The role of molecular structure on the microscopic thermodynamics: unveiling with Femtosecond Optical Tweezers

Microscopic thermodynamic studies can elucidate specific molecular interactions. In this work, we report the microscopic thermodynamics in binary liquid mixtures, which elucidate the role of molecular structure in nonlinear solvent response using femtosecond optical tweezers (FOT). We obtain the excess thermodynamics property of mixing in various Newtonian liquid mixtures by analyzing Microrheology data from FOT. Using our noninvasive 780 nm pulse laser we have trapped micron-sized particles to show how excess viscosity and residual Gibbs free energy change due to mixing. Furthermore, we establish from this study that hydrocarbon chain length and branching can modulate microscopic thermodynamics through intermolecular interaction. This work sheds light on the relationship between thermodynamic properties and viscosity, which is of immense importance for predicting transport properties, mixing, and chemical reactions.Comment: 11 pages, 8 Figures, additional supplementary information provide

Clinical evaluation of cases of lower genitourinary tract trauma with special reference to primary realignment in cases of posterior urethral distraction defect

Background: The exact management strategy for lower genitourinary tract trauma remains controversial. Primary realignment with/without suprapubic catheterization provides definitive procedure with low complications and avoids the need for further open surgeries.Methods: This was a prospective longitudinal study done on 31 cases with different complaints related to lower tract genitourinary trauma. All patients underwent suprapubic catheterization and/or primary realignment. The outcome was measured in the terms of time for discharge, urinary incontinence, stricture formation, erectile dysfunction and impotence.Results: Maximum proportion of patients with lower genitourinary injuries in the study was in 10-20 years age group (48.4%). Blunt trauma was accounted for 93.6% of lower genitourinary injuries. Road traffic accidents were the most common cause (90.32%) of lower genitourinary injuries. Urinary bladder injuries accounted for 41.9% of all lower genitourinary injuries. Blood at meatus is present in only about half of the significant urethral injuries. Primary realignment of urethral injury results in lesser duration of hospital stay (9.24±2.44 days), shorter length of suprapubic catheterization (11.67±4.78 days) and early spontaneous voiding (40.93±15.79 days). The stricture rate following primary realignment is low (31.25%). Erectile dysfunction was noted only in two patients (16.6%).Conclusions: Management of traumatic urethral disruption by primary realignment serves as ultimate therapy in majority of patients

Direct prediction of Expanded Bed Height as a function of Reduced Reynolds Number in a Gas Solid Fluidization

Abstract Studies in the expansio

Prospective randomised study of cases of pelvic fracture urethral distraction defects managed by early alignment versus initial suprapubic urinary diversion with delayed urethroplasty

Background: In complex pelvic fracture urethral distraction defects (PFUDD), early management prevents incidence of devastating complications such as urinary incontinence, restenosis and urethra cutaneous fistula. The aim of the present study was to study the outcome of patients with PFUDD undergoing early alignment (either by rail roading or endoscopic) compared with initial suprapubic urinary diversion with delayed urethroplasty.Methods: This was a prospective randomized study done at KGMU, Lucknow; having PFUDD during the period from June 2014 to July 2017. Patients with PFUDD were randomized in to two groups. Group A included 22 patients and managed by supra pubic cystostomy followed by delayed urethroplasty. Group B included 23 patients and managed by primary alignment by rail-roading and early endoscopic alignment. Patients were followed up after 6 weeks, 3 months and 6 months for measuring the primary and secondary outcomes during follow up.Results: The most common age group that sustained pelvic fracture urethral distraction defects injury are male of 21-40 years. In group A, stricture was present in all patients at 6 weeks post-surgery. Open urethroplasty was done at 3 months in 60% and 10% patients at 6 months.  In group B, stricture was present in 80% at 6 weeks, 40% at 3 months and 10% at 6 months. The incidence of ED in group A at 6 weeks, 3 months, was 25% patient which reduced to 20% at 6 months. In group B, ED was present in 30% patients 6 weeks, 3 months and which reduced to 25% at 6 months. No incontinence was observed in both groups.Conclusions: Primary realignment has significant benefits compared to SPC as realignment approach is associated with a 50%-55% decrease in stricture formation

Satellite Image Classification Using a Hybrid Manta Ray Foraging Optimization Neural Network

A semi supervised image classification method for satellite images is proposed in this paper. The satellite images contain enormous data that can be used in various applications. The analysis of the data is a tedious task due to the amount of data and the heterogeneity of the data. Thus, in this paper, a Radial Basis Function Neural Network (RBFNN) trained using Manta Ray Foraging Optimization algorithm (MRFO) is proposed. RBFNN is a three-layer network comprising of input, output, and hidden layers that can process large amounts. The trained network can discover hidden data patterns in unseen data. The learning algorithm and seed selection play a vital role in the performance of the network. The seed selection is done using the spectral indices to further improve the performance of the network. The manta ray foraging optimization algorithm is inspired by the intelligent behaviour of manta rays. It emulates three unique foraging behaviours namelys chain, cyclone, and somersault foraging. The satellite images contain enormous amount of data and thus require exploration in large search space. The spiral movement of the MRFO algorithm enables it to explore large search spaces effectively. The proposed method is applied on pre and post flooding Landsat 8 Operational Land Imager (OLI) images of New Brunswick area. The method was applied to identify and classify the land cover changes in the area induced by flooding. The images are classified using the proposed method and a change map is developed using post classification comparison. The change map shows that a large amount of agricultural area was washed away due to flooding. The measurement of the affected area in square kilometres is also performed for mitigation activities. The results show that post flooding the area covered by water is increased whereas the vegetated area is decreased. The performance of the proposed method is done with existing state-of-the-art methods

In-depth behavioral study of l-Prolinium Trichloroacetate single crystal: An efficient candidate for NLO applications

AbstractOrganic compounds have constantly proved to be a proficient candidate for nonlinear optical (NLO) applications. In this respect an organic amino acid compound i.e. l-Prolinium Trichloroacetate single crystal has been synthesized and grown through slow evaporation solution growth technique. The lattice parameters obtained from single crystal X-ray diffraction were comparable with reported one. The diffraction pattern along the strain present inside the crystal was measured through powder X-ray diffraction technique. Its photoconductivity has also been observed, in which the traits of dark and photon current were recorded over a range of applied voltage. Further, birefringence was performed for the sample in which it was found that the crystal is having negative optical homogeneity character. The thermal transport parameters were calculated through photo-pyroelectric technique. Its resistance toward the laser beam was examined using laser damage threshold technique. The mechanical characteristics of the single crystal were determined on nanoscale using Oliver–Pharr method

Fermentation process for alcoholic beverage production from mahua (Madhuca indica J. F. Mel.) flowers

Mahua flowers are rich in sugar (68-72%), in addition to a number of minerals and one of the most important raw materials for alcohol fermentation. The present investigation was for the development of a non-distilled alcoholic beverage from Mahua flowers. Eighteen (18) treatment combinations consisting of two temperatures (25 and 30°C), three pH (4.0, 4.5 and 5.0) and three period of fermentation (7, 14 and 21 days) were used in the fermentation conditions. The maximum yield of ethanol (9.51 %) occurred at 25°C with pH 4.5 after 14 days of  fermentation of Mahua flower juice. The fermented non-distilled alcoholic beverage contained total sugar (8.83 mg/ml), reducing sugar (0.82 mg/ml), total soluble solids (6.37°Brix) titrable acidity (0.65 %), and volatile acidity (0.086%). Methanol was not detected at any stage of fermentation. The developed fermented alcoholic beverage had characteristic flavor and aroma of Mahua flowers with about 7 to 9% alcohol.Keywords: Madhuca indica, ethanol, reducing sugar, fermentation.African Journal of Biotechnology Vol. 12(39), pp. 5771-577

Spontaneous Rectal Perforation with Transanal Evisceration of the Small Bowel: A Rare Case Report

Transanal evisceration of the small bowel is a rare surgical emergency. Rectal perforation in such cases is usually due to an underlying rectal prolapse. We report a case of a middle aged (45 years) male with spontaneous rectal perforation and transanal evisceration of the small bowel. Approximately 150 cm of small bowel had eviscerated transanally and the patient required emergent abdominal exploration, reposition of the small bowel, and repair of the rectal perforation. Small bowel evisceration through the anal verge is an emergent condition and the aim was to prevent life threatening complications related to sepsis

Optical and Radiative Properties of Aerosols over Two Locations in the North-West Part of India during Premonsoon Season

The present study examines the aerosol characteristics over two locations in the northwest region of India (Dehradun and Patiala) during premonsoon season of 2013. The average mass concentrations of particulates (PM10; PM2.5; PM1) were found to be 118±36, 34±11, and 19±10 µgm−3 and 140±48, 30±13, and 14±06 µgm−3 over Dehradun and Patiala, respectively. The average aerosol optical depth (AOD500 nm) is observed to be 0.62±0.11 over Dehradun and 0.56±0.21 over Patiala. Ångström exponent and fine mode fraction show higher values over Dehradun as compared to Patiala. The average mass concentration of black carbon was found to be 3343±546 ngm−3 and 6335±760 ngm−3 over Dehradun and Patiala, respectively. The diurnal pattern of BC is mainly controlled by boundary layer dynamics and local anthropogenic activities over both the stations. The average single scattering albedo (SSA500 nm) exhibited low value over Patiala (0.83±0.01) in comparison to Dehradun (0.90±0.01), suggesting the abundance of absorbing type aerosols over Patiala. The average atmospheric aerosol radiative forcing is +37.34 Wm−2 and +54.81 Wm−2 over Dehradun and Patiala, respectively, leading to atmospheric heating rate of 1.0 K day−1 over Dehradun and 1.5 K day−1 over Patiala