نتایج جستجو برای: m14
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Consumers respond positively to products tied to charity, particularly from sellers that are relatively new and hence have limited alternative means for assuring quality. We establish this result using data from a diverse group of eBay sellers who “experiment” with charity by varying the presence of a donation in a set of otherwise matched product listings. Most of charity’s benefits accrue to ...
Background and Aims: The rate of urinary tract infection caused by the extended-spectrum-β-lactamase- (ESBL) producing Escherichia coli (E. coli) is increasing worldwide. This study aimed to assess the frequency of blaCTX-M genes in the E. coli isolated from urinary tract infection (UTI) in outpatients. Methods: 240 E. coli bacteria were isolated from the outpatients’ urine samples in the Kerma...
سن گندم، eurygaster integriceps puton (hemi.: scutelleridae) مهم ترین آفت مزارع گندم و جو در خاورمیانه است.این حشره در ایران نیز به عنوان یک آفت کلیدی، خسارت قابل ملاحظه ای به محصول گندم و جو وارد می کند. سم پاشی هایی که علیه این آفت صورت می گیرد نه تنها باعث آلودگی محیط زیست شده بلکه موجب آلودگی مواد غذایی نیز می شود. بنابراین استفاده از قارچ های بیمارگر حشرات در مدیریت آفت می تواند موجب کاهش ...
1 Ioannidis JPA. Clinical trials: what a waste. BMJ 2014;349:g7089. (10 December.) 2 LeFevre ML. Screening for vitamin D deficiency in adults: US Preventive Services Task Force recommendation statement. Ann Intern Med 2014; published online 25 Nov, doi:10. 7326/M14-2450. 3 Fortmann SP, Burda BU, Senger CA, Lin JS, Beil TL, O’Connor E, et al. Vitamin, mineral, and multivitamin supplements for th...
Bounded rationality prevents humans from tracing all action plans that could, in principle, be imagined. In the present paper, individuals' partly socially-shaped cognitive frames explain which action plans do gain attention. This provides the basis for a new entrepreneurial theory of the firm where `business conceptions,' which underlie any entrepreneurial venture, play a key role. Coordinatio...
We examine whether firms pursue target board structures. Using a broad panel from 1991–2003, we find that board changes are frequent, with two-thirds of firms changing board size or independence during a two-year period. Board changes are associated with changes in firm-specific fundamentals. The rate of change is positively associated with the benefits of effective boards and negatively associ...
a stochastic frontier cost function indicates that the annual cost of complying with the anti-redlining Community Reinvestment Act (CRA) is $171,000 per thrift institution, roughly 2.3 percent of variable costs. But compliance cost is significantly less than the estimated 21 percent cost inefficiency. Based on published estimates of the incremental number of mortgage loans induced by CRA, the m...
In this paper, we introduce a new measure of personal ethics in the form of marital cheating to examine the relationship between personal ethics and corporate misconduct. Firms with CEOs and CFOs who use a marital infidelity website are more than twice as likely to engage in two forms of corporate misconduct. The relationship is not explained by a wide range of regional, firm, and executive cha...
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