Reliable Integrated Satellite Terrestrial Communications using MIMO for Mitigation of Microwave Absorption by Earths Oxygen

Microwaves are used to communicate with satellite and terrestrial communication networks. But as microwaves pass through the Earth’s atmosphere, the oxygen gas absorbs microwave. In this 5G era, when the whole world is moving towards high data-rates and reliable communications, this absorption affects the data transmission in Integrated Satellite/Terrestrial Communication (ISTC) systems, which leads to degradation of the system performance. The multiple-input-multiple-output (MIMO) technology has become a boon for modern wireless communication systems to achieve the necessities of higher data-rates and communication reliability. The paper analyses the MIMO effect on block error rate (BLER), error vector magnitude (EVM) and throughput performance of the data transmission with different MIMO configurations. The paper establishes that better data-rates as well as reliable data communication is achieved with higher order MIMO configurations. MIMO 8×1 provides 5, 20 and 42.5 times improved performance to BLER; 5.26%, 25% and 81.82% in throughput; and 10.34%, 23.07% and 28% in EVM calculations as comparable to MIMO 4×1, MIMO 2×1 and SISO 1×1, respectively at 15 dB signal-to-noise ratio (SNR). The authors also give a new concept of multi-cellular layers based mobile communication network, useful for future smart cities

A study of outcome of neuroparalytic snake bite patients treated with fixed dose of antisnake venom

Background: Dhule district in Maharashtra (India) has snake bite as a common medical emergency. There are 168 villages in Dhule district and its majority of the population is engaged in farming and snakebite is a major occupational hazard particularly during the harvesting season. The available data on the epidemiology of snake bite from the here is sparse. Poisonous and nonpoisonous snake bites accounts approximately 30 admissions per month which increase to 35-40 admissions in rainy season in Civil Hospital. Methods: Fifty patients with severe neuroparalytic snake envenomation, resulting in acute type II respiratory failure, admitted to medical ICU for mechanical ventilation during one year period, were studied. Ventilatory requirements, amount of antisnake venom (ASV) infused, period of neurological recovery and hospital survival were evaluated. Results: 60% of patients affected were in the age group of 21-40 years. Maximum numbers of bites were during April to September (84%). All patients had severe manifestations such as ptosis, ophthalmoplegia, neck muscle weakness, limb and respiratory muscle weakness. 200 ml ASV was administered to all, along with atropine and neostigmine. Mechanical ventilation was required for a median duration of 26.60 hours. All victims in the study group survived with complete neurological recovery except one mortality for a patient who had suffered irreversible hypoxic cerebral injury prior to arrival in hospital and needed ventilatory support for 9.58 days. Conclusions: Timely institution of ventilatory support and fixed dose of 200 ml of ASV along with anticholinesterase treatment was sufficient to reverse neuroparalysis in severe elapid bites.

Youssef’s syndrome following caesarean section: a rare case with review of literature

Youssef’s syndrome is a rare condition characterized by vesicouterine fistula with cyclic haematuria, amenorrhoea and incontinence of urine. A vesicouterine fistula is an abnormal connection between the uterus and bladder that most commonly occur due to inadvertent injury to the bladder during lower segment caesarean section. Vesicouterine fistula leads to psychological and has the negative impact on quality of life. A high suspicion should be kept in mind if the patient presents with urinary incontinence even many years after caesarean section. However, conservative management may be appropriate in some cases, but the definitive mode of management is surgery. Hereby authors present a 22-year-old para 2 live 2 (previous 2 caesarean section) with vesicouterine fistula with the complaint of urinary incontinence, cyclical haematuria (menouria) and amenorrhoea a year after caesarean section done due to obstructed labour.

A study of spectrum and fetomaternal outcome of Jaundice in pregnant women: an experience from a tertiary referral centre of North India

Background: Pregnancy in jaundice is an important Medical disorder, commonly seen in developing countries like India. The objective of the study was to evaluate the causes leading to jaundice in pregnancy and to analyse the feto-maternal outcome in patients of jaundice in pregnancy.Methods: This was a prospective observational study of antenatal cases with jaundice admitted in the Department of Obstetrics and Gynecology, King Georges Medical University, Lucknow over a period of one year after getting approval of ethical clearance. Total 122 cases were enrolled after informed consent.Results: Total of 122 cases were enrolled, Incidence of jaundice in pregnancy was 1.2%. Majority of patients were of age group 20-25 years 48.4%. About 69.7% presented at gestational age of 29-40 weeks. Most common cause was pre-eclampsia 33.6%, followed by cholestasis 23.75% and hepatitis 17.2%. Amongst hepatitis, most common was hepatitis B in 26.7%. Out of 122 cases, 59.8% delivered while 50.2% were undelivered 52.4% patients improved and were discharged while 47.6% patients expired. Vaginal deliveries were 56.1%, abdominal deliveries were 43.9%, and main reason for maternal mortality was hepatic encephalopathy in 64.6%. Mortality was higher in patients with total bilirubin > 10mg%. Perinatal mortality was 37%.Conclusions: Pregnancy complicated with jaundice carries very poor maternal and fetal outcome. Poor outcome may be attributed to delay in seeking medical advice, lack of awareness, lack of proper antenatal checkups 100% ANC booking can help in reducing fetomaternal morbidity and mortality

Effect of workplace physical activity interventions on the cardio-metabolic health of working adults: systematic review and meta-analysis.

BACKGROUND: Adults in urban areas spend almost 77% of their waking time being inactive at workplaces, which leaves little time for physical activity. The aim of this systematic review and meta-analysis was to synthesize evidence for the effect of workplace physical activity interventions on the cardio-metabolic health markers (body weight, waist circumference, body mass index (BMI), blood pressure, lipids and blood glucose) among working adults. METHODS: All experimental studies up to March 2018, reporting cardio-metabolic worksite intervention outcomes among adult employees were identified from PUBMED, EMBASE, COCHRANE CENTRAL, CINAHL and PsycINFO. The Cochrane Risk of Bias tool was used to assess bias in studies. All studies were assessed qualitatively and meta-analysis was done where possible. Forest plots were generated for pooled estimates of each study outcome. RESULTS: A total of 33 studies met the eligibility criteria and 24 were included in the meta-analysis. Multi-component workplace interventions significantly reduced body weight (16 studies; mean diff: - 2.61 kg, 95% CI: - 3.89 to - 1.33) BMI (19 studies, mean diff: - 0.42 kg/m2, 95% CI: - 0.69 to - 0.15) and waist circumference (13 studies; mean diff: - 1.92 cm, 95% CI: - 3.25 to - 0.60). Reduction in blood pressure, lipids and blood glucose was not statistically significant. CONCLUSIONS: Workplace interventions significantly reduced body weight, BMI and waist circumference. Non-significant results for biochemical markers could be due to them being secondary outcomes in most studies. Intervention acceptability and adherence, follow-up duration and exploring non-RCT designs are factors that need attention in future research. Prospero registration number: CRD42018094436

Summary of the Activities of the Working Group I on High Energy and Collider Physics

This is a summary of the projects undertaken by the Working Group I on High Energy Collider Physics at the Eighth Workshop on High Energy Physics Phenomenology (WHEPP8) held at the Indian Institute of Technology, Mumbai, January 5-16, 2004. The topics covered are (i) Higgs searches (ii) supersymmetry searches (iii) extra dimensions and (iv) linear collider.Comment: summary of Working Group I at the Eighth Workshop on High Energy Physics Phenomenology (WHEPP8), I.I.T., Mumbai, January 5-16, 200

Plasma protein carbonyl levels and breast cancer risk

AbstractTo study the role of oxidative stress in breast cancer risk, we analysed plasma levels of protein carbonyls in 1050 cases and 1107 controls. We found a statistically significant trend in breast cancer risk in relation to increasing quartiles of plasma protein carbonyl levels (OR = 1.2, 95% CI = 0.9–1.5; OR = 1.5, 95% CI = 1.2–2.0; OR = 1.6, 95% CI = 1.2–2.1, for the 2nd, 3rd and 4th quartile relative to the lowest quartile, respectively, P for trend = 0.0001). The increase in risk was similar for younger (30 grams per day. Women with higher levels of plasma protein carbonyl and urinary 15F2t-isoprostane had an 80% increase in breast cancer risk (OR = 1.8, 95% CI = 1.2–2.6) compared to women with levels below the median for both markers of oxidative stress. In summary, our results suggest that increased plasma protein carbonyl levels may be associated with breast cancer risk

Associations between Polycyclic Aromatic Hydrocarbon–Related Exposures and p53 Mutations in Breast Tumors

Background: Previous studies have suggested that polycyclic aromatic hydrocarbons (PAHs) may be associated with breast cancer. However, the carcinogenicity of PAHs on the human breast remains unclear. Certain carcinogens may be associated with specific mutation patterns in the p53 tumor suppressor gene, thereby contributing information about disease etiology. Objectives: We hypothesized that associations of PAH-related exposures with breast cancer would differ according to tumor p53 mutation status, effect, type, and number. Methods: We examined this possibility in a population-based case–control study using polytomous logistic regression. As previously reported, 151 p53 mutations among 859 tumors were identified using Surveyor nuclease and confirmed by sequencing. Results: We found that participants with p53 mutations were less likely to be exposed to PAHs (assessed by smoking status in 859 cases and 1,556 controls, grilled/smoked meat intake in 822 cases and 1,475 controls, and PAH–DNA adducts in peripheral mononuclear cells in 487 cases and 941 controls) than participants without p53 mutations. For example, active and passive smoking was associated with p53 mutation–negative [odds ratio (OR) = 1.55; 95% confidence interval (CI), 1.11–2.15] but not p53 mutation–positive (OR = 0.77; 95% CI, 0.43–1.38) cancer (ratio of the ORs = 0.50, p < 0.05). However, frameshift mutations, mutation number, G:C→A:T transitions at CpG sites, and insertions/deletions were consistently elevated among exposed subjects. Conclusions: These findings suggest that PAHs may be associated with specific breast tumor p53 mutation subgroups rather than with overall p53 mutations and may also be related to breast cancer through mechanisms other than p53 mutation

Mutations in p53, p53 protein overexpression and breast cancer survival

p53 is an important tumor-suppressor gene that encodes p53 protein, a molecule involved in cell cycle regulation, and has been inconsistently linked to breast cancer survival. Using archived tumor tissue from a population-based sample of 859 women diagnosed with breast cancer between 1996–1997, we determined p53 mutations in exons 5–8 and p53 protein overexpression. We examined the association of p53 mutations with overexpression and selected tumor clinical parameters. We assessed whether either p53 marker was associated with survival through 2002, adjusting for other tumor markers and prognostic factors. The prevalence of protein overexpression in the tumor was 36% (307/859) and any p53 mutation was 15% (128/859). p53 overexpression was positively associated with the presence of any p53 mutation (odds ratio (OR)=2.2, 95% confidence interval (CI)=1.5–3.2), particularly missense mutations (OR=7.0, 95%CI=3.6–13.7). Negative estrogen and progesterone receptor status (ER/PR) was positively associated with both p53 protein overexpression (OR = 2.6, 95% CI = 1.7–4.0), and p53 mutation (OR = 3.9, 95% CI = 2.4–6.5). Any p53 mutation and missense mutations, but not p53 protein overexpression, were associated with breast cancer-specific mortality (Hazard ratio HR=1.7, 95%CI=1.0–2.8; HR=2.0, 95%CI=1.1–3.6, respectively) and all-cause mortality (HR=1.5, 95%CI=1.0–2.4; HR=2.0, 95%CI=1.2–3.4, respectively); nonsense mutations were associated only with breast cancer-specific mortality (HR=3.0, 95%CI=1.1–8.1). These associations however did not remain after adjusting for ER/PR status. Thus, in this population-based cohort of women with breast cancer, although p53 protein overexpression and p53 mutations were associated with each other, neither independently impacted breast-cancer specific or all-causing mortality after considering ER/PR status