Shift scheduling for tank trucks

In this paper we deal with shift scheduling of tank trucks for a small oil company. Given are a set of tank trucks with different characteristics and a set of drivers with different skills. The objective is to assign a feasible driver to every shift of the tank trucks such that legal and safety restrictions are satisfied, the total working times of the drivers are within desired intervals, requested vacation of the drivers is respected and the trucks are assigned to more favored drivers. We propose a two-phase solution algorithm which is based on a mixed integer linear programming formulation and an improvement procedure. Computational results are reported showing that the algorithm is able to generate feasible schedules in a small amount of time.     

一种简单多功能单片机系统设计

本文介绍一种电路简单，具有多功能的实用单片机系统．     

智能多点温度调节仪的研制

介绍了一种智能多点温度调节仪的设计方法 ,给出了仪器的硬件总体组成框图以及输入 /输出通道、通信电路的组成框图 ,并介绍了实际应用中所采用的抗干扰措施     

How to Deal With Moral Tales: Constructions and Strategies of Single‐Parent Families

This study explored how normative understandings based on the nuclear family ideology are linked to constructions of single‐parent families and sheds light on the strategies single parents and their children adopt in dealing with negative accounts. Guided by social constructionist and configurational approaches, the in‐depth analysis is based on an Austrian qualitative study, comprising interviews with 50 ten‐year‐old children and their 71 parents, living in nuclear, reconstituted, and single‐parent families. The results showed that single‐parent families are constructed predominantly in terms of deficits and disadvantages, with the nuclear family serving as an ideological code along the dimensions of normalcy, complementarity, and stability. To deal with negative accounts, single parents and their children use three basic types of strategy: (a) imitation, (b) compensation, and (c) delimitation.     

Correlates of Women's Adjustment During the Separation and Divorce Process

This study sought to clarify those factors related to successful adjustment at different times during the divorce process. A longitudinal research design was used to study three diverse sam- ples of women in the process of adaptation. Certain variables previ- ously found to predict adjustment, such as the woman's a e and the f presence of children, were not significantly associated wit the mul- tiple indicators of adjustment used in this study. Sex role attitudes, social isolation, and inter-spouse acrimony emerged as stronger cor- relates of adjustment. The predictive power of several variables changed over time, emphasizing the importance of controlling the length of separation for a given sample.     

When the Spirit Blooms: Acquiring Higher Education in the Context of Welfare Reform

ABSTRACT

Established within a political context greatly influenced by stereotypical assumptions of impoverished women of color, welfare reform codified a work-first philosophy meant to attack perceived “dependency” and spur “self-sufficiency.” This article describes the shortcomings of the work-first approach and highlights the importance of higher education for helping women, and especially women of color, achieve economic well-being. It then reports key findings from a study that examines the impact of higher education on the lives of welfare participants in California. Utilizing a mix of surveys, focus groups, and personal interviews, this study finds that despite the challenges associated with balancing parenthood, college-level coursework, and the bureaucratic demands of welfare reform, the stereotypical notions of the “welfare queen” do not apply. Instead, study participants exhibited a high level of ambition, persistence, determination, and hard work in pursuit of their educational ambitions; and in the process, improved their lives and the lives of their children.     

Welfare to Work in the United Kingdom

Summary

Increasing employment and reducing child poverty are two central goals of current government welfare reform policy in the UK, and single parentswith their relatively low employment rates and relatively high poverty ratesare one of the key target groups for both. This article outlines welfare reform policies in the UK with particular reference to single parents, and discusses the impact of these. In doing so, it highlights some key differences compared with the US.     

START: single‐to‐double arm transition design for phase II clinical trials

Phase II clinical trials designed for evaluating a drug's treatment effect can be either single‐arm or double‐arm. A single‐arm design tests the null hypothesis that the response rate of a new drug is lower than a fixed threshold, whereas a double‐arm scheme takes a more objective comparison of the response rate between the new treatment and the standard of care through randomization. Although the randomized design is the gold standard for efficacy assessment, various situations may arise where a single‐arm pilot study prior to a randomized trial is necessary. To combine the single‐ and double‐arm phases and pool the information together for better decision making, we propose a Single‐To‐double ARm Transition design (START) with switching hypotheses tests, where the first stage compares the new drug's response rate with a minimum required level and imposes a continuation criterion, and the second stage utilizes randomization to determine the treatment's superiority. We develop a software package in R to calibrate the frequentist error rates and perform simulation studies to assess the trial characteristics. Finally, a metastatic pancreatic cancer trial is used for illustrating the decision rules under the proposed START design.     

降低单强变异系数 提高转杯纱质量的工艺探讨

单强变异系数是转杯纱评等的一项重要指标,可以通过调整一些工艺参数来降低转杯纱单强变异系数,从而提高转杯纱质量。     

“Unexpected and Distressing”: Understanding and Improving the Experience of Transferring Palliative Care Inpatients to Residential Care

The survival of patients with advanced cancer, coupled with the increased presence of end-stage chronic illnesses in an aging population, is leading to a demand in palliative care. Due to the ongoing need for acute-pain and symptom control in hospice/palliative care units, few are able to offer long-stay admission for those whose symptoms have stabilized. When a patient no longer requires specialist palliative care services, transfer from an inpatient palliative care facility may then be necessary. A core component of the role of palliative-care social workers involves working with patients and their families/carers when the care pathway shifts and the option of residential aged care facility (RACF) needs to be considered. This research explored several issues, including the impact of this transition on the patient and their families and on the interdisciplinary health care team treating the patient. An investigation was undertaken to identify concerns and barriers regarding the transition from hospice care to RACF and opportunities were highlighted to improve clinical practice in this area. A tripartite approach was adopted conducting face-to-face interviews with patients, their families/carers, and health care professionals. Members of the interdisciplinary team were interviewed and social workers working in similar inpatient palliative-care facilities undertook telephone interviews to gauge their experiences. A thematic analysis discerned a number of themes highlighting the impact of this transition on key stakeholders and incorporated recommendations to improve or best manage this process. The research has highlighted the difficulties that patients/families encounter in this transition, as well as the emphases of protecting the integrity of the patient and family. This is achieved by holding open and ongoing dialogue, particularly through family meetings and working in collaboration with the patient, the family, and the team. Understanding the experience and impact of this transition on key stakeholders is helpful in building up a knowledge base and to ensure a more effective relationship occurs. This research incorporated the voices of terminally ill patients, families, and members of the health care team in order to understand their views and recommendations for best managing the transition from a hospice/inpatient palliative-care facility to a RACF. This enables their input to have some real impetus in clinical practice and service delivery.