cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Kinetics and mechanism of the substitution reactions of some monofunctional Pd(II) complexes with different nitrogen-donor heterocycles
Creators: name: Kosović, Milica
name: Željko Jaćimović
name: Živadin D Bugarčić
name: Petrović, Biljana
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biological Sciences
subject: Sociology
subject: FOS: Sociology
subject: Chemistry
subject: Molecular Biology
subject: Biochemistry
subject: Biophysics

description: Substitution reactions of five monofunctional Pd(II) complexes, [Pd(terpy)Cl]+ (terpy = 2,2’;6’,2”-terpyridine), [Pd(bpma)Cl]+ (bpma = bis(2-pyridylmethyl)amine), [Pd(dien)Cl]+ (dien = diethylentriamine or 1,5-diamino-3-azapentane), [Pd(Me4dien)Cl]+ (Me4dien = 1,1,7,7-tetramethyldiethylenetriamine) and [Pd(Et4dien)Cl]+ (Et4dien = 1,1,7,7-tetraethyldiethylenetriamine), with unsaturated N-heterocycles such as 3-amino-4-iodo-pyrazole (pzI), 5-amino-4-bromo-3-methyl-pyrazole (pzBr), 1,2,4-triazole, pyrazole, pyrazine and imidazole were investigated in aqueous 0.10 M NaClO4 in the presence of 10 mM NaCl using variable-temperature stopped-flow spectrophotometry. The second-order rate constants k2 indicate that the reactivity of the Pd(II) complexes decrease in the order [Pd(terpy)Cl]+ > [Pd(bpma)Cl]+ > [Pd(dien)Cl]+ > [Pd(Me4dien)Cl]+ > [Pd(Et4dien)Cl]+. The most reactive nucleophile of the heterocycles is pyrazine, while the slowest reactivity is with pyrazole. Activation parameters were determined for all reactions and negative entropies of activation, ΔS≠, supporting an associative mode of substitution. The reactions between [Pd(bpma)Cl]+ and 1,2,4-triazole, pzI and pzBr were also investigated by 1H NMR to define the manner of coordination. These results could be useful for better explanation of structure-reactivity relationships of Pd(II) complexes as well as for prediction of potential targets of Pd(II) complexes toward common N-heterocycles, constituents of biomolecules and different N-bonding pharmaceutical agents.
Design of a ligand suitable for sensitive uranyl analysis in aqueous solutions
Creators: name: Albo, Yael
name: Buzaglo, Nina
name: Maimon, Eric
name: Zilbermann, Israel
name: Meyerstein, Dan
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Hematology
Science Policy
Biological Sciences
Chemistry
Earth and Environmental Sciences
Biotechnology
Pharmacology
Molecular Biology
Cell Biology
Biochemistry
Biophysics

description: Several ligands were designed as plausible reagents for the spectrophotometric analysis of uranyl in aqueous solutions. The ligand = 3,3′-(ethane-1,2-diylbis(methylazanediyl))bis(methylene)bis(4-hydroxybenzenesulfonate) was found to fit best the requirements. The results point out that carboxylate substituents compete with the phenolate substituents as binding sites to the central uranium cation and therefore decrease the usefulness of ligands containing both carboxylate and phenolate substituents as analytical spectrophotometric reagents.
Design of a ligand suitable for sensitive uranyl analysis in aqueous solutions
Creators: name: Albo, Yael
name: Buzaglo, Nina
name: Maimon, Eric
name: Zilbermann, Israel
name: Meyerstein, Dan
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Hematology
Science Policy
Biological Sciences
Chemistry
Earth and Environmental Sciences
Biotechnology
Pharmacology
Molecular Biology
Cell Biology
Biochemistry
Biophysics

description: Several ligands were designed as plausible reagents for the spectrophotometric analysis of uranyl in aqueous solutions. The ligand L32− = 3,3’-(ethane-1,2-diylbis(methylazanediyl))bis(methylene)bis(4-hydroxybenzenesulfonate) was found to fit best the requirements. The results point out that carboxylate substituents compete with the phenolate substituents as binding sites to the central uranium cation and therefore decrease the usefulness of ligands containing both carboxylate and phenolate subtituents as analytical spectrophotometric reagents.
ON THE AUTOMATIC REPAIR OF SMART CONTRACTS IN BLOCKCHAIN
Creators: name: Li, Zhen
Publisher: name: Purdue University Graduate School
Year: 2024
Subjects: classificationCode: 460406
subject: Software and application security

description: Blockchain technology, once the backbone of Bitcoin, has burgeoned into a powerhouse of potential, signaling a revolutionary shift across various sectors, including finance, supply chains, and digital identity. This paradigm shift, which replaces trust in centralized entities with a decentralized ledger of transparency, is rapidly gaining traction among global entities. Despite the promise, blockchain's smart contract evolution has also introduced significant risks, as demonstrated by notorious breaches like the DAO hack. This research offers a dual-focused inquiry into the technological sophistication and social implications of blockchain, particularly smart contracts, assessing both their promise and their perils. It meticulously examines their design, potential vulnerabilities, and recounts sobering lessons from historical breaches.To address these concerns, the study presents advanced strategies for vulnerability detection and proactive remedies, recognizing the critical need for security in our digitally convergent economy. In Chapter 3, a novel methodology is employed that uses a comprehensive dataset against advanced detection tools, aiming to address and mitigate vulnerabilities. Chapter 4 provides empirical evidence of the methodology's efficacy, underpinning a critical discussion with real-world applicability and challenges.Ultimately, this paper acts as a clarion call for vigilant and innovative strides in blockchain security, emphasizing the technology's vast capabilities against the need for solidified trust. It invites the global research community to join a collaborative effort in addressing the open challenges and fostering advancements to ensure the safe expansion of blockchain technology.
Utilizing macroalgae for heavy metal remediation of effluents from industrial wastewater
Creators: name: Baitman, Benjamin
name: Chang, Justin
name: Croce, Bryan
name: Parker, Joshua
name: Seibert, Paul
name: Weiss, Emma
name: Weller, Joseph
name: Zhou, Wen
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: Civil & Environmental Engineering
ENGR
Team CYCLE
Gemstone
Algae
Heavy metals
Biosorption

description: Algae as a biosorbent is an emerging technology that offers a renewable and economically efficient means of removing heavy metals from wastewater effluent. While there are a multitude of studies demonstrating the effectiveness of algae as a heavy metal adsorbent, there are a lack of studies that attempt to use algal biosorption as their primary removal method. This study looks to examine the biosorption efficiency of inactive algae strands Spirilina and Uluthrix in a non batch reactor. Tannery effluent is used as a model for a generalized heavy metal effluent, because it is well defined in the literature. The algae was analyzed first at a lab scale to determine the maximum carrying capacity of the algae, examining the optimal conditions for adsorption. Our laboratory results are currently being run to determine optimal pH, temperature, and contact time for adsorption. A pilot scale system is currently being tested to determine how well a system can implement this novel approach to biosorption.
The prevalence of extended spectrum beta-lactamases (ESBLs) among Escherichia coli and Klebsiella species urinary isolates from Abia state university teaching hospital (ABSUTH) aba, Abia State Nigeria
Creators: name: Iqbal, Zahid
name: I. L. Nwosu1*
name: E. S. Amadi2
name: C. E. Nwanyanwu2
name: C. I. Chikwendu2
name: C. L. Madu2
Publisher: name: figshare
Year: 2015
Subjects: subject: Biotechnology
subject: Microbiology
subject: FOS: Biological sciences
subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences
subject: Zoology
subject: Molecular Biology
subject: Genetics

description: The prevalence of extended spectrum β-lactamases among 246 clinical isolates from Abia State
University teaching Hospital patients was investigated.The isolates were made up of 134 Escherichia coli and 112 Klebsiella species. Antimicrobial susceptibility of the isolates was determined by the disc diffusion method.ESBL phenotypes were determined by the double disc synergy method using ceftazidime, cefotaxime, ceftriaxone and co-amoxiclav. Out of the 246 isolates, 125 (50.8%) were ESBL producers, made up of 62(50.8%) E.coli and 63 (50.4%) Klebsiella isolates. Seventeen (54.8%) of the ESBL producing E. coli isolates were from in-patients while 45 (47.9%) were from out-patients.For the ESBL positive Klebsiella spp., 14 (45.2%) and 49 (52.1%) were from in-patients and outpatients respectively. ESBL producing isolates were also found to be more prevalent among the female patients (72.8%) than among the male patients (27.2%). The isolates also expressed high rates of resistance to other classes of antibiotics tested. However, Amikacin was found to have excellent performance against the urinary isolates tested and therefore is recommended for the treatment of infections caused by Escherichia coli and Klebsiella species. This study shows high prevalence of ESBL producing E. coli and Klebsiella isolates clinical samples of patients attending the Abia State University Teaching Hospital Aba, Abia State Nigeria.
Gradation of Porcine Bladder ECM in Hydrogels for Chronic Wound Treatment
Creators: name: Allbritton-King, Jules
name: Kimicata, Megan
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: Bioengineering
ENGR
Allbritton-King
Tissue Engineering
Hydrogels
Chronic Wounds

description: Chronic, nonhealing wounds affect about 6.5 million individuals in the U.S., and often present as comorbidities of other prevalent conditions such as obesity and diabetes. Chronic wounds are characterized by a recurring inflammatory state without progression to the proliferation and remodeling stages of wound healing. Around $25 billion is spent annually on treatment of chronic wounds; however most traditional wound care approaches do not effectively encourage the physiological healing process. One emerging treatment option is extracellular matrix (ECM)-based wound dressings, which are composed of a network of proteins and other macromolecules that support and anchor cells within tissue. These dressings are typically composed of decellularized tissue derived from animal donors and provide a protein scaffold that mimics dermal ECM by facilitating cell adhesion. Most commercially available ECM-based dressings are dry, uniform sheets of ECM that provide a structural scaffold for cellular growth, but do not provide a physiologically relevant moisture balance or encourage cellular infiltration into the dressing as the wound heals. However, fibroblasts, which play a major role in wound healing, have been shown to migrate to regions of denser ECM concentrations, where they exhibit enhanced metabolic activity and proliferation. A UBM-based hydrogel will serve as an alternative wound dressing that will mitigate the issues with current ECM-based products. A hydrogel dressing offers a more physiologically relevant moisture balance to the site of the wound, while integrated structural cues will encourage fibroblast infiltration. Ultimately, this approach will increase the rate at which ulcers heal and prevent further deterioration of the wound site, in turn lessening the physical and financial burden on patients.
To Regulate Immigration, Only 4 in 10 Favor Building a Wall, While 7 in 10 Favor Requiring Employers to Use E-Verify System, More Guest Worker Visas
Creators: name: Kull, Steven
name: Fehsenfeld, Evan
name: Lewitus, Evan
name: Read, Emmaly
Publisher: name: Digital Repository at the University of Maryland
Year: 2019
Subjects: immigration
border wall
e-verify
visas
green cards
farm worker visas
115th Congress
S. 792
H.R. 4207
H.R. 6136
H.R. 6417
H.R. 3440
H.R. 4796

description: A policymaking simulation is an online process that puts citizens in the shoes of elected officials by simulating the process they go through in making policy decisions. Each simulation introduces a broader policy topic and then presents a series of modules that address a specific policy option that is currently under consideration in the current discourse. For each module, respondents: 1) receive a short briefing on a policy issue and the option or options for addressing it; 2) evaluate arguments for and against the policy options; and 3) finally, make their recommendation for what their elected officials should do.
description: An in-depth survey finds that, to discourage illegal immigration, only 4 in 10 favor building a wall, rather a bipartisan majority of 72% favor requiring employers to use the E-Verify system to ensure that the people they hire have the legal right to work in the United States. At the same time, to meet demands for labor 69% favor substantially increasing guest worker visas. To ensure that respondents understood the issue, they were given a short briefing on the US immigration program and a number of possible reforms in proposed Congressional legislation. For the current programs that provide green cards to family members of citizens and permanent residents, large bipartisan majorities oppose eliminating any of the programs, and overall majorities opposed reducing their current numbers. However, majorities of Republicans favor reducing the number of green cards granted in these programs.
Improved Forced Choice Assessment of Negative Leadership
Creators: name: Cheng, Virginia
name: Epistola, Jordan
name: Grand, James
name: Hanges, Paul
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: subject: Psychology
subject: FOS: Psychology
subject: BSOS
subject: Dynamical Systems Lab
subject: I/O Psychology
subject: Scale Development
subject: Item-Response Theory
subject: Leadership

description: Leadership research has historically tended to focus on the positive qualities of leaders. This perspective has changed in recent years as research has focused on more negative leadership behaviors. A variety of new constructs have now been introduced on negative leadership, however, the methods most commonly used to measure these constructs (e.g., Likert-type scales in which respondents directly rate the negative behaviors of their leader) are vulnerable to socially desirable responding and cognitive processing biases. The present research seeks to address this problem by developing an alternative and more robust means for assessing negative leadership behaviors. Specifically, we integrate Schmidt’s (2008) five-factor measure of negative leadership with recent work in forced-choice assessment methodologies and ideal-point IRT (item response theory) models. The result is a newly developed forced-choice measure of negative leadership. The construct validity of our new measure is presented in this poster. Results indicate that our measure produces more conceptually distinct dimensions of negative leadership while maintaining high convergent validity with Schmidt’s (2008) original measure.
Understanding Substance Reuse Among Sexual and Gender Minority Individuals With HIV
Creators: name: Tralka, Hannah
name: Belus, Jennifer
name: Satinsky, Emily
name: C.J., Seitz-Brown
name: Daughters, Stacey
name: Magidson, Jessica
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: subject: Psychology
subject: FOS: Psychology
subject: BSOS
subject: Tralka
subject: MSS
subject: sexual and gender minorities
subject: people living with HIV
subject: substance use

description: Research shows that people living with HIV (PLWH) who are of sexual and gender minority (SGM) status experience higher rates of substance use disorders (SUDs) compared to heterosexual, cisgender individuals; however, there is a lack of research examining substance use treatment outcomes among individuals with multiple minority statuses. This study explored a multiple minority PLWH population to examine how SGM status influences time to substance reuse, frequency of use, and substance use related problems. Participants included 56 PLWH with problematic substance use who were enrolled in an abstinence-focused inpatient substance use treatment center in Washington, DC. Participants completed 16 sessions and were followed over 12 months post treatment. A discrete time to event logit model was used to examine whether SGM status moderated time to reuse. A total of n=21 individuals self-identified as SGM and n=35 identified as non-SGM. Approximately 64% of the sample returned to substance use at least once over the 12 months. At the end of 12-month follow-up, the survival rate was 20.5% of the overall sample. In the non-SGM group, the survival rate was 37.6% compared with 4.8% in the SGM group. The overall time to event model was significant ( λ2= 25.46, p
wikidata: a central hub of linked open life science data
Creators: name: Waagmeester, Andra
name: Mitraka, Elvira
name: Good, Benjamin M.
name: Burgstaller-Muehlbacher, Sebastian
name: Pavlidis, Paul
name: Fu, Gang
name: Schriml, Lynn
name: Su, Andrew I.
Publisher: name: figshare
Year: 2015
Subjects: subject: Diseases
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology

description: Data in the life sciences are abundant, but dispersed over many different resources. However, for the onset of research these different resources need to be integrated. Although the Semantic Web has been proposed as a potential solution for rapid knowledge integration, most data remains in their different data silos, which expand continually, worsening the knowledge integration challenge. In the last decade, Wikipedia has been successful in becoming one of the most important sources of information on the web. Wikipedia thrives on the community for its curation. One of the partner projects currently is Wikidata, which is a public and free linked database using the same principles of community curation. Here we report on our effort to make Wikidata a central hub for linked open life science data. Doing so not only provides a linked data platform of said data, but also opens up the potential of the Wikidata community at large for curating and putting the different data sources under scrutiny. Our game plan is to (1) develop bots to publish knowledge from established data sources on genes, diseases and drugs on Wikidata, (2) harvest links between these entities and enrich the respective Wikidata entities with these relations, and (3) engage the community in curating the knowledge at hand by developing applications to disseminate the content to a wider audience. Here, we report the first milestones, being Wikidata entries on all human genes from Entrez Gene and the diseases from the Disease Ontology. Within days upon first publication of these entries, the curation power of Wikidata became visible by some valuable improvements made by the community. Our next goals are to add gene-disease, drug-disease and gene-drug relationships.
Synthesis of New Pyrazolo[1,5-α]quinazoline Derivatives
Creators: name: Kovács, Dániel
name: Molnár-Tóth, Judit
name: Blaskó, Gábor
name: Fejes, Imre
name: Nyerges, Miklós
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Microbiology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Molecular Biology
subject: Biochemistry

description: The reaction of various anthranilic acid derivatives or their esters with 4-oxotetrahydrothiophene-3-carbonitrile 2, 2-oxocyclopentanecarbonitrile (9, n = 1) or 2-oxocyclohexanecarbonitrile (9, n = 2) in ethanol under reflux conditions giving rise the formation of single products isolated in each case after simple filtration. The products were characterized as pyrazolo[1,5-a]quinazolin-5-ones 4 instead of the expected pyrazol-3-amines 3. These cascade condensation–intramolecular acylation processes generated in one-step reactions from simple starting materials novel heterocyclic scaffolds ready for further functionalization. The present synthetic protocol provides acceptable yields of new tetracyclic products in high purity.
The first Central American chalicothere (Mammalia, Perissodactyla) and the paleobiogeographic implications for small-bodied schizotheriines
Creators: name: Wood, Aaron R.
name: Ridgwell, Nicole M.
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Science Policy
Cancer
Biological Sciences
Chemistry
Earth and Environmental Sciences
Biochemistry

description: SUPPLEMENTAL DATA—Supplemental materials are available for this article for free at www.tandfonline.com/UJVP
Synthesis of New Pyrazolo[1,5-a]Quinazoline Derivates
Creators: name: Kovács, Dániel
name: Molnár-Tóth, Judit
name: Blaskó, Gábor
name: Fejes, Imre
name: Nyerges, Miklós
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Microbiology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Molecular Biology
subject: Biochemistry

description: Synthesis of New Pyrazolo[1,5-a]Quinazoline Derivates
Call for training tender - closed
Creators: name: Lombardy Green Chemistry Association
Publisher: name: Zenodo
Year: 2022
Subjects: training
bioecononomy
hemp
call for tender

description: This report describes the development and the structure of the Call for training tender aimed at recruiting experts for cluster management capacity and skills building to develop a training programme for 14 cluster managers (2 from each cluster). The call was launched in September 2022 and it is now closed.
Examining the Interactive Effect of Conformity to the Thinness Ideal and Depression on Risky Sexual Behavior
Creators: name: Prescod, Emma
name: Ballentine, Holly
name: Hoang, Michelle
name: Littleton, Jessica
name: Sherman, Roberta
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: psychology
BSOS
Prescod
FIRE
risk-taking propensity

description: Compared to White women, Black women are at increased risk for HIV and sexually transmitted infections (CDC, 2018). Previous research on predominantly White women has shown that negative body image reflects conformity to the thinness ideal (James et al., 2001) and predicts high-risk sexual behaviors (Larson et al., 2011; Kvalem et al., 2011). This may have similar relevance for Black women in conferring risk—and this effect may be amplified by depressive symptoms (Thames et al., 2018). We focus on young adulthood given the greater saliency of thinness norms and increased risky sexual behavior during this period (Voelker et al., 2015). It was hypothesized that the relationship between conformity to the thinness ideal and risky sexual behavior is moderated by depressive symptoms such that for women who are relatively higher on depressive symptoms, there will be an increased effect. A community sample of 117 self-identified African American/Black women (M age=21, SD=2.25) were recruited from the Washington, D.C. area. Participants completed self-report measures of thinness conformity (modified version of the Conformity to Feminine Norms Inventory; Mahalik et al., 2005), depressive symptoms (Depression Subscale of the Brief Symptom Inventory; Derogatis, 2001), and sexual risk behavior (Youth Risk Behavior Surveillance System; CDC, 2013). Depressive symptoms moderated the effect of thinness ideal on risky sexual behavior (b =-.03, p =.039), but only for women who were relatively high on depressive symptoms. Moreover, this effect was in the negative direction, contrary to our hypothesis. For women at the mean level of depressive symptoms as well as those below the mean level, there was no effect of thinness ideal on risky sexual behavior. Overall, the model predicted 5% of the variance in risky sexual behavior, F(3,79)=3.19, p =.028. The current findings indicate that women who are nonconforming to feminine norms (e.g., thinness ideal) may externalize depressive symptoms in ways associated with traditional masculinity (e.g., risky sexual behavior). Future research should examine if the thinness ideal adequately applies to African American women.
PULSE GENERATION AND ANALYSIS OF ULTRA WIDE BAND SYSTEM MODEL
Creators: name: Goyal, Vikas
Publisher: name: figshare
Year: 2015
Subjects: Computer Engineering

description: This paper gives an introduction to one of the revolutionary technology for wireless communication - Ultra-Wideband (UWB) radio. Ultra-Wideband (UWB) technology is loosely defined as any wireless transmission scheme that occupies a bandwidth of more than 25% of a center frequency, or more than 1.5GHz. Ultra wideband (UWB) technology, useful for both communication and sensing applications, uses the radio spectrum differently than the vast majority of radio communication technologies.
STABILIZING THE FUTURE: ELECTRIC SPRING CONTROL TECHNIQUES USING ACOQPCI FOR ROBUST POWER GRIDS
Creators: name: Zhenhua, Li Chen
Publisher: name: Continental Journal
Year: 2024
Subjects: Electric Spring (ES), Renewable Energy Integration, Power Grid Stability, Control Strategies, Voltage Fluctuations

description: The integration of large-scale renewable energy sources into the power grid has become increasingly important in recent years, driven by concerns over energy sustainability and environmental impact. However, the intermittent and unpredictable nature of renewable energy generation has led to power supply and demand imbalances, resulting in voltage and frequency fluctuations and harmonic pollution. To tackle these challenges, the first-generation Electric Spring (ES-1) was introduced, providing reactive power compensation to stabilize critical load voltage. Compared to traditional demand-side management and energy storage solutions, Electric Spring technology offers real-time and seamless control of load voltage during grid voltage fluctuations.

This abstract provides an overview of the advancements in Electric Spring technology, emphasizing its role in addressing power grid challenges related to renewable energy integration. It explores the evolution of ES topology structures and control strategies, focusing on ES-2. Current research efforts are directed towards enhancing the performance of Electric Springs through innovative control schemes and optimization algorithms, including phase control, Proportional Resonant controller with grid voltage feedforward, fuzzy PI algorithms, and variable universe PI control. These control strategies are continually evolving to exhibit greater robustness, adaptability to nonlinearity, and intelligence
IMPACT OF NEXT GENERATION WIRELESS LAN ON LEGACY DEVICES
Creators: name: Goyal, Vikas
Publisher: name: figshare
Year: 2015
Subjects: Computer Engineering

description: The next generation wireless LAN Technology which offers new challenges and opportunities called 802.11n is a set of IEEE standard specification. It promises for designing and delivering data on wireless networking that is four to six times faster than earlier 802.11a/g (legacy WLAN devices) networks and improve transmission range. It has been proven that the 802.11n technology having wide bandwidth channel that satisfy next generation application and maintaining backward compatibility with previous generations of hardware by making two comparison. The first comparison has been made between different Legacy Devices on 802.11n to show throughputs of these devices. The second comparison has been made between the rate and range to evaluate the effect of higher rate on both sides of the link. The next-generation WLAN would also need to provide native support for wireless voice and video, with high levels of accessibility, availability, and security to reduce service-impacting incidents.
A PERFORMANCE AND ANALYSIS OF EZW ENCODER FOR IMAGE COMPRESSION
Creators: name: Goyal, Vikas
Publisher: name: figshare
Year: 2015
Subjects: Computer Engineering

description: Current image coding systems use wavelet transform, which decompose the image into different levels, where the coefficients in each sub band are uncorrelated from coefficients of other sub bands. As a result the coefficients in each sub band can be quantized independently of coefficients in other sub bands with no significant loss in performance. But the coefficient in each sub band requires different amount of bit resources to obtain best coding performance. This results in different quantizer with each sub band having its own bit rate. This gives an issue to bit allocation under image processing. Hence sub band coding can be used for achieving high bit rate. Embedded zerotree wavelet (EZW) encoder is designed to use wavelet transform. EZW coding exploits the multi-resolution properties of the wavelet transform to give a computationally simple algorithm with better performance. A performance analysis of image compression system for various formats of image is considered with EZW based on different wavelets.
The main purpose of this paper is to investigate the impact of different wavelets on image compression using EZW. The effect of the level of wavelet decomposition on compression efficiency is analyzed. The Haar, Dauhechies 4 and bio-orthogonal wavelets are used. The compression simulations are done on few modalities of images. The qualitative and quantitative results of these simulations are presented.
Sense Vocabulary Compression through the Semantic Knowledge of WordNet for Neural Word Sense Disambiguation - Model Weights - SC+WNGC, hypernyms, single
Creators: name: Vial, Loïc
Publisher: name: Zenodo
Year: 2019

description: This is the weights of the neural WSD model used in the article named "Sense Vocabulary Compression through the Semantic Knowledge of WordNet for Neural Word Sense Disambiguation" by Loïc Vial, Benjamin Lecouteux, Didier Schwab. This is a single model trained on the SemCor+WNGC corpora and using the sense vocabulary compression through hypernyms described in the paper.
title: Molecular Characteristics of the Water Soluable Organic Matter in Size Resolved Aerosols Collected Over the North Atlantic Ocean
Creators: name: Gurganus, Sarah Catherine
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2013

description: Aerosol particulate matter is acknowledged to have effects on health and the environment and further investigation into the molecular characteristics of aerosols is necessary in order to fully understand the potential links between the molecular characteristics and the impacts that these particles have on health and the environment. Aerosols are often discussed with reference to their size because particles of different sizes can often be associated with different primary sources. This study presents a molecular-level chemical characterization of the water soluble organic matter fraction of 17 aerosol impactor samples representing 3 air mass influences (North American, North African, and marine) collected over the North Atlantic Ocean as part of the 2011 US GEOTRACES cruise via electrospray ionization Fourier transfor1n ion cyclotron resonance mass spectrometry. Aerosol water soluble organic matter of the different size fractions within each sample showed unique molecular-level chemical characteristics, with the smallest size fractions showing the biggest differences. The results suggest that the water soluble organic matter complexity lies in the fine fraction of North American and North African-influenced aerosols, and in the coarser fraction of marine-influenced aerosols. The presence of highly oxidized compounds in the fine fractions indicates atmospheric aging. Carboxylic acid-like compounds were identified in the coarse fractions of each sample. The presence of these compounds could play a role in metal-ligand binding which may increase the solubility of metals in aerosols. Condensed compounds, which can affect the global climate by absorbing solar radiation, were detected in all size fractions, indicating their ubiquitous nature in the atmosphere. The remarkable differences between the molecular characteristics of the water soluble organic matter from the coarser and finer size fractions in these samples demonstrates the importance of collecting size resolved aerosols in order to obtain a full molecular characterization of the aerosol water soluble organic matter.
Size and Shape Analysis of Error-Prone Shape Data
Creators: name: Jiejun Du
name: Dryden, Ian L.
name: Xianzheng Huang
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: Mathematics
subject: FOS: Mathematics
subject: Information and Computing Sciences
subject: Biological Sciences
subject: Pharmacology

description: We consider the problem of comparing sizes and shapes of objects when landmark data are prone to measurement error. We show that naive implementation of ordinary Procrustes analysis that ignores measurement error can compromise inference. To account for measurement error, we propose the conditional score method for matching configurations, which guarantees consistent inference under mild model assumptions. The effects of measurement error on inference from naive Procrustes analysis and the performance of the proposed method are illustrated via simulation and application in three real data examples. Supplementary materials for this article are available online.
ABO phenotype protected reproduction as it is based on specific fucosylations.
Creators: name: Arend, Peter
Publisher: name: figshare
Year: 2016
Subjects: subject: Hematology
subject: Medicine
subject: Biochemistry
subject: Cancer
subject: Biological Techniques
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Chemistry
subject: Molecular Biology
subject: Stem Cells
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Anatomy

description: The molecular biological relations between the formation of the ABO(H) blood group phenotype and human fertility is evident in the rare (Oh) or Bombay blood type, which Charles Darwin would have interpreted as resulting from reduced fertility in consanguinities, based on the history of his own family, the Darwin/Wedgewood Dynasty. In its native form, the Bombay type occurs in individuals with an extremely rare genotype (h/h; se/se), which does not produce the fucosyltransferases FUT1and FUT2 encoded on chromosome 19 due to point mutations. In fact, the Bombay type individual cannot synthesize the fucosyl residues or H- receptor, which in epistatic connection with the A- and B-allelic glycotransferases, encoded on chromosome 9, provides the structural basis for the formation of ABO(H) phenotypes on the cell surfaces, secretions and plasma proteins, such as van Willebrand factor (vWF), clotting factor VIII and α2-macroglobulin (A2M). The innate isoagglutinins instead show extremely high levels of a mercaptoethanol-sensitive, complement-binding anti-H reactivity, acting over a wide range of temperatures, with an amplitude at 370C. This reactivity appears to be dominated by immunoglobulin M (IgM), hypothetically promoting anti-self-reactive antibody-dependent cytotoxicity (ADCC), which usually is restricted to immunoglobulin G (IgG) and is not exerted by normal IgM, but most likely is exerted by defucosylated IgM. Alternatively, the unusual temperature amplitude of the anti-H-reactive IgM, characteristic for the Bombay type plasma, highly suggests the involvement of IgG, and most examples of IgM apparently have significant IgG components. While the anti-H reactivity of Bombay type plasma thus indicates the functions of several immunoglobulin classes, the defucosylation of these immunoglobulins is genetically identical with that of the cell surfaces, and also results from the lack of FUT1/ FUT2 encoding on chromosome 19. In fact, the FUT1/FUT2-fucosylated, ABO/H)-reactive A2M, which is depleted in the Bombay type individual, works synergistically with the structurally related, ancestral IgM molecule. Consequently, in the Bombay type individual, the non-somatic glycosylation processes, which occur during embryogenic stem cell-to-germ cell transformation, are exposed to poorly fucosylated, glycan-depleted immunoglobulins initiating a complex anti-self-reactivity in male gamete performances.
ABO phenotype protected reproduction as it is based on specific fucosylations.
Creators: name: Arend, Peter
Publisher: name: figshare
Year: 2016
Subjects: subject: Hematology
subject: Medicine
subject: Biochemistry
subject: Cancer
subject: Biological Techniques
subject: Immunology
subject: FOS: Clinical medicine
subject: Computational Chemistry
subject: Molecular Biology
subject: Stem Cells
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Anatomy

description: The molecular biological relations between the formation of the ABO(H) blood group phenotype and human fertility is evident in the rare (Oh) or Bombay blood type, which Charles Darwin would have interpreted as resulting from reduced fertility in consanguinities, based on the history of his own family, the Darwin/Wedgewood Dynasty. In its native form, the Bombay type occurs in individuals with an extremely rare genotype (h/h; se/se), which does not produce the fucosyltransferases FUT1and FUT2 encoded on chromosome 19 due to point mutations. In fact, the Bombay type individual cannot synthesize the fucosyl residues or H- receptor, which in epistatic connection with the A- and B-allelic glycotransferases, encoded on chromosome 9, provides the structural basis for the formation of ABO(H) phenotypes on the cell surfaces, secretions and plasma proteins, such as van Willebrand factor (vWF), clotting factor VIII and α2-macroglobulin (A2M). The innate isoagglutinins instead show extremely high levels of a mercaptoethanol-sensitive, complement-binding anti-H reactivity, acting over a wide range of temperatures, with an amplitude at 370C. This reactivity appears to be dominated by immunoglobulin M (IgM), hypothetically promoting anti-self-reactive antibody-dependent cytotoxicity (ADCC), which usually is restricted to immunoglobulin G (IgG) and is not exerted by normal IgM, but most likely is exerted by defucosylated IgM. Alternatively, the unusual temperature amplitude of the anti-H-reactive IgM, characteristic for the Bombay type plasma, highly suggests the involvement of IgG; moreover, most examples of IgM apparently have significant IgG components. While the anti-H reactivity of Bombay type plasma thus indicates the functions of several immunoglobulin classes, the defucosylation of these immunoglobulins is genetically identical with that of the cell surfaces, and also results from the lack of FUT1/ FUT2 encoding on chromosome 19. In fact, the FUT1/FUT2-fucosylated ABO/H)-reactive A2M, which is depleted in the Bombay type individual, works synergistically with the structurally related, ancestral IgM molecule. Consequently, in the Bombay type individual, the non-somatic glycosylation processes, which occur during embryogenic stem cell-to-germ cell transformation, are exposed to poorly fucosylated, glycan-depleted immunoglobulins initiating a complex anti-self-reactivity in male gamete performances.
ОСТЕОПОРОЗ, СВЯЗАННЫЙ С БЕРЕМЕННОСТЬЮ И ЛАКТАЦИЕЙ
Creators: name: Алиханова, Н.М.
name: Аббосхужаева, Л.С.
name: Акрамова, Г.Г.
name: Тахирова, Ф.А.
name: Шакирова, М.М.
Publisher: name: Zenodo
Year: 2024

description: В данной статье представлены данные об особенностях этиологии, патогенеза клиники, диагностики и лечения остеопороза, связанного с беременностью и лактацией (ОБЛ) у женщин репродуктивного возраста. Знание особенностей клинических проявлений облегчит раннюю диагностику, что имеет решающее значение для своевременного лечения, при наличии метаболических нарушений костей. Так как до настоящего времени не определены наилучший подходы к лечению женщин с ОБЛ, и, следовательно, необходимы дальнейшие исследования этого состояния.
Varying Index Coefficient Models
Creators: name: Shujie Ma
name: Song, Peter X.-K.
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Biotechnology

description: It has been a long history of using interactions in regression analysis to investigate alterations in covariate-effects on response variables. In this article, we aim to address two kinds of new challenges arising from the inclusion of such high-order effects in the regression model for complex data. The first kind concerns a situation where interaction effects of individual covariates are weak but those of combined covariates are strong, and the other kind pertains to the presence of nonlinear interactive effects directed by low-effect covariates. We propose a new class of semiparametric models with varying index coefficients, which enables us to model and assess nonlinear interaction effects between grouped covariates on the response variable. As a result, most of the existing semiparametric regression models are special cases of our proposed models. We develop a numerically stable and computationally fast estimation procedure using both profile least squares method and local fitting. We establish both estimation consistency and asymptotic normality for the proposed estimators of index coefficients as well as the oracle property for the nonparametric function estimator. In addition, a generalized likelihood ratio test is provided to test for the existence of interaction effects or the existence of nonlinear interaction effects. Our models and estimation methods are illustrated by simulation studies, and by an analysis of child growth data to evaluate alterations in growth rates incurred by mother’s exposures to endocrine disrupting compounds during pregnancy. Supplementary materials for this article are available online.
R-Estimation for Asymmetric Independent Component Analysis
Creators: name: Hallin, Marc
name: Chintan Mehta
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Engineering

description: Independent component analysis (ICA) recently has attracted much attention in the statistical literature as an appealing alternative to elliptical models. Whereas k-dimensional elliptical densities depend on one single unspecified radial density, however, k-dimensional independent component distributions involve k unspecified component densities. In practice, for given sample size n and dimension k, this makes the statistical analysis much harder. We focus here on the estimation, from an independent sample, of the mixing/demixing matrix of the model. Traditional methods (FOBI, Kernel-ICA, FastICA) mainly originate from the engineering literature. Their consistency requires moment conditions, they are poorly robust, and do not achieve any type of asymptotic efficiency. When based on robust scatter matrices, the two-scatter methods developed by Oja, Sirkia, and Eriksson in 2006 and Nordhausen, Oja, and Ollila in 2008 enjoy better robustness features, but their optimality properties remain unclear. The “classical semiparametric” approach by Chen and Bickel in 2006, quite on the contrary, achieves semiparametric efficiency, but requires the estimation of the densities of the k unobserved independent components. As a reaction, an efficient (signed-)rank-based approach was proposed by Ilmonen and Paindaveine in 2011 for the case of symmetric component densities. The performance of their estimators is quite good, but they unfortunately fail to be root-n consistent as soon as one of the component densities violates the symmetry assumption. In this article, using ranks rather than signed ranks, we extend their approach to the asymmetric case and propose a one-step R-estimator for ICA mixing matrices. The finite-sample performances of those estimators are investigated and compared to those of existing methods under moderately large sample sizes. Particularly good performances are obtained from a version involving data-driven scores taking into account the skewness and kurtosis of residuals. Finally, we show, by an empirical exercise, that our methods also may provide excellent results in a context such as image analysis, where the basic assumptions of ICA are quite unlikely to hold. Supplementary materials for this article are available online.
Bayesian Generalized Additive Models for Location, Scale, and Shape for Zero-Inflated and Overdispersed Count Data
Creators: name: Kneib, Thomas
name: Lang, Stefan
name: Klein, Nadja
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Plant Biology
subject: FOS: Biological sciences
subject: Mathematics
subject: FOS: Mathematics
subject: Information and Computing Sciences
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Medicine

description: Frequent problems in applied research preventing the application of the classical Poisson log-linear model for analyzing count data include overdispersion, an excess of zeros compared to the Poisson distribution, correlated responses, as well as complex predictor structures comprising nonlinear effects of continuous covariates, interactions or spatial effects. We propose a general class of Bayesian generalized additive models for zero-inflated and overdispersed count data within the framework of generalized additive models for location, scale, and shape where semiparametric predictors can be specified for several parameters of a count data distribution. As standard options for applied work we consider the zero-inflated Poisson, the negative binomial and the zero-inflated negative binomial distribution. The additive predictor specifications rely on basis function approximations for the different types of effects in combination with Gaussian smoothness priors. We develop Bayesian inference based on Markov chain Monte Carlo simulation techniques where suitable proposal densities are constructed based on iteratively weighted least squares approximations to the full conditionals. To ensure practicability of the inference, we consider theoretical properties like the involved question whether the joint posterior is proper. The proposed approach is evaluated in simulation studies and applied to count data arising from patent citations and claim frequencies in car insurances. For the comparison of models with respect to the distribution, we consider quantile residuals as an effective graphical device and scoring rules that allow us to quantify the predictive ability of the models. The deviance information criterion is used to select appropriate predictor specifications once a response distribution has been chosen. Supplementary materials for this article are available online.
Enhancing Undergraduate Students’ Responses to Bereaved Peers: An Innovative Online Intervention
Creators: name: Hill, Erin
name: O'Brien, Karen
name: Herman, Micah
name: Khibovska, Anastasiia
name: Ashai, Shereen
Publisher: name: Digital Repository at the University of Maryland
Year: 2020
Subjects: subject: Psychology
subject: FOS: Psychology
subject: BSOS
subject: Hill
subject: grief
subject: online intervention
subject: bereavement

description: The purpose of this study was to conduct a randomized controlled trial to assess the efficacy of CARES, an online intervention developed to educate undergraduate students about how to communicate with friends who experienced the death of someone close to them. College students (N=231) were randomly assigned to one of three conditions: (1) the CARES intervention, (2) a website containing information about grief and loss, or (3) a control condition. Results indicated that students who participated in the CARES intervention had the greatest knowledge regarding grief and appropriate communication with grieving peers when compared to participants in the website and control conditions. In addition, students receiving the intervention were more confident in their ability to help a grieving peer and had the greatest skill in communicating with a grieving peer. Thus, the CARES intervention has potential for educating undergraduates about effective communication with their grieving peers.