scholarly journals Fertility Differences Between Migrants and Stayers in a Polygamous Context: Evidence from Senegal

2021 ◽  
Author(s):  
Elisabeth K. Kraus ◽  
Amparo González-Ferrer
Keyword(s):  
Life Histories ◽  
First Year ◽  
Disruptive Effect ◽  
Specific Context ◽  
Differential Fertility ◽  
Negative Effect ◽  
Timing Of Births ◽  
Geographic Separation ◽  
The Empirical Analysis ◽  
Migrant Fertility

AbstractThis study takes a ‘country-of-origin’ or dissimilation perspective to compare the timing of births and completed fertility of international migrants and of those who stay at origin. In order to disentangle selection effects determining differential fertility behaviour of migrants, other mechanisms explaining migrant fertility (disruption, interrelation of events) are also examined. Furthermore, we take into consideration the prevalence of polygamy in Senegal to enhance our knowledge of migrant fertility in this specific context. For the empirical analysis, we use longitudinal data collected in the framework of the MAFE-Senegal project (Migrations between Africa and Europe), which includes retrospective life histories of non-migrants in Senegal and migrants in France, Italy and Spain. We estimate discrete time hazard models and Poisson regressions for male and female respondents separately to analyse the timing of first and higher-order births as well as completed fertility. The results show a strong disruptive effect of migration on childbearing probabilities for men and women, clearly related to the geographic separation of partners due to the out-migration of the man. Increased birth risks in the first year upon arrival could be observed for migrant women following their husbands to Europe, suggesting an interrelation of migration and fertility events. Regarding completed fertility, migrants have significantly fewer children by the age of 40 compared to their non-migrant counterparts, which among men is largely driven by a strong negative effect of polygamous migrants.

scholarly journals Impact of “non-lethal” tarsal clipping on bumble bees (Bombus vosnesenskii) may depend on queen stage and worker size

2021 ◽  
Author(s):  
John M. Mola ◽  
Clara Stuligross ◽  
Maureen L. Page ◽  
Danielle Rutkowski ◽  
Neal M. Williams
Keyword(s):  
Genetic Material ◽  
Population Monitoring ◽  
First Year ◽  
Negative Effects ◽  
Worker Size ◽  
Monitoring Tools ◽  
Individual Survival ◽  
Body Sizes ◽  
Negative Effect ◽  
Worker Caste

Abstract Recent bumble bee declines have prompted the development of novel population monitoring tools, including the use of putatively non-lethal tarsal clipping to obtain genetic material. However, the potential side effects of tarsal clipping have only been tested in the worker caste of a single domesticated species, prompting the need to more broadly test whether tarsal clipping negatively affects sampled individuals. To determine if tarsal clipping reduces queen survivorship and colony establishment, we collected wild queens of Bombus vosnesenskii and clipped tarsi from a single leg of half the individuals. We reared captive queens and estimated survivorship and nest establishment success. We also clipped tarsi of workers from a subset of colonies across a range of body sizes. We found no consistent negative effect of clipping on queen survival. In the first year, clipped nest-searching queens suffered heavy mortality, but there was no effect on foraging queens. The following year, we found no effect of clipping on queen survival or establishment. Clipping did not reduce overall worker survival but reduced survivorship for those in the smallest size quartile. Implications for insect conservation Our findings suggest tarsal clipping does not have consistent negative effects on individual survival. However, our results varied with queen behavioral state, year, and worker size, suggesting differences within and among species and interactions with landscape stressors warrant further study. In the interim, we recommend researchers and conservationists minimize the use of tarsal clipping for sensitive species, populations, or small workers except in cases of exceptional scientific need.

PRIOR MATHEMATICS PERFORMANCE, STATISTICS ANXIETY, SELF-EFFICACY AND EXPECTATIONS FOR PERFORMANCE IN STATISTICS: A SURVEY OF SOCIAL SCIENCES STUDENTS IN A CARIBBEAN INSTITUTION OF HIGHER EDUCATION

2021 ◽  
Vol 20 (1) ◽  
pp. 4
Author(s):  
TALIA RANDA ESNARD ◽  
FAREENA MARYAM ALLADIN ◽  
KEISHA CHANDRA SAMLAL
Keyword(s):  
Social Sciences ◽  
Self Efficacy ◽  
Academic Discipline ◽  
Relative Effect ◽  
Mathematics Performance ◽  
First Year ◽  
Statistics Anxiety ◽  
Negative Effect ◽  
Performance Statistics ◽  
First Year University

The objectives of this study were to examine (i) the expectation for performance (EFP) in statistics of first year university students, (ii) the relative effect of previous mathematics performance (PMP), perceived statistical self-efficacy (SSE), and statistics anxiety (SA) for understanding these expectations, and (iii) whether students’ EFP scores differ based on sex and academic discipline. Findings point to average to high EFP in statistics, with no differences in these levels based on sex or academic discipline. PMP had little effect on students’ EFP, but, moderate effects on their levels of SA. While SSE positively affected both students’ SA, this measure produced a negative effect on their EFP in statistics. Both SSE and SA negatively affected students’ EFP in statistics, but with minimally higher levels for the latter.

Making Sense of “Outsiderness”: How Life History Informs the College Experiences of “Nontraditional” Students

2018 ◽  
Vol 25 (5) ◽  
pp. 500-512 ◽  
Author(s):  
Michael Lanford
Keyword(s):  
Nontraditional Students ◽  
Life Histories ◽  
Formal Education ◽  
College Experiences ◽  
First Year ◽  
College Level ◽  
Nontraditional College Students ◽  
Educational Trajectories ◽  
Making Sense ◽  
Return To College

This article presents the life histories of two “nontraditional” college students—Demetrius and Christine—as a means to explore the concept of “outsiderness” and its impact on undergraduate student success. Through multiple interviews and observations conducted over the course of a full year, the article first outlines the life circumstances that compelled both students to leave formal education during adolescence. Then, the article details how Demetrius and Christine managed to return to college despite formidable personal and financial challenges. Although both students demonstrate tremendous promise in their college-level coursework, they are wary of their own college readiness, primarily due to their “nontraditional” educational trajectories and a lack of clarity about instructors’ expectations. Hence, the article concludes by considering the forms of support that might help similar nontraditional students succeed in first-year coursework, and eventually graduate from college.

Factors which Influence Students Enterpreneurship Intentions: The Role of Education Programs, Subjective Norms and Perceived Behavioral Control

2017 ◽  
Vol 7 (1) ◽  
pp. 173-179
Author(s):  
Elona Cera ◽  
Nevila Furxhiu
Keyword(s):  
Public Administration ◽  
Positive Impact ◽  
Behavioral Control ◽  
Subjective Norms ◽  
The Other ◽  
First Year ◽  
Perceived Behavioral Control ◽  
Education Programs ◽  
The Empirical Analysis

Abstract The entrepreneur aim is a very important factor, which is considered as a key element in youth employment and the development of the country's welfare. Literature suggests that same of factors which influence enterpreneurship intention are educatin programs, subjective norms and perceived behavioral control. This study was conducted based on an intentional sample, which consisted of master's student, respectively the first year Business Administration and Public Administration, in Economic Faculty of Tirana University. The sample is composed with 63 people. The empirical analysis is based in the main two elements: first, the use of a standardized instrument and secondly, statistical analysis, factor analysis, correlation and linear regression. The study shows that education programs and subjective norms don’t relate positively with the entrepreneur aim. On the other hand, it emerges that perceived behavioral control has a positive impact on the development of entrepreneurial goal.

scholarly journals Attitudes and Reactions of Medical Students to the Dissection Room

2021 ◽  
Vol 15 (5) ◽  
pp. 917-919
Keyword(s):  
Longitudinal Study ◽  
Medical Students ◽  
Coping Strategy ◽  
Skin Irritation ◽  
First Year ◽  
Human Cadaver ◽  
Cadaver Dissection ◽  
Negative Effect ◽  
Human Cadavers ◽  
Loss Of Appetite

Background: Students get their first experiences of dissecting human cadavers in the practical classes of anatomy. These experiences may help in their profession, but may also create some problems for students Aims: To find out the attitudes and reactions of medical students to the dissection room. Methods: A longitudinal study was conducted on 309 first year MBBS students at the local college of Lahore with no previous experience of cadaver dissection. Students were filled a questionnaire. The questionnaire designedwas based to identify the feelings and problems faced by the students in their first exposure to the human cadaver. Results: Almost 25% students experience no symptom on first entry into the dissecting room. The commonest symptoms of 75% students were insomnia, dizziness, sweating, loss of appetite and palpitation. Other symptoms reported were breathlessness, skin irritation, irritation of the eye, etc. Focusing on task was the main coping strategy used by majority of students. Conclusion: The majority of the students initially experience nausea and fear that may reduce with time while excitement and interest had increased on ensuing exposure to dissection.Study concluded that the negative effect of dissection room on students is less than the benefits of dissection of cadaver. Anticipation felt by the students to learn dissecting the cadaver was relatively high. Keywords: Cadaver, Dissection room, Medical students.

The Impact of Tariff Regulation on Potential Investor’s Decision in District Heating

2016 ◽  
Vol 2016 (5) ◽  
pp. 92-112
Author(s):  
Viktoriya Gimadi
Keyword(s):  
Current System ◽  
Investment Decision ◽  
District Heating ◽  
Rate Of Return ◽  
Total Revenue ◽  
Negative Effect ◽  
The Impact ◽  
The Empirical Analysis ◽  
Efficiency Indicators

The paper analyses the ways how long-term tariff regulation impacts on investment decision in district heating in Russia. Concessions in district heating gave us good chance to analyze impact of tariff regulation on the potential concessionaire decision who is choosing between agreements. The empirical analysis shows that potential concessionaire makes such decisions taking into account specific tariff parameters. The probability of attracting potential investor increases because of indicated volume of rate of return or including energy efficiency indicators; the ratio of operating expenses has negative effect on the probability. The growth rates of total revenue indicated for all years of the planned agreement has no effect on the probability. Potential concessionaire prefers to choose agreements, where the volume of investment commitments is lower, because he is not ready to assume ambitious commitments in the district heating in the current system of regulation.

scholarly journals Impact of Multilateral Trade Liberalization on Resource Revenue

Economies ◽  
2018 ◽  
Vol 6 (4) ◽  
pp. 60 ◽  
Author(s):  
Sena Gnangnon ◽  
Jean-François Brun
Keyword(s):  
Trade Liberalization ◽  
Full Sample ◽  
Multilateral Trade ◽  
Domestic Trade ◽  
Generalized Methods Of Moments ◽  
Negative Effect ◽  
Multilateral Trade Liberalization ◽  
Methods Of Moments ◽  
The Impact ◽  
The Empirical Analysis

This paper investigates the impact of multilateral trade liberalization on resource revenue, using an unbalanced panel dataset comprising 57 countries, including both developed and developing countries, over the period 1995–2015. By means of the two-step system Generalized Methods of Moments (GMM) estimator, the empirical analysis suggests that multilateral trade liberalization exerts a negative effect on resource revenue, probably at the benefit of non-resource revenue. However, this effect over the full sample hides a positive effect of multilateral trade liberalization on resource revenue in poorest countries, and a negative effect of multilateral trade liberalization on resource revenue in non-poorest countries of the sample. Additionally, the negative effect of multilateral trade liberalization on resource revenue over the full sample appears to be dependent on the degree of domestic trade liberalization. In fact, multilateral trade liberalization genuinely induces a reducing effect on resource revenue only if countries liberalize their domestic trade regime beyond a minimum level.

scholarly journals Mandatory Audit Firm Rotation for Listed Companies: The Effects in the Netherlands

2020 ◽  
Vol 21 (4) ◽  
pp. 937-966
Author(s):  
Bas de Jong ◽  
Steven Hijink ◽  
Lars in ’t Veld
Keyword(s):  
The Netherlands ◽  
Public Interest ◽  
Audit Quality ◽  
Audit Fees ◽  
Listed Companies ◽  
First Year ◽  
Financial Reports ◽  
Audit Firm ◽  
Negative Effect ◽  
Mandatory Audit Firm Rotation

AbstractThe Audit Regulation was adopted in 2014 to address many of the perceived failings in the market for statutory audits. It introduced mandatory audit firm rotation for public-interest entities, including listed companies, as of 17 June 2020/2023. Mandatory audit firm rotation was also considered by the Dutch legislator in 2012. Therefore, many Dutch listed companies had already switched audit firm in anticipation of the national requirement. In this article, we investigate the effects of mandatory audit firm rotation in the Netherlands by examining the financial reports of Dutch listed firms over the financial years 2012–2016 and by conducting a survey among stakeholders. We conclude that there is broad support for mandatory audit firm rotation in the Netherlands. Although mandatory audit firm rotation was seen as controversial at the time of adoption, it is now considered desirable by various stakeholders, including auditors themselves. However, mandatory audit firm rotation appears to have had some adverse effects. Most notably, our study shows a higher probability of errors in first year audits. The discount in audit fees provided by audit firms to lucrative larger public-interest entities for first year audits—the trophy client effect—may exacerbate the negative effect on audit quality. The Audit Regulation’s goals to improve the market for statutory audits have not been met so far.

First Year Principal Succession: A Study of Leadership, Role, and Change

1997 ◽  
Vol 7 (4) ◽  
pp. 369-385 ◽  
Author(s):  
Jayne A. Legore ◽  
Laurence Parker
Keyword(s):  
Qualitative Research ◽  
School Context ◽  
Theoretical Models ◽  
Leadership Role ◽  
School Staff ◽  
First Year ◽  
Specific Context ◽  
Principal Succession ◽  
New Principal ◽  
Positive Force

This paper examines the salient theoretical models of principal succession as articulated by Cosgrove and Miskel, Hart, and Ogawa. The authors attempted to explore the issue of first year principal succession with regard to the school context of changes made by the new principal and reactions of the school staff. We found that in this instance the insider choice for principal exhibited outsider characteristics, as the successor was seen as a positive force to support teachers and began initiatives to improve the school. However, our conclusions called for more case studies and qualitative research of principal succession in order to unearth the complexities of the theoretical models juxtaposed against the specific context of schools.

Agronomic performance of Pesticide Free Production under two crop rotations

2005 ◽  
Vol 20 (2) ◽  
pp. 91-100 ◽  
Author(s):  
A. Schoofs ◽  
M.H. Entz ◽  
R.C. Van Acker ◽  
J.R. Thiessen Martens ◽  
D.A. Derksen
Keyword(s):  
Crop Rotation ◽  
Cropping System ◽  
Crop Rotations ◽  
First Year ◽  
Weed Species ◽  
Weed Density ◽  
Crop Selection ◽  
Long Term Study ◽  
Alfalfa Hay ◽  
Negative Effect

AbstractPesticide Free Production (PFP) is a pesticide reduction system that removes in-crop pesticide use on a yearly basis. A long-term study was established in 2000 to investigate the effect of crop rotation and frequency of inclusion on the success of PFP, as well as the effect of PFP on subsequent crops in the rotation. The crop rotations being compared were linola–oat–canola–wheat and linola–oat–alfalfa–alfalfa. PFP occurred either once in the rotation (oat) or twice (linola–oat). Weed density and yield were measured in the crops that followed PFP. Oat was a more successful PFP crop than linola because it was better able to compete with weeds. Furthermore, PFP oat had a higher weed density when it followed PFP linola, but this did not influence PFP oat yield. Under the conditions of this study, PFP linola was more successful in the annual crop rotation. Inclusion of alfalfa hay crops in the crop rotation was not effective in lowering weed pressure and, in fact, may have contributed to an increase in weed density. It is concluded that weed species present influenced the effectiveness of alfalfa in facilitating PFP, because major weeds in the study are not effectively controlled by alfalfa. PFP did not have a negative effect on following crops in the rotation (i.e. canola–wheat or alfalfa), regardless of whether one or two consecutive years of PFP occurred in the rotation. No additional herbicide was necessary for weed control in the crops that followed PFP; however, alfalfa hay was weedier for the first year following PFP. This study indicates that PFP is a viable way to reduce herbicide use in a cropping system and that attention needs to be paid to PFP crop selection and crop rotation, particularly when the PFP crop is less competitive with weeds.

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