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A Mathematical Model For Transport And Growth Of Microbes In Unsaturated Porous Soil, Harihar Khanal, Andrei Ludu, Ramesh Chandra Timsina, Kedar Nath Uprety

Publications

In this work, we develop a mathematical model for transport and growth of microbes by natural (rain) water infiltration and flow through unsaturated porous soil along the vertical direction under gravity and capillarity by coupling a system of advection diffusion equations (for concentration of microbes and their growth-limiting substrate) with the Richards equation. (e model takes into consideration several major physical, chemical, and biological mechanisms. (e resulting coupled system of PDEs together with their boundary conditions is highly nonlinear and complicated to solve analytically. We present both a partial analytic approach towards solving the nonlinear system and finding the main …

Scorpions Of The Horn Of Africa (Arachnida: Scorpiones). Part Xxvii. Lanzatus Huluul Sp. N. From Somaliland (Buthidae), František Kovařík, Graeme Lowe

Euscorpius

The rare Horn of Africa buthid genus Lanzatus Kovařík, 2001 was newly collected in Somaliland in two localities. We describe a new species Lanzatus huluul sp. n. fully illustrated with color photos showing its morphology, habitus, hemispermatophore and collection areas.

Remediation Of Pollution In A River By Releasing Clean Water, Ahmed Saleh, Fayez N. Ibrahim, Mohamed Kh. Hadhouda

Information Sciences Letters

Analytical solution has been obtained for one-dimensional advection-diffusion equation with constant coefficients by using Laplace transformation. Also numerical solution has been obtained by using explicit finite difference scheme. In this paper, the initial condition and the boundary condition at the source of pollution (x = 0) were applied to describe the exponential variation in pollutant concentration. Impacts of different parameters controlling the pollutant dispersion have been studied separately with the help of graphs. This publication proved mathematically the fact that the high concentration of pollutant can be reduced by releasing clean water discharges from barrage in a river. For a …

A New Fractional Differential Approach: A Combination Between Usual Derivative And A Fractional Differential Operator Without Singular Kernel, Gustavo Asumu Mboro Nchama, Leandro Daniel Lau Alfonso

Information Sciences Letters

In this paper, authors introduce a new fractional differential order operator given as a combination between the usual derivative and a fractional differential operator without singular kernel. The new approach is defined through a fractional integral order and based on the Caputo viewpoint. Some properties are given to illustrate the results. Also calculus of integral of an interesting function is illustrated.

Dynamical Analysis Of A Fractional Sirs Model On Complex Heterogeneous Networks, H. A. A. El-Saka, A. A. M. Arafa, Riyad Alshalabi, M. I. Gouda

Information Sciences Letters

In this paper, a fractional SIRS model on heterogeneous complex networks is introduced. The asymptotic local and global stability of equilibrium points are studied, numerical simulation is used to support our theoretical results and show the effect of fractional order q and the influence of connectivity between individuals which represented as ψ(t).

The Effects Of Fractional Derivatives Of Bio-Heat Model In Living Tissues Using Analytical-Numerical Method, Aboelnour Abdalla, Ibrahim Abbas, Hussien Sapoor

Information Sciences Letters

In this article, the fractional order bioheat model of heat transfer is used to offer a new interpretation to investigate the thermal damage in living tissues under laser irradiations. The effects of thermal relaxation time and the fractional order parameter on the temperature of living tissues and the thermal damages are studied. The basic equation is formulated in the domain of Laplace transform to get the analytical solution. The numerical solution is obtained by using the implicit finite difference method (IFDM). The efficiency and accuracy of this method have been verified using numerical example. Considering the thermophysical properties of living …

Fundamentals And Ideological Content Of The Creation Of Y.V. Goethe's "West-East Collection Of Poems", Muattar Makhsatilloevna Makhmudova

Scientific reports of Bukhara State University

Background. The article tells about the work of the famous German writer Johann Wolfgang Goethe and about the history of the creation of the famous "West-Eastern Divan". Methods. The famous German writer Johann Wolfgang Goethe (1749-1832) was a poet, playwright, literary critic, jurist, orientalist, historian and philosopher, painter, theater critic, naturalist, and scientist and statesman who made discoveries in biology and mineralogy. He was one of the first to use the term "world literature." His 143-volume artistic and scientific legacy includes his works such as Faust, The Sufferings of Young Werther, West-east collection of poems, Muhammad (peace and blessings of …

Aspect Of Universal Values And Their Linguistic Analysis, Navruza Yakhyayeva

Scientific reports of Bukhara State University

Abstract. The following research focuses on universal value analyses and lingvocultural analysis. It primarily focuses on the innovation, in that the concept of linguistic analysis has been combined with the concept of text. Furthermore, this method raises the work's theoretical level. These values therefore have an impact on how citizens are motivated to act as citizens and how their acts as global citizens are validated. Values serve as social action regulators. According to some researchers, education tends to lead to emancipation. "Universal value" refers to uncritically copying the value system of another country, supporting so-called "western" "freedom, democracy, equality, and …

Heterologous Phasin Expression In Rhodopseudomonas Palustris Cga009 For Bioplastic Production From Lignocellulosic Biomass, Brandi Brown, Cheryl Immethun, Adil Alsiyabi, Dianna Long, Mark Wilkins, Rajib Saha

Department of Chemical and Biomolecular Engineering: Faculty Publications

Rhodopseudomonas palustris CGA009 is a metabolically robust microbe that can utilize lignin breakdown products to produce polyhydroxyalkanoates (PHAs), biopolymers with the potential to replace conventional plastics. Our recent efforts suggest PHA granule formation is a limiting factor for maximum production of the bioplastic poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) by R. palustris. The Phap1 phasin (phaP1) from the PHBproducing model bacterium Cupriavidus necator H16 was expressed in R. palustris with the aim of overproducing PHBV from the lignin breakdown product p-coumarate by fostering smaller and more abundant granules. Expression of phaP1 yielded PHBV production from R. palustris aerobically (0.7 g/L), which does …

Synthesis, Bio-Evaluation And Quantum Chemical Studies Of Some Coumarin Derivatives, Samar M. Shakir, Yasameen K. Al-Majedy

Journal of Applied Sciences and Nanotechnology

Coumarins are oxygen heterocyclic compounds that exist naturally and have a wide range of pharmacological properties, making them ideal as lead compounds for developing more powerful analogs. The modification of 4-methyl, 7-hydroxycoumarin by different reaction steps was done in this study to yield target compounds. They were characterized by different spectroscopic techniques (FT-IR and NMR), melting point and a thin layer chromatography. The microbiological activity of these compounds was investigated in a variety of bacterial and fungal species. Since the newly synthesized derivatives contain a variety of functional groups and may be microbiologically active, so the microbiological function of these …

Teaching Applied Exercise Physiology Using A Prototype Energy Expenditure Measurement Device, James W. Navalta, Dustin W. Davis, Bryson Carrier, Jacquelyn V.L Sertic, Peyton Cater

Kinesiology and Nutrition Sciences Faculty Research

Undergraduate and graduate students in courses designed to introduce research techniques in exercise physiology were provided the novel opportunity through Project-based Learning (PBL) to utilize a prototype device to measure energy expenditure (EE). This report summarizes how EE measurements were incorporated via PBL into course-required experiments and determined perceived understanding of exercise and metabolism. Undergraduate experiments included measurement of EE following high intensity cycling preceded by a motivating yell, and EE after upper-body and lower-body exercise performed at simulated altitude. Graduate experiments included evaluation of the EE cost of skipping, and EE during longboard skateboarding. Undergraduate students perceived greater increases …

Initial Effects Of Deforestation On Herbaceous Species Composition In Grassy Woodlands Of The Northern Tablelands, Nsw Australia, Chris R. Chilcott, N. Reid, R. D. B. Whalley

IGC Proceedings (1977-2023)

Limited information on the initial effects of clearing and thinning on herbaceous vegetation of grassy temperate eucalyptus forests exists. The aim of this investigation is to study the initial changes in species composition following clearing and thinning. A deforestation experiment was established where clearing, thinning of 50% of canopy cover and control treatments were established. In the open-forests, patterns in herbaceous species composition were strongly influenced by the presence of trees, with weeping wheat grass (Microlaena stipoides) dominant, whereas wiregrass (Aristida ramosa) dominated interspaces and canopy gaps. Immediately following clearing, significant changes in the herbaceous species …

The Influence Of Large Animal Diversity In Grazed Ecosystems, M. G. Murray, D. R. Baird

IGC Proceedings (1977-2023)

Field observations in the Serengeti National Park, Tanzania have revealed several modes of grazing system, including migration, sustained-yield grazing and grazing succession which contribute on the one hand to ecological separation of herbivores by habitat choice, but on the other hand to positive association of species on wet season pastures known as hot spots. Drawing from results of experimental field studies, we consider what is known about resource competition and facilitation, the two key ecological processes underlying these grazing systems, and specify the shape of the relationship between species richness and pasture height that is predicted depending on which process …

Grassland Use And Plant Diversity In Grazed Ecosystems, V. A. Deregibus, E. J. Jacobo, O. E. Ansin

IGC Proceedings (1977-2023)

Earth biomes are being deconstructed, through unprecedented rates of species disappearance or invasion (McCann 2000). This, added to the threat of global environmental change and changes in values of a developed society, caused that biodiversity became a topic that has captured the attention of the public as well as the scientific community. Such concern on the importance of biodiversity is based in four basic reasons clearly described by West (1993): (i) morality, that aims for the protection of species; (ii) aesthetics, as people desire to see and appreciate the living parts of nature; (iii) economics and, (iv) the array …

The Effect Of Phosphorus Fertilization On Botanical Composition And Production In Temperate Pastures In Argentina, E. J. Jacobo, A. M. Rodríguez, M. F. Garbulsky, P. Scardoni, V. A. Deregibus

IGC Proceedings (1977-2023)

The objective of this paper is to evaluate floristic changes and above-ground primary production in native grasslands and old pastures dominated by tall fescue (Festuca arundinacea) that were fertilized with different levels of phosphorus. For this, aerial biomass was sequentially harvested from November 1998 to October 1999. Above-ground production of native grassland more than doubled (from 3000 to 7300 kg DM/ha) with the highest level of P through the increment of three naturalized species: the winter annual ryegrass (Lolium multiflorum) and two legumes: white clover (Trifolium repens) and lotus (Lotus corniculatus). In …

Determining Pasture Biodiversity With Nirs, K. J. Moore, D. J. Barker

IGC Proceedings (1977-2023)

Research was conducted to assess the potential of using near infrared reflectance spectroscopy (NIRS) to determine botanical composition and measures of species diversity in pasture samples. Samples were collected from six hill country (Ballantrae) and two lowland (Aorangi) pastures in New Zealand. Samples were collected in summer (March) and Autumn (May) and subsamples were dissected to determine botanical composition and species diversity. Measures of diversity included species richness, Shannon’s index, and Simpson’s index. Reflectance data were collected from a second subsample that had been dried and finely ground. Calibrations were developed using modified partial least squares. Acceptable calibration equations were …

Vegetation Changes In Southeast Australian Temperate Grasslands, D. L. Garden, T. P. Bolger

IGC Proceedings (1977-2023)

In temperate areas of southeast Australia, the combined effects of tree clearing, grazing, application of fertilizer and the introduction of exotic species have modified the original grasslands. This paper describes these changes and attempts to explain them in terms of ecological principles derived from North American grasslands. Stability of the original grasslands appears to have been due to the lack of disturbance and the slow rates of nitrogen (N) cycling within them. Increased N cycling after disturbance has allowed invasion of species better adapted to higher N status, particularly exotic annual grasses and weeds. The present composition of grasslands, in …

The Effects Of Grazing Management And Fertilization On Grassland Diversity And Productivity, Warren Mcg. King, David R. Kemp

IGC Proceedings (1977-2023)

The effects of management practices on plant species diversity and productivity within a naturalised grassland was studied as part of a large-scale experiment designed to investigate issues of sustainability in temperate Australia. Fertiliser increased the production but reduced the diversity of the sward. The main decline was in exotic weed species. Strategic grazing resulted in a small increase in pasture diversity but a reduction in productivity. There was a consistent decline in diversity as productivity increased, across all treatments.

Pasture Dynamics After Sodseeding Cool Season Species With Or Without Glyphosate In Subtropical Natural Grasslands, Luciana M. Rizo, E. L. Moojen, Fernando L. F. De Quadros, F. E. Schlick, F. L. Correa

IGC Proceedings (1977-2023)

This trial was conducted to evaluate vegetation dynamics of natural grasslands fertilized and sodseeded with the cool season species Italian ryegrass (Lolium multiflorum), white clover (Trifolium repens) and birdsfoot trefoil (Lotus corniculatus) with or without glyphosate. Treatments that included herbicide spraying on natural vegetation caused a substitution of perennial grasses by undesirable species, and did not show a significant contribution of introduced species. Andropogon lateralis, Paspalum notatum, Paspalum dilatatum and Paspalum plicatulum almost disappeared, and were replaced by Chaptalia nutans and Apium spp, among others.

Soil Biodiversity, Root Herbivory And Carbon And Nitrogen Cycling In Grassland Soils, R. Cook, L. A. Dawson, A. C. Gange, S. J. Grayston, P. J. Murray, A. M. Treonis

IGC Proceedings (1977-2023)

This paper describes research on the relationships between grassland management practices and the diversity of biological communities in soil. Observations are being made in field trials with applications of nitrogen and lime and of insecticide to an original diverse sward and to a single species grass re-seed. The treatments are designed to produce different degrees of diversity in communities of soil animals and microbes. Assessments are being made over three years of the effects on the populations, activity and diversity of root-feeding animals, arbuscular mycorrhizal fungi, soil bacteria, fungi and micro fauna, including nonplant feeding nematodes. Associated laboratory experiments assess …

Core Collection Approaches And Genetic Diversity In Flemingia Macrophylla, R. Schultze‐Kraft, M. Peters

IGC Proceedings (1977-2023)

Core collections are a useful means to optimise the management, including conservation, of forage germplasm collections. Such optimisation is warranted in view of increasingly limited research resources. As there are several potential options to create core collections, a project is presented in which three approaches are compared: (i) based on germplasm origin information; (ii) genetic diversity assessment by agronomic characterisation/evaluation; and (iii) DNA markers. As example-species for the project, the tropical legume shrub Flemingia macrophylla is selected because of its particular multiple-use potential in smallholder production systems. An important diversity descriptor is the content of tannins influencing feed and litter …

Variation Of Agronomic Traits In A World Collection Of Vetch (Vicia Sativa L.), G. Pacucci, C. Troccoli

IGC Proceedings (1977-2023)

More than 850 accessions of vetch (Vicia sativa L.) representing 16 countries were obtained from the Italian Germplasm Institute and grown in a Southern Italy environment. The five following quantitative characters were analysed: days to harvest, plant dry weight, number of pods per plant, seed yield per plant, and seed yield per pod. The frequencies of various phenotypes were examined for total world collection and for each country in which there was a sufficient number of accessions. Wide phenotypic variability was observed for all characters, and usually within each country. The Shannon–Weaver diversity index (H') was used to examine …

Environmental Impacts Of Seawater Desalination On The Marine Environment In The Kingdom Of Bahrain, Waleed Al-Zubari, Alaa Elsadek, Mohamed Khadim

Emirates Journal for Engineering Research

The main water planning and management challenge facing Bahrain is in how to balance water availability and water use on a long-term basis in the face of increasing demands under the least economic and environmental costs and without endangering socio-economic development. To meet escalating municipal water demands desalination is becoming inevitable, which is associated with substantial financial, economic, and environmental costs. In this research, the environmental impact of seawater desalination on the surrounding marine environment is assessed at a government-owned MSF desalination plant (Sitra Power and Water Station (SPWS)). The assessment used a number of environmental indicators, namely temperature and …

Novel Biomarkers Of Ciliary Extracellular Vesicles Interact With Ciliopathy And Alzheimer’S Associated Proteins, Ashraf M. Mohieldin, Amal Alachkar, John R. Yates Iii, Surya M. Nauli

Pharmacy Faculty Articles and Research

Ciliary extracellular vesicles (ciEVs), released from primary cilia, contain functional proteins that play an important role in cilia structure and functions. We have recently shown that ciEVs and cytosolic extracellular vesicles (cyEVs) have unique and distinct biomarkers. While ciEV biomarkers have shown some interactions with known ciliary proteins, little is known about the interaction of ciEV proteins with proteins involved in ciliopathy and neurodegenerative disorders. Here, we reveal for the first time the protein-protein interaction (PPI) between the top five ciEVs biomarkers with ciliopathy and Alzheimer disease (AD) proteins. These results support the growing evidence of the critical physiological roles …

Beauty Pageant Dalam Persfektif Semiotik Komunikasi Visual, Dony Hermawan

Jurnal Sosial Humaniora Terapan

This research is a semiotic study of visual communication that is analyzing the meaning of signs or symbols in the world beauty contest. The beauty pageant itself has become a spectacle event that attracts millions of viewers when beautiful woman who represents her country walks gracefully on the world-class stage. Behind this phenomenal competition, there are no many people realize that there are various communication symbols that delivers by the participants, both verbal and non-verbal, especially in the semiotics topic. By using the method of studying literature on the study of semiotics, in the world beauty contests, the expected meaning …

Through The Lens: Youth Experiences With Cancer In Rural Appalachian Kentucky Using Photovoice, Katie Gaines, Courtney Martin, Chris Prichard, Nathan L. Vanderford

Markey Cancer Center Faculty Publications

Rural Appalachian Kentucky experiences disproportionately high cancer incidence and mortality rates. This cancer burden is due to social determinants of health and cultural factors prominent in the region. The firsthand experiences of community members—especially young people—can highlight these factors and identify areas for improvement. The purpose of this study was to encourage Appalachian Kentucky youth to consider determinants of cancer and visualize the effects that cancer has on their families or communities by asking them to take photographs of cancer-related objects around them. Content analysis was performed on 238 photographs submitted by 25 students, and photographs were organized into themes, …

A Retrospective Study Of Disparities In An Academic Ophthalmic Emergency Department, Colleen Szypko, Nathan Hall, Thong Ta, Matthew F. Gardiner, Alice C. Lorch

Journal of Academic Ophthalmology

Abstract

Purpose Emergency medicine is a common access point to health care; disparities in this care by demographic characteristics, including race and ethnicity, may affect outcomes. The Massachusetts Eye and Ear (MEE) Emergency Department (ED) is a subspecialty emergency department; data from this site can be utilized to better understand social determinants of quality ophthalmic care.

Design This is a retrospective cross sectional cohort study in the MEE ED examining patient visits from June 1, 2016 to June 30, 2019.

Methods Using the electronic medical record system, all unique visits were identified between June 1, 2016 and June 30, 2019 …

You Are The Father! An Argument For Court-Ordered Prenatal Paternity Testing And Child Support In Tennessee, Michael Stooksbury

Lincoln Memorial University Law Review Archive

As long as the concept of monogamy has existed, humans have looked for ways to escape it. Children, a natural consequence of sexual activity, are often negatively affected by the lack of a supportive family structure in single-family households. To correct this, courts often order child support to be paid from one parent to another, usually through the State. This is why paternity determinations are an important court function. One aspect courts have neglected, however, is child support for expecting mothers during pregnancy. Prenatal child support for expecting mothers would help alleviate some of the prenatal costs and make the …

The Energetics Of Uniquely Human Subsistence Strategies, Thomas S. Kraft, Vivek V. Venkataraman, Ian J. Wallace, Alyssa N. Crittenden, Nicholas B. Holowka, Jonathan Stieglitz, Jacob Harris, David A. Raichlen, Brian Wood, Michael Gurven, Herman Pontzer

Anthropology Faculty Research

The suite of derived human traits, including enlarged brains, elevated fertility rates, and long developmental periods and life spans, imposes extraordinarily high energetic costs relative to other great apes. How do human subsistence strategies accommodate our expanded energy budgets? We found that relative to other great apes, human hunter-gatherers and subsistence farmers spend more energy but less time on subsistence, acquire substantially more energy per hour, and achieve similar energy efficiencies. These findings revise our understanding of human energetic evolution by indicating that humans afford expanded energy budgets primarily by increasing rates of energy acquisition, not through energy-saving adaptations such …

The Effect Of Parental Thermal Environment On Maternal Investment And Offspring Performance, Bianca Allegra Parodi

The Plymouth Student Scientist

As heat wave phenomena and thermal variance events increase in frequency and intensity, it is important to understand how the effect of exposure to constant elevated temperatures on fitness differs from the one of thermal fluctuations. This study aims to investigate how parental thermal environment affects maternal fitness measured as maternal investment and offspring performance. A wild population of the amphipod Gammarus chevreuxi was exposed to constant (15, 20 and 25 °C) or fluctuating (variable between 15 and 25 °C) thermal regimes and allowed to mate. Immediately after fertilization, mothers carrying eggs were transferred to common garden conditions (15 °C), …