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Turkish Journal of Chemistry

No abstract provided.

Chemistry Of 2-Aminoanthraquinones, Mostafa Gouda, Moged Berghot, Alaa Shoeip, Khaled Elattar, Abd El Galil Khalil

Turkish Journal of Chemistry

This review represents a systematic and comprehensive survey of the methods of preparation and the chemical reactivity of 2-aminoanthraquinone. This compound is an important intermediate for the synthesis of a variety of otherwise difficult to obtain synthetically useful and novel heterocyclic systems.

Modeling The Vertical Distributions Of Downwelling Plane Irradiance And Diffuse Attenuation Coefficient In Optically Deep Waters, X. J. Pan, Richard C. Zimmerman

OES Faculty Publications

The diffuse attenuation coefficient Kᵈ is critical to understand the vertical distribution of underwater downwelling irradiance (Eᵈ). Theoretically Eᵈ is composed of the direct solar beam and the diffuse sky irradiance. Applying the statistical results from Hydrolight radiative transfer simulations, Kᵈ is expressed into a mathematical equation (named as PZ06) integrated from the contribution of direct solar beam and diffuse sky irradiance with the knowledge of sky and water conditions. The percent root mean square errors (RMSE) for the vertical distribution of Eᵈ(z) under various sky and water conditions between PZ06 and Hydrolight results are typically less than 4%. Field …

The Widespread Occurrence Of Coupled Carbonate Dissolution/Reprecipitation In Surface Sediments On The Bahamas Bank, David J. Burdige, Xinping Hu, Richard C. Zimmerman

OES Faculty Publications

Using two complimentary approaches (pore water advection/diffusion/reaction modeling and stable isotope mass balance calculations) we show that carbonate dissolution/reprecipitation occurs on early diagenetic time scales across a broad range of sediments on the Great Bahamas Bank. The input of oxygen into the sediments, which strongly controls sediment carbonate dissolution, has two major sources belowground input by seagrasses (that is, seagrass O₂ pumping), and permeability-driven advective pore water exchange. The relative importance of these O₂ delivery mechanisms depends on both seagrass density, and on how bottom water flow interacts with the seagrass canopy and leads to this advective exchange. …

The Path To Preservation: Using Proteomics To Decipher The Fate Of Diatom Proteins During Microbial Degradation, Brook L. Nunn, Ying S. Ting, Lars Malmström, Yihsuan S. Tsai, Angela Aquier, David R. Goodlett, H. Rodger Harvey

OES Faculty Publications

We drew upon recent advances in tandem mass spectrometry-based proteomic analyses in order to examine the proteins that remain after a diatom bloom enters the stationary phase, precipitates out of the photic zone, and is subjected to microbial degradation over a 23-d period within a controlled laboratory environment. Proteins were identified from tandem mass spectra searched against three different protein databases in order to track proteins from Thalassiosira pseudonana and any potential bacterial contributions. A rapid loss of diatom protein was observed over the incubation period; 75% of the proteins initially identified were not detected after 72 h of exposure …

Effect Of The Heterotrophic Dinoflagellate Oxyrrhis Marina And The Copepod Acartia Tonsa On Vertical Carbon Flux In And Around Thin Layers Of The Phytoflagellate Isochrysis Galbana, A. B. Bochdansky, S. M. Bollens, G. C. Rollwagen-Bollens, A. H. Gibson

OES Faculty Publications

Dynamics of material and energy flow through food webs differ when resources are allocated in patches in comparison to situations in which the same resources are distributed evenly throughout the water column. Thin layers of plankton are special cases of such resource patches. While previous studies have predominantly focused on the response of organisms to these layers, we investigated how 2 types of grazers in turn affect thin layers. In an experimental study with tightly controlled environmental conditions, we monitored the redistribution of particulate organic (POC), dissolved organic (DOC) and inorganic (DIC) carbon from thin layers of Isochrysis galbana. …

Role Of Macroscopic Particles In Deep-Sea Oxygen Consumption, Alexander B. Bochdansky, Hendrik M. Van Aken, Gerhard J. Herndl

OES Faculty Publications

Macroscopic particles (> 500 µg), including marine snow, large migrating zooplankton, and their fast-sinking fecal pellets, represent primary vehicles of organic carbon flux from the surface to the deep sea. In contrast, freely suspended microscopic particles such as bacteria and protists do not sink, and they contribute the largest portion of metabolism in the upper ocean. In bathy- and abyssopelagic layers of the ocean (2,000-6,000 m), however, microscopic particles may not dominate oxygen consumption. In a section across the tropical Atlantic, we show that macroscopic particle peaks occurred frequently in the deep sea, whereas microscopic particles were barely detectable. In …

Causes Of Tropical Atlantic Paleo-Salinity Variation During Periods Of Reduced Amoc, Xiuquan Wan, Ping Chang, Matthew W. Schmidt

OES Faculty Publications

During periods of reduced Atlantic meridional overturning circulation (AMOC) associated with a freshening of northern North Atlantic surface water, paleo proxy records indicate a corresponding surface salinity increase over the entire tropical Atlantic. Although latitudinal-shifts in the mean position of the Atlantic Intertropical Convergence Zone (ITCZ) can explain certain features of the paleo salinity reconstructions, this mechanism does not offer an explanation for the reconstructed basin-wide paleo-salinity response to AMOC change. Here, we present new results from general circulation model simulations that suggest the sea surface salinity (SSS) increase in the tropical north Atlantic during periods of weakened AMOC is …

Workshop Report From Web2se: First Workshop On Web 2.0 For Software Engineering, Christoph Treude, Margaret-Anne Storey, Kate Ehrlich, Arie Van Deursen

Research Collection School Of Computing and Information Systems

Web 2.0 technologies such as wikis, blogs, tags and feeds have been adopted and adapted by software engineers. With Web2SE, we provide a venue for pertinent work by highlighting current state-of-the-art research, by identifying research areas, and by discussing implications of Web 2.0 on software engineering. This paper reports on the paper presentations and the discussions among participants at Web2SE 2010 as well as on future directions of the Web2SE community.

Periodic Resource Reallocation In Two-Echelon Repairable Item Inventory Systems, Hoong Chuin Lau, Jie Pan, Huawei Song

Research Collection School Of Computing and Information Systems

Given an existing stock allocation in an inventory system, it is often necessary to perform reallocation over multiple time points to address inventory imbalance and maximize availability. In this paper, we focus on the situation where there are two opportunities to perform reallocation within a replenishment cycle. We derive a mathematical model to determine when and how to perform reallocation. Furthermore, we consider the extension of this model to the situation allowing an arbitrary number of reallocations. Experimental results show that the two-reallocation approach achieves better performance compared with the single-reallocation approach found in the literature. We also illustrate how …

Accuracy Of Real Time Radiography Burning Rate Measurement, Bisola Olaniyi

Theses

The design of a solid propellant rocket motor requires the determination of a propellant's burning-rate and its dependency upon environmental parameters. The requirement that the burning-rate be physically measured, establishes the need for methods and equipment to obtain such data. A literature review reveals that no measurement has provided the desired burning rate accuracy. In the current study, flash x-ray modeling and digitized film-density data were employed to predict motor-port area to length ratio. The pre-fired port-areas and base burning rate were within 2.5% and 1.2% of their known values, respectively. To verify the accuracy of the method, a continuous …

Gera Conference Program [2010], Gera

Georgia Educational Research Association Conference

Conference program for 2010.

Proceedings Of The Fourth Annual Meeting Of The Georgia Association Of Mathematics Teacher Educators Introductory Texts

Proceedings of the Annual Meeting of the Georgia Association of Mathematics Teacher Educators

Contents of 1st Annual GAMTE Proceedings Front Matter:

• Proceedings Committee
• Officers of GAMTE
• Purposes and Goals of GAMTE
• Table of Contents

International Law In Domestic Courts: A Conflict Of Laws Approach, Ralf Michaels, Karen Knop, Annelise Riles

Faculty Scholarship

The relationship between international law and domestic law is rarely understood as a conflict of laws. Understanding it in this way opens up a parallel with the field of conflict of laws: the field for which the relationship between legal systems, especially the role of another system's jurisdiction, laws, and judgments vis-à-vis the domestic legal system, are exactly the bread-and-butter issues. We argue for such an approach to international law in domestic courts: an approach that we elaborate as "theory through technique." In our view, conflicts should be seen broadly as the discipline that developed to deal with conflicts between …

Leverhulme Lecture: The Future Of Securitization, Steven L. Schwarcz

Faculty Scholarship

Lecture given November 11, 2010, the third of three delivered by Prof. Schwarcz as Leverhulme Visiting Professor of Law, Oxford University.

The securitization of subprime mortgage loans is widely viewed as a root cause of the financial crisis. This lecture balances the costs and benefits of securitization, focusing on what went wrong and on what needs to be fixed to curtail securitization’s abuses and make it viable again as an important financing tool. Finally, the lecture examines alternatives to securitization, focusing on covered bonds and comparing and contrasting covered bonds and securitization.

A Review Of Bast Fibres And Their Composites. Part 1 - Fibres As Reinforcements, John Summerscales, Nilmini P.J. Dissanayake, Amandeep S. Virk, Wayne Hall

School of Engineering, Computing and Mathematics

Bast fibres are defined as those obtained from the outer cell layers of the stems of various plants. The fibres find use in textile applications and are increasingly being considered as reinforcements for polymer-matrix composites as they are perceived to be "sustainable". The fibres are composed primarily of cellulose which potentially has a Young's modulus of similar to 140 GPa (being a value comparable with man-made aramid [Kevlar/Twaron] fibres). The plants which are currently attracting most interest are flax and hemp (in temperate climates) or jute and kenaf (in tropical climates). This review paper will consider the growth, harvesting and …

Parallel Synthesis Of An Oligomeric Imidazole-4,5-Dicarboxamide Library, Zhigang Xu, John C. Dicesare, Paul W. Baures

Chemistry: Faculty Publications (1990-2023)

A library of oligomeric compounds was synthesized based on the imidazole-4,5-dicarboxylic acid scaffold along with amino acid esters and chiral diamines derived from amino acids. The final compounds incorporate nonpolar amino acids (Leu, Phe, Trp), polar amino acids (Ser, Asp, Arg), and neutral amino acids (Gly, Ala), and were designed to be useful in screening for inhibitors of protein−protein interactions. Many of the protected and deprotected oligomers show evidence of conformational isomers persistent at room temperature in aqueous solution. A total of 317 final oligomers, out of 441 targeted compounds, were obtained in high analytical purity and of sufficient quantity …

A Review Of The Professionalization Of The Software Industry: Has It Made Software Engineering A Real Profession?, Heng Ngee Mok

Research Collection School Of Computing and Information Systems

Every industry strives to be called a "profession", and software engineering is no exception. This paper attempts to define "profession" from three different perspectives and provides a chronological narration of the professionalization efforts of major IT bodies such as the IEEE Computer Society, Association of Computing Machinery and British Computer Society to promote software engineering from "occupation" to "profession". The outcome of this professionalization process is then examined against the three vastly different definitions of "profession" to qualitatively gauge the success of the professionalization process.

Understanding Analysts Forecasts, R. J. Louth, P. Joos, S. E. Satchell, Guy Weyns

Research Collection School Of Accountancy

The purpose of this paper is to model analysts’ forecasts. The paper differs from the previous research in that we do not focus on how accurate these predictions may be. Accuracy may indeed be an important quality but we argue instead that another equally important aspect of the analysts’ job is to predict and describe the impact of jump events. In effect, the analysts’ role is one of scenario prediction. Using a Bayesian-inspired generalised method of moments estimation procedure, we use this notion of scenario prediction combined with the structure of the Morgan Stanley analysts’ forecasting database to model …

Advance (Spring 2010), Georgia Southern Division Of Continuing And Professional Education

Division of Continuing & Professional Education

No abstract provided.

Eagle Executive Magazine, Georgia Southern University

College of Business: News & Publications

• Georgia Southern’s First Ph.D.
• The “R” Us Partnership
• A message from Dean Shiffler
• New IS Scholarship
• 20th Annual Accounting Day
• Hala Moddelmog Returns to Arby’s
• Linda M. Bleicken Is Beta Gamma Sigma Honoree
• MBA Business Plan Development Competition
• Spotlight on Graduate Studies
• Alumni in the spotlight
• 2010 awards of excellences
• Dean’s Citations for Student Engagement
• The Forensic Accounting Board
• William A. Freeman Memorial Lecture
• Forensic Accounting Lecture
• Alumniville
• 4th Annual Banking Symposium
• Special Providence: Ori James and Annie Sula Brannen Moxley

Armstrong Atlantic State University 2010 Fact Book, Armstrong State University

Armstrong Office of Institutional Research: Armstrong Fact Books (Archived)

No abstract provided.

Iqbal And Empathy, Darrell A. H. Miller

Faculty Scholarship

This Essay argues that empathy does and should play an important, albeit limited role, in a judge’s decision making process. Specifically, empathy is essential for making correct, principled, and unbiased judgments, because empathy is one of the few means we have to understand human motivation. Empathy is a crucial cognitive mechanism that can help compensate for common cognitive bias. As such, empathy, appropriately restricted, should be an accepted and meaningful tool for judges to use in evaluating the sufficiency of complaints, especially as they relate to Iqbal’s plausibility pleading standard.

Scene Classification Using Spatial Pyramid Matching And Hierarchical Dirichlet Processes, Haohui Yin

Theses

The goal of scene classification is to automatically assign a scene image to a semantic category (i.e. "building" or "river") based on analyzing the visual contents of this image. This is a challenging problem due to the scene images' variability, ambiguity, and a wide range of illumination or scale conditions that may apply. On the contrary, it is a fundamental problem in computer vision and can be used to guide other processes such as image browsing, contentbased image retrieval and object recognition by providing contextual information. This thesis implemented two scene classification systems: one is based on Spatial Pyramid Matching …

Career Decisions: Goodness-Of-Fit And Attrition Of Teachers In Alternative Schools, Deidre S. Coulter

All-Inclusive List of Electronic Theses and Dissertations

Teachers are the most important element in theEducation system (Stronge, 2002). However, studies of teachers in certain sectors are lacking. The paucity of research on teachers who work in the alternative school environment was a driving force behind this study, which is a case study of the characteristics of alternative schools, perceptions of teacher training, attrition, and goodness-of-fit. Interviews with teachers, administrators, and support staff in an alternative school were used to investigate interactions between teachers and students and between colleagues. Classroom observations of the teachers were used to help explore the classroom climate. Emergent themes such as communication, administrative …

Comparison Of Pretenured And Tenured Engineering Professors', Monica F. Cox, Alene Harris

International Journal for the Scholarship of Teaching & Learning

Analyzing 36,000 strings of instructional data from fifteen faculty teaching twenty-eight courses over five semesters, the authors conducted a research study exploring differences in the pedagogical practices of pretenured and tenured faculty teaching innovative courses designed around the principles of the “How People Learn” (HPL) framework and of pretenured and tenured faculty teaching traditional, lecture-based courses. Consistent with previous research that reports that time is needed for pretenured faculty to become proficient teachers and with research that identifies lecture to be the primary teaching strategy used by engineering faculty, the current study provides additional insight into the types of pedagogical …

A Bi-Regional Cge Model Of The South West Housing Market, Sarah-Jane Keast

Plymouth Business School Theses

Volatility within the UK housing market is thought to be a significant factor driving instability in the wider macro economy. Research investigating the characteristics and behaviour of the housing market has suggested that under supply of housing is one of the key reasons for the high and increasing levels of house prices the nation has recently been experiencing. Consequently, much of the current government's housing policy is aimed at increasing the level of supply by reforming the planning system and increasing investment in the development of new housing. Under supply is also a major concern at the regional level, particularly …

Asymmetric Synthesis Of 8-O-4'-Neolignan Perseal B, Yamu Xia, Wei Wang, Yinglan Guo, Junfeng Li

Turkish Journal of Chemistry

Full details of an enantioselective total synthesis of 8-O-4'-neolignan perseal B are presented for the first time. The synthesis was achieved in 8 steps from vanillin and involved the asymmetric dihydroxylation reaction using AD-mix-\alpha to give the key intermedium (1S,2S)-1-(4-(benzyloxy)-3-methoxyphenyl)propane-1,2,3- triol, and the Mitsunobu reaction between phenylpropanoid and vanillin formed perseal B. The synthetic method of perseal B exhibits a new route for 8-O-4'-neolignan.

Synthesis, Characterization, Crystal Structures, And Antibacterial Activity Of Some New 1-(3,4,5-Trimethoxybenzoyl)-3-Aryl Thioureasreas, Aamer Saeed, Rasheed Ahmad Khera, Naeem Abbas, Muhammad Latif, Imran Sajid, Ulrich Flörke

Turkish Journal of Chemistry

Synthesis of some novel 1-(3,4,5-trimethoxy)benzoyl-3- arylthiourea derivatives (1a-o) was accomplished in 2 steps. The synthetic route involves the reaction of 1-(3,4,5-trimethoxy)benzoyl chloride with potassium thiocyanate in 1:1 molar ratio in acetone to afford the corresponding isothiocyante followed by treatment with suitably substituted anilines. The structures of the products were established by elemental analyses, IR, ^1H- and ^{13}C-NMR, and mass spectroscopy and for 1b and 1m from single crystal X-ray diffraction data. All of the synthesized compounds (1a-o) were screened for antibacterial activity against gram positive and gram negative bacterial strains and were found to exhibit low activity towards the tested …

Molecular Recognition Of Aromatic Amines By Coumarin Substituted Azacrown Ether, Hiten Mehta, Harjinder Kaur, Shobhana Menon

Turkish Journal of Chemistry

New chromogenic azacrown ether N[7-hydroxy-4-methyl-coumarin-8-methylene]-4-azadibenzo-18-crownether (HMCMADCE) was synthesised through the condensation reaction of 4-azadibenzo-18-crown- 6ether, 4-methyl,7-hydroxy coumarin and formaldehyde was used to investigate its behaviour towards the aromatic amines. All the aromatic primary amines gave specific colours in aqueous medium. The functional group recognition behaviour is further extended to study the estimation of the aromatic primary amine in commercial drug samples. The amines can be estimated in the presence of several functional groups like phenolic-OH, secondary and tertiary aromatic amines as well as aliphatic amines.