17 papers · ranked by Valyu relevance
Paul Slater, Felicity Hasson
Data measurement, instrument selection, and sampling are fundamental elements in quantitative research and data collection. Data measurement is the systematic assignment of numeric values or categories to variables to permit measurement with precision and accuracy. Instrument selection involves selecting the right tool…
Alfredo Mayor, Deus S. Ishengoma, Joshua L. Proctor, Robert Verity
Title: Highlights 1. Evidence generated from malaria molecular surveillance (MMS) can inform decision making by malaria control programs, that is, early detection of genetic variants that confer partial resistance to malaria therapy drugs (pfkeltch13), identifying transmission sources, and characterizing malaria…
Bess Hardwick, Deirdre Kerdraon, Hanna M. K. Rogers, Dimby Raharinjanahary + 9 more
'Dimby Raharinjanahary' 'Eric Tsiriniaina Rajoelison' 'Tommi Mononen' 'Petteri Lehikoinen' 'Gaia Banelyte' 'Arielle Farrell' 'Brian L. Fisher' 'Tomas Roslin' 'Otso Ovaskainen' 'Bernd Schierwater'] As the technology for mass identification of species is advancing rapidly, we developed a field sampling method that takes…
Rhonda K. Roby, Rosana A. Wiscovitch‐Russo, Rebecca Hart, Amanda E. Appel + 6 more
'Amanda E. Appel' 'Manija A. Kazmi' 'Thomas Huber' 'Karina C. Åberg' 'Thomas P. Sakmar' 'José A. Lorente' 'Norberto Gonzalez‐Juarbe'] Title: Abstract The genomic analysis of biological material from artworks can be used to guide curation, preservation, and restoration. Additionally, human DNA recovered from artworks…
Kanwal Iqbal, Syed Muhammad Muslim Raza, Tahir Mahmood, Muhammad Riaz + 1 more
'Muhammad Riaz' 'Mohamed R. Abonazel'] Advancements in sensor technology have brought a revolution in data generation. Therefore, the study variable and several linearly related auxiliary variables are recorded due to cost-effectiveness and ease of recording. These auxiliary variables are commonly observed as…
Bo Jiao
Graph sampling plays an important role in data mining for large networks. Specifically, larger networks often correspond to lower sampling rates. Under the situation, traditional traversal-based samplings for large networks usually have an excessive preference for densely-connected network core nodes. Aim at this…
Matias López
The literature frequently recommends purposive sampling of elites based on the assumptions that random sampling negatively affects the response rate and that it induces bias. I test these assumptions drawing on metadata from 282 samples of political, economic, and social elites, and on microdata from 2,658 elites.…
Fariha Sohil, Muhammad Umair Sohail, Javid Shabbir, Dejan Dragan
The current study deals with imputation of item non-response in probability proportional to size (PPS) sampling. A new imputation procedure is proposed by using the known co-variance between the study variable and the auxiliary variable in the case of quantitative sensitive study variable by considering the…
Keith R. Baillargeon, Charles R. Mace
In the wake of the COVID-19 global pandemic, self-administered microsampling tools have reemerged as an effective means to maintain routine healthcare assessments without inundating hospitals or clinics. Finger-stick collection of blood is easily performed at home, in the workplace, or at the point-of-care, obviating…
Stefano Dugheri, Nicola Mucci, Giovanni Cappelli, Lucia Trevisani + 4 more
'Alessandro Bonari' 'Elisabetta Bucaletti' 'Donato Squillaci' 'Giulio Arcangeli'] The solid-phase microextraction (SPME), invented by Pawliszyn in 1989, today has a renewed and growing use and interest in the scientific community with fourteen techniques currently available on the market. The miniaturization of…
Kelly Whittaker, Ying-Qing Mao, Yongping Lin, Huihua Zhang + 3 more
'Siwei Zhu' 'Hannah Peck' 'Ruo-Pan Huang'] Dried blood samples (DBSs) have many advantages; yet, impediments have limited the clinical utilization of DBSs. We developed a novel volumetric sampling device that collects a precise volume of blood, which overcomes the heterogeneity and hematocrit issues commonly…
José S. Câmara, Rosa Perestrelo, Cristina V. Berenguer, Carolina F. P. Andrade + 7 more
'Carolina F. P. Andrade' 'Telma M. Gomes' 'Basit Olayanju' 'Abuzar Kabir' 'Cristina M. R. Rocha' 'José António Teixeira' 'Jorge A. M. Pereira' 'Constantinos K. Zacharis'] Green extraction techniques (GreETs) emerged in the last decade as greener and sustainable alternatives to classical sample preparation procedures…
Kerstin Thurow
Analytical measurement methods are used in different areas of production and quality control, diagnostics, environmental monitoring, or in research applications. If direct inline or online measurement methods are not possible, the samples taken have to be processed offline in the manual laboratory. Automated processes…
Francisca Nordfalk, Anja M. B. Jensen
This study is based on semi-structured interviews with mothers of newborn babies. At the time of interviews, babies had an average age of 7 months. We recruited the participants through Facebook and two Danish online communities for parents, [https://www.min-mave.dk]() and [https://www.baby.dk](). Facebook and online…
Emma M. Siritzky, Patrick H. Cox, Sydni M. Nadler, Justin N. Grady + 2 more
'Dwight J. Kravitz' 'Stephen R. Mitroff'] Standard cognitive psychology research practices can introduce inadvertent sampling biases that reduce the reliability and generalizability of the findings. Researchers commonly acknowledge and understand that any given study sample is not perfectly generalizable, especially…
Kamila Komajda, Grzegorz Teresiński
Microsampling is a technique involving the collection of a small amount of biological material in a volume of several to dozens of microliters. The most common material collected is blood from a fingertip. Following a finger prick, dry blood spots are formed after being transferred to a carrier. The method is…
Inês Campos, Hernâni Gonçalves, João Bernardes, Luísa Castro + 7 more
'Aimée Lovers' 'Giulia Baldazzi' 'Nicolò Pini' 'Danilo Pani' 'Antoniya Georgieva' 'Patrice Abry' 'Martin Gerbert Frasch'] Monitoring fetal heart rate (FHR) through cardiotocography is crucial for the early diagnosis of fetal distress situations, necessitating prompt obstetrical intervention. However, FHR signals are…