scholarly journals A Mathematical Overview of the Monogamous Marriage in a Multiregion Framework: Modelling and Control

2020 ◽  
Vol 2020 ◽  
pp. 1-19
Author(s):  
Mustapha Lhous ◽  
Omar Zakary ◽  
Mostafa Rachik

The main objective of this paper is to develop a new mathematical model to study, analyze, and control the family status in several regions and to discuss the impact of the connectivity of regions and the mobility of residents on the marital status of the family, by adopting a multiregion discrete-time model. The modelling and the control process of the system that describes the case of monogamous marriages in a multiregion framework are considered. Two combined control strategies are proposed, which allow reducing the virgin and divorced individuals and increasing the number of married individuals in a specific region. The first control is considered as the impact of public awareness campaigns to educate virgin men and women about the benefits of marriage for the individual and the society; the second control characterizes the legal procedures, administrative complications, and the heavy financial and social consequences of divorces. The optimal control theory is applied to characterize such optimal strategies and determined numerically using a progressive-regressive discrete scheme to discuss the obtained results.

Author(s):  
Ramona Cantaragiu

Abstract Food waste is one of the main contributors to economic disparities, social inequalities and environmental pollution. Numerous studies have sought to understand the drivers of food waste at various stages in the food supply chain, including the consumption stage. Based on a quantitative analysis of 252 Romanian consumers, the present study shows that gender is an important factor that affects the individuals’ attitudes and behaviours in regard to food and a potential factor that could affect the amount of food wasted. The study found that attitudes towards food waste evolve as individuals age, and that, at each stage, women tend to be more concerned about the negative impact of food waste on social equity or the family budget than men. In addition, women were found to display behaviours in regard to food acquisition and preparation that can result in higher food waste in a larger degree than men, even though the study found no differences in the actual amount of food wasted by the two genders. The results of the study are important because they show the need to adapt the public awareness campaigns on food waste on the particularities of each gender across several age groups.


2018 ◽  
Vol 19 (5) ◽  
pp. 519-536 ◽  
Author(s):  
Shona Minson

This article draws upon research with children whose mothers were imprisoned in England and Wales, to investigate the impacts of maternal imprisonment on dependent children. The research directly engaged with children, in accordance with Article 12 of the UNCRC 1989, and is set within an examination of the differentiated treatment in the family and criminal courts of England and Wales of children facing state initiated separation from a parent. The article explores children’s ‘confounding grief’ and contends that this grief originates from social processes, experienced as a consequence of maternal imprisonment. ‘Secondary prisonization’ is characterized by changes in home and caregiver and the regulation of the mother and child relationship. ‘Secondary stigmatization’ occurs when children are stigmatized by virtue of their relationship with their mother. These harms to children call into question the state’s fulfilment of its duty to protect children under Article 2 of the UNCRC 1989.


2018 ◽  
pp. 1584
Author(s):  
Putu Ari Raditya ◽  
I Gde Ary Wirajaya

To achieve its goals, hotel requires a good planning and control in order to run its implementation in accordance to the policy that has been assigned. Budget is an important element and a centerpiece in the planning and control process. The aim of the current study is to find out whether locus of control can moderate the impact of budgetary participation and budget emphasis on budgetary slack. This study was conducted on 4-star hotels in Kuta district. The sampling method used was saturation. There were 30 hotels used as the sampe with 97 respondents. Questionnaire was used to collect the data. To analyze the data, Moderated Regression Analysis (MRA) testing was applied.The study found that locus of control could strengthen the impact of budgetary participation and budget emphasis on budgetary slack. It can be concluded that the higher the participation given and the budget emphasis from the head moderated by locus of control, the higher the budgetary slack. Keyword: budgetary participation, budget emphasis, locus of control, budgetary slack


Nutrients ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 400 ◽  
Author(s):  
Slavica Zec ◽  
Clara Minto ◽  
Carlo Agostoni ◽  
Carolina Fano ◽  
Honoria Ocagli ◽  
...  

The present research combines real data and parameters found in recent literature that were used to design realistic scenarios demonstrating the potential effects (benefits and costs) of the World Health Organization (WHO)’s risk communication regarding the consumption of processed meat, which was proven to be associated with an increased risk of colorectal cancer (CRC) in an International Agency for Research on Cancer (IARC)/WHO report. The impact of the risk communication of processed meat consumption was simulated using Monte Carlo microsimulation models. The results showed that a 1% reduction in the number of high-level processed meat consumers may lead to a yearly decrease in CRC cases of 406.43 (IC 95%: −243.94, 1056.81), while the more extreme scenario of a 15% reduction may lead to 2086.62 fewer cases (IC 95%: 1426.66, 2746.57). On the other hand, if demand contraction in the processed meat sector resulted in a 0.1% loss in employment, one could expect 27.23 all-cause mortalities attributable to job loss (IC 95%: 16.55, 37.80). This simulation study demonstrates that caution should be taken when implementing public awareness campaigns, particularly when the prevention message is not straightforward.


2000 ◽  
Vol 19 (s-1) ◽  
pp. 37-51 ◽  
Author(s):  
Peter Carey ◽  
Roger Simnett ◽  
George Tanewski

This study investigates voluntary demand for auditing by family businesses, a significant but relatively unexplored segment of the economy. The paper considers demand for both internal and external auditing by using survey data to investigate the impact of firm characteristics linked to the cost vs. benefit of engaging an auditor. Variables examined are firm size, debt, and two agency proxies that measure separation of ownership and control, namely, the proportion of nonfamily management in the firm, and the proportion of nonfamily representation on the board of directors. The paper also considers the association between internal and external auditing. Descriptive results on voluntary demand for auditing by 186 family businesses revealed that internal audit was more prevalent than external audit, and outsourcing was a common method for providing internal audit. Results from logistic regression analyses provide support for the hypothesized impact of the two agency proxies and firm debt on demand for external audit, but do not explain the demand for internal audit. For firms that voluntarily engaged an auditor (internal and/or external audit), the negative and significant correlation between internal and external audit suggest that in the family business environment they are more commonly viewed as substitute rather than complementary responses.


2006 ◽  
Vol 21 (S2) ◽  
pp. s56-s60 ◽  
Author(s):  
Mark E. Keim

AbstractThe potential for domestic or international terrorism involving cyanide has not diminished and in fact may have increased in recent years. This paper discusses cyanide as a terrorist weapon and the current state of readiness for a cyanide attack in the United States. Many of the factors that render cyanide appealing to terrorists are difficult to modify sufficiently to decrease the probability of a cyanide attack. For example, the relative ease with which cyanide can be used as a weapon without special training, its versatile means of delivery to intended victims, and to a large degree, its ready availability cannot be significantly modified through preparedness efforts. On the other hand, the impact of an attack can be mitigated through preparedness measures designed to minimize the physical, psychological, and social consequences of cyanide exposure. Although the nation remains ill-equipped to manage a cyanide disaster, significant progress is being realized in some aspects of preparedness. Hydroxocobalamin—a cyanide antidote that may be appropriate for use in the prehospital setting for presumptive cases of cyanide poisoning—currently is under development for potential introduction in the US. If it becomes available in the US, hydroxocobalamin could enhance the role of the prehospital emergency responder in providing care to victims of a cyanide disaster. Additional progress is required in the areas of ensuring local and regional availability of antidotal treatment and supportive interventions, educating emergency healthcare providers about cyanide poisoning and its management, and raising public awareness of the potential for a cyanide attack and how to respond.


2020 ◽  
Author(s):  
Lauren Caton ◽  
Mina Yuan ◽  
Dexter Louie ◽  
Carlos Gallo ◽  
Karen Abram ◽  
...  

Abstract Background: The US 21st Century Cures Act provided $7.5 billion in grant funding to states and territories for evidence-based responses to the opioid epidemic. Currently, little is known about optimal strategies for sustaining these programs beyond this start-up funding. Methods: Using an inductive, conventional content analysis, we conducted key informant interviews with former and current state leaders (n=16) about barriers/facilitators to sustainment and strategies for sustaining time-limited grants. Results: Financing and reimbursement, service integration, and workforce capacity were the most cited barriers to sustainment. Status in state government structure, public support, and spending flexibility were noted as key facilitators. Effective levers to increase chances for sustainment included strong partnerships with other state agencies, workforce and credentialing changes, and marshalling advocacy through public awareness campaigns.Conclusions: Understanding the strategies that leaders have successfully used to sustain programs in the past can inform how to continue future time-limited, grant-funded initiatives.


2020 ◽  
Author(s):  
Lauren Caton ◽  
Mina Yuan ◽  
Dexter Louie ◽  
Carlos Gallo ◽  
Karen Abram ◽  
...  

Abstract Background: The US 21st Century Cures Act provided $7.5 billion in grant funding to states and territories for evidence-based responses to the opioid epidemic. Currently, little is known about optimal strategies for sustaining these programs beyond this start-up funding.Methods: Using an inductive, conventional content analysis, we conducted key informant interviews with former and current state leaders (n=16) about barriers/facilitators to sustainment and strategies for sustaining time-limited grants.Results: Financing and reimbursement, service integration, and workforce capacity were the most cited barriers to sustainment. Status in state government structure, public support, and spending flexibility were noted as key facilitators. Effective levers to increase chances for sustainment included strong partnerships with other state agencies, workforce and credentialing changes, and marshalling advocacy through public awareness campaigns. Conclusions: Understanding the strategies that leaders have successfully used to sustain programs in the past can inform how to continue future time-limited, grant-funded initiatives.


Refuge ◽  
2001 ◽  
pp. 40-51 ◽  
Author(s):  
Jeff Handmaker ◽  
Jennifer Parsley

The paper looks at South Africa’s complex history and policies of racism, social separation and control and the impact that this has had on the nature of migration and refugee policy. The paper argues that this legacy has resulted in policy and implementation that is highly racialized, coupled with a society expressing growing levels of xenophobia. Some causes and manifestations of xenophobia in South Africa are explored. It further examines how actions of police and civil servants can mirror the sentiments of the general public, further disadvantaging refugees and migrants. The outcomes of the WCAR are discussed with acknowledgment of the positive gains made for refugees and asylum seekers. The implications for implementation are debated in light of the attacks on the USA. In conclusion, a number of recommendations are made including the need for ongoing public awareness strategies, the value of the WCAR Declarations as lobbying tools, a pragmatic and democratic policy process and the need to highlight development concerns in approaches to address these issues.


2021 ◽  
Vol 17 (4) ◽  
pp. 88-102
Author(s):  
Geoffrey Tanakinjal ◽  
Alesia Gugkang ◽  
Haji Rithuan

In response to global calls for environmental awareness, the Malaysian government enforced restrictions on plastic usage in the Malaysian foodservice industry in 2020. Despite the efforts of public awareness campaigns championing the detrimental effects of traditional plastic usage, the impact of measures taken by food traders remains inadequate. The paper seeks to explore the relationship between subjective norms, perceived behavioral control, attitude, and the intention to use biodegradable straws among food traders. Purposive sampling method, the Structural Equation Model (SEM), and Partial Least Squares (PLS) tools were employed. The sample included 270 respondents. The result found a significant correlation between the four variables, i.e., subjective norms, perceived behavioral control, attitude, and intention to use. Hence, results obtained indicate that conscientious consumers have a significant influence on businesses in their quest to reduce their overall impact on the surrounding environment. Consequently, their socially responsible decisions, i.e., initiatives of using biodegradable products, have advocated mindful consumerism and encouraged positive purchasing behaviors. The results predict increasing demands as an outcome of this accumulated synergy, and this in turn provides more opportunities for food traders and their associated counterparts. The contributions of this study extend toward both theoretical and practical knowledge: (a) better understanding of consumer attitude and how it influences purchase intention, and (b) government regulation and enforcement towards environmental awareness and activities associated with global contributions.


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