A Study on the Necessity of Blended Learning in Classroom after the Pandemic Period

Rescheduling the usual elements of educational materials predominantly helps the learner to seek knowledge much easier than before. Developing e-sources is the next level of advancement in providing support for all learning categories. This study is an attempt to find out the necessity of blended learning in the classroom after the pandemic period .This study was conducted with a quantitative research design using a survey methodology to gather data about the learners’ interest among the blended learning from the sample of 50 undergraduate students in the state of Tamil Nadu, India. The necessity of updating to the present scenario is challenging the teachers to upgrade themselves and support the students. During the pandemic, the teaching and learning process is quite difficult to acquire education, but the integration of technology balances the mutuality. The core objective of this study is to examine the effects of the online mode of education among students and find out the requirements of blended learning for future education

Effect of Urbanization on Flooding: Adyar River a Case Study

Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchiv

A study to evaluate serum 25-hydroxy vitamin D3 and calcium levels in maternal and cord blood and their effect on pregnancy outcome

Background: To determine the prevalence of vitamin D deficiency among pregnant mothers and their neonates and to study the effect of vitamin D deficiency on maternal and perinatal outcome.Methods: This prospective cohort study conducted in a teaching hospital included 223 pregnant mothers and their offspring born in 2017. Detailed history was taken to ascertain the causes of vitamin D deficiency.   vitamin D3 and calcium levels were estimated in maternal and cord blood samples. To study the association between the vitamin D status and the various maternal and neonatal parameters.Results: 91.9 % of women were house wives involved in indoor activities. Pre-eclampsia and GDM were seen in 4.5% of cases each. 5.41% were obese and 84%  were of medium complexion,  and 8% were  dark. 93.7% were non- vegetarians,  and fish, egg and milk consumption was adequate in 61.3% , 64% and 71% respectively. Only 5.40% of women had adequate exposure to sunlight.  The mean birth weight was 3.08± 0.36 Kg. and 14 babies were admitted to NICU for neonatal asphyxia.77.40% had deficient levels of vitamin D  <20 ng/ml. Only four pregnant mothers (1.8%) had sufficient levels vitamin D. There was no statistically significant association between vitamin D deficiency and various maternal and neonatal parameters.Conclusions: This study has shown that the prevalence of vitamin D deficiency among south Indian pregnant mothers and their newborn is very high and the ways to improve the vitamin D status among pregnant mothers should be looked at

The Satellite Luminosity Function of M101 into the Ultra-Faint Dwarf Galaxy Regime

We have obtained deep Hubble Space Telescope (HST) imaging of four faint and ultra-faint dwarf galaxy candidates in the vicinity of M101 - Dw21, Dw22, Dw23 and Dw35, originally discovered by Bennet et al. (2017). Previous distance estimates using the surface brightness fluctuation technique have suggested that these four dwarf candidates are the only remaining viable M101 satellites identified in ground based imaging out to the virial radius of M101 (D~250 kpc). Advanced Camera for Surveys imaging of all four dwarf candidates shows no associated resolved stellar populations, indicating that they are thus background galaxies. We confirm this by generating simulated HST color magnitude diagrams of similar brightness dwarfs at the distance of M101. Our targets would have displayed clear, resolved red giant branches with dozens of stars if they had been associated with M101. With this information, we construct a satellite luminosity function for M101, which is 90% complete to M_V=-7.7 mag and 50% complete to M_V=-7.4 mag, that extends into the ultra-faint dwarf galaxy regime. The M101 system is remarkably poor in satellites in comparison to the Milky Way and M31, with only eight satellites down to an absolute magnitude of M_V=-7.7 mag, compared to the 14 and 26 seen in the Milky Way and M31, respectively. Further observations of Milky Way analogs are needed to understand the halo-to-halo scatter in their faint satellite systems, and connect them with expectations from cosmological simulations.Comment: 9 Pages, 3 Figures, 1 Table, Accepted by ApJ

An axiomatic approach to the non-linear theory of generalized functions and consistency of Laplace transforms

We offer an axiomatic definition of a differential algebra of generalized functions over an algebraically closed non-Archimedean field. This algebra is of Colombeau type in the sense that it contains a copy of the space of Schwartz distributions. We study the uniqueness of the objects we define and the consistency of our axioms. Next, we identify an inconsistency in the conventional Laplace transform theory. As an application we offer a free of contradictions alternative in the framework of our algebra of generalized functions. The article is aimed at mathematicians, physicists and engineers who are interested in the non-linear theory of generalized functions, but who are not necessarily familiar with the original Colombeau theory. We assume, however, some basic familiarity with the Schwartz theory of distributions.Comment: 23 page

WALLABY pre-pilot survey: ultra-diffuse galaxies in the Eridanus supergroup

We present a pilot study of the atomic neutral hydrogen gas (H I) content of ultra-diffuse galaxy (UDG) candidates. In this paper, we use the pre-pilot Eridanus field data from the Widefield ASKAP L-band Legacy All-sky Blind Survey to search for H I in UDG candidates found in the Systematically Measuring Ultra-diffuse Galaxies survey (SMUDGes). We narrow down to 78 SMUDGes UDG candidates within the maximum radial extents of the Eridanus subgroups for this study. Most SMUDGes UDGs candidates in this study have effective radii smaller than 1.5 kpc and thus fail to meet the defining size threshold. We only find one H I detection, which we classify as a low-surface-brightness dwarf. Six putative UDGs are H I-free. We show the overall distribution of SMUDGes UDG candidates on the size–luminosity relation and compare them with low-mass dwarfs on the atomic gas fraction versus stellar mass scaling relation. There is no correlation between gas-richness and colour indicating that colour is not the sole parameter determining their H I content. The evolutionary paths that drive galaxy morphological changes and UDG formation channels are likely the additional factors to affect the H I content of putative UDGs. The actual numbers of UDGs for the Eridanus and NGC 1332 subgroups are consistent with the predicted abundance of UDGs and the halo virial mass relation, except for the NGC 1407 subgroup, which has a smaller number of UDGs than the predicted number. Different group environments suggest that these putative UDGs are likely formed via the satellite accretion scenario

Collapsing Spaces, Colliding Places: Leveraging Constructs from Humanistic Geography to Explore Mathematics Classes

Humanistic geographers distinguish between space and place: “What begins as undifferentiated space becomes place as we get to know it better and endow it with value” (Tuan, 1977, page 6). In this essay, we seek to demonstrate how mathematics education researchers and mathematics instructors may find space and place illuminating for understanding important aspects of students’ learning experiences during the coronavirus pandemic—and possibly beyond. Specifically, after introducing the terms and relating them to the context of a university mathematics class, we exemplify how home and class places collided for three undergraduate mathematics students forced to deal with the abrupt transition to online education. We conclude by discussing implications of attending to space and place for designers and researchers of (pandemic) online instruction and make connections to how the pandemic and attending to space and place can serve as a catalyst for reshaping undergraduate mathematics education

Understanding the effect of saturated gases on catalytic performance of graphitic‐carbon nitride (g‐C₃N₄) for H₂O₂ generation and dye degradation in the presence of ultrasound

This paper examines the effect of saturated gases on H2O2 generation and dye degradation using graphitic‐carbon nitride (g‐C3N4) as a piezoelectric catalyst. A detailed catalytic evaluation was carried out using a double‐bath sono‐reactor, where the performance of g‐C3N4 for H2O2 production and degradation of rhodamine B and indigo carmine dyes was evaluated for a range of catalyst dosage levels and saturated gases. Specific gases were selected to understand their role in the sonochemical production of reactive oxygen species (ROS) and reactive nitrogen species (RNS) and to elucidate the potential catalytic mechanism. The use of an Ar‐O2 gas mixture led to the highest yield for H2O2 production and dye degradation due to the positive effect of argon and oxygen in the generation of H2O2 and reactive oxygen species, respectively. The presence of nitrogen in both air and in an Ar‐air mixture increased H2O2 generation since reactive nitrogen species improved the conversion of •OH into H2O2. In contrast, air and Ar‐air negatively influenced the generation of ROS, which resulted in a low rate of dye degradation. This work provides new insights of the mechanisms of sonochemical and piezocatalytic processes in the use of graphitic‐carbon nitride in catalytic applications.This article is protected by copyright. All rights reserved

Effect of feeding hydroponics maize fodder on digestibility of nutrients and milk production in lactating cows

Hydroponics maize fodder of 7 days growth was fed to 6 dairy cows divided into two equal groups (BW 442 kg; avg. milk yield 6.0 kg). Animals were offered 5 kg concentrate mixture and ad lib. jowar straw along with either 15 kg fresh hydroponics maize fodder (T-HF) or conventional napier bajra hybrid (NBH) green fodder (T-CF) for 68 days. The hydroponics maize fodder (HMF) had higher CP (13.30 vs 11.14, %), EE (3.27 vs 2.20, %), NFE (75.32 vs 53.54, %) and lower CF (6.37 vs 22.25, %), TA (1.75 vs 9.84, %) and AIA (0.57 vs 1.03, %) than NBH. HMF intake was low (0.59 kg DM/d) than NBH (1.19 kg DM/ d) by the cows. However, the DMI (2.05 and 2.17 %) was similar in both the groups. Digestibility of CP (72.46 vs 68.86, %) and CF (59.21 vs 53.25, %) was higher (P0.05) in the CP (13.29 vs 12.48, %) and TDN (68.52 vs 64, %) content was non- significant. There was 13.7% increase in the milk yield of T-HF (4.64, kg/d) than the T-CF group (4.08 kg/d). The feed conversion ratio of DM (2.12 vs 2.37), CP (0.29 vs 0.30) and TDN (1.45 vs 1.52) to produce a kg milk was better in the T-HF than the T-CF group. There was higher net profit of Rs. 12.67/- per cow/d on feeding HMF. It can be concluded that feeding of HMF to lactating cows increased the digestibility of nutrients and milk production leading to increase in net profit

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Not AvailableThe potential health benefits of sprouted grains are well known; Sprouted grains are good sources of chlorophyll and contain grass juice factor that improves the performance of the livestock (Sneath and Mclntosh 2003, Shipard 2005).Feeding of quality green fodder to dairy animals is highly essential to maintain the productivity, fertility and economical viability of the farm. The major factors responsible for the unavailability of green fodder are scarcity of land due to small land holding size, shortage of water or saline water and labour (Naik et al. 2013). In this scenario, supplementation of sprouted grains in the ration of dairy animals is coming up as a viable alternate technology to conventional green fodder for the livestock farmers (Naik et al. 2015). However, only a few reports are available on the feeding value of the sprouted maize grains to the dairy animals in India (Naik et al. 2012, 2014).Therefore, an experiment was conducted to find out the effect of feeding sprouted maize grains on digestibility of nutrients in heifers.Not Availabl