Application of Electro kinetic technique to remediate fly ash for its sustainable use

Fly ash is a by-product of coal combustion in thermal power plants which is classified as hazardous waste and a serious threat to environment. The study was conducted to determine the potential and examine the efficacy of electro kinetic technique (EKT) using variables like pH, total dissolved solids (TDS), e concentration of chlorides (Cl-), sodium (Na+),magnesium (Mg2+), potassium (K+), ammonia (NH3+) and calcium (Ca2+) on fly ash as a low-cost treatment for enhancing the use of fly ash in a more sustainable manner. The probability of removing heavy metals and chlorides from fly ash suspended in water using electro dialysis was studied as they are highly dependent on pH and conductivity of the fly ash. The voltage gradient and duration indicated significant effect in the change of pH values showing a range from 4.6 to 7.7 at cathode and anode respectively, while the Total dissolves solids (TDS) varying from 72.33±5.6 to 146±5.4 showed the enhanced availability of ions post electro dialysis. In terms of chlorides, Cl- the content was observed to be 265.06 mg/l which was high enough to cause corrosion problems in later stages of reuse of fly ash. The concentration of cations like Na+, K+, NH3+, Mg2+, Ca2+ were observed to be notably influenced by the duration of study and pH in electro dialysis. The experimental results of the study showed that the proposed technique based on the fundamentals of electro kinetics and dialysis could efficiently improve the remediation process which would remove metals by converting them to available form in fly ash

Sparse Nerves in Practice

Topological data analysis combines machine learning with methods from algebraic topology. Persistent homology, a method to characterize topological features occurring in data at multiple scales is of particular interest. A major obstacle to the wide-spread use of persistent homology is its computational complexity. In order to be able to calculate persistent homology of large datasets, a number of approximations can be applied in order to reduce its complexity. We propose algorithms for calculation of approximate sparse nerves for classes of Dowker dissimilarities including all finite Dowker dissimilarities and Dowker dissimilarities whose homology is Cech persistent homology. All other sparsification methods and software packages that we are aware of calculate persistent homology with either an additive or a multiplicative interleaving. In dowker_homology, we allow for any non-decreasing interleaving function $\alpha$. We analyze the computational complexity of the algorithms and present some benchmarks. For Euclidean data in dimensions larger than three, the sizes of simplicial complexes we create are in general smaller than the ones created by SimBa. Especially when calculating persistent homology in higher homology dimensions, the differences can become substantial

Prospective study to compare abdominal hysterectomy versus non- descent vaginal hysterectomy at a tertiary care hospital

Background: Hysterectomy can be performed by vaginal, abdominal and via laparoscopic route. In the current scenario of importance of non-invasive surgery there has been increase in interest and requirement of vaginal hysterectomy for non-prolapsed uterus i.e. Non-descent vaginal hysterectomy (NDVH) due to scarless surgery. Gynecologist across the world continue to use the abdominal approach for a large majority of hysterectomies that may be performed vaginally despite well documented evidence which says that vaginal hysterectomy do have better outcome. This study aimed to find out to compare outcomes of NDVH and Abdominal hysterectomy (AH).Methods: The study is conducted at department of Obstetrics and Gynecology, at a tertiary care hospital Gujarat, India, between the periods of May 2018 to December 2019 of 100 patients. 50 Patients who underwent hysterectomy by abdominal route are taken as study group A and 50 Patients who underwent hysterectomy by vaginal routes are taken as group B.Results: Out of 100 women we have studied, duration of surgery, intra operative blood loss, intra operative complications, postoperative morbidity and duration of hospital stay, time required to resume normal work are less in group B (NDVH).Conclusions: It can be concluded that NDVH is feasible, safe and better alternative to abdominal hysterectomy for benign gynecological conditions. It also provides greater efficacy and safety with minimal invasiveness

Ethnobotany of Acacia jacquemontii Benth. - An Uncharted Tree of Thar Desert, Rajasthan, India

The present ethnobotanical study describes the traditional knowledge related to the use of Acacia jacquemontii and its derived products used by the tribes and communities reside in the Thar Desert of Rajasthan, India. Acacia jacquemontii is a versatile tree suitable for afforestation, social and agroforestry. In addition to their normal utility in wood production, soil improvement, nitrogen fixation, these provide certain other products like fodder, fruits, gums, fibers and roofs. During the survey, it was noted that tree parts such as bark, roots and gum were commonly used by the tribals to cure various diseases and disorders. Indigenous healthcare practices, provide low cost alternatives in situation where modern health care services are not available or too expensive. This preliminary study about this unexplored tree would be valuable resource for humankind

Treatment with Green Tea Prevents Intracerebroventricular Streptozotocin Induced Cognitive Impairment and Oxidative Stress in Mice

Green tea polyphenols have demonstrated significant antioxidant, anti-carcinogenic, anti-mutagenic and antidiabetic in numerous human, animal and in vitro studies. Hence present study was design to evaluate the influence of green tea in streptozotocin induced oxidative stress in mice.Morris water maze, Elevated plus maze and passive avoidance apparatus was used for the evaluation of learning and memory. Brain thiobarbituric acid reactive substance was also estimated.Intracerebroventricular administration of streptozotocin reduces the learning and memory and increase the concentration of thiobarbituric acid reactive substance in mice. Green tea significantly improves the learning and memory and reverses the increase thiobarbituric acid reactive substance concentration in mice.The result of present study indicates that green tea improve the learning and memory. It also reduces the streptozotocin induced oxidative stress.Keyword: Hippocampus, degenerative disease, green te