We revisit classical sieves for computing primes and analyze their performance in the external-memory model. Most prior sieves are analyzed in the RAM model, where the focus is on minimizing both the total number of operations and the size of the working set. The hope is that if the working set fits in RAM, then the sieve will have good I/O performance, though such an outcome is by no means gua...

Since the Covid-19 pandemic that hit Surabaya City certainly affects economic changes in City. Clearly seen from purchasing power parity and merchant income salary working hour. This impact to sale purchase of goods service causes income. study discusses factors influence during Covid 19 2020. purpose is look at capabilities economy producer side. took location Pucang Market, with concern incom...

Although distinctions between full-time and part-time work are vital for understanding inequalities at home, consensus critical reflection lacking in how employment status should be defined. Full-time often represented as a binary split those working under or over specific number of hours. However, this paper, using exploratory mixed methods, evidences problems with assumptions based on working...

In the linked analysis article, Purcell Jackson and Ta rpley describe their concern that surgical trainees in the United States might be forced to work within a maximum 80 hour week.1 Meanwhile, the European Working Time Directive (EWTD) demands that all trainee doctors in Europe work an average of only 48 hours a week,2 and the Royal College of Surgeons of England is appealing for all their tr...

The delayed delivery of the AIRBUS A380© demonstrates the challenges to be faced in the field of cross-company collaboration today. On the one hand, available CWE platforms are used insufficiently. On the other hand, they do not yet support collaboration in a completely adequate way. This paper illustrates the current state of CWE practice by way of a sample company, its internal and external c...

BACKGROUND Shift work has been identified as a risk factor for several cancer sites in recent years, with melatonin as a potential intermediate on the proposed causal pathway. This study examined the influence of nighttime light exposure on melatonin levels among 123 rotating shift nurses. METHODS Nurses working a rotating shift schedule (two 12-hour days, two 12-hour nights, and five days of...

introduction: gloves protect the dental healthcare worker from direct contact with microorganisms in the patient's mouth and on dental setting surfaces; they also protect the patient from potential pathogens on the hands of the clinicians. this study was performed to evaluate the permeability of three types of examination latex gloves after treatment of patients in pediatric department of mashh...