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Current Legal Framework On South Africa And Cameroon Relating To Plastic Pollution To The Environment On A Comparative Basis : Case Study : South Africa And Cameroon, Temah Larry Besong Ndi

World Maritime University Dissertations

The objective of these studies is to compare the environmental laws of South Africa and Cameroon with focus on plastic pollution laws on both nations, with a yard stick of that of IMO international conventions. The reason to better the environmental laws of Cameroon, copying that of South Africa which is very much advanced and are signatories to several IMO conventions, in abide to put Cameroon administration on same level. The importance of the marine environment need not be over emphasis as the plastics pollution is now a global concerned and Cameroon at the mouth of Atlantic Ocean, with a …

A Study On The Reasons For Sharp Decline On The Baltic Exchange Dry Index In 2008, Sung Man Jung

World Maritime University Dissertations

This dissertation starts from the decline of the Baltic Dry Index (BDI) of the Baltic Exchange in 2008 from 11,793 point to 663 point, which decreased by 94% from the peak within 7 months. To detect the reasons for the sharp decline of BDI, this dissertation has focused on the direction of research into demand and supply on shipping industry. All variables related with demand on shipping are divided into two groups - sea borne trade volume variables and the physical commodity price variables, ship dead weight tonnage (DWT) was selected as a supply variable, and Net Futures Position and …

The Relevance Of Maritime Education And Training At The Secondary Level, Simone Britanna Cunningham

World Maritime University Dissertations

The relevance of MET at the secondary level has been found to be necessary to increase awareness as well as to mitigate the trends and challenges influenced by the philosophical and sociological changes experienced in society and the Maritime Industry. Firstly, this study examines the purpose of secondary education, the secondary curriculum; factors that may require MET at the secondary level as well as the effectiveness of early awareness of maritime concepts to youth ages 11-18 years. Secondly, a mixed method approach was applied in collecting and analysing data through survey and interviews. Considering the objectives of the study the …

U.S. History, P. Scott Corbett, Jay Precht, Volker Janssen, John M. Lund, Todd Pfannestiel, Paul Vickery, Sylvie Waskiewicz

Open Educational Resources Collection

U.S. History is designed to meet the scope and sequence requirements of most introductory courses. The text provides a balanced approach to U.S. history, considering the people, events, and ideas that have shaped the United States from both the top down (politics, economics, diplomacy) and bottom up (eyewitness accounts, lived experience). U.S. History covers key forces that form the American experience, with particular attention to issues of race, class, and gender.

U.S. Drought Monitor, December 30, 2014, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for December 30, 2014 (12/30/14) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Three Win Poster Awards At National Honors Conference, Staff

Browse All News

No abstract provided.

The Impact Of The Learning Style In Order To Be Able To Use The Ball Thrower Device In Tennis ( Smash ) On The Accuracy Of Learning The Skill Of Pronunciation, Rafid Mehdi Kaddouri

Modern Sport

The research aimed to investigate the impact of the "learning for mastery" method using a ball launcher on the accuracy of learning the smash skill in tennis. The research hypothesis confirmed that the "learning for mastery" method using the ball launcher has a positive effect on enhancing the accuracy of the smash skill in tennis. The research sample included the youth players of Bani Saad in tennis. Chapter two presented the theoretical studies and similar studies related to the topic. Chapter three discussed the research methodology and field procedures, where the experimental method was used to test the research hypothesis. …

Studying The Amount Of Angular Movement (Momentum) Of The Captain During Shooting And Its Contribution To The Values Of The Speed Of The Ball When Performing The Skill Of Shooting With The Hand Ball, Dergham Abdul Salem Nimah, Yarub Abdul Baqi Daikh

Modern Sport

The skill of shooting from a jump is considered one of the important and challenging skills, especially when the distance is long. In such cases, the player must face the goal to allow freedom in shooting, which requires specific movements in various body parts to change the player's speed, thereby increasing the ball’s speed. This increase in ball speed is crucial for shooting in certain situations. Therefore, it is essential to move certain body parts to generate speed, which is transferred to the ball. The speed in shooting results from the transfer of motion from the lower limbs to the …

Evaluating Some Of The Physical Abilities Of The Students Of The First Stage In The Faculty Of Mathematical Education At The University Of Manchester, Ahmed Hassan Yas

Modern Sport

The study consisted of five sections. Part I included an introduction and the importance of the research, where the researcher discussed the physical and skill tests required for students applying for admission to the Faculty of Physical Education, emphasizing their significance in determining the physical condition and skills of the student. The researcher also highlighted the importance of evaluating the physical and skill aspects of students after several months of admission to assess their progress and the impact of academic lessons on their capabilities. The problem of the research was identified as the lack of a framework for evaluating the …

Modeling, Fabrication, And Characterization Of Memristors, Anas Mazady

Doctoral Dissertations

The term “memristor” was coined by L. Chua from its two distinct functional characteristics, memory and resistor. From the symmetry argument of the circuit element and circuit variable matrix, memristor is deemed as the fourth fundamental circuit element, after resistor, capacitor, and inductor. Memristor switching and observed I-V characteristics are explained utilizing the underlying physics of the device in terms of the formation and rupture of filaments. Three different conduction mechanisms, namely - filament assisted tunneling current, bulk tunneling current and currents flowing through low and high conductivity filaments give rise to the total current in memristive systems. DC and …

Unidirectional Spectral Singularities, Hamidreza Ramezani, Hao Kun Li, Yuan Wang, Xiang Zhang

Physics & Astronomy Faculty Publications

We propose a class of spectral singularities emerging from the coincidence of two independent singularities with highly directional responses. These spectral singularities result from resonance trapping induced by the interplay between parity-time symmetry and Fano resonances. At these singularities, while the system is reciprocal in terms of a finite transmission, a simultaneous infinite reflection from one side and zero reflection from the opposite side can be realized.

Effects Of Educational News Stories On The Beliefs Of Taiwanese Teacher Education Students, Shih-Hsiung Liu

Asia-Pacific Social Science Review

Educational news stories are likely to provide teacher education students with opportunities to understand the educational situation in the real world. However, in the case of Taiwan, most of local newspapers present negative coverage that may induce teacher education students to generate pessimistic opinions and further negatively affect the formation of their beliefs regarding the nature of education. This study determines the effects of reading educational news stories by teacher education students on their beliefs regarding education after controlling for factors like pre-existing beliefs and perceptions of news story credibility. An experimental research method with a two-group pretest-posttest design, consisting …

Inductive Measurement Of Optically Hyperpolarized Phosphorous Donor Nuclei In An Isotopically Enriched Silicon-28 Crystal, P. Gumann, O. Patange, C. Ramanathan, H. Haas

Dartmouth Scholarship

We experimentally demonstrate the first inductive readout of optically hyperpolarized phosphorus-31 donor nuclear spins in an isotopically enriched silicon-28 crystal. The concentration of phosphorus donors in the crystal was 1.5×1015  cm−3, 3 orders of magnitude lower than has previously been detected via direct inductive detection. The signal-to-noise ratio measured in a single free induction decay from a 1  cm3 sample (≈1015 spins) was 113. By transferring the sample to an X-band ESR spectrometer, we were able to obtain a lower bound for the nuclear spin polarization at 1.7 K of ∼64%. The 31P-T2 measured with a Hahn echo sequence was …

Examining The Global Financial Crisis From A Virtue Theory Lens, Aliza D. Racelis

Asia-Pacific Social Science Review

As the financial crisis of 2008-9 has continued to affect the global economy, many wonder whether the proposed solutions contribute to a more stable financial system as well as to better human behaviour. While the Financial Crisis Inquiry Commission (FCIC) Report (2011) identified the factors essential to explaining the causes of the financial crisis as having included credit and housing bubbles, nontraditional mortgages, credit ratings and securitization, financial institutions concentrated correlated risk, leverage and liquidity risk, contagion risk, shock and panic, failure in virtue has also been very patent in the crisis, foremost of them being: excessive leverage and imprudent …

Distaste: Joyce Carol Oates And Food, David Rutledge

Bearing Witness: Joyce Carol Oates Studies

Distaste: Joyce Carol Oates and Food

Abstract

In many of her short stories and novels, Joyce Carol Oates depicts an unhealthy relationship with food. The range of these unhealthy relationships is wide, from overeating to the point of suicide, in Expensive People, to starving oneself in an attempt to deny one’s physical nature, in “Orange” and them. Overindulgence is a means for attempting to fill that space where the soul should be; undereating is often an attempt to deny one’s place in the social world. The eating disorders she portrays are rooted in both personal and social causes. …

Chalcogen Bonds In Complexes Of Soxy (X, Y = F, Cl) With Nitrogen Bases, Luis Miguel Azofra, Ibon Alkorta, Steve Scheiner

Chemistry and Biochemistry Faculty Publications

SOF2, SOFCl, and SOCl2 were each paired with a series of N bases. The potential energy surface of the binary complexes were characterized by MP2 calculations with double and triple-ξ basis sets, extrapolated to complete sets. The most stable configurations contained a S···N chalcogen bond with interaction energies as high as 6.8 kcal/mol. These structures are stabilized by a Nlp→σ*(S−Z) electron transfer (Z = O, F, Cl), complemented by Coulombicattraction of N to theσ-hole opposite the Z atom. N···S−F and N···S−Cl chalcogen bonds are stronger than N···S = O interactions.Formation of each chalcogen bond elongates all of the internalcovalent bonds …

In Search Of The X2Bo And X2Bs (X = H, F) Free Radicals: Ab Initio Studies Of Their Spectroscopic Signatures, Dennis J. Clouthier

Chemistry Faculty Publications

The F₂BO free radical is a known, although little studied, species but similar X₂BY (X = H, D, F; Y = O, S) molecules are largely unknown. High level ab initio methods have been used to predict the molecular structures, vibrational frequencies (in cm^-1), and relative energies of the ground and first two excited electronic states of these free radicals, as an aid to their eventual spectroscopic identification. The chosen theoretical methods and basis sets were tested on F₂BO and found to give good agreement with the known experimental quantities. In particular, …

Modeling Properties Of Deformation Pattern, Yuan Lin

Theses and Dissertations

The human aging process is a complicated topic in the biological sciences. It is human nature to want to keep looking young and interested in one's appearance many years into the future. Some fundamental questions related to this issue are, "How fast are we aging?" Is it a continuous process or is it a process of phases? What will I possibly look like after ten years? To provide an answer to all of these questions, it is necessary to closely monitor the changes taking places in our anatomy. Wrinkles and human face shape deformation, which are the natural signs of …

Momentum Distributions For 2H (E, E' P), William P. Ford, Sabine Jeschonnek, J. W. Van Orden

Faculty Publications

Background: A primary goal of deuteron electrodisintegration is the possibility of extracting the deuteron momentum distribution. This extraction is inherently fraught with difficulty, as the momentum distribution is not an observable and the extraction relies on theoretical models dependent on other models as input.

Purpose: We present a new method for extracting the momentum distribution which takes into account a wide variety of model inputs thus providing a theoretical uncertainty due to the various model constituents. To test the extraction, pseudodata were generated, and the extracted “experimental” distribution, which has theoretical uncertainty accounted by this extraction method, can be compared …

Shape Recognition: Convexities, Concavities And Things In Between, G Schmidtmann, Bj Jennings, S Guimond, Faa Kingdom

School of Health Professions

No abstract provided.

Sulfur Vacancies In Photorefractive Sn2P2S6 Crystals, Eric M. Golden, Sergey A. Basun, A. A. Grabar, I. M. Stoika, Nancy C. Giles, D. R. Evans, Larry E. Halliburton

Faculty Publications

A photoinduced electron paramagnetic resonance (EPR) spectrum in single crystals of Sn2P2S6 (SPS) is assigned to an electron trapped at a sulfur vacancy. These vacancies are unintentionally present in undoped SPS crystals and are expected to play an important role in the photorefractive behavior of the material. Nonparamagnetic sulfur vacancies are formed during the initial growth of the crystal. Subsequent illumination below 100 K with 442 nm laser light easily converts these vacancies to EPR-active defects. The resulting S = 1/2 spectrum shows well-resolved and nearly isotropic hyperfine interactions with two P ions and two Sn ions. Partially resolved interactions …

Investigation Of Emic Wave Scattering As The Cause For The Barrel 17 January 2013 Relativistic Electron Precipitation Event: A Quantitative Comparison Of Simulation With Observations, Zan Li, Robyn M. Millan, Mary K. Hudson, Leslie A. Woodger, David M. Smith, Yue Chen, R. Friedel, J. V. Rodriguez, Mark J. Engebretson, J. Goldstein, Joseph F. Fennell, Harlan E. Spence

Physics & Astronomy

Abstract

Electromagnetic ion cyclotron (EMIC) waves were observed at multiple observatory locations for several hours on 17 January 2013. During the wave activity period, a duskside relativistic electron precipitation (REP) event was observed by one of the Balloon Array for Radiation belt Relativistic Electron Losses (BARREL) balloons and was magnetically mapped close to Geostationary Operational Environmental Satellite (GOES) 13. We simulate the relativistic electron pitch angle diffusion caused by gyroresonant interactions with EMIC waves using wave and particle data measured by multiple instruments on board GOES 13 and the Van Allen Probes. We show that the count rate, the energy …

Platinum Hollow Nanospheres With Different Sizes: Controllable Synthesis And Electrocatalytic Oxidation Toward Methanol, Xuan Lin, Mei-Qin Cheng, Zhong-Jin Shang, Ting Xiong, Xian-Tu Zhang, Wei Tian, Jian-Yun Lin, Qi-Ling Zhong, Bin Ren

Journal of Electrochemistry

The selenium (Se) templates and hollow platinum (Pthollow) nanospheres with different sizes were controllably synthesized by adjusting the concentration of sodium dodecyl sulphonate (SDSN) (CSDSN, μmol·L-1) which was used as a surfactant. Accordingly, the Pthollow nanospheres modified glassy carbon (GC) electrode (Pthollow/GC) was prepared. The morphology and composition of Pthollow nanospheres were characterized by scanning electron microscopy (SEM), transmission electron microscope (TEM), energy dispersive X-ray spectroscopy (EDX), high resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED) and X-ray diffraction (XRD) techniques. The electrocatalytic activities of Pthollow/GC and electrodeposited Pt nanoparticles modified glassy carbon electrode (Ptnano/GC) toward methanol oxidation …

Baseline Survey For Street Dogs In Guam, John D. Boone

Stray and Feral Animal Populations Collection

As is the case for many inhabited islands in Pacific region, dogs are common, including freeroaming street dogs that may be owned or unowned. Reproduction among dogs is largely unchecked, and many owned dogs do not receive adequate levels of basic care in the home or veterinary care when needed. For all of these reasons, Humane Society International (HSI) is exploring options for improving the management of street dog populations and promoting better treatment and care of all dogs on Guam and on the nearby islands of Rota and Saipan. One of the initial steps in this process was to …

Comparison In Factors Affecting Electrochemical Properties Of Thermal-Reduced Graphene Oxide For Supercapacitors, Peng Xiao, Da-Hui Wang, Jun-Wei Lang

Journal of Electrochemistry

In this paper, thermal-reduced graphene oxide (T-RGO) materials are synthesized by modified Hummer’s method, followed by thermal reduction under argon atmosphere at different temperatures. Electrochemical investigations show that, for T-RGO electrodes, good electrical conductivity is necessary and the surface functional groups play more significant role than the specific surface area in determining the electrochemical capacitance. The T-RGO obtained at 900 °C (T-RGO900) with a relatively high Brunauer-Emmett-Teller (BET) surface area (314 m²·g^-1) and a high electrical conductivity (2421 S·m^-1) shows a low specific capacitance of 56 F·g^-1. In comparison, the T-RGO obtained …

Nafion/Thionine/Platinum Nanowires-Modified Electrode For Electrocatalyzing Glucose, Yu-Ping Lin, You-Xiu Lin, Qian Zhou, Dian-Ping Tang

Journal of Electrochemistry

A new amperometric biosensor based on Nafion, thionine and latinum nanowires was developed for sensitive detection of glucose. Initially, positively charged thionine molecules were immobilized onto the surface of Nafion-modified glassy carbon electrode through the interaction between -SO₃^- and -NH₃⁺, and glucose oxidase was then assembled on the modified electrode by using platinum nanowires as the cross-linkage. The preparation process was characterized by using cyclic voltammetry. Two enzymatic biosensors modified with and without platinum nanowires were used for the detection of glucose, and the improved analytical properties were obtained with platinum nanowires. Experimental results indicated …

Kinetics And Mechanism Of Acidic Electroless Ni-P Plating, Zhi-Hui Xie, Gang Yu

Journal of Electrochemistry

Electrochemical behaviors of electroless nickel (EN) plating in three systems, namely, cathodic, anodic and complete bath solutions were investigated by polarization methods. The curves in the complete baths were not entirely consistent with those expected from a combination of the anodic and cathodic polarization curves, which implies that the anodic and cathodic reactions of the EN plating are interdependent. The effects of concentration of nickel ions, hypophosphite and pH on the polarization parameter and deposition rate in a complete bath were also discussed and compared by performing electrochemical and gravimetrical measurements. Based on these variations in the deposition potential and …

Synthesis Of Namnpo4 By Spraying Drying-High Temperature Sintering And Its Electrochemical Performance, Xiao-Chen Lin, Xiao-Biao Wu, Xu Hou, Yong Yang

Journal of Electrochemistry

As a cathode material for sodium ion batteries, NaMnPO₄/C nanocomposite is successfully synthesized by the combination of spraying drying and high temperature sintering methods. The crystal structure of the as-synthesized phosphate material is confirmed as the natrophilite NaMnPO₄, which possesses orthorhombic symmetry and Pmnb space group. It is shown that the precursors are hollow spherical particles and the obtained product consists of micro-scaled secondary particles, which are composed of NaMnPO₄ nanocrystallites (tens of nanometres) and amorphous carbon networks. The ionic and electronic conductivities of NaMnPO₄ are both effectively enhanced with the help of this …

One-Step Synthesis Of Pani/Nihcf Hybrid Film Using Unipolar Pulse Electrodeposition And Its Electrocatalytic Reduction Performance For H2O2 Detection, Sen-Liang Liao, Xiu-Min Li, Xiao-Gang Hao, Yan-Hong Wang, Chun-Feng Xue, Yong-Hong Wang

Journal of Electrochemistry

Organic–inorganic hybrid films composed of polyaniline/nickel hexacyanoferrate (PANI/NiHCF) were fabricated on platinum substrates using unipolar pulse one-step electrodeposition. The deposition mechanism of hybrid film was proposed: Due to high potential of unipolar pulse electrodeposition, which avoided the reduction of Fe(CN)₆^3-, the films with high electrocatalytic property and “insoluble” form of NiHCF were achieved. The morphology and composition of PANI/NiHCF hybrid film were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and Fourier transform infrared spectroscopy (FT-IR). The effect of pulse potential on the electrochemical performance of hybrid film was investigated in detail. Results showed that …

Electrochemical Applications Of Single-Walled Carbon Nanohorns, Su-Ping Li, Huai-Min Guan, Shu-Yun Zhu, Muhammad Rehan Hassan Shah Gilani, Saima Hanif, Guo-Bao Xu, Yue-Jin Tong

Journal of Electrochemistry

Single-wall carbon nanohorns (SWCNHs) have unique properties, such as a large specific surface area, good electrical conductivity and biocompatibility. It has been widely utilized in many fields. In the present review, the progress in electrochemistry study of SWCNHs has been summarized and the future research trends have been proposed.