cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Identification of Copy Number Variants Contributing to Hallux Valgus
Creators: name: 周文涛(Wentao Zhou)
Publisher: name: CNGB
Year: 2023
Subjects: Exome
Multiisolate
Medical

description: Hallux valgus is a common form of foot deformity, and genetic factors contribute substantially to the pathogenesis of hallux valgus deformity. We conducted a genetic study on the structural variants underlying familial hallux valgus using whole exome sequencing approach. Twenty individuals from five hallux valgus families and two sporadic cases were included in this study. A total of 372 copy number variations were found and passed quality control filtering. Among them, 43 were only present in cases but not in controls or healthy individuals in the database of genomic variants. The genes covered by these copy number variations were enriched in gene sets related to immune signaling pathway, and cytochrome P450 metabolism. The hereditary CNVs demonstrate a dominant inheritance pattern. Two candidate pathogenic CNVs were further validated by quantitative-PCR. This study suggests that hallux valgus is a degenerative joint disease involving the dysregulation of immune and metabolism signaling pathways.
Some remarks on the Cassinian metric
Creators: name: Hariri, Parisa
name: Klen, Riku
name: Vuorinen, Matti
name: Zhang, Xiaohui
Publisher: name: arXiv
Year: 2015
Subjects: subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 51M10, 30C65

description: Some sharp inequalities between the triangular ratio metric and the Cassinian metric are proved in the unit ball.
description: 15 pages, 2 figures
Additional file 1 of Strategies of pretreatment of feedstocks for optimized bioethanol production: distinct and integrated approaches
Creators: name: Shukla, Akanksha
name: Kumar, Deepak
name: Girdhar, Madhuri
name: Kumar, Anil
name: Goyal, Abhineet
name: Malik, Tabarak
name: Mohan, Anand
Publisher: name: figshare
Year: 2024
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: Computational Biology

description: Additional file 1: Figure S1. Illustrate mechanism of pretreatment techniques towards bioethanol production and its effect on feedstock with main emphasis on the size reduction, cellulose disruption along with hemicellulose and lignin depolarization [14, 18, 22]. Figure S2. Depicts diagrammatic representation showing effect of acid pretreatment on feedstock [55, 56]. Figure S3. Depicts the diagrammatical representation of combined pretreatment using chemical along with steam explosion process [32, 34].
Inhalt
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 56 Nr. 1 (1978)
Tuning the catalytic activity of graphene nanosheets for oxygen reduction reaction via size and thickness reduction
Creators: name: Benson, John
name: Xu, Qian
name: Wang, Peng
name: Shen, Yuting
name: Sun, Litao
name: Wang, Tanyuan
name: Li, Meixian
name: Papakonstantinou, Pagona
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Currently, the fundamental factors that control the oxygen reduction reaction (ORR) activity of graphene itself, in particular the dependence of the ORR activity on the number of exposed edge sites remain elusive, mainly due to limited synthesis routes of achieving small size graphene. In this work, the synthesis of low oxygen content (< 2.5 +/-0.2 at %), few layer graphene nanosheets with lateral dimensions smaller than a few hundred nm was achieved using a combination of ionic liquid assisted grinding of high purity graphite coupled with sequential centrifugation. We show for the first time, that the graphene nanosheets possessing a plethora of edges exhibited considerably higher electron transfer numbers compared to the thicker graphene nanoplatelets. This enhanced ORR activity was accomplished by successfully exploiting the plethora of edges of the nanosized graphene as well as the efficient electron communication between the active edge sites and the electrode substrate. The graphene nanosheets were characterized by an onset potential of -0.13 V vs. Ag/AgCl and a current density of -3.85 mA/cm2 at -1 V, which represent the best ORR performance ever achieved from an undoped carbon based catalyst. This work demonstrates how low oxygen content nanosized graphene synthesized by a simple route can considerably impact the ORR catalytic activity and hence it is of significance in designing and optimizing advanced metal-free ORR electrocatalysts.
description: corresponding author: p.papakonstantinou@ulster.ac.uk, ACS Applied Materials and Interfaces 2014
Continuous functions and parallel algorithms on concrete data structures
Creators: name: S. D.(Stephen D.) Brookes
name: Geva, Shai
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "We report progress in two closely related lines of research: the semantic study of sequentiality and parallelism, and the development of a theory of intensional semantics. We generalize Kahn and Plotkin's concrete data structures to obtain a cartesian closed category of generalized concrete data structures and continuous functions. The generalized framework continues to support a definition of sequential functions. Using this ccc as an extensional framework, we define an intensional framework -- a ccc of generalized concrete data structures and parallel algorithms.This construction is an instance of a more general and more widely applicable category-theoretic approach to intensional semantics, encapsulating a notion of intensional behavior as a computational comonad, and employing the co-Kleisli category as an intensional framework. We discuss the relationship between parallel algorithms and continuous functions, and supply some operational intuition for the parallel algorithms. We show that our parallel algorithms may be seen as a generalization of Berry and Curien's sequential algorithms."
An inefficient dwarf: Chemical abundances and the evolution of the Ursa Minor dwarf spheroidal galaxy
Creators: name: Ural, Ugur
name: Cescutti, Gabriele
name: Koch, Andreas
name: Kleyna, Jan
name: Feltzing, Sofia
name: Wilkinson, Mark I.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present detailed chemical element abundance ratios of 17 elements in three metal poor stars in the Ursa Minor dwarf spheroidal galaxy, which we combine with extant data from the literature to assess the predictions of a novel suite of galaxy chemical evolution models. The spectroscopic data were obtained with the Keck/HIRES instrument and revealed low metallicities of [Fe/H]=-2.12, -2.13 and -2.67 dex. While the most metal poor star in our sample shows an overabundance of [Mn/Fe] and other Fe-peak elements, our overall findings are in agreement with previous studies of this galaxy: elevated values of the [alpha/Fe] ratios that are similar to, or only slightly lower than, the halo values but with SN Ia enrichment at very low metallicity, as well as an enhancement of the ratio of first to second peak neutron capture elements [Y/Ba] with decreasing metallicity. The chemical evolution models which were tailored to reproduce the metallicity distribution function of the dSph, indicate that UMi had an extended star formation which lasted nearly 5 Gyr with low efficiency and are able to explain the [Y/Ba] enhancement at low metallicity for the first time. In particular, we show that the present day lack of gas is probably due to continuous loss of gas from the system, which we model as winds.
description: 10 pages, 7 figures, tables
Letter from Michael Ventris to Emmett L. Bennett, Jr., December 2, 1955
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1955
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Ventris responds to revisions suggested by Bennett on several Knossos tablets and discusses alternatives to Browning's system of classifying fragments of Linear B. He discusses the upcoming publication of corrections and additions to Browning's publication of Linear B tablets and says he will ask Turner if they can publish the entirety of Browning's work alongside their revisions and additions if he takes on the labor of typing it himself.
Contributions to the Theory of the Barnes Function
Creators: name: Adamchik, Victor S.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper presents a family of new integral representations and asymptotic series of the multiple gamma function. The
numerical schemes for high-precision computation of the Barnes
gamma function and Glaisher’s constant are also discussed
Convergence Testing in Term-Level Bounded Model Checking
Creators: name: Bryant, Randal E.
name: Shuvendu K. Lahiri
name: Sanjit A. Seshia
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: We consider the problem of bounded model checking of systems expressed in a decidable fragment of first-order logic. While model checking is not guaranteed to terminate for an arbitrary system, it converges for many practical examples, including pipelined processors. We give a new formal definition of convergence that generalizes previously stated criteria. We also give a sound semi-decision procedure to check this criterion based on a translation to quantified separation logic. Preliminary results on simple pipeline processor models are presented.
The role of histone locus body (HLB) assembly and the cell cycle in histone mRNA biosynthesis
Creators: name: Terzo, Esteban
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The compartmentalization of nuclear processes such as transcription and histone mRNA biosynthesis into discrete territories is essential for orchestrating diverse gene expression programs. Genomes organize structures called nuclear bodies (NBs) that concentrate factors (proteins and RNA) required for gene expression regulation. The levels of NB components fluctuate continuously in response to diverse physiological inputs. Therefore, gaining insight into how NBs assemble and function is essential for understanding their contribution to genome function. We used the Drosophila histone locus body (HLB) to ask how HLB assembly and function contribute to replication-dependent histone gene expression. HLBs form at the histone locus and concentrate factors required for histone mRNA biosynthesis. In addition, CycE/Cdk2 is known to be required for cell cycle-dependent histone mRNA biosynthesis. We previously demonstrated that the Multi Sex Combs (Mxc) protein is required for HLB assembly and efficient histone mRNA biosynthesis and is also phosphorylated by CycE/Cdk2. However, the role that Mxc and its CycE/Cdk2-dependent phosphorylation play in HLB assembly and histone gene expression was not known. We explored the molecular mechanism by which Mxc assembles an HLB and contributes to histone gene expression, by combining biochemical assays, microscopy, and live imaging. We show that Mxc is a multivalent protein that plays an essential role in HLB assembly. We demonstrate that Mxc self-interacts, via the N-terminal LisH and the novel SIF domains, which is crucial for its accumulation at the histone locus. A region between amino acids 721 and 1481 is essential for HLB assembly independent of the LisH and SIF domains. The last 195 amino acids of Mxc are required for the recruitment of FLASH, a histone pre-mRNA processing factor, to the HLB. In addition, preliminary data suggest that Mxc harbors multiple CycE/Cdk2 phosphoepitopes required for HLB assembly. Combining the present work with our previous findings, we propose that Mxc is capable of forming a three-dimensional scaffold, the HLB, by employing multiple domains, and presumably multiple CycE/Cdk2 phosphoepitopes, to accumulate at the histone locus and to concentrate the required histone mRNA biosynthetic components to assemble a mature HLB that promotes and maintains histone gene expression throughout S phase.
Titelei
Creators: name: Redaktion, Die
Publisher: name: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts
Year: 2023

description: Germania : Anzeiger der Römisch-Germanischen Kommission des Deutschen Archäologischen Instituts, Bd. 56 Nr. 1 (1978)
Formulation of a stable biocosmetic nanoemulsion using a Bacillus lipopeptide as the green-emulsifier for skin-care applications
Creators: name: Ganesan, Neela Gayathri
name: Miastkowska, Małgorzata A.
name: Pulit-Prociak, Jolanta
name: Dey, Pinaki
name: Rangarajan, Vivek
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified

description: The current work aims to formulate a stable cosmetic nanoemulsion using nature-derived ingredients such as surfactin (a lipopeptide-type biosurfactant produced by Bacillus sp) as an emulsifier, plant-based essential oil as a bioactive ingredient, and coconut oil as the base oil using high-energy ultrasonication method. To accomplish a stable nanoemulsion formulation, experiments with varying combinations of surfactin concentration, essential oil concentration, ultrasonication time, and amplitude were performed. Statistical analysis of samples, based on the responses such as visual observation, droplet size, and polydispersity index, facilitated proper segregation of best-performing samples from those of poorly performing. Nanoemulsions formulated using optimal conditions of oil-to-surfactant ratio (O/S) of 7.4:1 (%w/w), ultrasonication amplitude of 40%, and ultrasonication time of 4.5 min showed greater stability with average droplets size of 170 ± 12 nm, polydispersity index (PDI) of 0.17 ± 0.01 and zeta potential of −56 ± 0.5 mV. The nanoemulsion remained completely stable with no sign of phase separation during the test period of 200 days. Further, the performance of samples toward different stability tests such as heat treatment, centrifugation test, NaCl treatment was satisfactory. In addition, nanoemulsion exhibited significant antioxidant and antimicrobial activity toward Staphylococcus aureus. Thus, the current study demonstrates the imminent potential of surfactin as a bio-emulsifier in skin-care cosmetics.
Letter from Michael Ventris to Emmett L. Bennett, Jr., November 24, 1955
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1955
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Ventris responds to Bennett's last letter, beginning by offering edits and suggestions on Bennett's corrections and additions on the Knossos tablets. After his suggestions, Ventris discusses seven revisions planned for future publication Scripta Minoa III. He offers a brief postscript regarding Linear A fractions and expresses his agreement with Bennett's suggestions.
Corrective Gradient Refinement for Mobile Robot Localization
Creators: name: Joydeep  Biswas
name: Coltin, Brian
name: Veloso, Manuela M.
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Particle filters for mobile robot localization must balance computational requirements and accuracy of localization. Increasing the number of particles in a particle filter improves accuracy, but also increases the computational requirements. Hence, we investigate a different paradigm to better utilize particles than to increase their numbers. To this end, we introduce the Corrective Gradient Refinement (CGR) algorithm that uses the state space gradients of the observation model to improve accuracy while maintaining low computational requirements. We develop an observation model for mobile robot localization using point cloud sensors (LIDAR and depth cameras) with vector maps. This observation model is then used to analytically compute the state space gradients necessary for CGR. We show experimentally that the resulting complete localization algorithm is more accurate than the Sampling/Importance Resampling Monte Carlo Localization algorithm, while requiring fewer particles.
Convergence testing in term-level bounded model checking
Creators: name: Bryant, Randal
name: Shuvendu K. Lahiri
name: Sanjit A. Seshia
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Abstract: "We consider the problem of bounded model checking of systems expressed in a decidable fragment of first-order logic. While model checking is not guaranteed to terminate for an arbitrary system, it converges for many practical examples, including pipelined processors. We give a new formal definition of convergence that generalizes previously stated criteria. We also give a sound semi-decision procedure to check this criterion based on a translation to quantified separation logic. Preliminary results on simple pipeline processor models are presented."
Biophysical and Biochemical Investigations of Proteins Involved in Genomic Stability
Creators: name: Sacho, Elizabeth J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: The processes by which cells either make or avoid mutations in their DNA are varied and multifaceted. Often proteins involved in the repair of DNA damage are also found inducing mutations in the immune response. Despite the fact that these proteins and processes are found in all eukaryotes, the scientific community is just beginning to elucidate the mechanisms of these diverse pathways and the functions of the proteins involved in them. This dissertation looks at proteins in two seemingly different cellular processes: DNA mismatch repair and the immune response, as modulated by cytidine deaminases. The DNA mismatch repair protein MutLalpha has been long thought to function as a molecular matchmaker; facilitating interactions between proteins in the mismatch repair pathway. Since little was known about this protein, biophysical and biochemical assays were designed and carried out to elucidate what role binding of ATP and DNA may have on MutLalpha. Surprisingly, MutLalpha can exist in four different conformational states, and these conformational states are governed by adenine nucleotide binding (but not hydrolysis). It had been shown previously that MutLalpha binds to DNA in long, cooperative protein tracts. MutLalpha protein tracts do not appear to be effected by increasing salt concentration, but they are affected by the presence of ATP. Additionally, the ATP hydrolysis rate of full-length MutLalpha was measured, and found to be 2-6x larger than values previously reported for isolated N-terminal domains of MutLalpha, suggesting that conformational changes seen upon ATP binding, and the interactions that are likely made as a result of those conformational changes, may enhance the rate of ATP hydrolysis by MutLalpha. Two of the cytidine deaminases (AID and APOBEC3G) have been shown to be involved in the immune response. The third cytidine deaminase (APOBEC2) is only a cytidine deaminase by sequence homology; and as yet has unknown function. Since it is widely believed that all cytidine deaminases are dimeric or tetrameric, a study of the oligomeric states of these proteins (with and without substrate present) was undertaken. Despite all three proteins belonging to the same superfamily, they each appear to exist in a different oligomeric state.
Cooperative and Competitive Interactions Facilitate Stereo Computations in Macaque Primary Visual Cortex
Creators: name: Samonds, Jason M.
name: Potetz, Brian R.
name: Lee, Tai Sing
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: nferring depth from binocular disparities is a difficult problem for the visual system because local features in the left- and right-eye images must be matched correctly to solve this "stereo correspondence problem." Cortical architecture and computational studies suggest that lateral interactions among neurons could help resolve local uncertainty about disparity encoded in individual neurons by incorporating contextual constraints. We found that correlated activity among pairs of neurons in primary visual cortex depended both on disparity-tuning relationships and the stimuli displayed within the receptive fields of the neurons. Nearby pairs of neurons with distinct disparity tuning exhibited a decrease in spike correlation at competing disparities soon after response onset. Distant neuronal pairs of similar disparity tuning exhibited an increase in spike correlation at mutually preferred disparities. The observed correlated activity and response dynamics suggests that local competitive and distant cooperative interactions improve disparity tuning of individual neurons over time. Such interactions could represent a neural substrate for the principal constraints underlying cooperative stereo algorithms.
Letter from Emmett L. Bennett, Jr. to Michael Ventris, April 16, 1949
Creators: name: Bennett, Emmett L
Publisher: name: The University of Texas at Austin
Year: 1949
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Bennett thanks Ventris for his proposal of a ‘transcript index’ and suggests changes, including the inclusion of the symbols rather than just transcriptions. He speaks about frequency of syllables and the likelihood of a large difference between Linear A and Linear B. Future plans, including using Kober’s Knossos transcriptions, drawings, and photographs to study the Knossos materials, are discussed in the conclusion.
Additional file 3 of Categorizing 161 plant (streptophyte) mitochondrial group II introns into 29 families of related paralogues finds only limited links between intron mobility and intron-borne maturases
Creators: name: Zumkeller, Simon
name: Knoop, Volker
Publisher: name: figshare
Year: 2024
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 3.
Co-Training and Expansion: Towards Bridging Theory and Practice
Creators: name: Maria-Florina  Balcan
name: Avrim  Blum
name: Ke, Yang
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Co-training is a method for combining labeled and unlabeled data when
examples can be thought of as containing two distinct sets of features. It
has had a number of practical successes, yet previous theoretical analyses
have needed very strong assumptions on the data that are unlikely to be
satisfied in practice.

In this paper, we propose a much weaker “expansion” assumption on the
underlying data distribution, that we prove is sufficient for iterative cotraining
to succeed given appropriately strong PAC-learning algorithms
on each feature set, and that to some extent is necessary as well. This
expansion assumption in fact motivates the iterative nature of the original
co-training algorithm, unlike stronger assumptions (such as independence
given the label) that allow a simpler one-shot co-training to succeed.
We also heuristically analyze the effect on performance of noise in
the data. Predicted behavior is qualitatively matched in synthetic experiments
on expander graphs.
Persistence of staphyloccocus aureus nasal carriage among industrial hog operation workers and their household contacts in North Carolina
Creators: name: Pierce, Elizabeth
Publisher: name: University of North Carolina at Chapel Hill
Year: 2014

description: Industrial hog operations (IHOs) are a potential source of exposure to antibiotic-resistant Staphylococcus aureus including methicillin-resistant S. aureus (MRSA). However, the duration of nasal colonization among IHO workers is unknown. In order to better understand nasal carriage patterns, nasal swabs from IHO workers and their household contacts were analyzed for up to four months for the presence of S. aureus and MRSA. Isolates also underwent spa typing and antibiotic resistance testing to determine potential livestock association among isolated bacteria. Results indicate that forty percent of the 175 participants were intermittent carriers and twenty-seven were persistent carriers for S. aureus. None of the participants were persistent carriers for MRSA and eight percent were intermittent carriers. This study demonstrates that nasal carriage of S. aureus can persist among IHO workers and their household contacts over a 4 month period that includes time away from work.
Additional file 1 of Categorizing 161 plant (streptophyte) mitochondrial group II introns into 29 families of related paralogues finds only limited links between intron mobility and intron-borne maturases
Creators: name: Zumkeller, Simon
name: Knoop, Volker
Publisher: name: figshare
Year: 2024
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1.
Binary micellar schemes of cationic gemini and conventional surfactants: chain length effect
Creators: name: Suting, Smarling
name: Wagay, Tariq Ahmad
name: Charingia, Anushmita
name: Askari, Hassan
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Developmental Biology

description: Binary micellar schemes have been appropriated to ascertain the effect of chain length on micellization and interfacial properties. Mixed micellar systems of cationic gemini surfactant, bis-N,N-tetradecyldimethyl-m-phenylenediammonium dibromide (14-m-ɸ-14), and conventional cationic surfactants, viz., dodecyltrimethylammonium bromide (C12TAB), tetradecyltrimethylammonium bromide (C14TAB) and hexadecyltrimethylammonium bromide (C16TAB), in aqueous media were investigated by conductometric, tensiometric, fluorimetric and dynamic light scattering (DLS) techniques at 25 °C. The behavior of the binary mixtures under regular solution theory have been explained in light of Clint’s and Rubingh’s models. A non-ideal behavior was indicated. This was further confirmed by interaction parameter (β) values and activity coefficients. The synergism, an attractive interaction, between the surfactant molecules was ascertained. The average aggregation number (Nagg) was evaluated by steady-state fluorescence quenching method. The Nagg increased with increase in mole fraction of CnTAB (n = 12, 14, 16). The size of the aggregates varied with length of conventional surfactants as exhibited by DLS. The zeta potential values of the mixed micelles increase with increase in mole fractions of CnTAB.
Computational Criticisms of the Revelation Principle
Creators: name: Conitzer, Vincent
name: Sandholm, Tuomas W
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description:
The revelation principle is a cornerstone tool in mechanism design. It states that one can restrict attention, without loss in the designer’s objective, to mechanisms in which A) the agents report their types completely in a single step up front, and B) the agents are motivated to be truthful. We show that reasonable constraints on computation and communication can invalidate the revelation principle. Regarding A, we show that by moving to multi-step mechanisms, one can reduce exponential communication and computation to
linear—thereby answering a recognized important open question in mechanism design. Regarding B, we criticize the focus on truthful mechanisms—a dogma that has, to our knowledge, never been criticized before. First, we study settings where the optimal truthful mechanism is N P -complete to execute for the center. In that setting we show that by moving to insincere mechanisms, one can shift the burden of having to solve the N P -complete problem from
the center to one of the agents. Second, we study a new oracle model that captures the setting where utility values can be hard to compute even when all the pertinent information is available—a situation that occurs in many practical applications. In this model we show that by moving to insincere mechanisms, one can shift the burden of having to ask the oracle an exponential number of costly queries from the center to one of the agents. In both cases the insincere mechanism is equally good as the optimal truthful mechanism in the presence of unlimited computation. More interestingly, whereas being unable to carry out either difﬁcult task would have hurt the center in achieving his objective in the truthful setting, if the agent is unable to carry out either difﬁcult task, the value of the center’s objective strictly improves.
Taguchi’s experimental design for the optimization of the defluoridation process using a novel biosorbent developed from the clamshell waste
Creators: name: Mukkanti, Veera Brahmam
name: Tembhurkar, A. R.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Physical Sciences not elsewhere classified
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Computational Biology

description: Developing new adsorbents from waste containing chitosan materials for defluoridation is gaining vast interest. In the current research, a new adsorbent is developed from Clamshell waste and experimental investigation is done using Taguchi’s statistical design approach with L16 orthogonal array for process variables optimization to obtain the maximum fluoride reduction. Maximum defluoridation efficiency of 87.49% and 26.31 mg/g of sorption capacity was achieved at optimum variable values of pH 7, adsorbate initial concentration 10 mg/L, mixing period 90 min, Clamshell dose 10 g/L, and a temperature 323 K. The percentage contribution of each process variable applying ANOVA is pH 34.24% > adsorbate initial concentration 21.17% > mixing period 18.14% > Clamshell dose 15.33% > temperature 11.12%. The fluoride removal with Clamshell adsorbent followed the Freundlich isotherm and fitted well with the pseudo-second-order kinetic model. Thermodynamic parameters (ΔH = 15.075 kJ/mol, ΔS = 0.132 kJ/mol. K) reveal the sorption mechanism is spontaneous and endothermic. SEM and EDAX are used to study surface morphology and FTIR to know the functional groups on the adsorbent that participate in fluoride binding. The reusability study indicates that clamshell absorbent can be reused up to 3 regeneration cycles. The practical feasibility of using the Clamshell sorbent for fluoride removal from field water samples was found to be quite effective.
Computations of Delaunay and Higher Order Triangulations, with Applications to Splines
Creators: name: Liu, Yuanxin
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Digital data that consist of discrete points are frequently captured and processed by scientific and engineering applications. Due to the rapid advance of new data gathering technologies, data set sizes are increasing, and the data distributions are becoming more irregular. These trends call for new computational tools that are both efficient enough to handle large data sets and flexible enough to accommodate irregularity. A mathematical foundation that is well-suited for developing such tools is triangulation, which can be defined for discrete point sets with little assumption about their distribution. The potential benefits from using triangulation are not fully exploited. The challenges fundamentally stem from the complexity of the triangulation structure, which generally takes more space to represent than the input points. This complexity makes developing a triangulation program a delicate task, particularly when it is important that the program runs fast and robustly over large data. This thesis addresses these challenges in two parts. The first part concentrates on techniques designed for efficiently and robustly computing Delaunay triangulations of three kinds of practical data: the terrain data from LIDAR sensors commonly found in GIS, the atom coordinate data used for biological applications, and the time varying volume data generated from from scientific simulations. The second part addresses the problem of defining spline spaces over triangulations in two dimensions. It does so by generalizing Delaunay configurations, defined as follows. For a given point set P in two dimensions, a Delaunay configuration is a pair of subsets (T, I) from P, where T, called the boundary set, is a triplet and I, called the interior set, is the set of points that fall in the circumcircle through T. The size of the interior set is the degree of the configuration. As recently discovered by Neamtu (2004), for a chosen point set, the set of all degree k Delaunay configurations can be associated with a set of degree k plus 1 splines that form the basis of a spline space. In particular, for the trivial case of k equals 0, the spline space coincides with the PL interpolation functions over the Delaunay triangulation. Neamtu’s definition of the spline space relies only on a few structural properties of the Delaunay configurations. This raises the question whether there exist other sets of configurations with identical structural properties. If there are, then these sets of configurations—let us call them generalized configurations from hereon—can be substituted for Delaunay configurations in Neamtu’s definition of spline space thereby yielding a family of splines over the same point set.
NRDE-1 is required for germline immortality.
Creators: name: Mitchell, Jacinth
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: NRDE-1 is required germline immortality and is a critical component of the transcriptional silencing pathway known as nuclear RNAi. Loss of the nrde-1 gene activity results in progressive accumulation of transgenerational stress which compromises the germline tissue and results in germ cell loss, ending ultimately in sterility. Using nrde-1, we paint a sketch of a germline stress and identify DAF-2, a component of the insulin signaling pathway, as well as piRNAs as significant contributors to this stress. Additionally, we explore the accumulation of stress by defining the developmental stage at which the sterility occurs. Due to its role in silencing, we conducted RNAseq on early vs sterile generation nrde-1 mutant animals to investigate the cause of its Germline Mortality and outline results in the expression of selfish genetic elements such as retrotransposons. Although these elements are expressed in sterile generation nrde-1 they were similarly upregulated in another nrde mutant that does not become sterile. Additionally, we have uncovered a list of 19 genes whose transcription is >2 fold upregulated in late generation nrde-1mutants that have accrued damage. Of these genes 42% correspond to the process of spermatogenesis, in agreement with other Mrt studies involving epigenetic transgenerational sterility. We explain this by showing that sperm are not necessary for sterility and that developmental delay occurs and may explain spermatogenesis gene misregulation.
Letter from Michael Ventris to Emmett L. Bennett, Jr., July 9, 1952
Creators: name: Ventris, Michael
Publisher: name: The University of Texas at Austin
Year: 1952
Subjects: Program in Aegean Scripts and Prehistory (PASP)
Michael Ventris Papers
Michael Ventris Papers--Correspondence
Michael Ventris Papers--Correspondence--Emmett L. Bennett
Linear B

description: Ventris mentions that his previous proposal is receiving criticism and that he feels that criticism is warranted; however, he is excited to send Bennett an experimental wordlist with syllabary. He expresses that he sent the same list to Blegen and is excited to see it applied to the Pylos tablets. Additionally, he references the 'signary' controversy and apologizes for creating tension by sharing his opinion.
Equilibrium and kinetics of sorption and resorption of acid and basic dyes using the pulp of carob pods
Creators: name: Seghier, Abdelkarim
name: Boucherdoud, Ahmed
name: Seghier, Soraya
name: Benderdouche, Noureddine
name: Hadjel, Mohammed
name: Bestani, Benaouda
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Being an abundant product in Algeria, pulp of carob pods (PCP) was used in this study as a biosorbent for Methylene blue (MB) and Congo red (CR) removal from aqueous media in batch mode in two successive steps. Once the first dye is adsorbed, the biosorbent is used as is to adsorb the second dye in order to study the interactions between them. Characterization of PCP by FTIR spectroscopy, Scanning Electron Microscopy (SEM), EDX, and point of zero charge showed that the principal functional groups present at the surface are oxygenated with a pHpzc value of the 7.2. Contact time of 60 min was amply sufficient to reach equilibrium for both dyes onto PCP and recuperated biosorbents. pH effect on the biosorption onto PCP shows a behavioral divergence between both dyes. Maximum biosorption uptake of CR was observed at pH value of 6.38 while pH variation has no remarkable influence on MB biosorption and the initial pH solution of 5.75 was taken for subsequent biosorption experiments. The adsorption isotherms obtained are in good agreement with the models of Langmuir and Freundlich and the kinetics are well described by the pseudo-second-order model.
Constant Factor Lasserre Integrality Gaps for Graph Partitioning Problems
Creators: name: Venkatesan  Guruswami
name: Sinop, Ali Kemal
name: Zhou, Yuan
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Partitioning the vertices of a graph into two roughly equal parts while minimizing the number of edges crossing the cut is a fundamental problem (called Balanced Separator) that arises in many settings. For this problem, and variants such as the Uniform Sparsest Cut problem where the goal is to minimize the fraction of pairs on opposite sides of the cut that are connected by an edge, there are large gaps between the known approximation algorithms and non-approximability results. While no constant factor approximation algorithms are known, even APX-hardness is not known either.

In this work we prove that for balanced separator and uniform sparsest cut, semidefinite programs from the Lasserre hierarchy (which are the most powerful relaxations studied in the literature) have an integrality gap bounded away from 1, even for Ω(n) levels of the hierarchy. This complements recent algorithmic results in Guruswami and Sinop (2011) which used the Lasserre hierarchy to give an approximation scheme for these problems (with runtime depending on the spectrum of the graph). Along the way, we make an observation that simplifies the task of lifting "polynomial constraints" (such as the global balance constraint in balanced separator) to higher levels of the Lasserre hierarchy.
Icosahedral invariants and Shimura curves
Creators: name: Nagano, Atsuhira
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Shimura curves are moduli spaces of abelian surfaces with quaternion multiplication. Models of Shimura curves are very important in number theory. Klein's icosahedral invariants $\mathfrak{A},\mathfrak{B}$ and $\mathfrak{C}$ give the Hilbert modular forms for $\sqrt{5}$ via the period mapping for a family of $K3$ surfaces. Using the period mappings for several families of $K3$ surfaces, we obtain explicit models of Shimura curves with small discriminant in the weighted projective space ${\rm Proj} (\mathbb{C}[\mathfrak{A},\mathfrak{B},\mathfrak{C}])$.
description: 24 pages, 5 figures. This paper is corrected and shortened on 4 January 2016. Minor corrections on 7 August 2016
Corecursion and Non-Divergence in Session Types
Creators: name: Toninho, Bernardo
name: Caires, Luis
name: Pfenning, Frank
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: Session types are widely accepted as an expressive discipline for structuring communications in concurrent and distributed systems. In order to express infinitely unbounded sessions, session typed languages often include general recursion which may introduce undesirable divergence, e.g., infinite unobservable reduction sequences. In this paper we address, by means of typing, the challenge of ensuring non-divergence in a session-typed π-calculus with general (co)recursion, while still allowing interesting infinite behaviors to be definable. Our approach builds on a Curry-Howard correspondence between our type system and linear logic extended with co-inductive types, for which our non-divergence property implies consistency. We prove type safety for our framework, implying protocol compliance and global progress of well-typed processes. We also establish, using a logical relation argument, that well-typed processes are compositionally non-divergent, that is, that no well-typed composition of processes, including those dynamically assembled via name passing, can result in divergent behavior.
Hopfield Neural Network deconvolution for weak lensing measurement
Creators: name: Nurbaeva, Guldariya
name: Tewes, Malte
name: Courbin, Frederic
name: Meylan, Georges
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Weak gravitational lensing has the potential to place tight constraints on the equation of the state of dark energy. However, this will only be possible if shear measurement methods can reach the required level of accuracy. We present a new method to measure the ellipticity of galaxies used in weak lensing surveys. The method makes use of direct deconvolution of the data by the total Point Spread Function (PSF). We adopt a linear algebra formalism that represents the PSF as a Toeplitz matrix. This allows us to solve the convolution equation by applying the Hopfield Neural Network iterative scheme. The ellipticity of galaxies in the deconvolved images are then measured using second order moments of the autocorrelation function of the images. To our knowledge, it is the first time full image deconvolution is used to measure weak lensing shear. We apply our method to the simulated weak lensing data proposed in the GREAT10 challenge and obtain a quality factor of Q=87. This result is obtained after applying image denoising to the data, prior to the deconvolution. The additive and multiplicative biases on the shear power spectrum are then +0.000009 and +0.0357, respectively.
description: 10 pages, 11 figures and 2 tables, accepted for publication in A&A
Data Mining on an OLTP System (Nearly) for Free
Creators: name: Riedel, Erik
name: Faloutsos, Christos
name: Ganger, Gregory R
name: Nagle, David
Publisher: name: Figshare
Year: 2018
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: This paper proposes a scheme for scheduling disk requests that takes advantage of the ability of
high-level functions to operate directly at individual disk drives. We show that such a scheme makes
it possible to support a Data Mining workload on an OLTP system almost for free: there is only a
small impact on the throughput and response time of the existing workload. Specifically, we show
that an OLTP system has the disk resources to provide a consistent one third of its sequential bandwidth
to a background Data Mining task with close to zero impact on OLTP throughput and
response time at high transaction loads. At low transaction loads, we show much lower impact than
observed in previous work. This means that a production OLTP system can be used for Data Mining
tasks without the expense of a second dedicated system. Our scheme takes advantage of close
interaction with the on-disk scheduler by reading blocks for the Data Mining workload as the disk
head “passes over” them while satisfying demand blocks from the OLTP request stream. We show
that this scheme provides a consistent level of throughput for the background workload even at very
high foreground loads. Such a scheme is of most benefit in combination with an Active Disk environment
that allows the background Data Mining application to also take advantage of the processing
power and memory available directly on the disk drives.