FEC killed the cut-through switch

Latency penalty in Ethernet links beyond 10Gb/s is due to forward error correction (FEC) blocks. In the worst case a single-hop penalty approaches the latency of an entire cutthrough switch. Latency jitter is also introduced, making latency prediction harder, with large peak to peak variance. These factors stretch the tail of latency distribution in Rackscale systems and Data Centers, which in turn degrades performance of distributed applications. We analyse the underlying mechanisms, calculate lower bounds and propose a different approach that would reduce the penalty, allow control over latency and feedback for application level optimisation.Rudin foundation, Isaac Newton trust, Leverhulme trust, Microsoft researc

High speed adaptive rack-scale fabrics

Rack-scale systems contain thousands of densely packed con- nected components. While a data center may accommodate a fully provisioned network, rack-scale systems demand a more compact and versatile network that would even up within a heavily populated system. Unless the critical path between communicating hosts is made faster, distributed rack-scale applications cannot scale. We present adaptive rack-scale fabrics, an architecture that uses Physical Layer Primitives, coupled with a Closed Ring Control. The resulting fabric uses pre-fetching techniques, but at the physical layer of the interconnect, to optimize performance within strict power-budget limitations.This work was partly funded by Microsoft Research through its PhD Scholarship Programme, the Leverhulme Trust (ECF- 2016-289) and the the Isaac Newton Trus

Analysis of Personal Hygiene and Knowledge with Incident of Scabies on Santri at Al-Ikhwan Boarding School Pekanbaru, 2017

One of the problems faced by students of Al-Ikhwan Islamic Boarding School is personal hygiene, such as skin hygiene, hands, nails, genitalia, feet and clothes. Bad habits in maintaining personal hygiene are one cause of health problems in the form of scabies disease. Scabies is one of the most common skin diseases. This study aimed to determine the analysis of environmental sanitation and personal hygiene with the incident of scabies at Al-Ikhwan boarding school Pekanbaru City. This research used the method of analytical description and cross sectional design. The population in this study were santriwati which amounted to 143 students. The sample in this study were 83 students with the inclusion criteria being students who were willing to become a respondent in class VII until IX. Sampling technique used simple random sampling. Chi Square statistical test results for personal hygiene p = 0.047, POR (95% CI) = 3.010 (1.119-8.098) means that there was a relationship between personal hygiene and the occurrence of scabies at Al-Ikhwan Islamic Boarding School and there was also a relationship between knowledge and scabies at Al-Ikhwan Islamic Boarding School with a value of p = 0.011, POR (95% CI) = 0.254 (0.095-0.681). Suggestion for the management of Islamic boarding school to provide additional lessons and counseling about the pattern of hygienic behavior and personal hygiene to the santri in order to generate a high awareness of good health behavior in preventing transmission of scabies diseases

Kualitas Pelayanan Kesehatan Di Puskesmas Rowosari Kecamatan Tembalang Kota Semarang

Health is one of the most important element of quality of life in national development to realize the whole Indonesian people. Rowosari health center is organization that provides health care for its people. This study aims to find out and get a clear picture about the quality of services provided by Public Health Care of Rowosari. This study used a qualitative descriptive type, to mind than 8 dimension service. The results showed that the quality of health services at the health center Public Health Care of Rowosari District Tembalang less good, it is proved from the result of the interview which showed that dimension tangibes, reliability and empathy has not been going well and inadequate. To improve the service, the health service center in Rowosari have to repair the building and add some seats in the waiting room for the patients. Employee must also provide 3 S (smile, great, greetings) to patients from the beginning of opening service until done

PENYULUHAN PEMBUATAN SPRAY ANTINYAMUK DARI SERAI (Cymbopogon citrates) DI PAKUAN BARU JAMBI

Dengue Fever (DBD) is an endemic disease caused by dengue virus with vector of Aedes aegypty mosquito. The disease is still a major health problem in Indonesia. DBD often occurs in communities with high pollution levels such as dirty and unkempt environments. Lack of knowledge about health problems, especially DBD and most of the behavior of the community does not support the 3M movement (draining, burying and closing) is one of the factors that increase the risk of DBD. The increase in dbd cases in Indonesia makes many manufacturers create mosquito repellent products to tools and drugs that can kill mosquitoes with various types of products and brands. But the products that are widely sold in the market, can be said to be less environmentally friendly and sometimes not good for health. KKN students have a work program in an effort to increase public awareness and understanding of DBD by providing counseling about mosquito repellent plants. The plant chosen is lemongrass leaves because mosquitoes do not like the aroma and leaves are easily obtained around the community so that it can be processed into an anti-mosquito spray product and in addition

Hand Grip Strength: age and gender stratified normative data in a population-based study

Extent: 5p.Background: The North West Adelaide Health Study is a representative longitudinal cohort study of people originally aged 18 years and over. The aim of this study was to describe normative data for hand grip strength in a community-based Australian population. Secondary aims were to investigate the relationship between body mass index (BMI) and hand grip strength, and to compare Australian data with international hand grip strength norms. Methods: The sample was randomly selected and recruited by telephone interview. Overall, 3 206 (81% of those recruited) participants returned to the clinic during the second stage (2004-2006) which specifically focused on the collection of information relating to musculoskeletal conditions. Results: Following the exclusion of 435 participants who had hand pain and/or arthritis, 1366 men and 1312 women participants provided hand grip strength measurement. The study population was relatively young, with 41.5% under 40 years; and their mean BMI was 28.1 kg/m2 (SD 5.5). Higher hand grip strength was weakly related to higher BMI in adults under the age of 30 and over the age of 70, but inversely related to higher BMI between these ages. Australian norms from this sample had amongst the lowest of the hand grip strength of the internationally published norms, except those from underweight populations. Conclusions: This population demonstrated higher BMI and lower grip strength in younger participants than much of the international published, population data. A complete exploration of the relationship between BMI and hand grip strength was not fully explored as there were very few participants with BMI in the underweight range. The age and gender grip strength values are lower in younger adults than those reported in international literature.Nicola M Massy-Westropp, Tiffany K Gill, Anne W Taylor, Richard W Bohannon and Catherine L Hil

Terminology for Achilles tendon related disorders

The terminology of Achilles tendon pathology has become inconsistent and confusing throughout the years. For proper research, assessment and treatment, a uniform and clear terminology is necessary. A new terminology is proposed; the definitions hereof encompass the anatomic location, symptoms, clinical findings and histopathology. It comprises the following definitions: Mid-portion Achilles tendinopathy: a clinical syndrome characterized by a combination of pain, swelling and impaired performance. It includes, but is not limited to, the histopathological diagnosis of tendinosis. Achilles paratendinopathy: an acute or chronic inflammation and/or degeneration of the thin membrane around the Achilles tendon. There are clear distinctions between acute paratendinopathy and chronic paratendinopathy, both in symptoms as in histopathology. Insertional Achilles tendinopathy: located at the insertion of the Achilles tendon onto the calcaneus, bone spurs and calcifications in the tendon proper at the insertion site may exist. Retrocalcaneal bursitis: an inflammation of the bursa in the recess between the anterior inferior side of the Achilles tendon and the posterosuperior aspect of the calcaneus (retrocalcaneal recess). Superficial calcaneal bursitis: inflammation of the bursa located between a calcaneal prominence or the Achilles tendon and the skin. Finally, it is suggested that previous terms as Haglund’s disease; Haglund’s syndrome; Haglund’s deformity; pump bump (calcaneus altus; high prow heels; knobbly heels; cucumber heel), are no longer used

Synergistic effect of static compliance and d-dimers to predict outcome of patients with covid-19-ards: A prospective multicenter study

The synergic combination of D-dimer (as proxy of thrombotic/vascular injury) and static compliance (as proxy of parenchymal injury) in predicting mortality in COVID-19-ARDS has not been systematically evaluated. The objective is to determine whether the combination of elevated D-dimer and low static compliance can predict mortality in patients with COVID-19-ARDS. A “training sample” (March–June 2020) and a “testing sample” (September 2020–January 2021) of adult patients invasively ventilated for COVID-19-ARDS were collected in nine hospitals. D-dimer and compliance in the first 24 h were recorded. Study outcome was all-cause mortality at 28-days. Cutoffs for D-dimer and compliance were identified by receiver operating characteristic curve analysis. Mutually exclusive groups were selected using classification tree analysis with chi-square automatic interaction detection. Time to death in the resulting groups was estimated with Cox regression adjusted for SOFA, sex, age, PaO2/FiO2 ratio, and sample (training/testing). “Training” and “testing” samples amounted to 347 and 296 patients, respectively. Three groups were identified: D-dimer ≤ 1880 ng/mL (LD); D-dimer > 1880 ng/mL and compliance > 41 mL/cmH2O (LD-HC); D-dimer > 1880 ng/mL and compliance ≤ 41 mL/cmH2O (HD-LC). 28-days mortality progressively increased in the three groups (from 24% to 35% and 57% (training) and from 27% to 39% and 60% (testing), respectively; p < 0.01). Adjusted mortality was significantly higher in HD-LC group compared with LD (HR = 0.479, p < 0.001) and HD-HC (HR = 0.542, p < 0.01); no difference was found between LD and HD-HC. In conclusion, combination of high D-dimer and low static compliance identifies a clinical phenotype with high mortality in COVID-19-ARDS