A Quantum Key Distribution Network Through Single Mode Optical Fiber

Quantum key distribution (QKD) has been developed within the last decade that is provably secure against arbitrary computing power, and even against quantum computer attacks. Now there is a strong need of research to exploit this technology in the existing communication networks. In this paper we have presented various experimental results pertaining to QKD like Raw key rate and Quantum bit error rate (QBER). We found these results over 25 km single mode optical fiber. The experimental setup implemented the enhanced version of BB84 QKD protocol. Based upon the results obtained, we have presented a network design which can be implemented for the realization of large scale QKD networks. Furthermore, several new ideas are presented and discussed to integrate the QKD technique in the classical communication networks.Comment: This paper has been submitted to the 2006 International Symposium on Collaborative Technologies and Systems (CTS 2006)May 14-17, 2006, Las Vegas, Nevada, US

Diabetic Neuropathy And Its Correlation With Vitamin D3

oai:ojs2.biosight.org:article/1The purpose of this study was to determine neurotransmitter and vitamin D3 levels in both men and women. Fifty healthy middle-aged men and women of 41.17 ± 9.6 and 42 ± 9.59 years respectively were selected. They have no known disease. While 50 male and female diabetic patients with an average age of 55.5 ± 14.92 and 47.87 ± 10.81 years were selected respectively. Anthropological data, including age, weight and length, were recorded in both controls and patients. To test the hypothesis of study relationship between vitamin D and neurotransmitters was analyzed in both groups. The statistical significance was taken at the p-level <0.05. The diabetic patients had neuropathy for 3 to 5 years with high HbA1c. Age and gender do not significantly affect neuropathy in diabetes. The average standard deviation of vitamin D3 is significantly lower in those having diabetic neuropathies, 12,448 ± 3,519 ng / ml (SD), which is not 24,958 ± 5,419 ng / ml, and was compared with vitamin D3 neuropathy in patients who did not have diabetes. (p <0.01). This analysis has shown that the neuropathy of diabetes is strongly linked to vitamin D3 after including confusion such as "Duration of diabetes and HbA1c". In patients with diabetes, the effects of vitamin D3 on neuropathy and the need for further studies ensure that there is a delay in preventing the dose of vitamin D3 or in the onset of neuropathy due to diabete

Chronic Lymphocytic Leukemia: Autoimmune Presentations in A tertiary Care Hospital of Lahore

Objective: To determine the frequency of presenting features and complication in chronic lymphocytic leukaemia Methodology: This descriptive study was conducted at the Hematology department, King Edward Medical University and affiliated hospitals, from July to December 2017. For every patient, a through clinical and dermatological examination, abdominal ultrasound , bone marrow examination was done. Afresh 3 ml blood sample for CBC, immune profile, and serum testing was collected by a syringe using aseptic technique. A complete blood count was carried out using Automated Haematology Analyzer (Sysmex KX-21) and chemical examination was done on Beckman Coulter Beckman coulter. Reticulocyte count was done and direct antiglobulin test using coomb’s reagent was done. Every patient was evaluated for the creteia of SLE and was categorized accordingly. Results: Out of the 150 patients enrolled in the study, 122(81.3%) were male and 28(18.7%) patients were female. The mean age was 65.8 ± 1.33 years with the majority of patients falling in the group of 71- 80 years. Out of 150 patients, 40 (26.7%) had coombs positive. Most of the patients who had coombs positive were in stage 4. The patients who presented with complications such as paraneoplastic pemphigus were 1 out of 150 patients. Splenomegaly was found in 87.3 % of all CLL patients with 13.33% presented with massive splenomegaly .Angioedema was found in 2 out of 150 patients. No case of SLE, Sjogren s syndrome Churg strauss Syndrome, Vasculitis or Richters Trasnformation was found. Conclusion: Detection of complications in a significant number of CLL patients is related to disease progression and overall survival. The treatment modalities are different in different causes of anaemia and complications due to CLL. It will help the clinicians in modifying the treatment and decreasing the misery of patients due to  co morbidities

The Relationship Between Enterprise Risk Management and Cost of Capital

This paper investigates the effect of enterprise risk management (ERM) implementation on the cost of capital (cost of debt, cost of equity, and weighted average cost of capital) for the oil and gas industry. The research is conducted using panel data analysis from 2008-2017 for 41 oil and gas companies publicly listed on the Bursa Malaysia. ERM implementation data is collected from company annual reports, while the cost of capital data is obtained from Thomson Reuters DataStream. The results indicate that an increase in the level of ERM implementation reduces the cost of capital, which we argue is one mechanism through which ERM increases firm value. Future research can use our investigation to delve deeper into ERM and value creation topics

Aged garlic extract reduces low attenuation plaque in coronary arteries of patients with diabetes: A randomized, double-blind, placebo-controlled study.

Several previous studies have demonstrated that aged garlic extract (AGE) inhibits the progression of coronary artery calcification and non-calcified plaque (NCP) in the general population. However, its effects on plaque progression in patients with diabetes have not yet been investigated, at least to the best of our knowledge. This study investigated whether AGE reduces the coronary plaque volume measured by cardiac computed tomography angiography (CCTA) in patients with diabetes mellitus (DM). A total of 80 participants with DM with a median age of 57 years were prospectively assigned to consume 2,400 mg AGE/day (after completion, 37 participants) or placebo (after completion, 29 participants) orally. Both groups underwent CCTA at baseline and follow-up 365 days apart. In total, 66 participants completed the study. Coronary plaque volume, including total plaque (TP), dense calcium (DC), fibrous, fibro-fatty and low-attenuation plaque (LAP) volumes were measured based upon pre-defined intensity cut-off values using semi-automated software (QAngio CT). Changes in various plaque types were normalized to the total coronary artery length. The non-parametric Wilcoxon rank-sum test was performed to examine the differences in plaque formation between the 2 groups. No significant differences were found in the baseline characteristics between the AGE and placebo groups. Compared with the placebo group, the AGE group exhibited a statistically significant regression in normalized LAP [median and standard deviation (SD) -0.2 (18.8) vs. 2.5 (69.3), P=0.0415]. No differences were observed in TP, fibrous, or fibrofatty plaque volumes between the AGE and placebo group. On the whole, this study indicated that the %LAP change in the AGE group was significantly greater than that in the placebo group in patients with diabetes. However, further studies are warranted to evaluate whether AGE has the ability to stabilize vulnerable plaque and decrease adverse cardiovascular events

Stereospermum fimbriatum as a potential source of phytochemicals: a review of stereospermum genus

Stereospermum fimbriatum is one of the medicinal plants that has been claimed to be used traditionally to treat several illnesses such as stomachache, ear-ache, skin irritation and postpartum illness. The genus of this plant is known to pos-sess medicinal properties in every part of the plant. Therapeutic potential of S. fim-briatum is anticipated based on numerous previous studies that documented variety of phytochemical contents and bioactivity of the genus. The most reported bioactiv-ities of its genus are antimicrobial, antioxidant, anti-diabetic, anti-inflammatory, anti-diarrheal and analgesic activities. S. fimbriatum is a rare species that has not been discovered yet. Thus, this review aims at highlighting the potentials of S. fim-briatum by collecting available data on the bioactivities of its genus and set the di-rections for future research on this plant

A metasurface-based single-layered compact AMC-backed dual-band antenna for off-body IoT devices

In this article, a compact printed monopole dual-band antenna using artificial magnetic conductor (AMC)-plane with improved gain and broader bandwidth, applicable for off-body internet of things (IoT) devices is presented. The monopole antenna consists of two C-shaped resonators connected through a U-shaped monopole, parasitic elements, discrete ground circular rings and a co-planar waveguide (CPW) feedline. Each artificial magnetic conductor (AMC) unit cell consists of a slotted circular and a square stubs, designed with two zero-crossing phases for improving the radiation characteristics and to achieve the high gain. The overall size of the proposed AMC-backed antenna is 44.4 mm ×44.4 mm ×1.6 mm with electrical dimensions of 0.75λ g × 0.75λ g× 0.027λ g. This AMC-backed antenna featured measured bandwidths of 9.6% and 12.4% with improved measured gain values of 4.88 dB and 4.73 dB at 2.45 GHz and 5.8 GHz, respectively. The specific absorption rate (SAR) values are analysed and found to be 1.58 W/kg at 2.45 GHz and 0.9 W/kg at 5.8 GHz. Therefore, the proposed AMC-backed antenna is useful for off-body IoT devices operating at 2.45 and 5.8 GHz industrial, scientific, and medical (ISM) band applications.This work was supported in part by the Universidad Carlos III de Madrid; in part by the European Union’s Horizon 2020 Research and Innovation Programme under Marie Sklodowska-Curie Grant 801538; in part by the Ministerio de Ciencia, Innovación y Universidades, Gobierno de España (MCIU/AEI/FEDER and UE) under Grant RTI2018-095499-B-C31; and in part by the Researchers Supporting Project, King Saud University, Riyadh, Saudi Arabia, under Project number RSP-2021/58