SESAME, a third generation synchrotron light source for the Middle East region

Developed under the auspices of UNESCO, SESAME is being established as an autonomous international research centre in the Middle East/Mediterranean region. It will have as its centrepiece a 2.5 GeV third Generation synchrotron light source with 13 straight sections for insertion devices and an emittance of 26.6 nm-rad. It will provide intense radiation from the IR to hard X-rays to a community that is expected to exceed 1000 users a few years after the start of operation in 2008

Studies on the filtration, feeding and excretion rates in Perna viridis, Marcia cor and Crassostrea gryphoides (Mollusca: Bivalvia) using P³² labelled Ankistrodesmes

The study deals with a series of experiments to investigate feeding and excretion in three species of bivalves: Perna viridis (Linné), Marcia cor (Sowerby) and Cassostrea gryphoides (Gould) from Manora Channel, Karachi. Bivalves were fed with suspensions of Ankistrodesmes labelled with P³². These animals showed a considerable variation in the average filtration rates depending upon species and the body lenght. Exceptionally high content of the P³² introduced with Akistrodesmes, got excreted as pseudofaeces and faeces within first three days following its absorption as a meal. The assimilated P³² is partly released as faecal material and its major proportion is directly transferred to the solution. As expexted the gonad and kidney are the main organs found responsible for excretion as comared to other body parts. Although, the assimilated P³² is mostly concentrated in the digestive glands, the results also show a significant presence of P³² in the gonads. Accumulation of P³² was the least in the foot

Is early diagnosis of myofascial pain syndrome possible with the detection of latent trigger points by shear wave elastography?

Purpose: The aim of the study was to investigate the contribution of shear wave elastography to the diagnosis of myofascial pain syndrome (MPS) of the upper part of the trapezius. Material and methods: Ethical committee approval was obtained for the study. Thirty volunteer women with trigger points in the upper part of the trapezius muscle and 30 healthy women with a similar age distribution were included in the study. The patient group performed a self-stretching exercise program for 4 weeks. No intervention was applied to the control group. Muscle stiffness values of both groups were evaluated with shear wave elastography (SWE), and pain levels of all volunteers were evaluated by the Visual Analogue Scale at the beginning and the end of the study. The statistical analyses were performed using SPSS version 18.0. Results: There was a significant decrease after the treatment in terms of upper trapezius muscle stiffness and the pain levels in the patient group (p 0.05). Conclusions: SWE is a reliable method for detecting latent trigger points in MPS, and it can be used for evaluating the response to treatment

No Free Lunch for Early Stopping

We show that, with a uniform prior on hypothesis functions having the same training error, early stopping at some fixed training error above the training error minimum results in an increase in the expected generalization error. We also show that regularization methods are equivalent to early stopping with certain non-uniform prior on the early stopping solutions

Anderson localization in optical lattices with speckle disorder

We study the localization properties of non-interacting waves propagating in a speckle-like potential superposed on a one-dimensional lattice. Using a decimation/renormalization procedure, we estimate the localization length for a tight-binding Hamiltonian where site-energies are square-sinc-correlated random variables. By decreasing the width of the correlation function, the disorder patterns approaches a $\delta$-correlated disorder, and the localization length becomes almost energy-independent in the strong disorder limit. We show that this regime can be reached for a size of the speckle grains of the order of (lower than) four lattice steps.Comment: 4 pages, 1 figur

Monetary Policy and Financial Asset Prices: Empirical Evidence From Pakistan

Monetary transmission mechanism assumed to be significantly influenced by the effect of policy decisions on financial markets. However, various previous studies have come up with different outcomes. The purpose of this study is to examine the impact of monetary policy on different asset classes (shares and bonds) in Pakistan. This study using stock price and bond yield as dependent variable and discount rate, money supply, inflation, and exchange rate are independent variables. Data of all variables have collected from 2010 to 2016, and Vector Autoregressive (VAR) technique has applied. The empirical results indicate that there is an impact of monetary policy components on both stock and bond market as an increase in policy rate causes decline in stocks prices and bonds yields. The findings of this study will help the potential investors in making long-term (in general) and short-term (in particular) investment strategies concerning monetary policy.DOI: 10.15408/sjie.v7i2.709

Calcaneal fractures: an audit of radiological outcome.

Abstract OBJECTIVE: To assess radiological outcome of management of calcaneal fractures. METHODS: The retrospective study was conducted at Aga Khan University Hospital, Karachi, and comprised data of calcanealfractures managed between February , 2008 and February, 2014 Cases were identified through medical records, and X-rays were reviewed through digital radiology archive. Bohler\\u27s angle, Gissane\\u27s angle, calcaneal height and width were assessed digitally on pre-operative and post-operative X-ray images. RESULTS: Of the27 patients, only 1(3.7%) was female. The cause of fracture was fall from height 15(56%), road traffic accidents 7(26%) and bomb blasts5(19%). Tongue type fractures were 16(59%) and 11(41%) were joint depression type. There was a significant mean increase in Bohler\\u27s angle (p0.05 each). CONCLUSIONS: Measurable improvement in anatomical parameters is possible with surgery, which is a prerequisite for good functional results

Societal preferences for gender of surgeons: A cross-sectional study in the general population of Pakistan

Background: Sociocultural norms and gender biases may result in surgeon gender preferences among the general public. This study aimed to understand preferences and perceptions related to surgeon gender among the general population in Pakistan, a lower-middle-income country.Methods: A cross-sectional study was conducted by the Aga Khan University, Karachi, among the adult general population in Pakistan. Sequential mixed-mode data collection was performed via online dissemination on social media platforms and in-person surveying at different geographic locations in Karachi.Results: Among 1604 respondents, 50% did not report having surgeon gender preferences in general. Among respondents with gender preferences, there was a highly significant preference for gender concordance across all surgical subspecialties (p Conclusion: While around half of respondents do not have gender preferences, a significant proportion prefers a gender concordant surgeon across subspecialties. In a society where conservative sociocultural norms play a significant role when seeking health care, this makes yet another compelling argument for gender parity in surgery

A study of changing trends of maternal mortality at the tertiary care centre, MMC & RI Mysore, India

Background: Maternal mortality is a reflection of the care given to women by the society. It is tragic that deaths occur during the natural process of child birth and most of them are preventable. Aims and objectives: To study the maternal mortality and the causes resulting in maternal death over 5 years in a tertiary care centre, Cheluvamba hospital, MMC & RI, Mysore. To find out avoidable factors and use information thus generated to reduce maternal mortality.Methods: A retrospective study of all maternal deaths from June 2008 to June 2013. All maternal deaths were reviewed and studied in detail including admission death interval and cause of death.  Results: Maternal mortality ratio ranged between 262 to 109/100000 births. The causes of death were hypertensive disorders (30.4%), haemorrhage (24.8%), anaemia (14.8%), sepsis (6.8%) and others (23.2%). Maximum deaths (70.6%) occurred in women between 20-29 years of age, multigravida contributed to 54.96% of maternal mortality. 42 % were unbooked, 97% were referred cases. Conclusions: Overall maternal mortality was 215/100000 live births. Maternal deaths due to direct obstetric causes were 87% and indirect were 13 %. The causes of potentially preventable deaths include haemorrhage, anaemia, sepsis, disseminated intravascular coagulation and its complications. Hypertensive disorders were the leading cause of death, followed by haemorrhage. Anaemia was an important indirect cause of death. Most maternal deaths are preventable by optimum utilization of existing MCH facilities, identifying the bottlenecks in health delivery system, early identification of high risk pregnancies and their timely referral to tertiary care centre

Short and oral antimicrobial therapy for diabetic foot infection: a narrative review of current knowledge

Diabetic foot infection is a frequent complication in long-standing diabetes mellitus. For antimicrobial therapy of this infection, both the optimal duration and the route of administration are often based more on expert opinion than on published evidence. We reviewed the scientific literature, specifically seeking prospective trials, and aimed at addressing two clinical issues: (1) shortening the currently recommended antibiotic duration and (2) using oral (rather than parenteral) therapy, especially after the patient has undergone debridement and revascularization. We also reviewed some older key articles that are critical to our understanding of the treatment of these infections, particularly with respect to diabetic foot osteomyelitis. Our conclusion is that the maximum duration of antibiotic therapy for osteomyelitis should be no more than to 4-6 weeks and might even be shorter in selected cases. In the future, in addition to conducting randomized trials and propagating national and international guidance, we should also explore innovative strategies, such as intraosseous antibiotic agents and bacteriophages