134 research outputs found
The Grass Diversity of Vagamon Hills in Kerala
Grasses contribute tremendously to the earth’s green mantle of vegetation. They are one of the most widely distributed groups of angiosperms with gross morphological complexity. Among flowering plants Gramineae, with their 10,000 species and 620 genera is the fourth largest family of the flowering plants. They owe their importance in the plant kingdom not so much to their multiplicity of species as to their ability to flourish and spread quickly in great areas of low rainfall. Many are cultivated as cereal crops, as ornamentals and as plants of medicinal and industrial importance. Grasslands form an important vegetation type in the high ranges of Western Ghats in the states of Karnataka, Kerala and Tamil Nadu, mostly between 1000-2200 m above msl. The species diversity is extremely high in grassland-forest margins that are very frequent in south Indian forest vegetation especially along Nilgiri and Anamalai - High Ranges. The grasslands of South India, especially Vagamon hills are represented as centre of Endemism due to their exceptional bio-diversity. There are 77 species of grasses recognized from the Vagamon hills. Out of the 77 Species of grasses 18 are endemic to Peninsular India. 25 Species of grasses recognized as exotic alien Species in the study area. Also this research has focused on the ecological environment of the study area
The continued existence of preventive detention law in Malaysia: whether terrorism is a justification / Musalmi Kholid, Sendra Mathew Masir and Stella Augustine Druce
This research is a study on the preventive detention law in Malaysia, namely the Internal Security Act (ISA) 1960 in relation to terrorism and issues revolving around it. Distinct from other studies made on the ISA, this study purports to analyze the Act in response to claims made by the authorities on ISA in post September 11 tragedy in New York. The writers seek to materialize a connection between terrorism threats and the real use of ISA in so far it has been in force as well as finding the real cause of terrorism and what are the options to encounter it. Damages and benefit the Act does will also be identified. The first stage of the study will involve information collecting and a review on it; which is then followed by a qualitative analysis on the subject which will be done through legal analysis and reasoning
Preliminary Findings on Metastatic Brain Tumors in Enugu, Southeast Nigeria
Background: Metastatic brain tumors (MBTs) are the most common brain neoplasms seen clinically and are often associated with poor outcomes. This study highlights the demographic, clinical, and radiological profiles as well as outcomes of MBTs managed in a tertiary hospital in Southeast Nigeria.
Methods: This was a 1-year prospective observational study of patients with MBT who presented to the neurosurgery unit of the University of Nigeria Teaching Hospital, Enugu, from December 2018 to November 2019. Data on the demography, clinical and radiological features, treatment, and outcomes were collected and analyzed.
Results: Of the 31 patients with MBTs, 58.1% were female and 41.9% male. The mean age was 51.0 ± 15.2 years. The most common presenting features were limb weakness (77.4%), headache (58.1%), and personality changes (54.8%). About a quarter (26.7%) were fully conscious at presentation. Only 45.2% knew that they had a systemic malignancy (SM) before presentation. The breast (29.0%), lungs (22.6%), and skin (19.3%) were the common sources of metastases. The lesions were solitary in 25.8% and multiple in 74.2%. They were predominantly frontal (80.6%), with bilateral distribution in 64.5% of patients. Radiotherapy was done in 58.1% and surgery in 6.5% of patients. Prior knowledge of the existence of a SM (P = 0.045) and unilateral brain involvement (P = 0.013) were associated with better 30-day survival.
Conclusion: The breast is the most common source of brain metastasis. Prior knowledge of the existence of a SM and unilateral brain involvement is associated with better short-term survival.
Keywords: Brain, metastasis, primary, surviva
Code list of common marine living resources of the Indian Seas (With Revised Version)
The Central Marine Fisheries Research Institute has
been estimating marine fish landings along the Indian Coast
for the past three decades and the data are being furnished
to Central and State Governments, Industry, and national
and international agencies. The Institute is also involved
with the assessment of our marine fishery resources and
management of multispecies harvested by diverse fishing
gears. In the years to come, our commercially utilised
marine animal and plant resources may cover not only
conventional fin-and shell-fishes.but also non-conventional
groups, such as mesopelagics, sponges, corals and seaweeds.
There are endangered groups, such as marine
mammals and turtles, which are protected under Wildlife
Act. They occur as incidental catches or are 'occasionally
stranded and these need monitoring
Transient rapamycin treatment can increase lifespan and healthspan in middle-aged mice
The FDA approved drug rapamycin increases lifespan in rodents and delays age-related dysfunction in rodents and humans. Nevertheless, important questions remain regarding the optimal dose, duration, and mechanisms of action in the context of healthy aging. Here we show that 3 months of rapamycin treatment is sufficient to increase life expectancy by up to 60% and improve measures of healthspan in middle-aged mice. This transient treatment is also associated with a remodeling of the microbiome, including dramatically increased prevalence of segmented filamentous bacteria in the small intestine. We also define a dose in female mice that does not extend lifespan, but is associated with a striking shift in cancer prevalence toward aggressive hematopoietic cancers and away from non-hematopoietic malignancies. These data suggest that a short-term rapamycin treatment late in life has persistent effects that can robustly delay aging, influence cancer prevalence, and modulate the microbiome.P30 AG013280 - NIA NIH HHS; T32 AG000057 - NIA NIH HH
Targeting Viral ORF3a Protein: A New Approach to Mitigate COVID-19 Induced Immune Cell Apoptosis and Associated Respiratory Complications
Infection with SARS-CoV-2 is a growing concern to the global well-being of the public at present. Different amino acid mutations alter the biological and epidemiological characteristics, as well as immune resistance of SARS-CoV-2. The virus-induced pulmonary impairment and inflammatory cytokine storm are directly related to its clinical manifestations. But, the fundamental mechanisms of inflammatory responses are found to be the reason for the death of immune cells which render the host immune system failure. Apoptosis of immune cells is one of the most common forms of programmed cell death induced by the virus for its survival and virulence property. ORF3a, a SARS-CoV-2 accessory viral protein, induces apoptosis in host cells and suppress the defense mechanism. This suggests, inhibiting SARS-CoV-2 ORF3a protein is a good therapeutic strategy for the treatment in COVID-19 infection by promoting the host immune defense mechanism
Marine fisheries of the south-east coast of India during 2008
The south-east coast of India comprising the
states of Andhra Pradesh, Tamil Nadu and
Pondicherry have a total coastline of 2050 km which
is 34% of the total coastline of the country. This region
is more diverse with respect to the number of species
that are landed. In 2007, it was observed that 499
species were landed in Tamil Nadu, 294 in Andhra
Pradesh and 115 in Pondicherry
Survey on functionally diverse bacterial strains from marine finfishes and crustaceans
Prokaryotic microorganisms compromise a large
portion of the organic biomass of the world’s ocean
and play an important role in the biogeochemical
cycles and food webs of this ecosystem. Surface
colonization by microorganisms is ubiquitous in
marine systems with a large proportion of microbes
occurring as complex communities. Despite their
importance, comparatively little is known about the
phylogenetic composition of this complex microbial
population and the functional roles of their
members. Living surfaces are ideal to explore
colonization by microorganisms because eukaryotes
are subject to a constant bombardment from the
millions of microbial cells typically found in a millilitre
of seawater
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