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排序方式: 共有163条查询结果,搜索用时 15 毫秒
1.
Assembly lines are usually constructed as the last stage of the entire production system and efficiency of an assembly line is one of the most important factors which affect the performance of a complex production system. The main purpose of this paper is to mathematically formulate and to provide an insight for modelling the parallel two-sided assembly line balancing problem, where two or more two-sided assembly lines are constructed in parallel to each other. We also propose a new genetic algorithm (GA)-based approach in alternatively to the existing only solution approach in the literature, which is a tabu search algorithm. To the best of our knowledge, this is the first formal presentation of the problem as well as the proposed algorithm is the first attempt to solve the problem with a GA-based approach in the literature. The proposed approach is illustrated with an example to explain the procedures of the algorithm. Test problems are solved and promising results are obtained. Statistical tests are designed to analyse the advantage of line parallelisation in two-sided assembly lines through obtained test results. The response of the overall system to the changes in the cycle times of the parallel lines is also analysed through test problems for the first time in the literature. 相似文献
2.
Qiang Sun Bai Jiang Hongtu Zhu Joseph G. Ibrahim 《Scandinavian Journal of Statistics》2019,46(1):314-328
In this paper, we propose the hard thresholding regression (HTR) for estimating high‐dimensional sparse linear regression models. HTR uses a two‐stage convex algorithm to approximate the ?0‐penalized regression: The first stage calculates a coarse initial estimator, and the second stage identifies the oracle estimator by borrowing information from the first one. Theoretically, the HTR estimator achieves the strong oracle property over a wide range of regularization parameters. Numerical examples and a real data example lend further support to our proposed methodology. 相似文献
3.
Challenges of implementing restorative justice for intimate partner violence: An Islamic perspective
Md. Jahirul Islam Masahiro Suzuki Nurunnahar Mazumder Nada Ibrahim 《Journal of Religion & Spirituality in Social Work》2018,37(3):277-301
ABSTRACTIntimate partner violence (IPV) is currently recognized as a critical public health concern and a human rights issue. Not surprisingly, Muslims – a religiously and socio-culturally diverse faith-based populace – are not an exception. To address this complex area of criminal justice and social policy, some scholars advocate implementing restorative justice (RJ) approaches. While RJ approaches have been traditionally used in Islamic cultures for conflict resolutions, to date, few studies have investigated how RJ operates in dealing with IPV in Muslim countries and communities. This article explores how RJ approaches towards IPV operate in some Muslim countries/communities, and offers insights into developing culturally and religiously appropriate ways of implementing RJ in IPV situations among Muslims. Given the prevalence of IPV among Muslims, the question is particularly important and timely. Taking exclusively limited examples of RJ approaches that have been used to mediate IPV cases in Muslim countries and communities, this paper found one significant challenge in the RJ approaches among Muslims: community acceptance of IPV. To reduce IPV in Muslim society, it is necessary to develop treatment models and techniques that meet cultural and religious needs. This paper found that since RJ is not alien to Islamic teachings, RJ approaches can be implemented effectively in dealing with IPV among Muslims by ensuring justice and equity of the abused woman. The findings of this paper will assist policymakers, practitioners, and service providers in providing religiously and culturally appropriate care when addressing IPV issues among Muslims. 相似文献
4.
Soner Coban Omer Gokhan Doluoglu Ibrahim Keles Hakan Demirci Ali Riza Turkoglu Muhammet Guzelsoy 《The aging male》2016,19(2):124-127
Objectives: To investigate the predictive values of free prostate-specific antigen (fPSA), total PSA (tPSA) and age on the prostate volume.Methods: The data of 2148 patients with lower urinary tract symptoms were analyzed retrospectively. The patients who had transrectal ultrasonography guided 10 core biopsies owing to the findings obtained on digital rectal examination and presence of high PSA levels (PSA?=?2.5–10?ng/dl), and proven to have BPH histopathologically were included in the study. Age, tPSA, fPSA and the prostate volumes (PV) of the patients were noted.Results: One thousand patients that fulfilled the inclusion criteria were included in the study. The PV of the patients were significantly correlated with age, tPSA and fPSA (p?0.001 and r?=?0.307, p?0.001 and r?=?0.382, p?0.001 and r?=?0.296, respectively). On linear regression model, fPSA was found as a stronger predictive for PV (AUC?=?0.75, p?0.001) when compared to age (AUC?=?0.64, p?0.001), and tPSA (AUC?=?0.69, p?=?0.013).Conclusions: Although tPSA is an important prognostic factor for predicting PV, the predictive value of fPSA is higher. PV can easily be predicted by using age, and serum tPSA and fPSA levels. 相似文献
5.
Control‐based imputation for sensitivity analyses in informative censoring for recurrent event data
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Fei Gao Guanghan F. Liu Donglin Zeng Lei Xu Bridget Lin Guoqing Diao Gregory Golm Joseph F. Heyse Joseph G. Ibrahim 《Pharmaceutical statistics》2017,16(6):424-432
In clinical trials, missing data commonly arise through nonadherence to the randomized treatment or to study procedure. For trials in which recurrent event endpoints are of interests, conventional analyses using the proportional intensity model or the count model assume that the data are missing at random, which cannot be tested using the observed data alone. Thus, sensitivity analyses are recommended. We implement the control‐based multiple imputation as sensitivity analyses for the recurrent event data. We model the recurrent event using a piecewise exponential proportional intensity model with frailty and sample the parameters from the posterior distribution. We impute the number of events after dropped out and correct the variance estimation using a bootstrap procedure. We apply the method to an application of sitagliptin study. 相似文献
6.
P. L. Rika Fatimah A. A. Jemain K. Ibrahim S. Mohammad Nasir M. A. Khairul Anuar 《Social indicators research》2009,92(1):131-149
Determining priority importance is a matter of concerns among the organization to improve their performance. One of the important
aspects that should be considered by the organization is management of human resources, comprising of members who have their
own family life. In this paper, we deliver a new perspective for organization to provide priority importance for their members
with respect to family matters in order to inculcate the sense of belonging in the organization. To be effective in considering
family matters in the organizational policy making, closer look of family characteristics are required. The idea of translating
several family characteristics as quality variables and applying the quality function deployment (QFD) method to these variables
could present a new way of improving the decision making in the organization by considering the process of decision in the
family. Quality function deployment for family (QFDF) produces a friendly interpretation of a highly complex and intangible
matters around family life; thus, making the assessment of a family easier. QFD is applied on the data gathered from a questionnaire
survey based on 1,213 families in West Malaysia, Malaysia. Twelve variables are identified as voice of family, where seven
of them are found to have the highest priority of importance. These variables could also be translated into quality variables
in the context of organization, the strategy of improvement for the family could be interpreted as strategy for improvement
in the organization. Furthermore, the results of this study provide suggestion to improve actions for managing human resource.
In the discussion, three most high ranked variables from both perspectives of family and organization are considered. 相似文献
7.
Bringing together women and family in quality perspective bring about interesting discussions in this paper. By integrating
previous studies and considering expert opinions, we determinate the variables and dimensions with respect to women’s existence
regarding their roles both in the family and at work. Many activities carried out by women represent the consumer aspects
of their role. Women undertake these activities to fulfill their needs, which can be classified in the order of preference
using Maslow’s Hierarchy of Need. Women success can be measured based on their ability to perform their roles successfully.
We identify women’s performance by using quality approach of Personal Quality Maintenance (PQM), which is widely applied in
many organizations in order to maintain the service delivery, which meets the customer satisfaction. The effort to enhance
women’s satisfaction for their success in playing the multirole in the family and at work is our main consideration. This
study may contribute a new point of view regarding for the women’s welfare and existence. 相似文献
8.
Yasmin Ibrahim 《Social Identities》2018,24(3):364-379
This paper examines the re-aestheticisation of hunger and poverty with the emergence of austerity blogs. These blogs, which chronicle personal narratives while re-directing gaze in creating food through limited budgets and in sharing the intimate brutalities of hunger, bring a renewed focus and interest to poverty through daily lived experiences of hunger. Beyond personalising hunger in a climate of austerity, blogs as a symbol of articulation of the laypeople for the general public become interstitial spaces between government rhetoric and media representations, making poverty an intimate, personal and present proposition. Blogs as peoples’ archives of social history are hybrid spaces of personal iterations amenable to public consumption and media scrutiny. In the process these can re-mediate and disrupt the social reality of first-world hunger, inviting a gaze through first-hand narratives. Poverty becomes a contested entity online where blogs perform both resistance and reiteration of the neo-liberal stereotypes about the unemployed and those on benefits. 相似文献
9.
10.
Bukari Chei Aning-Agyei Millicent Abigail Kyeremeh Christian Essilfie Gloria Amuquandoh Kofi Fosu Owusu Anthony Akwesi Otoo Isaac Christopher Bukari Kpanja Ibrahim 《Social indicators research》2022,159(3):991-1015
Social Indicators Research - Following the outbreak of COVID-19 and its heavy toll on the global community and humanity, a fierce debate on the pandemic and Sustainable Development Goals (SDGs)... 相似文献