scholarly journals KEANEKARAGAMAN TUMBUHAN SUKU PIPERACEAE DI KAWASAN AIR TERJUN LOMBONGO PROVINSI GORONTALO

2022 ◽  
Vol 7 (1) ◽  
pp. 95-102
Author(s):  
Dewi Baderan ◽  
Dewi Wahyuni K Baderan ◽  
Syam S Kumaji
Keyword(s):  
Probability Sample ◽  
Sampling Probability

Tumbuhan suku Piperaceae merupakan kelompok tumbuhan berbunga yang mempunyai ciri khas aromatik dan hidup di daerah hutan hujan tropika. Berdasarkan survei awal di kawasan air terjun Lombongo Provinsi Gorontalo, wilayah Taman Nasional Bogani Nani Wartabone, didapati berbagai spesies dari suku Piperaceae. Namun belum teridentifikasi jenis Piper apa saja serta bagaimana nilai indeks keanekaragaman di kawasan air terjun tersebut. Tujuan penelitian ini adalah untuk mengetahui bagaimana keanekaragaman jenis tumbuhan suku Piperaceae yang ada di kawasan air terjun Lombongo Provinsi Gorontalo. Teknik pengumpulan data menggunakan metode eksploratif atau jelajah dengan menggunakan teknik sampling Probability Sample. Hasil penelitian menemukan 9 jenis tumbuhan suku Piperaceae dengan dua cara hidup yang berbeda yakni, terstrial dan epifit. Nilai indeks keanekaragaman tumbuhan suku Piperaceae yang terdapat di kawasan air terjun Lombongo adalah 2.17 dengan kriteria sedang yang menunjukan keadaan ekosistem yang cukup stabil.

Comparison of Men Who Have Sex with Men in Clinical Samples with MSM in a Community Probability Sample

2008 ◽  
Author(s):  
Devon D. Brewer ◽  
Matthew R. Golden ◽  
Robert W. Wood ◽  
Barbara Krekeler ◽  
Hunter H. Handsfield
Keyword(s):  
Clinical Samples ◽  
Probability Sample ◽  
Sex With Men

Battery-Related Injuries in Children and Adults

2020 ◽  
Vol 64 (1) ◽  
pp. 1665-1670
Author(s):  
Jacqueline Zimmermann ◽  
Danielle King ◽  
Caroline Crump
Keyword(s):  
Emergency Room ◽  
Surveillance System ◽  
Rechargeable Batteries ◽  
Injury Surveillance ◽  
Consumer Product ◽  
Age Group ◽  
Injury Surveillance System ◽  
Probability Sample ◽  
Injury Data ◽  
Button Cell

The aim of the current study was to analyze the circumstances behind battery injuries, including the mode of injuries experienced (e.g., a shock or consumption), as well as the battery types and products most frequently involved in battery injuries. The National Electronic Injury Surveillance System (NEISS), a probability sample of US hospitals that collects information from emergency room (ER) visits related to a consumer product, was utilized. Injury data from the NEISS database was coded to identify a) the accident mode that led to the injury, b) the battery type involved, and c) the product that was powered by the battery or charger, if available. The data revealed that battery-related injuries were most often associated with (1) children consuming button cell batteries associated with toys and other household objects, and (2) adults becoming burned when handling vehicle batteries. Surprisingly, injuries associated with rechargeable batteries were the least frequent; however, when burns occurred, they were predominantly related to e- cigarettes, as well as vehicles. Results are discussed in terms of general exposure to specific battery types and products analyzing these battery types within each age group.

What Is Rough Sex, Who Does It, and Who Likes It? Findings from a Probability Sample of U.S. Undergraduate Students

2021 ◽  
Author(s):  
Debby Herbenick ◽  
Tsung-chieh Fu ◽  
Dubravka Svetina Valdivia ◽  
Callie Patterson ◽  
Yael Rosenstock Gonzalez ◽  
...  
Keyword(s):  
Undergraduate Students ◽  
Probability Sample

scholarly journals Changing the Order of Factors Does Not Change the Product but Does Affect Students’ Answers, Especially Girls’ Answers

2021 ◽  
Vol 11 (5) ◽  
pp. 201
Author(s):  
Clelia Cascella ◽  
Chiara Giberti ◽  
Giorgio Bolondi
Keyword(s):  
Experimental Design ◽  
Rasch Model ◽  
Achievement Tests ◽  
Mathematical Content ◽  
Probability Sample ◽  
Decimal Numbers ◽  
Common Items ◽  
The Rasch Model ◽  
Grade 8

This study is aimed at exploring how different formulations of the same mathematical item may influence students’ answers, and whether or not boys and girls are equally affected by differences in presentation. An experimental design was employed: the same stem-items (i.e., items with the same mathematical content and question intent) were formulated differently and administered to a probability sample of 1647 students (grade 8). All the achievement tests were anchored via a set of common items. Students’ answers, equated and then analysed using the Rasch model, confirmed that different formulations affect students’ performances and thus the psychometric functionality of items, with discernible differences according to gender. In particular, we explored students’ sensitivity to the effect of a typical misconception about multiplication with decimal numbers (often called “multiplication makes bigger”) and tested the hypothesis that girls are more prone than boys to be negatively affected by misconception.

scholarly journals Patterns of sexual mixing with respect to social, health and sexual characteristics among heterosexual couples in England: analyses of probability sample survey data

2014 ◽  
Vol 143 (7) ◽  
pp. 1500-1510 ◽  
Author(s):  
P. PRAH ◽  
A. J. COPAS ◽  
C. H. MERCER ◽  
A. NARDONE ◽  
A. M. JOHNSON
Keyword(s):  
General Health ◽  
Health Behaviours ◽  
Demographic Characteristics ◽  
Sample Survey ◽  
Heterosexual Couples ◽  
Men And Women ◽  
Positive Correlation ◽  
Probability Sample ◽  
Living Together ◽  
Sexual Characteristics

SUMMARYPatterns of sexual mixing are major determinants of sexually transmitted infection (STI) transmission, in particular the extent to which high-risk populations mix with low-risk populations. However, patterns of mixing in the general population are poorly understood. We analysed data from a national probability sample survey of households, the Health Survey for England 2010. A total of 943 heterosexual couples living together, where at least one partner was aged between 16–44 years, were included. We used correlation coefficients to measure the strength of similarities between partners with respect to demographic characteristics, general health, health behaviours and sexual history. Males were on average 2 years older than their female partners, although this age difference ranged from a median of 0 years in men aged 16–24 years to a median of 2 years in men aged 35–44 years. A positive correlation between partners was found for all demographic characteristics. With respect to general health and health behaviours, a strongly positive correlation was found between men and women in reporting alcohol consumption at ⩾3 days a week and smoking. Men typically reported greater numbers of sexual partners than their female partner, although men and women with more partners were more likely to mix with each other. We have been able to elucidate the patterns of sexual mixing between men and women living together in England. Mixing based on demographic characteristics was more assortative than sexual characteristics. These data can better inform mathematical models of STI transmission.

Prevalence Estimates and Health-Related Correlates of Cognitive Impairment From a Probability Sample of Community-Residing Latino Elders

2007 ◽  
Vol 19 (4) ◽  
pp. 559-574 ◽  
Author(s):  
Mildred Ramírez ◽  
Jeanne A. Teresi ◽  
Douglas Holmes ◽  
Virginia Martínez ◽  
Rafael Lantigua
Keyword(s):  
Cognitive Impairment ◽  
Probability Sample ◽  
Prevalence Estimates ◽  
Health Related
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