scholarly journals Costly learning: preference for familiar food persists despite negative impact on survival

2016 ◽  
Vol 12 (7) ◽  
pp. 20160256 ◽  
Author(s):  
Thaiany M. Costa ◽  
Eileen A. Hebets ◽  
Diogo Melo ◽  
Rodrigo H. Willemart

Animals often rely on events in their environment that provide information (i.e. experience) to alter their future decision-making in ways that are presumed to be beneficial. Such experience-based learning, however, does not always lead to adaptive decision-making. In this study, we use the omnivorous harvestman Heteromitobates discolor to explore the role of past diet on subsequent food choice and survival. We first tested whether a short-term homogeneous diet (rotten crickets, fresh crickets or dog food) influenced subsequent food choice (rotten cricket versus fresh cricket). We next examine the impact of diet on survival. We found that following experience with a homogeneous cricket diet, adult harvestmen displayed a learned preference for familiar food, regardless of whether it was rotten or fresh crickets; individuals experiencing dog food were equally likely to choose rotten versus fresh crickets. We additionally found that individuals that ate rotten crickets suffered shorter survival than those that ate fresh crickets. Together, our results suggest that the diet an individual experiences can lead to maladaptive food preferences—preferences that ultimately result in reduced longevity.

Paradigm ◽  
2017 ◽  
Vol 21 (1) ◽  
pp. 75-90
Author(s):  
Shivendra Singh ◽  
Atul Dhyani

Family is one entity that has complex variables underplaying the consumption decisions, and marketers must understand how couples behave in concert to resolve conflict across major decisions. In this study, the family aspects are investigated to shed more light on spouse attitude towards family decision-making for selection of car and school/college for their ward and assess the impact of attitudinal factor on decision satisfaction. The drop-off/pick-up method was used to collect the data from Northern India. The result reveals that spousal attitude is formed by marital power, assertiveness, subtle manipulation, love, bargaining and being submissive. Results of multiple regression analysis show that subtle manipulation is most and marital power has a negative impact on spouses’ decision satisfaction. Thus, when targeting a family for a significant trades assay, the salesperson should focus on both husband and wife and stimulate a conversation between them to appeal to their conjoint kinship.


Kybernetes ◽  
2016 ◽  
Vol 45 (3) ◽  
pp. 536-551 ◽  
Author(s):  
Seyed Hossein Razavi Hajiagha ◽  
Shide Sadat Hashemi ◽  
Hannan Amoozad Mahdiraji

Purpose – Data envelopment analysis (DEA) is a non-parametric model that is developed for evaluating the relative efficiency of a set of homogeneous decision-making units that each unit transforms multiple inputs into multiple outputs. However, usually the decision-making units are not completely similar. The purpose of this paper is to propose an algorithm for DEA applications when considered DMUs are non-homogeneous. Design/methodology/approach – To reach this aim, an algorithm is designed to mitigate the impact of heterogeneity on efficiency evaluation. Using fuzzy C-means algorithm, a fuzzy clustering is obtained for DMUs based on their inputs and outputs. Then, the fuzzy C-means based DEA approach is used for finding the efficiency of DMUs in different clusters. Finally, the different efficiencies of each DMU are aggregated based on the membership values of DMUs in clusters. Findings – Heterogeneity causes some positive impact on some DMUs while it has negative impact on other ones. The proposed method mitigates this undesirable impact and a different distribution of efficiency score is obtained that neglects this unintended impacts. Research limitations/implications – The proposed method can be applied in DEA applications with a large number of DMUs in different situations, where some of them enjoyed the good environmental conditions, while others suffered from bad conditions. Therefore, a better assessment of real performance can be obtained. Originality/value – The paper proposed a hybrid algorithm combination of fuzzy C-means clustering method with classic DEA models for the first time.


2019 ◽  
Vol 12 (2) ◽  
pp. 231-248
Author(s):  
Sartaj Chaudhary ◽  
Ajoy Kumar Dey

Purpose Materialism has become a topic of increasing interest to researchers and policymakers because it can influence consumer behavior. However, a clear picture of how this phenomenon impacts consumers has proven to be elusive. Using an integrated framework, this paper aims to derive hypotheses from theoretical concepts of materialism and consumer decision-making styles and uses a survey of 1,216 respondents in India to test the hypotheses. Design/methodology/approach The present study is the first of its kind to test the impact of materialist values on consumer decision-making styles among a sample of 13-18 years old school children. The constructs are validated through a first- and second-order confirmatory factor analysis and an integrated second-order structural model is developed. Findings This study finds that materialism is a positive predictor of “recreation/ hedonistic”,; “confused by over-choice”; “brand consciousness”; “perfectionistic high-quality consciousness”; and “habitual brand loyal” style of consumers. Further, materialism has a negative impact on “price value consciousness” of consumers. These findings have important implications for theory and practice. Research limitations/implications This study is restricted to school children in the National Capital Region and hence cannot be generalized to the whole young population in India. Originality/value Conceptualizing both materialism and consumer decision-making styles as second-order constructs, this is a maiden study that examines the impact of materialistic values on the consumer decision-making styles of young consumers.


2020 ◽  
Vol 14 (Supplement_1) ◽  
pp. S474-S475
Author(s):  
A J Williams ◽  
Y Leung ◽  
K O’Connor ◽  
V Huang

Abstract Background A lack of IBD-specific reproductive knowledge has been associated with increased ‘voluntary childlessness’.Furthermore, a lack of patient and clinician knowledge may contribute to inappropriate medication changes during or after pregnancy that may lead to a flare of disease. Evidence exists for the benefit of decision aids to support decision-making in pregnancy in general, as well as in multiple other chronic disease; however, such a resource for pregnancy in IBD has not been identified. Methods Using International Patient Decision Aids Standards, we have commenced design of our Pregnancy in IBD Decision Aid (PIDA). A steering committee consisting of Canadian and Australian Healthcare professionals with an interest in IBD management in pregnancy, in addition to a patient representative was established. Initial patient and clinician focus groups were conducted. Themes prospectively chosen for discussion included inheritance, fertility, nutrition, medications, mode of delivery, breastfeeding, infant infections and vaccinations. We designed an electronic PIDA draft that incorporates individualised information (for example, type of IBD, pre-conception or pregnant, surgical history and current medications) in personalised decision-making. Further patient focus groups and interviews were conducted to obtain user opinion of the PIDA draft. Results In July 2017, patient and clinician focus groups were conducted at a Canadian site. Patient concerns regarding pregnancy included the impact of disease, previous surgical history on fertility, preterm delivery; the potential impact of current and past drug therapies on the fetus/ infant; and the negative impact of active disease on both maternal and fetal/infant health. Clinician concerns included the absence of pre-conception counselling and potential for lack of patient understanding about the impact of disease activity and IBD medication use in pregnancy. Patient feedback (n = 15) obtained through interviews at two Canadian and one Australian site regarding the current electronic PIDA draft was predominantly positive, with comments pertaining to the adequacy of content coverage, personalisation, readability and unbiased information presentation. Suggestions were made for inclusion of further content such as the impact of IBD on sexual function, expected laboratory changes and the timing of recommencement of medications post-partum. Conclusion The completion of pre and post-PIDA design focus groups and interviews affirmed the role for PIDA. Main decisions that were considered necessary to address included ideal timing of conception pending disease activity, management of medications and delivery methods. Ongoing user feedback is being obtained at Australian and Canadian sites currently.


2019 ◽  
Vol 36 (1) ◽  
pp. 119-130
Author(s):  
Van Thac Dang ◽  
Wilson V.T. Dang

Purpose The purpose of this paper is to use multi-criteria decision-making methods to assess environmental quality of the Organization for Economic Co-operation and Development (OECD) countries. Design/methodology/approach Weights of criteria are determined by means of entropy weight method. VIKOR method is used to rank different OECD countries based on their environmental quality. Findings The results show the best and the worst environmental quality of different OECD countries. The top five countries of environmental quality are Spain, Israel, Belgium, Japan and the USA. These countries have the best quality of environment. By contrast, the worst five countries of environmental quality are Iceland, Australia, New Zealand, Canada and Chile. Originality/value The findings have implications regarding environmental quality. The results suggest that governments should engage in policy-making that improves their environmental quality. Specifically, those having poor quality of environment should protect the environment and reduce the negative impact on environment. For example, reduce emission of CO2 to lessen the impact of climate change, improve the quality of air and water, reduce waste generation, increase biodiversity and enhance forest resources. Improvement of environmental quality will improve our social and economic life as well as health conditions.


Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 512
Author(s):  
Łukasz Marzantowicz

The article is a contribution to the discussion on the possibilities of effective logistic decisions under the conditions of uncertainty. Variable and unpredictable factors, which create the conditions of uncertainty, not only directly affect logistic processes (positive or negative impact), but can also be a determinant of making decisions. Logistics management, because it is referred to in the context of decision-making, is currently defined by the quality of management decisions taken, including factors which often constitute only partially quantifiable sets. The main goal of the article is to show the strength of the dependence between the occurrence of uncertainty factors and the type of decision. On the basis of decision-making theory, the types of decisions were defined, and then a set of factors that are most important for a given type of decision was selected. The results of the analysis allowed the strength of the influence of uncertainty factors on making logistics decisions to be determined. On this basis, a catalog of key decisions was selected, including decision types, and also the effects of decisions taken under uncertainty were determined. The study and the results of the analysis should be treated rather as a voice in the ongoing discussion. Due to the unpredictability of some uncertainty factors, the research field in the discussed problem remains open.


2017 ◽  
Vol 1 (S1) ◽  
pp. 71-71
Author(s):  
Sarah Ronis ◽  
Kurt Stange ◽  
Lawrence Kleinman

OBJECTIVES/SPECIFIC AIMS: (1) To propose an iterative decision-making model of care planning for CSHCN. (2) To identify targets warranting measurement in future studies of SDM in care planning for CSHCN. METHODS/STUDY POPULATION: Conceptual model developed by a multidisciplinary team iteratively considering the complex relationships among diverse factors affecting care planning for CSHCN, informed by clinical and implementation science experience and a scoping literature review of medical and cognitive sciences literature addressing interpersonal decision-making, communication, negotiation, and trust among children, their parents, and their clinicians. RESULTS/ANTICIPATED RESULTS: Decision-making interventions in pediatrics tend to focus narrowly on single acute decisions, providing minimal guidance for decisions related to chronic disease management over time. Few models account for the role of the child in the decision-making process, despite their ongoing development. Therefore, we propose a model of shared decision-making in the context of managing chronic illness in children that recognizes all actors and can support both the design of clinical care and research. This model—The SDM Learning Loop Model—highlights the dynamic iterative nature of exchanges between and among the clinical team and the parent-child dyad and recognizes the child as the center of each decision-making cycle. The model accounts for key practice, family, experiential, and emotional contexts influencing the decision-making encounter. In this model, change in child health status and developmental capacity resulting from a given cycle’s care plan will directly influence the relationship between clinician and parent-child dyad (eg, mutual trust, attunement) and impact each party’s engagement in the next round of decision-making. The relationship between experience and outcome stimulates learning. DISCUSSION/SIGNIFICANCE OF IMPACT: Our proposed SDM Learning Loop Model suggests that increasing the shared nature of decision making is not only likely to optimize care planning, but creates “buy-in” that can both reinforce the impact of positive outcomes, and moderate the negative impact on relationships when the outcome is other than desired. We hypothesize that this model can guide care planning and shape research to the benefit of both clinical outcomes and clinician-family relationships. Future work should focus on the development and validation of measures to account for the experiential and emotional contexts in which such decisions are made, and the outcomes of care in this population.


2021 ◽  
Vol 8 ◽  
pp. 237437352110460
Author(s):  
Carri S. Polick ◽  
Jennifer W. Applebaum ◽  
Caitlin Hanna ◽  
Darnysus Jackson ◽  
Sophia Tsaras-Schumacher ◽  
...  

Hospital-based protocols to support pet care needs for hospitalized patients may have potential to benefit patient health and wellbeing, but must be informed by experiences of hospitalized pet owners. The aim of this study was to determine the scope and need for pet care services among hospitalized patients. A panel of prior inpatients and their family members at a tertiary care center were surveyed about preferences, experiences, and need for assistance with pet care during hospitalization. Respondents (n = 113) expressed interest in a low/no-cost pet-boarding or foster program for adult patients struggling to find pet care assistance. The majority of respondents (n = 71; 63%) reported challenges securing pet care during a prior hospitalization, and/or knew someone who encountered similar challenges. Respondents also indicated that these challenges had a negative impact on health, recovery, or their own decision to receive medical care. Pet care challenges during hospitalization are likely common and have the potential to hamper medical decision-making and health outcomes of inpatients.


2020 ◽  
Vol 5 (3) ◽  
pp. 269-284
Author(s):  
A. Celil ÇAKICI ◽  
Erşan YILDIZ

The best method to maintain a healthy life is healthy food choice. As for the healthy food choice itself, it is related to placing value on health. The aim of the study is to determine the impact of health value on healthy food choice in restaurant customers. The data were gathered through a questionnaire, which was developed based on the literature review. The questionnaire was conducted on 01.05-31.07.2018 on restaurant customers between the ages of 20-69, who lived in Kayseri, and dined out at least once a year. Quota sampling was employed in the implementation of the survey on the basis of towns and age groups. A total of 1286 surveys were analysed via factor, regression and variance analysis, as well as single sample t-test. Health value had a positive impact on healthy food choice among the underweight participants (β: 0,339), the participants with normal weight (β: 0,143), the overweight participants (β:-0,684), and the participants with the 1st degree of obesity (β: 0,152) while it had a negative impact on healthy food choice among the participants with the 2nd degree of obesity (β: 0,162). As for the participants with the 3rd degree of obesity, health value was found out to have no impact on healthy food choice.


2020 ◽  
Vol 33 (Supplement_1) ◽  
Author(s):  
K Momose ◽  
O Shiraishi ◽  
Y Hiraki ◽  
H Kato ◽  
M Iwama ◽  
...  

Abstract   Clinical diagnosis of lymph node metastasis has a great significance particularly in cT1 or cT2 esophageal cancer patients, since their clinical “N” diagnosis determines the treatment strategy according to the Esophageal cancer practice guidelines 2017 edited by the Japan Esophageal Society. Then clinically node-negative but pathologically node-positive status could potentially have negative impact on survival outcome. The purpose of this study is to see the impact of clinical node diagnosis. Methods Esophageal squamous cell carcinoma patients diagnosed as cT1N0 or cT2N0 who underwent radical esophagectomy from 2003 to 2017 were enrolled retrospectively. Clinically node-positive was defined as any of the followings; 1) 10 mm or more longest diameter, 2) 8 mm or more longest diameter and round or irregular shaped, 3) 5 mm or more longest diameter and FDG uptake on PET-CT scan. Survival curves with Kaplan–Meier method were plotted by the pathological N stage and examined by the log rank test. Results Totally 203 patients were enrolled in this study. There were 159(78%)/36(18%)/8(4%)/0(0%) pN0/pN1/pN2/pN3 patients, respectively. There was no significant survival difference between pN0 and pN1 patients (p = 0.9). But pN2 patients had worse survival than pN0 patients (p = 0.0037). Conclusion There was no negative survival impact of two or less clinically negative but pathologically positive nodes. This might suggest that clinical node diagnosis should be assessed carefully enough in order to have as less number of clinically negative but pathologically positive nodes as possible. Further investigation is needed for those having three or more clinically negative but pathologically positive nodes.


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