| 1. |
- Ahmed, M., et al.
(författare)
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Search for the lepton-family-number nonconserving decay μ +→e +γ
- 2002
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Ingår i: Physical Review D. - : American Physical Society. - 1550-7998 .- 1550-2368. ; 65:11
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Tidskriftsartikel (refereegranskat)abstract
- The MEGA experiment, which searched for the muon- and electron-number violating decay μ +→e + γ, is described. The spectrometer system, the calibrations, the data taking procedures, the data analysis, and the sensitivity of the experiment are discussed. The most stringent upper limit on the branching ratio, B(μ + →e + γ)<1.2×10 -11 with 90% confidence, is derived from a likelihood analysis.
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| 2. |
- Szymanski, J. J., et al.
(författare)
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A study of the decay mu –> e gamma by the MEGA experiment
- 1996
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Ingår i: Proceedings, 9th Meeting, DPF'96, Minneapolis, USA, August 11-15, 1996. Vol. 1, 2.. ; , s. 1450-1452
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Konferensbidrag (refereegranskat)
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| 3. |
- Lakens, Daniel, et al.
(författare)
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Justify your alpha
- 2018
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Ingår i: Nature Human Behaviour. - : Nature Publishing Group. - 2397-3374. ; 2:3, s. 168-171
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Tidskriftsartikel (refereegranskat)abstract
- In response to recommendations to redefine statistical significance to P ≤ 0.005, we propose that researchers should transparently report and justify all choices they make when designing a study, including the alpha level.
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| 4. |
- Hasan, Badrul, et al.
(författare)
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High Prevalence of Antibiotic Resistance in Pathogenic Escherichia coli from Large- and Small-Scale Poultry Farms in Bangladesh
- 2011
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Ingår i: Avian diseases. - 0005-2086 .- 1938-4351. ; 55:4, s. 689-692
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Tidskriftsartikel (refereegranskat)abstract
- Antibiotic resistance in avian bacterial pathogens is a common problem in the Bangladesh poultry industry. The aim of the present study was to provide information on the present status of antibiotic resistance patterns in avian pathogenic Escherichia coli in Bangladesh. Of 279 dead or sick poultry of different ages, 101 pathogenic E. coli strains isolated from broilers and layer hens with colibacillosis infections were screened to determine phenotypic expression of antimicrobial resistance against 13 antibiotics used in both veterinary and human medicine in Bangladesh. Of 101 pathogenic E. coli isolates, more than 55% were resistant to at least one or more of the tested compounds, and 36.6% of the isolates showed multiple-drug-resistant phenotypes. The most common resistances observed were against tetracycline (45.5%), trimethoprim-sulphamethoxazole (26.7%), nalidixic acid (25.7%), ampicillin (25.7%), and streptomycin (20.8%). Resistance to ciprofloxacin (12.9%), chlormaphenicol (8.9%), nitrofurantoin (2%), and gentamicin (2%) was also observed, and none of the isolates were resistant to tigecycline as well as extended spectrum beta-lactamase (ESBL) producers. One isolate was resistant to cefuroxime (1%), cefadroxil (1%), and mecillinam (1%) but was not an ESBL producer. Resistance rates, although significant in Bangladeshi isolates, were found to be lower than those reported for avian isolates from the Republic of Korea and clinical, avian, and environmental isolates from Bangladesh. The high level of antibiotic resistance in avian pathogens from Bangladesh is worrisome and indicates that widespread use of antibiotics as feed additives for growth promotion and disease prevention could have negative implications for human and animal health and the environment.
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| 5. |
- Ahmed, Ali M., Professor, 1977-, et al.
(författare)
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Are people fuzzy about who they work with? : An experimental test of Becker’s coworker discrimination hypothesis
- 2021
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Ingår i: The Social Science Journal. - Amsterdam : Taylor & Francis. - 0362-3319 .- 1873-5355. ; 58:4, s. 477-483
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Tidskriftsartikel (refereegranskat)abstract
- We used an experiment to investigate whether people’s decisions over employment opportunities are affected by the ethnicity and sex of their potential future coworkers. University students (N = 1,406) were asked to state the lowest hourly wage rate at which they would be willing to accept a job on a campus food truck, where they would work alongside the food truck owner. The ethnicity and sex of the food truck owners were randomized across participants. Results showed no signs of coworker prejudice in terms of the probability of being interested in the job and reservation wage.
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| 6. |
- Ahmed, Ali M., 1977-
(författare)
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Can education affect pro-social behavior? : Cops, economists and humanists in social dilemmas
- 2008
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Ingår i: International Journal of Social Economics. - : Emerald Group Publishing Limited. - 0306-8293 .- 1758-6712. ; 35:4, s. 298-307
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Tidskriftsartikel (refereegranskat)abstract
- Purpose – The purpose of this paper is to examine whether education and training affect pro-social behavior. Economics students are often accused of being less pro-social. The explanations given are that less pro-social people choose to study economics or that economics studies indoctrinate students to selfish behavior. The paper experimentally tests these postulations.Design/methodology/approach – The paper uses the prisoner's dilemma game and stag hunt game to study cooperation across different groups of students.Findings – The experiment supports neither of the postulations: economics students would be indoctrinated or less pro-social people choose to study economics. However, the study shows that police cadets, who go through an education where teamwork and cooperation is promoted, become more cooperative and pro-social after their completed education.Originality/value – In contrast to earlier studies, this paper does not simply study economics students, but also examines if students in educational programs that promote loyalty and cooperation and encourage teamwork are more pro-social than other students.
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| 7. |
- Ahmed, Ali M., 1977-
(författare)
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Decisions under unpredictable losses : An examination of the restated diversification principle
- 2007
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Ingår i: Judgment and Decision Making. - : Society forJudgement and Decision Making. - 1930-2975. ; 2:5, s. 312-316
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Tidskriftsartikel (refereegranskat)abstract
- An experimental test of the descriptive adequacy of the restated diversification principle is presented. The principle postulates that risk-averse utility maximizers will pool risks for their mutual benefit, even if information is missing about the probabilities of losses. It is enough for people to assume that they face equal risks when they pool risks. The results of the experiment support the principle.
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| 8. |
- Ahmed, Ali M., Professor, 1977-, et al.
(författare)
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Diskriminerar kunder utrikes födda företagare? Resultat från ett webb-baserat experiment
- 2018
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Ingår i: Ekonomisk Debatt. - Stockholm, Sweden : Research Institute of Industrial Economics. - 0345-2646. ; 46:7, s. 25-32
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Vi presenterar resultat från ett experiment utfört på ett universitetscampus.Deltagarna fick se bilder av olika food-trucks och svara på om de tyckte det varen god idé att en food-truck etablerade sig på campusområdet samt ange sinbetalningsvilja för olika varor. Deltagarna i experimentet var mer positivatill en etablering av en food-truck ägd av en man med arabiskt namn än till enetablering av en food-truck ägd av en man med svenskt namn. Resultaten är avintresse för integrationspolitiken, då de visar att egenföretagare med ursprung iMellanöstern inte diskrimineras i en bransch där de ofta är verksamma.
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| 9. |
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| 10. |
- Alam, A. B. M. Sarowar, et al.
(författare)
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Population trends and effects of local environmental factors on waterbirds at Tanguar Haor freshwater wetland complex in northeast Bangladesh
- 2023
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Ingår i: Avian Conservation and Ecology. - : Resilience Alliance. - 1712-6568. ; 18:1
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Tidskriftsartikel (refereegranskat)abstract
- Analysis of long-term datasets on bird populations can be used to answer ecological and management questions that are useful for conservation. Tanguar Haor (9500 ha) is one of the major freshwater wetlands in Bangladesh and supports a large number of migratory and resident waterbirds. Because of its unique ecological and economic values, it is arguably the most notable wetland in the floodplains of northeast Bangladesh and in the region. This Ramsar site supports globally important populations of threatened waterbirds, such as the Baer's Pochard Aythya baeri, Common Pochard Aythya ferina, Falcated Duck Mareca falcata, Ferruginous Duck Aythya nyroca, Oriental Darter Anhinga melanogaster, and Black-tailed Godwit Limosa limosa. Considering the international significance of this site, knowledge gaps on waterbird population trends, and key ecological factors, we conducted waterbird census between 2008 and 2021 to identify priority sites for conservation, population trends of resident and migratory waterbirds, and environmental factors that influence their abundances. We recorded a total of 69 species of waterbirds (maximum count of 166,788 individuals in 2013) and assessed population trends of 47 species. Of these, peak counts of 15 species exceeded the 1% threshold of their Asian-Australian Flyway population estimates. Most species (59%) showed a declining trend, including the critically endangered Baer's Pochard and the vulnerable Common Pochard, and 16 species (41%) showed an increasing trend. Based on the abundance and species diversity, we have identified Chotainna beel and Lechuamara beel as conservation priority sites within the Haor complex and discuss key threats to these areas. We also offer evidence that adjusting water-level management to annual rainfall patterns could be a useful intervention for waterbird management. Involving local communities in conservation efforts by creating bird sanctuaries within the Haor complex will strengthen waterbird conservation in the country and along the East Asian-Australian Flyway.
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