Variability in behavioural response of wintering black ducks to increased energy demands

1985 ◽  
Vol 63 (7) ◽  
pp. 1657-1662 ◽  
Author(s):  
Lynn M. Brodsky ◽  
Patrick J. Weatherhead

We observed black ducks (Anas rubripes) wintering at three sites differing substantially in food quality (energetic value) and quantity to determine what environmental factor(s) influenced changes in behaviour and whether those changes functioned to balance energy demands with supplies. All behaviours other than preening showed some variation in response to environmental factors, with temperature consistently explaining the greatest amount of that variation. However, the ducks' response to cold temperature was not consistent between sites. For example, at colder temperatures, ducks at one site increased foraging, at another site they decreased foraging, and at the third site foraging remained constant. Apparently, one can only predict the specific response of ducks to increased energetic demands, i.e., colder temperatures, by knowing the quality and quantity of food available in addition to the cost of foraging.

1998 ◽  
Vol 76 (6) ◽  
pp. 1091-1097 ◽  
Author(s):  
P J Pekins ◽  
K S Smith ◽  
W W Mautz

Gestation in white-tailed deer (Odocoileus virginianus) of northern regions occurs throughout winter, when foragequantity and quality are limited. Our objective was to measure the energy cost of gestation during winter and spring in order todetermine its impact on energy balance of deer. We used indirect respiration calorimetry to measure the metabolism of 21pregnant deer every 2–4 weeks during gestation (January–May). Fasting metabolic rates (FMR) were used to develop apredictive equation to evaluate temporal energy costs. A measurable increase in metabolism occurred on day 91 of gestation.FMR (kJ/kg body mass (BM)0.75 per day) of pregnant deer rose curvilinearly (FMR = 0.02(days)2 – 3.261(days) + 465.2), with92.2% of the increase occurring in the third trimester; costs were 45% greater in the last trimester for pregnant than fornonpregnant deer. Peak FMR of pregnant deer at 200 days gestation was 617 kJ/kg BM 0.75 per day, 84% above that ofnonpregnant deer (335 kJ/kg BM 0.75 per day). The total energy cost of gestation, in terms of FMR, was 78 004 kJ/kg BM 0.75 per200 days, a 16.4% increase above that of nonpregnant deer. The temporal increase in energy costs was correlated with springgreen-up, indicating important relationships between energy demands, food quality and availability, spring weather, andphysiological adaptations in deer.


2021 ◽  
Vol 10 (4) ◽  
pp. 196
Author(s):  
Julio Manuel de Luis-Ruiz ◽  
Benito Ramiro Salas-Menocal ◽  
Gema Fernández-Maroto ◽  
Rubén Pérez-Álvarez ◽  
Raúl Pereda-García

The quality of human life is linked to the exploitation of mining resources. The Exploitability Index (EI) assesses the actual possibilities to enable a mine according to several factors. The environment is one of the most constraining ones, but its analysis is made in a shallow way. This research is focused on its determination, according to a new preliminary methodology that sets the main components of the environmental impact related to the development of an exploitation of industrial minerals and its weighting according to the Analytic Hierarchy Process (AHP). It is applied to the case of the ophitic outcrops in Cantabria (Spain). Twelve components are proposed and weighted with the AHP and an algorithm that allows for assigning a normalized value for the environmental factor to each deposit. Geographic Information Systems (GISs) are applied, allowing us to map a large number of components of the environmental factors. This provides a much more accurate estimation of the environmental factor, with respect to reality, and improves the traditional methodology in a substantial way. It can be established as a methodology for mining spaces planning, but it is suitable for other contexts, and it raises developing the environmental analysis before selecting the outcrop to be exploited.


BMJ Open ◽  
2017 ◽  
Vol 7 (11) ◽  
pp. e015594 ◽  
Author(s):  
James Mahon ◽  
Carlos Lifschitz ◽  
Thomas Ludwig ◽  
Nikhil Thapar ◽  
Julie Glanville ◽  
...  

ObjectivesTo estimate the cost of functional gastrointestinal disorders (FGIDs) and related signs and symptoms in infants to the third party payer and to parents.Study designTo estimate the cost of illness (COI) of infant FGIDs, a two-stage process was applied: a systematic literature review and a COI calculation. As no pertinent papers were found in the systematic literature review, a ‘de novo’ analysis was performed. For the latter, the potential costs for the third party payer (the National Health Service (NHS) in England) and for parents/carers for the treatment of FGIDs in infants were calculated, by using publicly available data. In constructing the calculation, estimates and assumptions (where necessary) were chosen to provide a lower bound (minimum) of the potential overall cost. In doing so, the interpretation of the calculation is that the true COI can be no lower than that estimated.ResultsOur calculation estimated that the total costs of treating FGIDs in infants in England were at least £72.3 million per year in 2014/2015 of which £49.1 million was NHS expenditure on prescriptions, community care and hospital treatment. Parents incurred £23.2 million in costs through purchase of over the counter remedies.ConclusionsThe total cost presented here is likely to be a significant underestimate as only lower bound estimates were used where applicable, and for example, costs of alternative therapies, inpatient treatments or diagnostic tests, and time off work by parents could not be adequately estimated and were omitted from the calculation. The number and kind of prescribed products and products sold over the counter to treat FGIDs suggest that there are gaps between treatment guidelines, which emphasise parental reassurance and nutritional advice, and their implementation.


2018 ◽  
Vol 2 (2) ◽  
pp. 211-219
Author(s):  
Wenni Syafitri ◽  
Muhamad Sadar ◽  
Eddisyah Putra Pane

SMP IT Madani as one of the schools that apply the concept of islamic in its education practice. SMPIT Madani is a school formed by amil zakat self-supporting institution ummah Riau by using theconcept of free school. SMP IT stands in 2011 with a total of 20 students. Over time, the currentnumber of junior Madani IT students amounted to 75 students. The average students who attendjunior high school IT is the students who come from poor families.SMP IT Madani has received School Operational Assistance (BOS) a few years back. The BOSprogram uses a different approach than Special Assistance for Students (BKM) ie BOS funds are notgiven to poor students but are provided to schools and managed by schools. The mechanism forcalculating BOS funds is based on the number of students in each school. So the goal of this BOScan be achieved is to free the cost of education for poor students or not able and can alleviate forother students so they can get 9 years basic education services.The obligations of schools receiving BOS programs should report the realization of the use of theprogram to the government. Currently schools are having difficulties to make reporting realizationof BOS program to government and foundation. Differences in reporting formats to foundations andgovernments make the school experience serious problems. If it does not sync between reportingbetween the government and the foundation will cause many other questions and problems. Wheninterviewed, the school is very eager for this matter to be resolved immediately.Based on the problems of the partners, it can be concluded the solution of the problem is a reportinginformation system synchronized to the government and the foundation. So that SMP IT Madani nolonger experience obstacles to the reporting of BOS program activities. As a result the name ofUnilak increasingly fragrant in the eyes of society, especially SMP IT Madani.Method of implementation of activities used is direct observation to the location of partners toperform the first phase, this stage includes data collection and data processing. When this stage takesplace, we will get an overview of the Information Technology environment, and the partner's needfor the BOS program reporting mechanism. After the first phase is done, it will be held the secondphase of socialization, this stage to do the sosiasisasi about the benefits of synchronizing BOSreporting to the government and the foundation. Then in the third stage, the authors do the designand implementation of BOS reporting system based on information obtained from the foundation.Finally, the training phase: Each partner school sends its representative two people, to attend trainingon the use of reporting system that can synchronize BOS and foundation reporting.


Author(s):  
Paula J Dalley

Despite the ubiquity of agents in the modern world, agency law does not have a coherent explanation or unified theory. The Restatement (Third) of Agency updates and attempts to explain the law, but its explanations are limited in scope and at times unpersuasive. Like other contemporary commentary on agency law, the Third Restatement draws from contract and tort theory, an approach which ignores the unique features of agency law. Agency law enables principals to act through agents; it also ensures that principals using agents do not thereby escape liability or other consequences of their choices. This paper develops a theory to fit agency law. The "costbenefit internalization theory" is based on the simple premise that the principal, who has chosen to conduct her business through an agent, must bear the foreseeable consequences of that choice. Conversely, as the bearer of the risks, the principal is entitled to receive the benefits created by the agency relationship. The cost-benefit internalization theory explains and illuminates virtually all agency law doctrine.


2020 ◽  
Author(s):  
Alexander Behnke ◽  
Diana Armbruster ◽  
Anja Strobel

Safeguarding the rights of minorities is crucial for just societies. However, there are conceivable situations were minority rights might seriously impede the rights of the majority. Favoring the minority in such cases constitutes a violation of utilitarian principles. To investigate the emotional, cognitive, and punitive responses of observers of such utilitarian rule transgressions, we conducted an online study with 1004 participants. Two moral scenarios (vaccine policy and epidemic) were rephrased in the third-party perspective. In both scenarios the protagonist opted against the utilitarian option which resulted in more fatalities in total, but avoided harm to a minority. The scenarios varied in whether the minority would have been harmed accidentally or deliberate. The majority of participants chose not to punish the scenarios’ protagonists at all. However, 30.5% judged that protecting the minority over the interests of the majority when only accidental harm would have occurred (vaccine policy) was worthy of punishment. In comparison, only 11.5% opted to punish a protagonist whose decision avoided deliberate harm to a minority at the cost of the majority (epidemic). Emotional responses and appropriateness ratings paralleled these results. Furthermore, complex personality × situation interactions revealed the influence of personality features, i.e., psychopathy, empathy, altruism, authoritarianism, need for cognition and faith in intuition, on participants’ responses. The results further underscore the need to consider the interaction of situational features and inter-individual differences in moral decisions and sense of justice.


2012 ◽  
Vol 30 (1) ◽  
pp. 103-122
Author(s):  
Richard J. Cebula ◽  
Maggie Foley

Abstract This study empirically investigates three hypotheses. The first is that higher levels of economic freedom in an economy promote a higher growth rate of economic activity and hence yield a higher growth rate of per capita real GDP in that economy. The second hypothesis is that higher quality government regulation leads to a more efficient economic system, in large part by interfering less with market functioning and in part by not adding unnecessarily to the cost of conducting business in the marketplace, and thereby leads to a higher per capita real GDP growth rate. The third hypothesis is that the higher the taxation level/burden relative to GDP in an economy, the lower the growth rate of private sector spending and hence the lower the growth rate of per capita real GDP in that economy. Using a panel dataset for OECD nations over the 2003 through 2006 period, fixed effects PLS estimations find compelling evidence in support of all three of these hypotheses.


2014 ◽  
Vol 933 ◽  
pp. 874-878
Author(s):  
Yun Rui Wang

Inventory is an important link in supply chain, according to characteristics and objectives of inventory control, the reasonable safety inventory, order point, the highest inventory and inventory strategy were determined based on historical sales data. Using Witness simulation software, the optimal strategy was selected from nine inventory strategies by running simulation model for one year. If goods shortage was allowing, the seventh schemes (72000,158100) was better ,the minimum total cost was 888158 yuan ; considering allowing a small amount of shortage, the cost of eighth schemes ( 82000,158100) was least of 1095167; the third scenarios (92000,138100) was selected if without shortage, and the minimum total cost was 1254909 yuan. This shows, the application of computer simulation to assist in the management of inventory is scientific and feasible, it can help enterprises to save the order and operation cost.


Author(s):  
Stuart Sime

Alternative dispute resolution (ADR), particularly mediation, plays a key role in reducing the costs of civil disputes by fomenting the early settlement of cases. This chapter discusses ADR processes; advantages or disadvantages of ADR and litigation; the cost of ADR; reference to ADR; and court involvement in ADR. Adjudicative ADR results in the third party neutral deciding the dispute or difference between the parties. Non-adjudicative ADR processes involve moving the parties towards reaching a compromise agreement between themselves. Rules of court require parties to consider using ADR. Sanctions may be imposed on parties who act unreasonably.


1958 ◽  
Vol 38 (1) ◽  
pp. 61-64 ◽  
Author(s):  
S. B. Slen ◽  
E. C. Banky

A total of 1,457 clean fleece weights, representing 7 years of production and adjusted for certain environmental factors, were used in this study. The data were analysed to determine the relationship of clean fleece weight to age in the Rambouillet, Romnelet, and Canadian Corriedale breeds of range sheep maintained under Western Canadian conditions.In general, maximum fleece weight was attained by the second year of production and was maintained until the end of the fourth year in all breeds. At that time a significant (p <.01) decline occurred which continued until the end of the seventh year. Among the Rambouillet and Romnelet ewes which were born and raised as singles, a small additional increase in average fleece weight occurred in the third year. Ewes born and raised as singles tended to produce more wool than twins but the differences were significant (p <.01) only in the Romnelet shearlings. The data suggest that in twins maximum production occurred at a slightly earlier age and that the subsequent decline began sooner than in singles.


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