoniae Penas et al., 2006 based on 18S rDNA molecular sequence vs

Lynn K. Carta, R. L. Wick

Journal of Nematology, Volume 50 , ISSUE 4, 473–478

Article | 13-December-2019

A NEW RATIO ESTIMATOR: AN ALTERNATIVE TO REGRESSION ESTIMATOR IN SURVEY SAMPLING USING AUXILIARY INFORMATION

The most dominant problem in the survey sampling is to obtain the better ratio estimators for the estimation of population mean or population variance. Estimation theory is enhanced by using the auxiliary information in order to improve on designs, precision and efficiency of estimators. A modified class of ratio estimator is suggested in this paper to estimate the population mean. Expressions for the bias and the mean square error of the proposed estimators are obtained. Both analytical and

Mir Subzar, S. Maqbool, T. A. Raja, Prayas Sharma

Statistics in Transition New Series, Volume 20 , ISSUE 4, 181–189

research-article | 23-April-2020

Plant-parasitic nematodes associated with the root zone of hop cultivars planted in a Florida field soil

, Tylenchorhynchus dubius Bütschli, Pratylenchus penetrans Filipjev & Shuurmans Stekhoven, and Helicotylenchus sp. (Pelerents et al., 1983). In China, Meloidogyne incognita Kofoid & White was reported on the hop cultivar Comet; however, nematode population development was restricted in a locally bred cultivar (Zhang and Zheng-Li, 1989). As a result of the high demand for locally produced hop from the micro-brewing industry, hop plants were recently introduced into Florida as an alternative crop. In early 2016

Tristan T. Watson, Marco Suarez, Zhanao Deng, Johan A. Desaeger

Journal of Nematology, Volume 52 , 1–10

research-article | 17-April-2019

First Report of Criconema demani from Russia

Sergei Tabolin, Irina Markina

Journal of Nematology, Volume 51 , 1–4

research-article | 30-November-2019

Further observations on Meloidogyne enterolobii (Nematoda: Meloidogynidae) infecting guava (Psidium guajava) in India

with regards to the tail length and gubernaculum length of the males as compared to the original description of M. enterolobii. Further, the line drawings depicting the perineal pattern morphology of females; head shape and esophageal region morphology of J2s (seems to be the juveniles of different nematode species); and posterior body morphology of males largely deviate from that of M. enterolobii sensu stricto. Suresh et al. (2019) characterized the M. enterolobii population infecting guava from

Tushar Manohar Ghule, Victor Phani, Vishal Singh Somvanshi, Maya Patil, Somnath Bhattacharyya, Matiyar Rahaman Khan

Journal of Nematology, Volume 52 , 1–9

research-article | 06-November-2020

Plant health evaluations of Belonolaimus longicaudatus and Meloidogyne incognita colonized bermudagrass using remote sensing

establishment Microplot trials were conducted at the Plant Science Research Center (PSRC) at Auburn University, AL during the summers of 2018 and 2019. Two trials were conducted: one to evaluate four nematicides for their ability to reduce the population density of B. longicaudatus population density, and the other to reduce the population density of M. incognita. Trials were established in 26.5-liter 35.5 cm diameter by 35.5 cm depth plastic tree pots nested one on top of the other with a brick in between

Will L. Groover, Kathy S. Lawrence

Journal of Nematology, Volume 52 , 1–13

research-article | 30-November-2020

Evaluation of a new chemical nematicide, fluazaindolizine (ReklemelTM active), for plant-parasitic nematode management in bermudagrass

novel sulfonamide recently discovered to have nematicidal properties (Corteva Agriscience, Indianapolis, IN) (Lahm et al., 2017; Thoden and Wiles, 2019). Assessments of fluazaindolizine in vitro have shown its ability to significantly reduce motility and activity of Meloidogyne incognita juveniles compared to untreated juveniles, and greenhouse assays of fluazaindolizine on tomato have lowered M. incognita’s reproductive factor (Rf = final population density/initial population density) (Wram and

Will L. Groover, Kathy S. Lawrence

Journal of Nematology, Volume 53 , 1–14

research-article | 30-November-2019

Morphological and molecular characterization of Hoplolaimus pararobustus (Schuurmans Stekhoven and Teunissen, 1938) Sher 1963 with its first report on Zea mays roots in Namibia

sativa L., Pennisetum glaucum (L.) R.Br., Solanum lycopersicum L., Vitis vinifera L., and Z. mays. Hoplolaimus pararobustus has been reported from inside roots of banana (Whitehead, 1959) giving rise to dark-brown pustules that eventually result in necrotic cortical tissue situated around the heads of the feeding sites of the nematodes and eventually elongated ulcerated lesions on the roots (Siddiqi, 1974). It has also been reported, at a population density of 200 individuals per gram of tissue, in

Mariette Marais, Esther van den Berg, Hendrika Fourie, Milad Rashidifard

Journal of Nematology, Volume 52 , 1–12

Article | 22-January-2018

BAYESIAN ESTIMATION OF MEASLES VACCINATION COVERAGE UNDER RANKED SET SAMPLING

The present article is concerned with the problem of estimating an unknown population proportion p, say, of a certain population characteristic in a dichotomous population using the data collected through ranked set sampling (RSS) strategy. Here, it is assumed that the proportion p is not fixed but a random quantity. A Bayes estimator of p is proposed under squared error loss function assuming that the prior density of p belongs to the family of Beta distributions. The performance of the

Radhakanta Das, Vivek Verma, Dilip C. Nath

Statistics in Transition New Series, Volume 18 , ISSUE 4, 589–608

research-article | 16-April-2020

Nematicide influence on cotton yield and plant-parasitic nematodes in conventional and sod-based crop rotation

). Reniform nematode is a sedentary endoparasite that reduces yield, boll size, and delays maturity (Robinson et al., 1997; Khanal et al., 2018). Cotton is considered one of the most severely affected hosts of RN, with possible yield losses of 60% and fall population densities of 1,000 RN/100 cm3 soil estimated as a damage threshold (Blasingame et al., 2002; Doshi et al., 2010; Moore and Lawrence, 2012). Aboveground damage is visible as waves of uneven cotton plant growth that may include wilting

Lesley A. Schumacher, Zane J. Grabau, David L. Wright, Ian M. Small, Hui-Ling Liao

Journal of Nematology, Volume 52 , 1–14

research-article | 03-June-2019

Field and greenhouse evaluations of soil suppressiveness to Heterodera glycines in the Midwest corn-soybean production systems

effects of rotation on soybean and corn yields (Grabau and Chen, 2016a, 2016b). Benefits of rotation crops that are non-hosts to SCN are well known. An early study showed that crop rotation reduces SCN population density and improves the soybean yield in an SCN-infested field, and greater yields are obtained with longer rotation with non-hosts (Sasser and Uzzell, 1991). However, corn is less effective than leguminous non-hosts (Miller et al., 2006; Warnke et al., 2006), and a single year of corn

Weiming Hu, Eyob Kidane, Deborah A. Neher, Senyu Chen

Journal of Nematology, Volume 51 , 1–12

Article | 14-October-2020

Likelihood of D heterozygosity in Mestizo Mexicans and Mexican Americans

Information on the gene frequencies of the Rh system in the Mexican or Mexican American population is currently not available in the medical literature, thus hindering management of pregnancies at risk for development of hemolytic disease of the newborn. Data from four recent large studies in the broader scientific literature of Mestizo Mexicans and Mexican Americans is reviewed. Gene frequencies are calculated from the pooled data. A table of gene frequencies in the Caucasian and African

Norman D. Means, Nicholas Bandarenko, Kenneth J. Moise, Jr., Mark E. Brecher

Immunohematology, Volume 17 , ISSUE 1, 22–23

Report | 12-March-2020

Application of real-time PCR and melting curve analysis in rapid Diego blood group genotyping

Marcia C. Zago Novaretti, Azulamara da Silva Ruiz, Pedro Enrique Dorlhiac-Llacer, Dalton Alencar Fisher Chamone

Immunohematology, Volume 26 , ISSUE 2, 66–70

Article | 22-January-2018

A NEW ESTIMATOR OF MEAN USING DOUBLE SAMPLING

In this paper, we consider the problem of estimation of population mean of a study variable by making use of first-phase sample mean and first-phase sample median of the auxiliary variable at the estimation stage. The proposed new estimator of the population mean is compared to the sample mean estimator, ratio estimator and the difference type estimator for the fixed cost of the survey by using the concept of two-phase sampling. The magnitude of the relative efficiency of the proposed new

Kalyan Rao Vadlamudi, Stephen A. Sedory, Sarjinder Singh

Statistics in Transition New Series, Volume 18 , ISSUE 4, 637–650

Article | 06-July-2017

A COMPARISON OF SMALL AREA AND CALIBRATION ESTIMATORS VIA SIMULATION

Domain estimates are typically obtained using calibration estimators that are direct or modified direct. They are direct if they strictly use data within the domain of interest. They are modified direct if they use both data within and outside the domain of interest. An alternative way of producing these estimates is through small area procedures. In this article, we compare the performance of these two approaches via a simulation. The population is generated using a hierarchical model that

Michael A. Hidiroglou, Victor M. Estevao

Statistics in Transition New Series, Volume 17 , ISSUE 1, 133–154

Article | 06-July-2017

ESTIMATION OF MEAN ON THE BASIS OF CONDITIONAL SIMPLE RANDOM SAMPLE

Estimation of the population mean in a finite and fixed population on the basis of the conditional simple random sampling design dependent on order statistics (quantiles) of an auxiliary variable is considered. Properties of the well-known Horvitz-Thompson and ratio type estimators as well as the sample mean are taken into account under the conditional simple random sampling designs. The considered examples of empirical analysis lead to the conclusion that under some additional conditions the

Janusz Wywiał

Statistics in Transition New Series, Volume 17 , ISSUE 3, 411–428

research-article | 31-August-2020

First report of potato rot nematode, Ditylenchus destructor Thorne, 1945 infecting Codonopsis pilosula in Gansu province, China

″, E 104°36′27″). The roots of diseased plants were collected and nematodes were extracted using a modified Baermann technique (Hooper, 1990). The results of morphological and morphometric characteristics of this nematode population were as following. The lip regions of females were plain with obscure constriction and stylets were 9.9 to 10.8 (μm) long with distinct knobs. Oval median bulbs were with valves, narrow isthmus and the posterior esophageal extended over intestines dorsally. Tail tips

Chunhui Ni, Shuling Zhang, Huixia Li, Yonggang Liu, Wenhao Li, Xuefen Xu, Zhipeng Xu

Journal of Nematology, Volume 52 , 1–2

Report

Red cell antigen prevalence predicted by molecular testing in ethnic groups of South Texas blood donors

(59.0%), and Caucasian –R1R1 (38.9%). The prevalence of Kell, Duffy, and Kidd blood group system antigens in black and Caucasian donors is comparable with published reports for the entire U.S. The black South Texas donor population had an 8.8 percent increase in prevalence of the Fy(a+b–) phenotype as compared with these published reports; the Hispanic South Texas donor population had a prevalence of 36.1 percent of the Fy(a+b–) phenotype. Regarding the Diego blood group system

Lorena I. Aranda, Linda A. Smith, Scott Jones, Rachel Beddard

Immunohematology, Volume 31 , ISSUE 4, 166–173

Article | 06-July-2017

QUALITY OF LIFE AND POVERTY IN UKRAINE – PRELIMINARY ASSESSMENT BASED ON THE SUBJECTIVE WELL-BEING INDICATORS

The paper provides an overview of the information sources, methodology and main findings of the research of quality of life and poverty using indicators of subjective well-being applied by state statistics agencies in Ukraine. The paper describes the system of indicators for self-evaluation of the attained level of well-being, the level of satisfaction from meeting the basic living needs, and the limitations in consumption abilities of selected population groups due to hard conditions. In

Oleksandr Osaulenko

Statistics in Transition New Series, Volume 17 , ISSUE 2, 237–247

Article | 21-July-2017

Species Delimitation and Description of Mesocriconema nebraskense n. sp.(Nematoda: Criconematidae), a Morphologically Cryptic, Parthenogenetic Species from North American Grasslands

indicates North American grasslands contain at least 10 phylogenetically distinct lineages of Mesocriconema that resemble, but are not, M. curvatum. Analysis of the two most common lineages reveals two distinctly different population structures. The variation in population structure suggests unique evolutionary histories associated with their diversification. These two major lineages share a sympatric distribution and their slight morphological differences contrast with a high level

MAGDALENA OLSON, TIMOTHY HARRIS, REBECCA HIGGINS, PETER MULLIN, KIRSTEN POWERS, SEAN OLSON, THOMAS O. POWERS

Journal of Nematology, Volume 49 , ISSUE 1, 42–66

Research Article | 26-September-2018

Occurrence of Sheraphelenchus sucus (Nematoda: Aphelenchoidinae) and Panagrellus sp. (Rhabditida: Panagrolaimidae) Associated with Decaying Pomegranate Fruit in Italy

Two different nematode species were recovered from pomegranate decaying fruit in two localities in Southern Italy: the mycetophagus nematode Sheraphelenchus sucus and a bacterial feeder nematode belonging to the Panagrolaimidae (Rhabditida) family. Morphometrics of the Italian population of S. sucus closely resemble that of the type population, whereas some differences were found when compared with another population from Iran. Molecular characterization of the Italian S. sucus using the 18S

ELENA FANELLI, ALBERTO TROCCOLI, NICOLA VOVLAS, GIANLUCA SCARCIA, ANNAMARIA MINCUZZI, SIMONA M. SANZANI, ANTONIO IPPOLITO, FRANCESCA DE LUCA

Journal of Nematology, Volume 49 , ISSUE 4, 418–426

Article | 01-June-2015

OPPOSITION-BASED LEARNING PARTICLE SWARM OPTIMIZATION OF RUNNING GAIT FOR HUMANOID ROBOT

This paper investigates the problem of running gait optimization for humanoid robot. In order to reduce energy consumption and guarantee the dynamic balance including both horizontal and vertical stability, a novel running gait generation based on opposition-based learning particle swarm optimization (PSO) is proposed which aims at high energy efficiency with better stability. In the proposed scheme of running gait generation, a population initiation policy based on domain knowledge is employed

Liang Yang, Song Xijia, Chunjian Deng

International Journal on Smart Sensing and Intelligent Systems, Volume 8 , ISSUE 2, 1162–1179

research-article | 17-March-2020

First report of a stunt nematode Tylenchorhynchus zeae on corn in Gansu Province, China

esophageal bulbs well developed. The vulva was located in the center of the body, and reproductive system didelphic amphidelphic. Tail conoid, with obtuse smooth terminus and phasmids almost located in the middle of the tails. Males bodies were similar to females but with slightly slender and sharper tail, with paired and relatively strong spicules, and bursa peloderan. The population showed the following morphometrics: Females (n = 20) included L  =  493.97 ± 34.36 (458.45-556.38) μm, a = 25.98 ± 2.1

Zhi Peng Xu, Hui Xia Li, Yong Gang Liu, Bao Cang Ren, Chun Hui Ni, Jin Hui Ma

Journal of Nematology, Volume 52 , 1–2

Article | 21-July-2017

Occurrence of Belonolaimus in Sinaloa, Northwestern Mexico: A New Report on Distribution and Host Range

The present study reports the occurrence of the genus Belonolaimus in the state of Sinaloa, Mexico, associated with native plants (i.e., Ziziphus amole and Stenocereus alamosensis) in a natural coastal ecosystem. Both morphological and molecular approaches were employed to characterize the Sinaloa population. Notwithstanding of some morphological and morphometric variation between Belonolaimus from Sinaloa and other valid species, the characterization indicates that this population might belong

MANUEL MUNDO-OCAMPO, J. G. BALDWIN, T. J. PEREIRA, J. R. CAMACHO-BAEZ, A. D. ARMENTA-BOJORQUEZ, M. CAMACHO-HARO, J. O. BECKER

Journal of Nematology, Volume 49 , ISSUE 1, 103–113

research-article | 15-April-2019

Dynamics of the impacts of Pratylenchus penetrans on Gisela® cherry rootstocks

soil (Edgerton and Parker, 1958; Olthoff et al., 1989; Mai et al., 1994). Data relating P. penetrans populations to the vigor or yield of established, fruit bearing trees are limited, although such data would be valuable for illustrating the potential benefits of targeted nematode management in producing orchards. Detection and interpretation of relationships between nematode population densities and the vigor or yield of established trees, or any other perennial crop, under field conditions is

Thomas Forge, Denise Neilsen, Gerry Neilsen, Suzanne Blatt

Journal of Nematology, Volume 51 , 1–10

research-article | 30-November-2019

Molecular characterization of the Pratylenchus vulnus populations on cereals in Turkey

and sesame (Sesamum indicum) in Antalya and Mersin provinces (Saltukoglu, 1974; Borazanci, 1977; Kepenekci, 2001, 2002). It is firstly recorded on cereals in Turkey by Yavuzaslanoglu et al. (2020) using species-specific PCR technique. However, positive control specimen was not available in the study. Real-time PCR with positive control was performed for the 17 P. vulnus populations in the current study. In addition, one population was sequenced and recorded in GenBank. Material and methods

Mehmet Sait Karaca, Elif Yavuzaslanoglu, Gul Imriz, Ozlem Ates Sonmezoglu

Journal of Nematology, Volume 52 , 1–4

research-article | 26-March-2021

First report of Bitylenchus ventrosignatus (Tobar Jiménez, 1969) Siddiqi, 1986 associated with wild grass in Botswana

addition, they differ in the vulval region (posterior with irregular undulation vs lacking irregular undulation). However, compared with T. fatimae Khan et al., 2004, they differ in the basal bulb (pyriform vs cylindrical), gubernaculum length (8–9 vs 11.5–12 µm), and irregular undulation at the posterior part of the vulva (present vs absent) (see Geraert, 2011). Morphometrical differences of the Botswanan population compared with the other populations of the same species are considered a geographical

Ebrahim Shokoohi

Journal of Nematology, Volume 53 , 1–9

Article | 21-July-2017

Effect of Application Timing of Oxamyl in Nonbearing Raspberry for Pratylenchus penetrans Management

newly planted raspberry trials on a range of varieties. Oxamyl was applied twice in April (2013 only), May, and June, and these treatments were compared to each other as well as a nontreated control. Population densities of P. penetrans were determined in the fall and spring postoxamyl applications for at least 1.5 years. Plant vigor was also evaluated in the trials. Combined results from 2012 and 2013 trials indicated that application timing in the spring was not critical. Oxamyl application

INGA A. ZASADA, THOMAS W. WALTERS

Journal of Nematology, Volume 48 , ISSUE 3, 177–182

Article | 06-July-2017

SMALL AREA ESTIMATION IN THE GERMAN CENSUS 2011

In 2011, Germany conducted the first census after the reunification. In contrast to a classical census, a register-assisted census was implemented using population register data and an additional sample. This paper provides an overview of how the sampling design recommendations were set up in order to fulfil legal requirements and to guarantee an optimal but still flexible source of information. The aim was to develop a design that fosters an accurate estimation of the main objective of the

Ralf Münnich, Jan Pablo Burgard, Siegfried Gabler, Matthias Ganninger, Jan-Philipp Kolb

Statistics in Transition New Series, Volume 17 , ISSUE 1, 25–40

Research Article | 05-July-2017

Association Between Participating in Noncompetitive or Competitive Sports and Mental Health among Adolescents – a Norwegian Population-based Cross-sectional Study

Sara Breistøl, Jocelyne Clench-Aas, Betty Van Roy, Ruth Kjærsti Raanaas

Scandinavian Journal of Child and Adolescent Psychiatry and Psychology, Volume 5 , ISSUE 1, 28–38

research-article | 17-April-2019

Effect of spirotetramat and fluensulfone on population densities of Mesocriconema xenoplax and Meloidogyne incognita on peach

., Citrus spp., and Juglans spp. and observed that the populations of Xiphinema spp. and M. xenoplax were reduced 36 and 56 d after treatment, respectively. It was also observed that 50% of the population of all plant-parasitic nematodes, including Meloidogyne spp., were reduced if irrigation was withheld for up to 2 wk (McKenry et al., 2009). Smiley et al. (2011) applied spirotetramat at 0.088 kg a.i./ha to wheat fields that were infested with the cyst nematode, Heterodera avenae, and found that

Andrew M. Shirley, James P. Noe, Andrew P. Nyczepir, Phillip M. Brannen, Benjamin J. Shirley, Ganpati B. Jagdale

Journal of Nematology, Volume 51 , 1–10

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