The nonzero neutrino mass and nature of Dark Matter (DM) is still unknown within the Standard Model (SM). In 2021, there was a 4.2σ discrepancy with SM results in the measurement of muon magnetic ...moment reported by Fermilab. Recently, Fermilab released its precise results for muon’s magnetic moment, and it shows a 5.1σ discrepancy. In this work, we study the corelation between neutrino masses, muon (g − 2) anomaly, and Dark Matter within a framework based on the Z4 extension of the scotogenic model, in which the neutrino masses are generated at one loop level. We extend the model with a vector-like lepton (VLL) triplet in order to explain muon (g − 2). Here, the coupling of VLL triplet ψT to inert doublet η provides a positive contribution to muon anomalous magnetic moment. We also studied the DM phenomenology of ψT by considering the neutral component of ψT as the lightest DM candidate. We show that, for the mass of the VLL triplet Mψ in TeV scale, the model can well explain muon (g − 2) anomaly and also gives required relic density.
Introduction
Research has found that low mood including sadness and hopelessness is an important factor for decreased awareness in one’s oral health and lowered frequency of visit to the dental ...office, this relationship is not well studied in national representative samples. Poor mental wellbeing can lead to poor oral health.
Objectives
Aim is to examine the relationship between feeling sad or hopeless and awareness for dental care.
Methods
Data were obtained from the Youth Risk Behavior Surveillance Survey (YRBS-CDC), USA, for years 2009-2017. All ages from 12 to 18 years, feeling sad or hopeless and dental visits were identified. Univariable relationship between feeling sad or hopeless (>2 weeks in the past year) and dental office visits for all dental care (during the past 12 months, 12-24 months, >24 months, and never) was evaluated using chi-square test.
Results
Out of a total of 53,098 youths, 30.5% of youths were feeling sad or hopeless. Within the youths feeling sad or hopeless, the prevalence of youth who never received dental care was higher at 37.1% in comparison to youths who received dental care >24 months ago 36.4%,12-24 months 33.7%, and visited the dental office in the past 12 months 28.9%. (p<0.0001). In youths who had dental care in the last 12 months, the prevalence of sadness or hopelessness was lower at 65% vs 70%, while it was higher in youths who had never had dental care at 3.3% vs 1.7%.
Conclusions
Further research is warranted to evaluate reduced oral health care awareness among participants feeling sad or hopeless.
The paper evaluates the measurement uncertainty in realizing the secondary vibration standard at CSIR-National Physical Laboratory, India, and presents a comparison of the measurement uncertainty of ...secondary standard with that of primary vibration standard. The relative expanded measurement uncertainty of 0.80% to 2.2% in frequency range of 5 Hz to 10 kHz is evaluated. The measurement uncertainty so calculated is verified by comparison with the results from primary vibration calibration standard of CSIR-National Physical Laboratory, New Delhi, and SPEKTRA Schwingungstechnik und Akustik GmbH Dresden, Germany primary calibrations. The study recommends calibrating the back-to-back accelerometer with minimal uncertainty by using a primary calibrated single-ended accelerometer mounted on the top of the back-to-back transducer.The paper serves a guiding document to the calibration laboratories, industries and other stake holders in India to understand the concept of traceability in vibration measurements and formulation of uncertainty budget as per the international standard.
The azoospermia factor (AZF) region on the Y chromosome consists of genes required for spermatogenesis. Among the three subregions, the AZFc subregion located at the distal portion of AZF is the ...driver for genetic variation in Y chromosome. The candidate gene of AZFc is known as deleted in azoospermia gene, which is studied with interest because it is involved in germ cell development and most frequently deleted genes leading to oligozoospermia and azoospermia. Recently, two partial deletions in AZFc gr/gr and b2/b3 are characterized at the molecular level which showed homologous recombination between amplicons, affecting spermatogenesis process. There are novel methods and commercially available kits for accurate screening and characterization of microdeletions. It is important to detect the AZFc microdeletions through genetic screening and counseling those infertile men who planned to avail assisted reproduction techniques such as undergoing intracytoplasmic sperm injection or in vitro fertilization.
► A study evaluated the effect of two rice cultivars and different herbicides on weed growth and rice yield under dry-seeded rice. ► The hybrid cultivar had 11–12% higher yield than the inbred ...cultivar. ► Weed competition in the control plots lowered yield by 39–41%. ► Herbicide-treated plots had similar grain yield and the yield in these plots was 76–86% of the yield of the weed-free plots.
Because of the rapid depletion of water and shortage of labor, farmers in many Asian regions are moving from puddled transplanted rice to dry-seeded rice. However, weed infestations are a serious problem in dry-seeded rice systems because dry cultivation practices and aerobic soil conditions are conducive to the germination and growth of weeds. A field study was conducted in the wet season of 2011 and the dry season of 2012 to evaluate the effect of two rice cultivars and different herbicides on weed growth and rice yield under dry-seeded rice. The rice cultivars (one hybrid and one inbred) were dry-seeded at 20–22kgseedha−1 with a combine drill fitted with knife-point openers. Rice plant densities ranged from 44 to 56plantsm−2 in the first season and from 67 to 77plantsm−2 in the second season. Weed density, weed biomass, rice panicle number, and rice yield were not influenced by the cultivars; however, they were strongly influenced by the weed control treatments. In terms of percent, the hybrid cultivar had 11–12% higher yield than the inbred cultivar. Weed competition in the control plots (one hand-weeding) lowered yield by 39–41% compared with the weed-free plots. All herbicides significantly reduced weed biomass compared with the control treatment, providing 75–93% weed control. Herbicide-treated plots had similar grain yield and the yield in these plots was 76–86% of the yield of the weed-free plots (4.2–4.4tha−1), suggesting further scope to improve rice yield in dry-seeded systems. Compared with the control treatment (one hand-weeding), herbicide-treated plots had 27–41% greater yield. Future research in dry-seeded rice systems should focus on the integration of appropriate agronomic practices with herbicide application timing and combinations to improve the effectiveness of weed management practices.
Microbial alkaline proteases dominate the worldwide enzyme market, accounting for a two-thirds share of the detergent industry. Although protease production is an inherent property of all organisms, ...only those microbes that produce a substantial amount of extracellular protease have been exploited commercially. Of these, strains of Bacillus sp. dominate the industrial sector. To develop an efficient enzyme-based process for the industry, prior knowledge of various fermentation parameters, purification strategies and properties of the biocatalyst is of utmost importance. Besides these, the method of measurement of proteolytic potential, the selection of the substrate and the assay protocol depends upon the ultimate industrial application. A large array of assay protocols are available in the literature; however, with the predominance of molecular approaches for the generation of better biocatalysts, the search for newer substrates and assay protocols that can be conducted at micro/nano-scale are becoming important. Fermentation of proteases is regulated by varying the C/N ratio and can be scaled-up using fed-batch, continuous or chemostat approaches by prolonging the stationary phase of the culture. The conventional purification strategy employed, involving e.g., concentration, chromatographic steps, or aqueous two-phase systems, depends on the properties of the protease in question. Alkaline proteases useful for detergent applications are mostly active in the pH range 8-12 and at temperatures between 50 and 70 degrees C, with a few exceptions of extreme pH optima up to pH 13 and activity at temperatures up to 80-90 degrees C. Alkaline proteases mostly have their isoelectric points near to their pH optimum in the range of 8-11. Several industrially important proteases have been subjected to crystallization to extensively study their molecular homology and three-dimensional structures.
Traumatic brain injury (TBI) is a serious public health concern and a major cause of death and disability worldwide. Each year, an estimated 1.7 million Americans sustain TBI of which ~52,000 people ...die, ~275,000 people are hospitalized and 1,365,000 people are treated as emergency outpatients. Currently there are ~5.3 million Americans living with TBI. TBI is more of a disease process than of an event that is associated with immediate and long-term sensomotor, psychological and cognitive impairments. TBI is the best known established epigenetic risk factor for later development of neurodegenerative diseases and dementia. People sustaining TBI are ~4 times more likely to develop dementia at a later stage than people without TBI. Single brain injury is linked to later development of symptoms resembling Alzheimer's disease while repetitive brain injuries are linked to later development of chronic traumatic encephalopathy (CTE) and/or Dementia Pugilistica (DP). Furthermore, genetic background of ß-amyloid precursor protein (APP), Apolipoprotein E (ApoE), presenilin (PS) and neprilysin (NEP) genes is associated with exacerbation of neurodegenerative process after TBI. This review encompasses acute effects and chronic neurodegenerative consequences after TBI.
Celotno besedilo
Dostopno za:
DOBA, IZUM, KILJ, NUK, PILJ, PNG, SAZU, UILJ, UKNU, UL, UM, UPUK
In the scenario with four generation quarks and leptons and using a 3+1 neutrino model having one sterile and the three standard active neutrinos with a 4×4 unitary transformation matrix, UPMNS4, we ...perform a model-based analysis using the latest global data and determine bounds on the sterile neutrino parameters i.e., the neutrino mixing angles. Motivated by our previous results, where, in a quark-lepton complementarity (QLC) model we predicted the values of θ13PMNS=9−2+2° and θ23PMNS=40.60−0.3+0.1°. In the QLC model the nontrivial correlation between CKM4 and PMNS4 mixing matrix is given by the correlation matrix Vc4. Monte Carlo simulations are performed to estimate the texture of Vc4 followed by the calculation of PMNS4 using the equation, UPMNS4=UCKM4·ψ4−1·Vc4, where ψ4 is a diagonal phase matrix. The sterile neutrino mixing angles, θ14PMNS, θ24PMNS and θ34PMNS are assumed to be freely varying between 0−π/4 and obtained results which are consistent with the data available from various experiments, like NovA, MINOS, SuperK, Ice Cube-DeepCore. In further investigation, we analytically obtain approximately similar ranges for various neutrino mixing parameters Uμ42 and Uτ42.
We carry out the Becchi-Rouet-Stora-Tyutin (BRST) quantization of the one 0+1-dimensional (1D) model of a free massive spinning relativistic particle (i.e., a supersymmetric system) by exploiting its ...classical infinitesimal and continuous reparameterization symmetry transformations. We use the modified Bonora-Tonin (BT) supervariable approach (MBTSA) to BRST formalism to obtain the nilpotent (anti-)BRST symmetry transformations of the target space variables and the (anti-)BRST invariant Curci-Ferrari- (CF-) type restriction for the 1D model of our supersymmetric (SUSY) system. The nilpotent (anti-)BRST symmetry transformations for other variables of our model are derived by using the (anti-)chiral supervariable approach (ACSA) to BRST formalism. Within the framework of the latter, we have shown the existence of the CF-type restriction by proving the (i) symmetry invariance of the coupled Lagrangians and (ii) the absolute anticommutativity property of the conserved (anti-)BRST charges. The application of the MBTSA to a physical SUSY system (i.e., a 1D model of a massive spinning particle) is a novel result in our present endeavor. In the application of ACSA, we have considered only the (anti-)chiral super expansions of the supervariables. Hence, the observation of the absolute anticommutativity of the (anti-)BRST charges is a novel result. The CF-type restriction is universal in nature as it turns out to be the same for the SUSY and non-SUSY reparameterization (i.e., 1D diffeomorphism) invariant models of the (non-)relativistic particles.
The paper presents a retrospective and prospective view of noise mapping strategy followed across the globe as a diagnostic tool for controlling the noise pollution in urban cities. The concept of ...noise mapping is primitive in India and thus developing the noise maps is really a great challenge for big metropolitan cities of India. The paper discusses the benefits associated, input parameters required, methodology, sampling and interpolation techniques used, noise control action plans and challenges ahead for the development of strategic noise maps. The pros and cons associated with noise mapping and validity of principal traffic noise models in India are presented. Also, various technical aspects pertaining to noise mapping are clarified in Indian perspectives based on the standard operating procedures used internationally. This paper recommends a national policy framework of noise mapping and control for Self-Reliant India (Aatmanirbhar Bharat) and shall serve as a guiding document to all the stake holders for noise mapping of the larger parts of the country.
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