Physical Sciences and Mathematics Commons^™

Nitrogen Losses Through Denitrification From A Grazed Pasture As Affected By The Use Of Anitrification Inhibitor, W. Sun, Jiafa Luo, S. Lindsey, Sterwart F. Ledgard

IGC Proceedings (1993-2023)

No abstract provided.

Plant Species Composition And Soil Microbial Community Structure In A Semi‐Natural Grassland In Japan, Shu‐Ichi Sugiyama, Atushi Okubo, M. Zabed Hossain, Guangcheng Liu

IGC Proceedings (1993-2023)

No abstract provided.

Changes In Inorganic Ion Accumulation And Growth Of Leymus Chinensis Community Along The Retrogression On The Songnen Grassland In Northeastern China, Lianxuan Shi, Jixun Guo

IGC Proceedings (1993-2023)

No abstract provided.

Long‐Term Phosphorus Fertilization And Perennial Legumes Addition Impacts On A Temperate Natural Grassland: Ii. Total And Particulate Soil Organic Carbon, Lucía Salvo, José A. Terra, Walter Ayala, Raül Bermudez, José Correa, Paola Avila, Jorge Hernández

IGC Proceedings (1993-2023)

No abstract provided.

Clopyralid Uptake Of Contaminated Compost‐Fertilised Corn, Ryuichi Uegaki, Munehiro Ebato, Madoka Sutoh, Yimin Cai

IGC Proceedings (1993-2023)

No abstract provided.

Earth’S Oceanic Oxygen History From Phanerozoic To Pleistocene Glacial Cycles: Insights From The Carbonate Iodine-To-Calcium Proxy, Wanyi Lu

Dissertations - ALL

Oxygen in the oceans is an important part of the significant and complex evolution of Earth’s climate, with great significance for the evolution of life in the oceans. My PhD research has been primarily driven by three major questions: (1) How can we reliably reconstruct oxygen levels in ancient oceans? (2) How did oceanic oxygen levels evolve throughout Earth’s history? (3) How did oceanic oxygen levels affect habitability of the Earth? Most studies of the Earth’s oxygen history have focused on the atmosphere and deep oceans, but in contrast, I focused on the upper ocean (the top tens to a …

Feasibility Study On Environmental Protection Reform Of Ship Stern Tube System Based On Water Lubrication, Yang Cui

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Research On Intelligent Ship Energy Efficiency Management Technology, Ranqi Ma

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Study On The Mechanism Of Compensation Fund System For Shipping Oil Pollution Damage In China And International Oil Pollution Compensation Funds, Haiyue Shu

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Research On "Zero Discharge" Technical Route Of International Ship Pollutants, Zilin Zhen

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Suggestions For China’S Response To The Hns Convention, Yuhui Zhou

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

The Impact Of Stream-Groundwater Exchange On Seasonal Nitrate Loads In An Urban Stream, Julio I. Beltran

Theses - ALL

Urbanization negatively impacts water quality in streams by reducing stream-groundwater interactions, which reduces the stream’s ability to naturally attenuate nitrate. Meadowbrook Creek, a first order urban stream in Syracuse, New York, has a negative urbanization gradient that results in urbanized headwaters that are disconnected from the floodplain, and downstream reaches that have intact riparian floodplains and connection to riparian aquifers. This system allows us to assess how stream-aquifer interactions in urban streams impact the net sources and sinks of nitrate at the reach scale. We used continuous (15-minute) streamflow measurements, along with weekly grab samples at three gauging stations positioned …

Determination Of Structural Characteristics Of Tuzgölü Fault Zone Using Gravity And Magnetic Methods, Central Anatolia, Bahar Di̇nçer, Veysel Işik

Bulletin of the Mineral Research and Exploration

The anomaly maps and amplitude and wavelength changes of the anomalies obtained from gravity and magnetic methods can provide to identify fault traces in the underground. The Tuzgölü Fault Zone (TFZ), the NW-SE striking active fault zone in central Anatolia, includes fault strands that cut the basement and basin deposits. Our magnetic and gravity analysis suggests that Tuzgölü Basin and its surroundings are characterized by distinct depression and ridge areas. Gravity anomaly data show the presence of faults at depths of sea level (0 m), -1000 m, -2000 m, -3000 m, and -4000 m. These faults are mostly normal and …

Fluidization And Segregation In Confluent Models For Biological Tissues, Preeti Sahu

Dissertations - ALL

Collective tissue dynamics, more specifically a tissue's ability to fluidize and segregate, is imperative for proper embryonic development and normal physiological functioning. In this thesis, I use vertex models to understand how cell-scale properties govern large-scale collective behavior. I begin with the process of fluidization in ordered monolayers. By perturbing beyond the linear regime, I show that in confluent tissues the linear response does not correctly predict the non-linear behavior, which, in this case, is the ability to exchange neighbors and fluidize. We also construct a simple analytic ansatz that can predict the non-linear behaviour responsible for cellular motion in …

Investigating The Parameters Affecting The Sensitivity Of A Protein Nanopore Sensor, Motahareh Ghahari Larimi

Dissertations - ALL

In the last three decades nanopore sensing has emerged as a powerful technique for DNA sequencing and bio-molecular sensing. One of the great appeals of this technique is that it usually does not require any labeling or chemical modification. Additionally, its ability to examine a single molecule in real time is a rare feature which is not achievable with most of other techniques. In recent years, great efforts have been made to design a nanopore sensor for sampling peptide-protein and protein- protein interaction. To pave the way for designing a high-throughput wearable nanopore sensor, we will investigate a few of …

Development And Efficient Implementation Of Electron-Hole Interaction Kernel For Investigation Of Electronic Excitations In Semiconductor And Metallic Nanoparticles, Peter Francis Mclaughlin

Dissertations - ALL

The focus of this work is to construct theoretical methods or approaches to tackle computationally challenging problems in quantum chemistry. The primary topic of the work will focus on efficient theories that allow for capturing electron-correlation in semiconductor or metallic nanoparticles. These systems are computationally challenging due to the size of the systems, the number of electrons per atom, and the degeneracy of the particle-hole states. Three methods presented here are aimed at providing novel theoretical methods towards computationally inexpensive electronic excited state calculations. The frequency-dependent geminal-screened electron-hole interaction kernel (FD-GSIK) method provides a real-space approach towards eliminating the virtual …

Rigidity In Frictional Particle Packings And Dynamics In Living Polymeric Packings, Kuang Liu

Dissertations - ALL

indicated by the title, this is a thesis in two acts. The first act encapsulates a study of the rigidity transition in frictional particle packings, or how a packing goes from floppy-to-rigid as its particle density increases, for example. While consensus has emerged regarding the nature of the rigidity transition in frictionless packings, there is much less consensus with frictional packings. Therefore, I introduce two new complementary concepts, frictional rigidity percolation and minimal rigidity proliferation, to help identify the nature of the frictional rigidity transition. To probe frictional rigidity percolation, I construct rigid clusters using a (3,3) pebble game for …

Direct Determination Of The Weak Charge Of The Proton Via Parity-Violating Electron Scattering, Peng Zang

Dissertations - ALL

The weak charge of the proton is determined via Qweak experiment at Thomas Jefferson Laboratory in Newport News, VA. A longitudinally polarized electron beam was scattered by a liquid hydrogen target. The spin direction of the electron beam was switched between left and right helicity states. The cross section under both of the electron states were measured to form the parity-violating asymmetry. An asymmetry of -226.5±7.3(stat)±5.8(syst) was measured, corresponding to a weak charge of 0.0719±0.0045 for the proton, which agrees with the value of 0.0708±0.0003 from the Standard Model.

During the spin reversion of the electrons, other unwanted changes of …

The Most-Cited Articles In Data In Brief Journal: A Bibliometric Analysis Using Scopus Data, Lusiana Wulansari, Ansari Saleh Ahmar, Agus Rochmat, Nurmawati, Akbar Iskandar

Library Philosophy and Practice (e-journal)

Bibliometric analysis is one of the research approaches that utilizes quantitative and mathematical data to address problems posed in the context of visualization to see patterns in the field of science. In fact, bibliometric analysis may also include a wider overview of the names of the most influential writers in the area of science. This data analysis would discuss the most-cited articles in Data in Brief Journal including the countries, authors. The data was collected on 31st May 2020 of Scopus database. The literature review was conducted using the keyword: ISSN (2352-3409). The bibliometric analysis is visualized utilizing the VosViewer …

Structural And Functional Insights Into Ghrelin Acylation By Ghrelin O-Acyltransferase, Maria Campana

Dissertations - ALL

Ghrelin is a peptide hormone primarily secreted by the stomach that acts as the endogenous ligand for the GHSR1a G-protein-coupled receptor. This 28 amino acid peptide stimulates appetite and has been associated with the cardiovascular, gastrointestinal, neuroendocrine, and immune systems. Ghrelin requires a unique posttranslational modification to be biological active. Ghrelin O-acyltransferase (GOAT) is responsible for catalyzing octanoylation of the 3rd serine side chain of ghrelin to generate the active form of this hormone. Thus, GOAT is considered as a potential therapeutic target for treatment of obesity and other disorders linked to the peptide. Yet, the active site architecture and …

Elucidating Dopant Migration Mechanism For The Controlled Dopant Locations/Distribution Within Core/Shell Nanocrystals, Elan Hofman

Dissertations - ALL

Understanding the fundamental principles behind transition metal ion doped semiconducting materials has drawn immense interest when designing ideal systems for use in optical and electronic devices. Dopant ions have been found to diffuse/migrate throughout solid materials when the thermal energy of the system is elevated above a temperature boundary allowing the cations and anions within a system to move freely. Nanomaterials such as 0-dimensional (0D) quantum dots (QDs), 1D nanorods/nanowires, and 2D nanoplatelets have unique dopant-location dependent optical and electronic properties which can be drastically altered based on the final dopant sites and distribution throughout the material. This work focuses …

Laboratory Studies Of Structural Changes In Water-Poor And Water-Rich Ices: A Connection To Molecule Formation In Interstellar Ices, Francis Eugene Toriello

Dissertations - ALL

In this thesis I explore the results of ultra-high vacuum laboratory experiments performed at the Syracuse University Astrophysics and Surface Science Laboratory on structural changes of analogs of ice mantles that cover dust grains in dense clouds in the interstellar medium. We present the experimental and analytical techniques that we used and the motivations for the investigations in the context of molecular astrophysics. The primary contribution of this thesis is the meaningful insight into the long-standing question of how molecular diffusion and formation occur in or on ices in the interstellar medium under the conditions of low pressure and low …

Expanding The Potential Prenylome: Prenylation Of Shortened Target Substrates By Ftase And Development Of Fret-Based System For Detecting Potentially “Shunted” Proteins, Sudhat Ashok

Dissertations - ALL

Protein prenylation is a posttranslational modification involving the attachment of a C15 or C20 isoprenoid group to a cysteine residue near the C-terminus of the target substrate by protein farnesyltransferase (FTase) or protein geranylgeranyltransferase type I (GGTase-I), respectively. Both of these protein prenyltransferases recognize a C-terminal "CaaX" sequence in their protein substrates, but recent studies in yeast- and mammalian-based systems have demonstrated FTase can also accept sequences that diverge in length from the canonical four-amino acid motif, such as the recently reported five-amino acid C(x)3X motif. In this work, we further expand the substrate scope of FTase by demonstrating sequence-dependent …

Spectroscopy Versus Turbidity: Non-Invasive In Vivo Monitoring Of Living Systems, Seth Fillioe

Dissertations - ALL

The overall aim is to advance the use of light for noninvasive monitoring of living systems generally defined. We first describe work used to test a methodology for real-time probing of chemical and physical changes in spinal cords in the immediate aftermath of a localized contusive injury by way of calculating pH to monitor physiological changes in the system. Utilizing a previously developed unique algorithm, line scans of injured cords as well as optical profilimetry and scanning NIR autofluorescence images were obtained simultaneously in vivo, on exposed rat spinal cords. For line scans, the laser spatially scanned across the cord …

Investigating The Relationships Between Disorder, Structure, And Dynamics In Amorphous Systems, Ethan Stanifer

Dissertations - ALL

In this thesis, we investigate the relationships between the disorder, structure, and deformation in amorphous materials. First, to understand the surprising low-frequency vibrational modes in structural glasses, and how it arises from the microscopic disorder in the system, we study the spectra of a large ensemble of sparse random matrices where disorder is controlled by the distribution of bond weights and network coordination. When there is a finite probability density of infinitesimal bond weights, we find a region in the vibrational density of states that is consistent with the low-frequency behavior in structural glasses. Next, in order to investigate structural …

Effect Of Grazing On Soil Structure And Consequences For Soil Mechanical And Hydraulic Propertiesin Inner Mongolia, A. Reszkowska, J. Krümmelbein, S. Peth, L. Gan, X. Peng, R. Horn

IGC Proceedings (1993-2023)

No abstract provided.

The Soil Improvement Effect Of Afforestation In Grassland--Take Gegentala Grassland As Example, Zhongju Meng, Yong Gao, Deren Yan

IGC Proceedings (1993-2023)

No abstract provided.

Residue Effects Of Animal Manures On Forage Production And Soil Fertility After Receiving Longterm Of Manure Application, Fu‐Hsing Hsu, Kuoyuan Hong, Chihsin Lu

IGC Proceedings (1993-2023)

No abstract provided.

Biological Ways To Improve The Production Of Forage Pea For Use In The Animal Feed Industry, D. Egamberdieva, L. Gafurova

IGC Proceedings (1993-2023)

No abstract provided.

Response Of Spatial Distribution Of Phosphorus In Soil To Wetlands Restoration In Yellow River, Delta Qiuyi Ding, Junhong Bai, Haifeng Gao

IGC Proceedings (1993-2023)

No abstract provided.