Concave grating spectrometer Patent

Concave grating spectrometer for use in near and vacuum ultraviolet region

The New Economic Policy and Perspective for Marine Fisheries Research and Development in India

The New Economic Policy and Perspective for Marine Fisheries Research and Development in Indi

Relation between outgoing longwave radiation and findlater jet over Arabian Sea during summer monsoon and influence on Indian monsoon rainfall

428-435This work analyses the relationship between outgoing Longwave radiation (OLR) and Findlater jet (FLJ) intensities at 850 hPa pressure level and also their relation with Indian summer monsoon rainfall (ISMR; June-September) for a period of 1997-2010 over Arabian Sea and India. FLJ is a low-level jet (LLJ) which can be observed during southwest monsoon months. This LLJ generally supports the large-scale moisture and momentum transport from ocean to atmosphere, which results in rainfall over India. FLJ and OLR are associated during the monsoon months. However FLJ (positively) and OLR (negatively) are related with ISMR. Monthly and seasonal correlation coefficients among FLJ, OLR and ISMR presented and the deviations during El Nino/La Nina are discussed. Based on this analysis we recommend that the variations in FLJ should include interannual variability in atmospheric dynamics

Awareness, attitude and practice of contraception amongst post-partum women in a rural tertiary care hospital, Telangana, India

Background: India was the first country in the world to start the National Family Welfare Program in 1951. But population stabilization has been a difficult target to achieve and by the year 2028, our population is expected to surpass that of China. This study was conducted among puerperal women delivered at our hospital to know their awareness about various methods of contraception and willingness to practice any of these methods.Methods: This cross-sectional interview-based study was conducted in the department of obstetrics and gynecology at Bhaskar Medical College and Hospital, Moinabad, Hyderabad from September 2015 to August 2016. The study sample were women who delivered in our hospital and a set questionnaire was used.Results: A total of 502 women in the post-partum period were included in the study.88.85% women were aware of any modern contraceptive. 30.85% of these women were aware of only the surgical method, i.e. sterilization; and another 58% women were aware of temporary methods also. Most of them knew about multiple methods, but tubectomy was the main method was known to the maximum (78%). As the literacy levels rose, awareness about temporary methods and male sterilization also increased. 70% of the study population were not aware of free availability of all these methods at Government hospitals and at our hospital.80.5% of these women were motivated after this study to accept a contraceptive method.Conclusions: There is a great unmet demand for contraception among rural women in India. Proper dissemination of the information about free availability of these methods by rural health workers, hospital staff and making these accessible in the peripheral areas of the country will help these couples. Providing oral, written and visual information to all the pregnant women at each ante-natal visit will be additional methods

Holographic grating based Ebert spectrograph

In this paper we discuss the aberration properties and design procedure of in-plane Ebert spectrograph using conventional as well as holographic diffraction gratings. In both cases the gratings are situated at the well-known √3-position so that the spectrum can be recorded on a flat surface. It has been found that the holographic grating system has better resolution than the conventional grating system. The design parameters of a medium sized holographic grating spectrograph in which a concave spherical mirror is mounted in the off-axis configuration have been specified. The performance of the spectrograph has been evaluated by plotting spot diagram

Flat field spectrograph using convex holographic diffraction grating and concave mirror

In this paper we have discussed the aberration properties and the design procedure of a spectrograph which uses a convex holographic grating as the dispersing element and a concave mirror as the focusing element. Both the concave mirror and the convex grating have common axis and they are concentric. The grating is constructed by recording the interference fringes on the convex surface which are formed by two convergent light beams incident from opposite sides of the axis. The illuminating source of the spectrograph is located on a plane perpendicular to the axis and passing through the common centre. It has been found that under certain conditions both positive and negative order spectra are perfectly focused on this plane. Aberration properties of the zero order image as well as the positive and the negative order spectral images have been studied by actual ray tracing. Using this system, design parameters of a medium-sized spectrograph having moderate dispersion and good resolution throughout theuv-visible region of the spectrum have been specified. The performance of the spectrograph has been evaluated by plotting spot diagram

Live-bait resources and development

The success of the pole and line fishery of Lakshadweep depends, among other factors, directly on the availability in sufficient quantities of suitable live-bait fishes around the islands. Information on the live-bait resources of Lakshadweep is limited to a few reports from Minicoy- Jones (1958, 1964) described the fishing method, storage and utilisation of bait fish and Iisted the various species of live-bait fishes of Lakshadweep. Jones (1961 a, 1961 b) has predicted the potentialities of Spratelloides delicatulus and S. japonicus as live-bait for pole and line fishery for skipjack much earlier than mechanised fishing was introduced in the northern islands of Lakshadweep. Thomas (1964) made some observations on the fluctuations in the live-bait fishes at Minicoy. Fluctuations in the seasonal availability of live-baits at Minicoy during the years 1981-85 has been presented by Pillai et al. (1986). However, details of exploited bait fish resources and seasonal abundance of different bait species around the various islands is still lacking

Antihyperlipidemic activity of Chloroxylon swietenia in triton WR1339 induced hyperlipidemia

Background: Medicinal herbs are beneficial and effective either in the management and prevention of several metabolic disorders, associated with hyperlipidemia, hypertension and insulin resistance which increases the cardio-metabolic risk and demands for the life time therapy. Current allopathic medicines are expensive and reported with several adverse effects and hence, finding of a suitable herbal medicine for hyperlipidemic disorders is very important.Methods: Thirty albino rats weighing 200-230g were randomly divided into 5 groups were rendered hyperlipidemia with a single dose of triton WR 1339. Normal control, positive control, standard, aqueous and ethanolic extract groups were treated with tween-80, tween-80, atorvastatin, aqueous and ethanolic extracts of Chloroxylon swietenia respectively for seven days. At the end of the study, blood was collected for estimation of the lipid profile.Results: Both the aqueous and ethanolic extract groups significantly reduced the TG and VLDL levels.Conclusions: The extracts exhibited remarkable activity on one or either parameter of the lipid profile. It could be due to the presence of alkaloids, steroids, flavonoids, coumarins and phenols in the extracts

Adapting to climate change in Agriculture: Building resiliency with an effective policy frame in SAT India

Climate change has emerged as the biggest threat to livelihood sustainability of our times, posing an imminent danger to our food security and a challenge for improving agricultural productivity. Presently, scientists are identifying and refi ning the projections of future location specifi c climate scenarios that farmers might have to deal with. In India, annual mean surface air temperature is projected to rise by 1.7°C to 2.0°C by 2030 (INCCA 2010). These projections further imply that there can be a predicted decrease in rainy days in most parts of the Indian subcontinent by 2030. Climate Change projections for the coming 50 to 100 years are alarming. Indian agriculture will have to face these climatic changes in the coming decades. The semi-arid tropics (SAT) of India already face multiple challenges of low and uncertain rainfall, poor soil fertility, inadequate infrastructure, high population pressure as well as high levels of poverty. The future governments of India must grapple with the changed climate and associated productivity decline while at the same time meeting the demands of increasing productivity in order to feed the increasing population

Chromosomal translocation t(15;17) in human acute promyelocytic leukemia fuses RARα with a novel putative transcription factor, PML

A unique mRNA produced in leukemic cells from a t(15;17) acute promyelocytic leukemia (APL) patient encodes a fusion protein between the retinoic acid receptor a (RARa) and a myeloid gene product called PML. PML contains a cysteine-rich region present in a new family of apparent DNA-binding proteins that includes a regulator of the interleukin-2 receptor gene (Rpt-1) and the recombination-activating gene product (RAG-l). Accordingly, PML may represent a novel transcription factor or recombinase. The aberrant PML-RAR fusion product, while typically retinoic acid responsive, displays both cell type- and promoter-specific differences from the wild-type RARa. Because patients with APL can be Induced into remission with high dose RA therapy, we propose that the nonliganded PML-RAR protein is a new class of dominant negative oncogene product. Treatment with RA would not only relieve this inhibition, but the activated PML-RAR protein may actually promote myelocyte differentiation