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215,609 full-text articles. Page 6 of 6064.

The Influence Of Tree Thinning On Grass Dry Matter Yield, With And Without Grazing By Herbivore Game Species In The Marakele Park, South Africa, G. N. Smit, F. C. Pienaar 2020 University of the Free State, South Africa

The Influence Of Tree Thinning On Grass Dry Matter Yield, With And Without Grazing By Herbivore Game Species In The Marakele Park, South Africa, G. N. Smit, F. C. Pienaar

International Grassland Congress Proceedings

No abstract provided.


Grazing Disturbance A Benefit To Species Diversity In Re‐Established Native Grass Stands, Michael P. Schellenberg, Alan D. Iwaasa 2020 Agriculture and Agri-Food Canada, Canada

Grazing Disturbance A Benefit To Species Diversity In Re‐Established Native Grass Stands, Michael P. Schellenberg, Alan D. Iwaasa

International Grassland Congress Proceedings

No abstract provided.


Sensitivity Enhancement Of Silicon-On-Insulator Multipath Ring Resonator Using Gold Nanodisk For Sensor Application, Gabriel Dicky, Shidqie Taufiqurrahman, Topik Teguh Estu, Yusuf Nur Wijayanto, Robeth Viktoria Manurung, Dadin Mahmudin, Pamungkas Daud 2020 Lab-on-Chip Group, Biomedical Engineering Department, School of Electronics and Informatics, Bandung Institute of Technology, Bandung 40132, Indonesia

Sensitivity Enhancement Of Silicon-On-Insulator Multipath Ring Resonator Using Gold Nanodisk For Sensor Application, Gabriel Dicky, Shidqie Taufiqurrahman, Topik Teguh Estu, Yusuf Nur Wijayanto, Robeth Viktoria Manurung, Dadin Mahmudin, Pamungkas Daud

Makara Journal of Science

Currently, environmental degradation caused by heavy metals has become a serious concern of many countries. To monitor the concentration of heavy metals in the environment, an in-situ sensor that can measure in real time and has high quality, sensitivity, and flexibility is essential. We proposed a modified multipath ring resonator (MPRR) based on silicon-on-insulator technology with additional gold nanodisk (GND) on top of the ring to increase its sensitivity. To prove the effect of GND on the sensitivity of the modified MPRR, finite-difference time-domain simulations were conducted. Results showed that the average sensitivity of the modified MPRR was 675 nm ...


Key Deposition Parameters For Short-Type Zno Nanosheets Electrodeposited Under Galvanostatic Mode, Gerald Ensang Timuda, Dhimas Harjanto, Wahyu Bambang Widayatno 2020 Research Center for Physics, Indonesian Institute of Sciences (P2F-LIPI), Building 442 Kawasan PUSPIPTEK, Banten 15314, Indonesia

Key Deposition Parameters For Short-Type Zno Nanosheets Electrodeposited Under Galvanostatic Mode, Gerald Ensang Timuda, Dhimas Harjanto, Wahyu Bambang Widayatno

Makara Journal of Science

Studies on the deposition of ZnO nanosheets grown vertically and perpendicular to conductive substrates have been conducted to obtain tall-type nanosheets (approximately 15 µm in height). However, some applications require short-type nanosheets with a height of about 1µm or less. In this study, short-type ZnO nanosheets were electrodeposited on indium-doped tin oxide substrates under galvanostatic (constant current) mode for a short deposition time. Then, the key parameters to form nanosheet layers with a height in the micrometer order and with good coverage were evaluated. Deposition was performed at −1 mA/cm2 for 60 s. Ar gas was initially bubbled ...


Water Quality Assessment In The Occurrence Of Acanthaster Spp. (Crown-Of-Thorns Starfish, Cots) On Coral Reefs In Menjangan Island, Bali, Indonesia, Novia Arinda Pradisty, Eghbert Elvan Ampou, Rizki Hanintyo 2020 Institute for Marine Research and Observation, Ministry of Marine Affairs and Fisheries, Bali 82251, Indonesia

Water Quality Assessment In The Occurrence Of Acanthaster Spp. (Crown-Of-Thorns Starfish, Cots) On Coral Reefs In Menjangan Island, Bali, Indonesia, Novia Arinda Pradisty, Eghbert Elvan Ampou, Rizki Hanintyo

Makara Journal of Science

Aquatic stressors are known to cause biological impairment that can result in biodiversity loss in several Marine Protected Areas (MPA), including in Menjangan Island, West Bali National Park. The objectives of this study were to correlate the changes in water quality parameters with the biological effect of Crown-of-Thorns starfish (CoTS) population dynamics and to assess the most applicable parameters for continuous environmental monitoring. Field observations and surveys were conducted three times in 2017, during the wet season, dry season and season transition, in order to assess the effect of seasonal variability. Redundancy Analysis (RDA) was performed to determine the relationship ...


Malonic Acid As A Green And Efficient Catalyst For The Mass-Scale Synthesis Of Pyrrole Medicinal Drugs, Farzaneh Mohamadpour 2020 School of Engineering, Apadana Institute of Higher Education, Shiraz, Iran

Malonic Acid As A Green And Efficient Catalyst For The Mass-Scale Synthesis Of Pyrrole Medicinal Drugs, Farzaneh Mohamadpour

Makara Journal of Science

A green and naturally biodegradable malonic acid synthesis of highly substituted dihydro-2-oxopyrrole derivatives has been accomplished via one-pot four-condensation of amines (aromatic or aliphatic), dialkyl acetylenedicarboxylate, and formaldehyde under mild reaction conditions. The notable advantages of the present procedure are a green, low cost, and efficient catalyst; operational simplicity; no need for chromatographic purification steps; short reaction times; and good to high yields.


Chapter 4 Report: Strings And Hexadecimals: Explained And Explored, Reed Kessler, Jeremy Evert 2020 Southwestern Oklahoma State University

Chapter 4 Report: Strings And Hexadecimals: Explained And Explored, Reed Kessler, Jeremy Evert

Student Research

What I learned from doing all three of these problems is the use of string statements, along with a better understanding of hexadecimals and their uses.


Solid Waste Co-Conversion By Hydrothermal Treatment Using Natural Zeolite, Lalak Tarbiyatun Nasyin Maleiva, Chandra Wahyu Purnomo 2020 Chemical Engineering Department, Engineering Faculty, Universitas Tanjungpura, Pontianak 78124, Indonesia

Solid Waste Co-Conversion By Hydrothermal Treatment Using Natural Zeolite, Lalak Tarbiyatun Nasyin Maleiva, Chandra Wahyu Purnomo

Makara Journal of Science

Hydrothermal treatment is a thermal conversion technology for processing high-moisture-content solid waste to coal-like materials. In this research, mixtures of sawdust and polyethylene terephthalate (PET) waste were treated in a 2000 mL hydrothermal reactor to produce hydrochar and a liquid product. The effects of zeolite addition and temperature variations during the treatment on the product characteristics were investigated. During the treatment, the utilized temperatures were 180, 200, and 220 °C, and the zeolite contents in the mixture were 10 and 20 wt%; the temperature and zeolite content were varied, while the other processing parameters were fixed, i.e., a biomass-to-PET ...


Hepatitis B Surface Antigen And Viral Dna Detection And Prevalence In Nige-Ria, Abazuh Uchenna Desmond, Ohiengbomwan Onaiwu Tola, Adeolu Isaac, Yusuf Mercy 2020 Department of Cell Biology and Genetics, Faculty of Sciences, University of Lagos, Akoka, Lagos, Nigeria

Hepatitis B Surface Antigen And Viral Dna Detection And Prevalence In Nige-Ria, Abazuh Uchenna Desmond, Ohiengbomwan Onaiwu Tola, Adeolu Isaac, Yusuf Mercy

Makara Journal of Science

Hepatitis B infection is a major public health issue with a high mortality rate. It is caused by hepatitis B virus (HBV), a small incomplete hepadnavirus with several open reading frames (ORF). High mutation rates of the HBV ORFs due to the virus’ replicating strategy are associated with the development and emergence of mutant strains, which may result in occult infections that are undetectable by conventional diagnostic assays. In this study, we first investigated the presence and prevalence of hepatitis B surface antigen (HBsAg) and HBV DNA among 204 patients visiting the specialist hospital in Osogbo, Nigeria, by using the ...


Removal Of Pb2+ And Cd2+ From Aqueous Solutions Using Pocl3 Cross-Linked Carboxymethyl Derivatives Of Legume Starch, Ayodele Akinterinwa, Ebun Oladele, Albert Adebayo, Olubode Ajayi 2020 Department of Chemistry, Modibbo Adama University of Technology, Yola P.M.B. 2076, Nigeria

Removal Of Pb2+ And Cd2+ From Aqueous Solutions Using Pocl3 Cross-Linked Carboxymethyl Derivatives Of Legume Starch, Ayodele Akinterinwa, Ebun Oladele, Albert Adebayo, Olubode Ajayi

Makara Journal of Science

Starch was extracted from Kwakil beans and cross-linked with POCl3 (1% v/w of starch dry basis [db]). The cross-linked starch (PCS) derivative was carboxymethylated with sodium monochloroacetate (5% to 30% w/w of starch db) to obtain cross-linked carboxymethyl starch (PCCS) derivatives. The derivatives were used in the adsorption of Pb2+ and Cd2+, and the process was monitored using atomic adsorption spectrometer. Carboxymethylation enhanced adsorption of ions (Cd2+, 95% to 96%; Pb, 65% to 94%), and it was more appreciable with Pb2+ than Cd2+ as degree of substitution increased from 0.008 to ...


Instability Of Glucocorticoid Metabolites In Coyote Scats: Implications For Field Sampling, Erika T. Stevenson, Eric M. Gese, Lorin A. Neuman-Lee, Susannah S. French 2020 US Department of Agriculture

Instability Of Glucocorticoid Metabolites In Coyote Scats: Implications For Field Sampling, Erika T. Stevenson, Eric M. Gese, Lorin A. Neuman-Lee, Susannah S. French

Human–Wildlife Interactions

Studying physiologic stress responses can assist in understanding the welfare of animals. One method of measuring the physiologic stress response is evaluating concentrations of glucocorticoid metabolites in feces. Previously, using an adrenocorticotropic hormone challenge, we found fecal glucocorticoid metabolite levels were a reliable indicator of physiologic stress response in coyotes (Canis latrans). We determine whether glucocorticoid metabolite concentrations remain stable when collecting feces over a 2-week period, a timeframe commonly used in scat surveys for wild canids. We collected feces from 6 captive coyotes maintained at the U.S. Department of Agriculture, Wildlife Services, National Wildlife Research Center, Predator Research ...


The Use Of Criteria And Indicator Monitoring Of Ecosystem Sustainability To Assess Ecosystem Services On Grasslands/Rangelands, R. Dennis Child, Janette Kaiser, Ralph Crawford 2020 University of Kentucky

The Use Of Criteria And Indicator Monitoring Of Ecosystem Sustainability To Assess Ecosystem Services On Grasslands/Rangelands, R. Dennis Child, Janette Kaiser, Ralph Crawford

International Grassland Congress Proceedings

No abstract provided.


Applicability Of Criteria And Indicators For Sustainable Grassland Management To Rangelands Of Patagonia (Argentina), Gabriel E. Oliva, Andrés F. Cibils 2020 INTA, Argentina

Applicability Of Criteria And Indicators For Sustainable Grassland Management To Rangelands Of Patagonia (Argentina), Gabriel E. Oliva, Andrés F. Cibils

International Grassland Congress Proceedings

No abstract provided.


Indicators Of Sustainability In African Ranglands, Walter J. Lusigi, Leornad Berry 2020 The World Bank

Indicators Of Sustainability In African Ranglands, Walter J. Lusigi, Leornad Berry

International Grassland Congress Proceedings

No abstract provided.


Three-Dimensional Profiling Of Oled By Laser Desorption Ionization-Mass Spectrometry Imaging, Andrew E. Paulson, Trevor T. Forsman, Young Jin Lee 2020 Iowa State University

Three-Dimensional Profiling Of Oled By Laser Desorption Ionization-Mass Spectrometry Imaging, Andrew E. Paulson, Trevor T. Forsman, Young Jin Lee

Chemistry Publications

Organic light emitting devices (OLEDs), especially in a screen display format, present unique and interesting substrates for Laser Desorption/Ionization - Mass Spectrometry Imaging (LDI-MSI) analysis. These devices contain many compounds that inherently absorb light energy and do not require an additional matrix to induce desorption and ionization. OLED screens have lateral features with dimensions that are tens of microns in magnitude and depth features that are tens to hundreds of nanometers thick. Monitoring the chemical composition of these features is essential, as contamination and degradation can impact device lifetime. This work demonstrates the capability of LDI-MSI to obtain lateral and ...


Concomitant Of Order Statistics From New Bivariate Gompertz Distribution, Sumit Kumar, M. J. S. Khan, Surinder Kumar 2020 Babasaheb Bhimrao Ambedkar University

Concomitant Of Order Statistics From New Bivariate Gompertz Distribution, Sumit Kumar, M. J. S. Khan, Surinder Kumar

Journal of Modern Applied Statistical Methods

For the new bivariate Gompertz distribution, the expression for probability density function (pdf) of rth order statistics and pdf of concomitant arising from rth order statistics are derived. The properties of concomitant arising from the corresponding order statistics are used to derive these results. The exact expression for moment generating function (mgf) of concomitant of order rth statistics is derived. Also, the mean of concomitant arising from rth order statistics is computed using the mgf of concomitant of rth order statistics, and the exact expression for joint density of concomitant of two non-adjacent order statistics ...


Experiences With Grazing The New Annual Pasture Legume Biserrula Pelecinus L. In Southern Australia Production Benefits And Risk Of Photosensitisation, Clinton K. Revell, N. Robertson, I. Williams 2020 Department of Agriculture and Food Western Australia, Australia

Experiences With Grazing The New Annual Pasture Legume Biserrula Pelecinus L. In Southern Australia Production Benefits And Risk Of Photosensitisation, Clinton K. Revell, N. Robertson, I. Williams

International Grassland Congress Proceedings

No abstract provided.


Grazing Impacts On The Dynamics Of Two Long Lived Perennial Grasses In Tropical Australia, David M. Orr, P. J. O'Reagain 2020 Department of Primary Industries and Fisheries, Australia

Grazing Impacts On The Dynamics Of Two Long Lived Perennial Grasses In Tropical Australia, David M. Orr, P. J. O'Reagain

International Grassland Congress Proceedings

No abstract provided.


Testing Non‐Equilibrium Theory: Effects Of Grazing On Plant Community Composition And Soil Nutrient Availability In Dry Southern Mongolian Steppes, Karsten Wesche, Katrin Ronnenberg 2020 Geobotany and Botanical Garden, Germany

Testing Non‐Equilibrium Theory: Effects Of Grazing On Plant Community Composition And Soil Nutrient Availability In Dry Southern Mongolian Steppes, Karsten Wesche, Katrin Ronnenberg

International Grassland Congress Proceedings

No abstract provided.


The Use Of Faecal Nirs To Monitor Diet Quality Different Grazing Systems In Tropical Savannas, Andrew I. White, L. P. Hunt, S. R. Petty, Dennis P. Poppi 2020 Heytesbury Beef, Australia

The Use Of Faecal Nirs To Monitor Diet Quality Different Grazing Systems In Tropical Savannas, Andrew I. White, L. P. Hunt, S. R. Petty, Dennis P. Poppi

International Grassland Congress Proceedings

No abstract provided.


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