scholarly journals Trade-off Investment between Tonic Immobility and Mate Search in the Sweetpotato Weevil, Cylas formicarius (Coleoptera: Brentidae)

Insects ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 774
Author(s):  
Haoyong Ouyang ◽  
Pengxiang Wu ◽  
Runzhi Zhang ◽  
Muhammad Haseeb
Keyword(s):  
Tonic Immobility ◽  
Cost Benefit ◽  
Trade Off ◽  
Sweetpotato Weevil ◽  
Cylas Formicarius ◽  
Mate Search ◽  
Virgin Male ◽  
Male Mate ◽  
The Cost ◽  
The Relationship

Tonic immobility (TI) is a well-known anti-predator strategy adopted by diverse preys. Numerous studies on the cost–benefit involve in TI have been reported. Although, some studies have reported the effect of mating behavior on TI, few studies highlight the phases of mate search. In the present study, we investigated the relationship between mate search and TI behavior in the sweetpotato weevil (SPW), Cylas formicarius (Coleoptera: Brentidae). First, we found the most active mate search period of male SPW within 24 h. Then, we measured whether the duration of TI of virgin male and female were affected during the mate search. In the end, the Y-tube olfactometer was used to compare the duration of mate search and the proportion of orientation towards the females in two artificial selection groups of the male SPW with longer and shorter duration of TI. Our study confirmed that male mate searching increase after 3 h at night, and up to 73% at midnight, TI was affected by mate search in male, because the duration of TI of the male during mate search (Mean ± SE = 214.53 ± 22.74 s) was significantly shorter duration than the control (679.64 ± 69.77 s). However, mate search did not affect the strength of TI in the females tested. This study determined that mate search was affected by TI due to males from the group with shorter duration of TI who had 28% higher proportion of orientation towards the females than the males with longer duration of TI. Investment trade-off between TI and mate search was confirmed in the males of the SPW.

Drug costs and treatment choices: a DTB symposium

1993 ◽  
Vol 31 (11) ◽  
pp. 41-44
Keyword(s):  
Cost Benefit Analysis ◽  
Health Benefit ◽  
Cost Benefit ◽  
Drug Costs ◽  
Benefit Analysis ◽  
Treatment Choices ◽  
The Subject ◽  
The Cost ◽  
The Relationship ◽  
Service Managers

The relationship between drug costs and treatment choices was the subject of the first annual Drug and Therapeutics Bulletin symposium held in March 1993.* In a time of severe financial constraints for the NHS it is important that the money available is well spent. In the case of treatment that means the benefits must be worth the cost. There is, however, no agreed way of deciding when a particular health benefit to an individual is worth the cost to the NHS. Drug prices are easier to measure and more consistent than the prices of other treatments, and may be more amenable to cost-benefit analysis. Treatment choices are made primarily by doctors but with critical input from patients, pharmacists, nurses and health service managers. In this article we give an overview of the symposium at which speakers described ways in which drug costs and treatment choices were tackled in general practice (Ann McPherson, John Howie), in hospital (Dorothy Anderson), in clinical research and audit (Iain Chalmers, Alison Frater), by consumers (Anna Bradley), by health economists (Mike Drummond) and by government (Joe Collier). We also take into account points raised in discussion by the participants.

New Model to Promote Well-Being in Work Areas of an Aerospace Industry Facility in Mexicali

2022 ◽  
pp. 150-172
Author(s):  
Carlos Raul Navarro Gonzalez ◽  
Juan Ceballos-Corral ◽  
Olivia Yessenia Vargas-Bernal ◽  
Gustavo Lopez Badilla ◽  
Judith M. Paz-Delgadillo
Keyword(s):  
Working Conditions ◽  
Aerospace Industry ◽  
Cost Benefit ◽  
Well Being ◽  
Industrial Operations ◽  
The Cost ◽  
Relationship Of ◽  
The Relationship ◽  
The City ◽  
Health And Well Being

This investigation was made to evaluate the health and well-being of workers who made activities in the manufacturing processes of an aerospace industry installed in the city of Mexicali and based on the evidence presented in certain stages of a production line. The cost-benefit of applying ergonomic methods was analyzed, developing a descriptive model, which involved important aspects. Said aspects analyzed were (1) work methods, (2) training of employees in the operational area, (3) evaluation of times and movements of industrial operations, and (4) working conditions as the relationship of workers with supervisors and managers.

scholarly journals Brain size is correlated with endangerment status in mammals

2016 ◽  
Vol 283 (1825) ◽  
pp. 20152772 ◽  
Author(s):  
Eric S. Abelson
Keyword(s):  
Brain Size ◽  
Extinction Risk ◽  
Small Body ◽  
Cost Benefit ◽  
Metabolic Cost ◽  
Trade Offs ◽  
Extant Species ◽  
Body Sizes ◽  
The Cost ◽  
The Relationship

Increases in relative encephalization (RE), brain size after controlling for body size, comes at a great metabolic cost and is correlated with a host of cognitive traits, from the ability to count objects to higher rates of innovation. Despite many studies examining the implications and trade-offs accompanying increased RE, the relationship between mammalian extinction risk and RE is unknown. I examine whether mammals with larger levels of RE are more or less likely to be at risk of endangerment than less-encephalized species. I find that extant species with large levels of encephalization are at greater risk of endangerment, with this effect being strongest in species with small body sizes. These results suggest that RE could be a valuable asset in estimating extinction vulnerability. Additionally, these findings suggest that the cost–benefit trade-off of RE is different in large-bodied species when compared with small-bodied species.

scholarly journals Understanding and Encouraging Online Reviewing With a Selection-Based Review System

2019 ◽  
Vol 31 (5) ◽  
pp. 446-464
Author(s):  
Rowanne Fleck ◽  
Benjamin R Cowan ◽  
Eirini Darmanin ◽  
Yixin Wang
Keyword(s):  
Cost Benefit ◽  
Online Reviews ◽  
Review System ◽  
Personal View ◽  
Trade Off ◽  
Consumer Reviews ◽  
Online Consumer Reviews ◽  
Mobile Interface ◽  
Online Consumer ◽  
The Cost

Abstract Online consumer reviews are important for people wishing to make purchases online. However, not everyone contributes online reviews. This paper looks at consumer motivations of reviewing and rating behaviour in order to motivate the design of a mobile interface for online reviewing. An interview study found that people tend to contribute reviews and ratings based on their perception of whether they would be helpful or not to others as well as their own personal view of the usefulness of reviews and ratings when buying products. There also seems to be a cost-benefit trade-off that influences people’s decisions to review and rate: people tend to make a decision based on the perceived value of that review or rating to the community against the effort and costs of contributing. A mobile interface was designed that was intended both to reduce the cost of leaving reviews and to increase the perception of the usefulness of the reviews to others. An initial evaluation of this reviewing interface suggests that it could encourage more people to leave reviews.

Science and Policy Analysis in the U.S. Office of Information and Regulatory Affairs

2015 ◽  
Vol 50 (2) ◽  
pp. 161-185 ◽  
Author(s):  
Beryl A. Radin
Keyword(s):  
Policy Analysis ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Political Conflict ◽  
Science And Policy ◽  
White House ◽  
Regulatory Affairs ◽  
Analysis Technique ◽  
The Cost ◽  
The Relationship

This article focuses on one expression of the relationship between science and policy analysis: the Office of Information and Regulatory Affairs (OIRA) in the Office of Management and Budget. It has used a classic policy analysis technique—cost–benefit analysis—as the way that the White House will review regulations. This discussion highlights the utilization of the cost–benefit method in the OIRA decision-making process, the roles of various actors in the system, and the response to that use by various policy actors. It illustrates the difficulty of utilizing rational analytical methods in an environment of political conflict.

AN EVALUATION OF A CONFIGURABLE VLIW MICROARCHITECTURE FOR EMBEDDED DSP APPLICATIONS

2004 ◽  
Vol 13 (06) ◽  
pp. 1321-1345
Author(s):  
WANLI LIU ◽  
DAVID H. ALBONESI ◽  
JOHN GOSTOMSKI ◽  
LLOYD PALUM ◽  
DAVE HINTERBERGER ◽  
...  
Keyword(s):  
Cost Benefit ◽  
Memory Systems ◽  
Cost Performance ◽  
Processor Performance ◽  
Embedded Dsp ◽  
Power Models ◽  
The Cost ◽  
The Relationship ◽  
Improve Cost ◽  
Dsp Applications

The last decade has witnessed a significant increase in processor offerings geared towards embedded DSP applications. Such processors are commonly VLIW architectures with special ISA and/or microarchitecture features for speeding up signal processing functions and customization options to improve cost/performance. The Jazz Programmable System Architecture from Improv Systems is one such processor offering. Jazz employs a VLIW architecture which is well-suited to the characteristics of embedded DSP applications such as voice over packet, media processing, and home connectivity. The microarchitecture incorporates overlaid datapaths, distributed register file and memory systems, code compression, and parallel computation and memory access. Jazz permits design-time configuration in an attempt to bridge the gap between the flexibility of a programmable processor and the cost-benefit of full customization. In this paper, we explore the cost/performance tradeoffs of the Jazz microarchitecture on various embedded multimedia applications using a detailed cycle-level simulator as well as area and power models. Through a comparison of the performance, power, and area of different hardware configurations running these applications, we demonstrate how the configurability of the architecture affords a cost-performance benefit over a fixed microarchitecture. Key features of the microarchitecture are quantitatively evaluated in terms of their influence on performance. The relationship between compiler optimizations and processor performance is also explored.

scholarly journals The Goldilocks effect: female geladas in mid-sized groups have higher fitness

2021 ◽  
Vol 288 (1952) ◽  
pp. 20210820
Author(s):  
Elizabeth Tinsley Johnson ◽  
Jacob A. Feder ◽  
Thore J. Bergman ◽  
Amy Lu ◽  
Noah Snyder-Mackler ◽  
...  
Keyword(s):  
Group Size ◽  
Reproductive Performance ◽  
Demographic Data ◽  
Group Living ◽  
Cost Benefit ◽  
Individual Fitness ◽  
Cost Benefit Ratio ◽  
Reproductive Rates ◽  
The Cost ◽  
The Relationship

The cost–benefit ratio of group living is thought to vary with group size: individuals in ‘optimally sized’ groups should have higher fitness than individuals in groups that are either too large or too small. However, the relationship between group size and individual fitness has been difficult to establish for long-lived species where the number of groups studied is typically quite low. Here, we present evidence for optimal group size that maximizes female fitness in a population of geladas ( Theropithecus gelada ). Drawing on 14 years of demographic data, we found that females in small groups experienced the highest death rates, while females in mid-sized groups exhibited the highest reproductive performance. This group size effect on female reproductive performance was largely explained by variation in infant mortality (and, in particular, by infanticide from immigrant males) but not by variation in reproductive rates. Taken together, females in mid-sized groups are projected to attain optimal fitness due to conspecific infanticide and, potentially, predation. Our findings provide insight into how and why group size shapes fitness in long-lived species.

Economic Costs Associated with Bariatric Surgery Complications

2018 ◽  
Author(s):  
Eric S. Bour
Keyword(s):  
Bariatric Surgery ◽  
Staple Line ◽  
Surgical Complication ◽  
Cost Benefit ◽  
Surgery Complications ◽  
Economic Costs ◽  
Staple Line Leak ◽  
Bariatric Surgery Complications ◽  
The Cost ◽  
The Relationship

Surgical complications in bariatric procedures occur despite all efforts to minimize their incidence. This chapter examines the costs and expenses associated with four complications: bleeding, stricture, staple-line leak, and internal hernia. In addition, it defines the relationship between the expense of techniques designed to reduce the incidence of complications and the cost of caring for the patient who sustains a complication. Last, it explores the medicolegal and financial implications of any surgical complication in the changing healthcare landscape of the future. Through a better understanding these issues, surgeons should be able to tailor their practice by determining the cost/benefit and “value” of interventions used to prevent or treat complications.

Exploring the Culture of Surveillance: A Qualitative Study in Portugal

2021 ◽  
Vol 10 (1) ◽  
pp. 79-95
Author(s):  
Délcio Faustino ◽  
Maria João Simões
Keyword(s):  
Qualitative Study ◽  
Detailed Analysis ◽  
Social Inequalities ◽  
Cost Benefit ◽  
Theoretical Framework ◽  
Surveillance Culture ◽  
Trade Off ◽  
Trade Offs ◽  
The Cost ◽  
Subjective Meanings

By following the theoretical framework of the surveillance culture this article aims to detail the surveillance imaginaries and practices that individuals have, capturing differences and social inequalities among respondents. We present an in-depth look into surveillance awareness, exploring subjective meanings and the varying awareness regarding commercial, governmental, and lateral surveillance. Furthermore, a detailed analysis is made on how individuals sometimes welcome surveillance, expanding on the cost-benefit trade-off, and detailing it on three distinct trade-offs: the privacy vs. commercial gains/rewards, the privacy vs. convenience and, the privacy vs. security. Lastly, we present a section that explores and analyzes resistance to surveillance.

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