Lighting, well-being and work performance: A review of the literature

Commissioned White Paper Report for Philips International

Ground Systems Development Environment (GSDE) interface requirements and prototyping plan

This report describes the data collection and requirements analysis effort of the Ground System Development Environment (GSDE) Interface Requirements study. It identifies potential problems in the interfaces among applications and processors in the heterogeneous systems that comprises the GSDE. It describes possible strategies for addressing those problems. It also identifies areas for further research and prototyping to demonstrate the capabilities and feasibility of those strategies and defines a plan for building the necessary software prototypes

Refractive errors in presbyopic patients in Kano, Nigeria

Background: The study is a retrospective review of the pattern of refractive errors in presbyopic patients seen in the eye clinic from January to December, 2009.Patients and Methods: The clinic refraction register was used to retrieve the case folders of all patients refracted during the review period. Information extracted includes patient’s age, sex, and types of refractive error. Unaidedand pin hole visual acuity was done with Snellen’s or “E” Charts and near vision with Jaeger’s chart in English or Hausa. All patients had basic eye examination and streak retinoscopy at two third meter working distance. The final subjective refractive correction given to the patients was used to categorize the type of refractive error.Results: There were 5893 patients, 1584 had refractive error and 644 were presbyopic. There were 289 males and 355 females (M:F= 1:1.2). Presbyopia accounted for 10.9% of clinic attendance and 40% of patients with refractive error. Presbyopia was seen in 17%, the remaining 83% required distance correction; astigmatism was seen in 41%, hypermetropia 29%, myopia 9% and aphakia 4%. Refractive error was commoner in females than males and the relationship was statistically significant (P-value = 0.017; P < 0.05 considered significant).Conclusion: Presbyopia is common and most of the patients had other refractive errors. Full refraction is advised for all patients.Keywords: Presbyopia, pattern, correctio

Lecturers’ Compliance with Quality Assurance Mechanisms in Public Universities in Delta State

The study investigated the extent to which lecturers’ complied with quality assurance mechanisms in public universities in Delta State. Two objectives, two research questions and two hypotheses guided the study. The descriptive survey research design was adopted. The population of the study consisted of 1,299 lecturers and 6,826 students from the public universities in Delta State. A sample of 260 lecturers and 409 students representing 20% and 6% respectively, of the population was obtained using the proportionate random sampling technique. The instrument used for data collection was a researchers’ made questionnaire titled “Compliance with Quality Assurance Mechanisms Questionnaire (CQAMQ). The Cronbach Alpha method was used to determine the internal consistency of the items and it yielded a result of 0.76 and 0.97 for A and B respectively. The researchers and two assistants distributed 669 copies of the questionnaire and successfully collected 628 copies of the questionnaire administered. The research questions were analyzed using the mean, standard deviation and rank order statistics, while the hypotheses were tested using z-test at 0.05 level of significance. It was found that lecturers in public universities in Delta State complied with measurement and evaluation of students learning outcome and the use of interactive teaching and learning method in the classroom to a high extent. The findings revealed that lecturers’ compliance with measurement and evaluation of students learning outcomes in public universities in Delta State is high. Based on the findings, it was concluded that lecturers complied with the quality assurance mechanisms to a high extent, it was therefore recommended that the university management should formulate a policy that will make lecturers sustain the strategy of assessing the learning outcome ofstudents and organize more lectures and seminars on how lecturers can sustain the strategies in the use of interactive teaching and learning methods in the classroom

Ground Systems Development Environment (GSDE) interface requirements analysis

A set of procedural and functional requirements are presented for the interface between software development environments and software integration and test systems used for space station ground systems software. The requirements focus on the need for centralized configuration management of software as it is transitioned from development to formal, target based testing. This concludes the GSDE Interface Requirements study. A summary is presented of findings concerning the interface itself, possible interface and prototyping directions for further study, and results of the investigation of the Cronus distributed applications environment

Academic Records Management Systems (ARMS) and Students\u27 Academic Records Maintenance in Nigerian Universities

Librarians organize information resources of all kind for easy access and retrieval; organizational records are one of such information resources that librarians organize for quick access and easy retrieval when needed by the organizations. Academic records being vital information resources that determines the future of students and the efficient workability of academic institutions like universities and other schools are to be well managed and organized so as not to get them mutilated, destroyed or missing. These academic records which include course registration, results, transcript and the likes are supposed to be well managed as they contain delicate information concerning the daily transactions of students and lecturers in the institution and they also contain evidence of academic performances of the trainees. In this 21st century universities in Nigeria are expected to be able to grow beyond managing such delicate and important records manually with the use of papers, files and cabinet to managing the records with the use of academic records management system software (ARMS) that is specially configured with the relevant and requisite modules to manage and organize academic records. Whereas a lot of universities in Nigeria are yet to upgrade to using some of these software to manage their academic records, it is pertinent for this paper to be able to expose some of such ways that these very important records can be properly and efficiently managed. This style of managing student academic records are important in order to guard against natural and artificial disasters like flood, fire, humidity, dust, mutilation, lost etc. when these records are managed with the use of the academic records management system (ARMS) it goes a long way to ensuring safety and easy access of the students academic records. So this paper presents Concepts of ARMS, Students’ academic records, Types of records management systems (RMS), elements and feature of a efficient RMS, ARMS procedure, Advantages and perceived problems of using ARMS, Application of ARMS in maintenance of students academic record

The acute and chronic implications of the COVID-19 virus on the cardiovascular system in adults: A systematic review

Despite coronavirus disease 2019 (COVID-19) primarily being identified as a respiratory illness, some patients who seemingly recovered from initial infection, developed chronic multi-system complications such as cardiovascular (CV), pulmonary and neurological issues leading to multiple organ injuries. However, to date, there is a dearth of understanding of the acute and chronic implications of a COVID-19 infection on the CV system in adults. A systematic review of the literature was conducted according to PRISMA guidelines and prospectively registered via Prospero (ID: CRD42022360444). The MEDLINE Ovid, Cochrane Library and PubMed databases were searched from inception to August 2022. The search strategy keywords and MeSH terms used included: 1) COVID; 2) coronavirus; 3) long COVID; 4) cardiovascular; and 5) cardiovascular disease. Reference lists of all relevant systematic reviews identified were searched for additional studies. A total of 11,332 records were retrieved from database searches, of which 310 records were duplicates. A further 9887 were eliminated following screening of titles and abstracts. After full-text screening of 1135 articles, 9 manuscripts were included for review. The evidence of CV implications post-COVID-19 infection is clear, and this must be addressed with appropriate management strategies that recognise the acute and chronic nature of cardiac injury in COVID-19 patients. Efficacious management strategies will be needed to address long standing issues and morbidity

NOW: Orchestrating services in a nomadic network using a dedicated workflow language

AbstractOrchestrating services in nomadic or mobile ad hoc networks is not without a challenge, since these environments are built upon volatile connections. Services residing on mobile devices are exposed to (temporary) network failures, which must be considered the rule rather than the exception. This paper proposes a dedicated workflow language built on top of an ambient-oriented programming language that supports dynamic service discovery and communication primitives resilient to network failures. The proposed workflow language, NOW, has support for high level workflow abstractions for control flow, rich network and service failure detection, and failure handling through compensating actions, and dynamic data flow between the services in the environment. By adding this extra layer of abstraction, the application programmer is offered a flexible way to develop applications for nomadic networks