cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Symmetrical liquid crystalline dimers containing azo and azomethine linkages: synthesis, characterisation, mesomorphic study and DFT studies
Creators: name: Rabari, Mahima
name: Bhatt, Manali
name: Prajapati, A. K.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Biochemistry
Chemical Sciences not elsewhere classified
Science Policy
Virology

description: In the current study, one new series of symmetrical liquid crystalline homologous series of dimers with a rigid aromatic core with azo and azomethine group were synthesized using an ether-linking group. Several spectroscopic methods, including FT-IR, 1H-NMR, 13C-NMR and elemental analysis, were used to describe the synthesised dimers. The differential scanning calorimetry (DSC) and polarised optical microscopy (POM) were used to assess their mesomorphic properties. The results showed that the number of methylene spacers significantly affected the thermal properties of the synthesized dimers. To ascertain photophysical behaviour, UV-visible spectroscopy was employed. All the dimers of the present series show excellent enantiotropic nematic mesophase. The relationships between structure and its mesogenic property, the effects of various flexible spacers, the mesophase ranges, and the photo-isomerization of liquid crystalline dimers were all investigated. DFT study was carried out to gain a better understanding of structural features.
A ferroelectric nematic liquid crystal vitrified at room temperature
Creators: name: Adaka, A.
name: Guragain, P.
name: Perera, K.
name: Nepal, P.
name: Almatani, B.
name: Sprunt, S.
name: Gleeson, J.
name: Twieg, R. J.
name: Jákli, A.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Physical Sciences not elsewhere classified
Medicine
Biotechnology
Chemical Sciences not elsewhere classified

description: Most of the current highly polar rod-shaped molecules that form ferroelectric nematic (NF) phase do so only at elevated temperatures and multicomponent mixtures are generally needed to obtain a broad and room temperature range NF phase. In this work, we describe the synthesis, phase characterisation and measurement of various physical properties of a new ferroelectric nematic compound 4-[(4-nitrophenoxy)carbonyl]phenyl 2-isopropoxy-4-methoxybenzoate (RT11165). The molecular structure of RT11165 with a 2-isopropoxy group differs only by a substitution of the 2-methoxy group found in the prototype ferroelectric nematic material 4-[(4-nitrophenoxy)carbonyl]phenyl 2,4-dimethoxybenzoate (RM734). This small structure change produces a rather dramatic change in phase behaviour leading to an NF phase from 63°C down to room temperature. Below about 45°C the rotational viscosity of RT11165 increases critically and the temperature dependence indicates a glass transition at ~19°C. The transparent and polar glassy state of RT11165, which should be also piezoelectric, is a good candidate for energy storage, piezoecatalysis, data storage and other applications.
Participatory Designing a Knowledge Graph for the Sustainable Development Goals. A Value Case Study on the example of SDG 17
Creators: name: Wandl-Vogt, Eveline
name: Brandner, Andreas
name: Brennan, Rob
name: Way, Andy
name: Rocha Souza, Renato
Publisher: name: Zenodo
Year: 2020
Subjects: Knowledge Design; Knowledge CoCreation; Knowledge Partnerships; Knowledge for Development; Knowledge Graph; SDG17; SDG12; Knowledge Management

description: Poster presented at the Citizen Science SDG Confernence in Berlin / online:
 Knowledge for Change: A decade of Citizen Science (2020-2030) in support of the Sustainable Development Goals. The poster introduces in a prototypical participatory development of a Knowledge Graph for the sustainable development Goals, carried out in collaboration with the UN One Planet Network. https://www.cs-sdg-conference.berlin/files/assets/EU%20Citizen%20Science%20SDG%20Tagung/Programme/CS_SDG_programme.pdf
How Low Can You Go? The Photoeccentric Effect for Planets of Various Sizes
Creators: name: Price, Ellen M.
name: Rogers, Leslie A.
name: Johnson, John Asher
name: Dawson, Rebekah I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: It is well-known that the light curve of a transiting planet contains information about the planet's orbital period and size relative to the host star. More recently, it has been demonstrated that a tight constraint on an individual planet's eccentricity can sometimes be derived from the light curve via the "photoeccentric effect," the effect of a planet's eccentricity on the shape and duration of its light curve. This has only been studied for large planets and high signal-to-noise scenarios, raising the question of how well it can be measured for smaller planets or low signal-to-noise cases. We explore the limits of the photoeccentric effect over a wide range of planet parameters. The method hinges upon measuring $g$ directly from the light curve, where $g$ is the ratio of the planet's speed (projected on the plane of the sky) during transit to the speed expected for a circular orbit. We find that when the signal-to-noise in the measurement of $g$ is $< 10$, the ability to measure eccentricity with the photoeccentric effect decreases. We develop a "rule of thumb" that for per-point relative photometric uncertainties $σ= \{ 10^{-3}, 10^{-4}, 10^{-5} \}$, the critical values of planet-star radius ratio are $R_p / R_\star \approx \{ 0.1, 0.05, 0.03 \}$ for Kepler-like 30-minute integration times. We demonstrate how to predict the best-case uncertainty in eccentricity that can be found with the photoeccentric effect for any light curve. This clears the path to study eccentricities of individual planets of various sizes in the Kepler sample and future transit surveys.
Insights into the dynamic symphony: a comprehensive computational exploration of pure and fluorinated 6O.6 liquid crystals with the help of DFT analysis
Creators: name: Chakraborty, Adrish
name: Bhattacharjee, Debanjan
name: Bhattacharjee, Ayon
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Physical Sciences not elsewhere classified
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Information Systems not elsewhere classified

description: This article is based on the Density Functional Theory (DFT) simulations approach to examine the structural and vibrational behaviour of pure 6O.6 and fluorinated 6O.6 liquid crystalline compounds. The molecular interactions of the molecules were investigated by their optimised molecular structure. Identification of significant functional groups and their dynamic behaviours are made with the help of vibrational frequencies obtained through DFT calculations. Vibrational Energy Distribution Analysis (VEDA) software was used to perform the Potential Energy Distribution (PED) function of FT-IR and Raman spectra. Furthermore, changes in vibrational peaks provide insight into structural modifications. This investigation mainly focused on analysing the different reactivity, thermodynamic parameters and non-linear optical (NLO) properties of the compounds. This also helps to open a new path for further investigations into optoelectronic applications and molecular dynamics.
Exploring the electro-optical properties of nematic liquid crystal through incorporation of ZnCuGaS2 core/shell quantum dots
Creators: name: Sutar, Ankita
name: Sarnaik, Prathmesh
name: Doke, Swapnil
name: Haque, M. Abdul
name: Kahane, Shital
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Cell Biology
Biotechnology
Environmental Sciences not elsewhere classified
Chemical Sciences not elsewhere classified

description: The current study focuses on elucidating the interaction mechanisms between ZnCuGaS2 quantum dots (QDs) and nematic liquid crystals (NLCs) (5CB), intending to comprehend how this interaction leads to the alteration of electro-optical properties of the host material. Various concentrations of QDs were incorporated into NLCs and investigated to examine their emission and transmittance characteristics. Remarkably, an enhancement (~68%) in photoluminescence was observed for the concentration of 0.04 wt. %, adding an intriguing aspect to the findings. A notable decrease in the threshold voltage, from 1.5 V (in pure NLC) to 0.5 V, was observed for the optimised concentration (0.04 wt. %) calculated using transmittance-voltage measurement. This sample exhibited a noteworthy improvement in optical transmission, showing an increase by 2.7 times compared to pure NLC. Fundamentally, the introduction of QDs leads to a reduction in light leakage centres and ionic impurities, consequently enhancing radiative recombination. Moreover, the memory effect of the sample was evident in the capacitance-voltage data, revealing that the NLC with QDs significantly increased the capacitance value from 290 pF to 466 pF when compared to the pure NLC. The objective of the present research is to examine the impact of QDs on NLC concerning key parameters such as mentioned above.
The senior citizen population of Cary : Wake County, North Carolina : a community diagnosis including secondary and qualitative data collection
Creators: name: Khan, Amera
name: Golden, Shelley
name: Altman, Heather
name: Hill, Kate
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1998

description: The community diagnosis presented in this document is the result of a two-semester academic requirement of first-year Master’s students enrolled in the Health Behavior and Health Education Department at the School of Public Health at the University of North Carolina at Chapel Hill. Students in this program conduct a community diagnosis in order to learn to assess and comprehend the needs and resources of a particular community. It is a team effort, allowing small groups of students to work together to understand the many factors that directly or indirectly affect the overall health and quality of life of that community and its residents. This community diagnosis focused on identifying the needs and interests of the senior citizen population of Cary, North Carolina. Particular emphasis was placed on the strengths and limitations of the community and the potential for resolution of those concerns that are most important. In general, the process involved gathering information from written documents, personal interviews, and community dialogue. The findings of this process are presented as clearly and completely as possible in the following pages. Included are sections about Cary’s history, geography, political system, and demographics, as well as an overview of indicators of economic, education and health status of residents. In addition, seven major topics identified by community members -- town growth, transportation, housing, health issues, social isolation, a proposed new senior center, and perceptions of seniors -- are discussed in detail. In the final conclusions section, the major findings from the various parts of the community diagnosis are examined in order to assess general community competence and present some implications for the future. The authors of this document endeavored to examine the quality of life of the senior residents of the town of Cary throughout the process described above. During the community diagnosis the team gained an understanding and appreciation of the diversity of experiences and opinions of the seniors of Cary, the variety of resources currently available, and the potential for community members to address key concerns. Throughout the document, great care was taken to ensure objective interpretation of all subject matter, opinions, and concerns as they were presented. Although this process began as part of an academic requirement, it is hoped that the community as a whole benefited from the experience and that this document might be considered a catalyst for continued collective action on the part of Cary senior residents.
Laser-Ranging Long Baseline Differential Atom Interferometers for Space
Creators: name: Chiow, Sheng-wey
name: Williams, Jason
name: Yu, Nan
Publisher: name: arXiv
Year: 2015
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: High sensitivity differential atom interferometers are promising for precision measurements in science frontiers in space, including gravity field mapping for Earth science studies and gravitational wave detection. We propose a new configuration of twin atom interferometers connected by a laser ranging interferometer (LRI-AI) to provide precise information of the displacements between the two AI reference mirrors and a means to phase-lock the two independent interferometer lasers over long distances, thereby further enhancing the feasibility of long baseline differential atom interferometers. We show that a properly implemented LRI-AI can achieve equivalent functionality to the conventional differential atom interferometer measurement system. LRI-AI isolates the laser requirements for atom interferometers and for optical phase readout between distant locations, thus enabling optimized allocation of available laser power within a limited physical size and resource budget. A unique aspect of LRI-AI also enables extended dynamic range of differential signals and the highest possible effective data rate.
description: 4 pages, 2 figures
Real-space quadrature: a convenient, efficient representation for multipole expansions
Creators: name: Rogers, David M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 78M16, 33C55, 78M15, 31A30

description: Multipolar expansions are a foundational tool for describing basis functions in quantum mechanics, many-body polarization, and other distributions on the unit sphere. Progress on these topics is often held back by complicated and competing formulas for calculating and using spherical harmonics. We present a complete representation for supersymmetric 3D tensors that replaces spherical harmonic basis functions by a dramatically simpler set of weights associated to discrete points in 3D space. This representation is shown to be space optimal. It reduces tensor contraction and the spherical harmonic decomposition of Poisson's operator to pairwise summations over the point set. Moreover, multiplication of spherical harmonic basis functions translates to a direct product in this representation.
description: 12 pages, 4 figures, presented at Southeast Regional Meeting of the Amer. Chem. Soc., October 2014
First-order decomposition of thermal light in terms of a statistical mixture of pulses
Creators: name: Chenu, Aurélia
name: Brańczyk, Agata M.
name: Sipe, J. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the connection between thermal light and coherent pulses, constructing mixtures of single pulses that yield the same first-order, equal-space-point correlation function as thermal light. We present mixtures involving (i) pulses with a Gaussian lineshape and narrow bandwidths, and (ii) pulses with a coherence time that matches that of thermal light. We characterize the properties of the mixtures and pulses. Our results introduce an alternative description of thermal light in terms of multi-frequency coherent states, valid for the description of broadband linear light-matter interactions. We anticipate our results will be relevant to time-resolved measurements that aim to probe the dynamics of systems as if they were excited by natural thermal light.
description: 8 pages, 2 figures, 4 pages supplementary material. Comments welcome
A Newly Recognized Very Young Supernova Remnant in M83
Creators: name: Blair, William P.
name: Winkler, P. Frank
name: Long, Knox S.
name: Whitmore, Bradley C.
name: Kim, Hwihyun
name: Soria, Roberto
name: Kuntz, K. D.
name: Plucinsky, Paul P.
name: Dopita, Michael A.
name: Stockdale, Christopher
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: As part of a spectroscopic survey of supernova remnant candidates in M83 using the Gemini-South telescope and GMOS, we have discovered one object whose spectrum shows very broad lines at H$α$, [O~I] 6300,6363, and [O~III] 4959,5007, similar to those from other objects classified as `late time supernovae.' Although six historical supernovae have been observed in M83 since 1923, none were seen at the location of this object. Hubble Space Telescope Wide Field Camera 3 images show a nearly unresolved emission source, while Chandra and ATCA data reveal a bright X-ray source and nonthermal radio source at the position. Objects in other galaxies showing similar spectra are only decades post-supernova, which raises the possibility that the supernova that created this object occurred during the last century but was missed. Using photometry of nearby stars from the HST data, we suggest the precursor was at least 17 $\rm M_{sun}$, and the presence of broad H$α$ in the spectrum makes a type II supernova likely. The supernova must predate the 1983 VLA radio detection of the object. We suggest examination of archival images of M83 to search for evidence of the supernova event that gave rise to this object, and thus provide a precise age.
description: 25 pages, 9 figures, accepted for ApJ
Fuquay-Varina, Wake County : an action-oriented community diagnosis : Latinos in Fuquay-Varina : findings and next steps of action
Creators: name: Steibelt, Erika
name: Osterberg, Lynn
name: Carrillo, Carla
name: Streng, J. Matt
name: Johnson, Gina
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2002

description: Five students from the Department of Health Behavior and Health Education at the School of Public Health at the University of North Carolina at Chapel Hill, conducted a community diagnosis of the Latino community of Fuquay-Varina, under the guidance of a preceptor from Wake County Human Services, during the 2001-2002 academic year. The aim of this document is to describe this process and its results. The students gathered data about the community through examination of secondary data and through field observations, interviews, and focus group discussions with the insiders (Latino community members) and outsiders (service providers and non- Latino community members). The document provides a brief introduction and history of the community, followed by an overview of pertinent secondary data. Primary data is then presented by describing the frequently mentioned issues or themes pertaining to community life from both outsiders' and insiders' perspectives. The main topics discussed are access to public services, transportation, housing, issues pertaining to youth, and language and cultural barriers. A description of the methodology, including secondary data collection, methods of key informant selection, primary data collection, and data analysis, is then presented. This is followed by a report on the community forum, an event organized by both the students and a committee of concerned community members and service providers (called Uniting Communities Toward Change), that provided an opportunity for both presentation of the project findings to the community and dialogue between diverse groups. A summary of planned steps of action based on discussions at the forum is presented. Conclusions and additional recommendations for future community actions bring the document to a close. While the Latino community of Fuquay-Varina faces many challenges, it is clear that numerous strengths lie within its members. As these assets are tapped, and as people from diverse groups continue to show a willingness to work together toward improving community life, a strong multicultural community in Fuquay-Varina will develop. It is the student team's hope that this document will serve as a useful resource to Uniting Communities Toward Change and other individuals and organizations working toward making Fuquay-Varina a better place for everyone to live.
Hydrodynamic Regimes of Spinning Black D3-Branes
Creators: name: Erdmenger, Johanna
name: Rangamani, Mukund
name: Steinfurt, Stephan
name: Zeller, Hansjörg
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the long-wavelength effective description of non-extremal spinning black D3-branes in flat space. Our setup is motivated by recent explorations of low energy dynamics on black brane world-volumes within the blackfold approach and its connections to the fluid/gravity correspondence. The spinning D3-branes with a rigid radial Dirichlet cut-off give rise to an effective field theory. This theory describes a charged plasma which is driven by external forces, given by one vector and two scalar operators. Furthermore, the flavour charge of this plasma is anomalous, allowing us to examine features of anomaly-induced transport in the blackfold context. We calculate the hydrodynamic transport coefficients to first order and show that in the near-horizon limit, they reproduce the conformal charged fluid dynamics of ${\cal N}=4$ Super Yang-Mills theory. More generally the system interpolates smoothly between the blackfold, fluid/gravity, and Rindler fluid dynamics.
description: 35 pages + appendices, 4 figures (pdf)
Promoting health in the African American community (PHAAC), Raleigh, Wake County
Creators: name: Asefa, Semra
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: This report will cover the planning and implementation for PHAAC (Promoting Health in the African American Community) conference of 1997 in Raleigh, Wake County. This is the third annual conference since PHAAC's inception in 1995. PHAAC, spearheaded by the office of Minority Affairs at the School of Nursing, is a partnership between the School of Nursing, State's Office Minority Health at the Department of Environment, Health, and Natural Resources, and The Interdenominational Usher's Association of North Carolina. The Interdenominational Usher's Association of North Carolina is an association of black churches of various denominations unique to North Carolina. The first PHAAC conference was held at Durham in 1995. The second PHAAC conference was in Fayetteville, North Carolina in 1996. With the exception of the first conference, a Health Committee of congregation members that was established by the Ushers Association chooses the health topics for PHAAC conferences. The topics for the first conference were chosen from a focus group meeting with Usher Association members.
Metastability and phase separation in a simple model of a superconductor with extremely short coherence length
Creators: name: Kapcia, Konrad
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present studies of the atomic limit of the extended Hubbard model with pair hopping for arbitrary electron density and arbitrary chemical potential. The Hamiltonian consists of (i) the effective on-site interaction $U$ and (ii) the intersite charge exchange term $I$, determining the hopping of electron pairs between nearest-neighbour sites. In the analysis of the phase diagrams and thermodynamic properties of this model we treat the intersite interactions within the mean-field approximation. In this report we focus on metastable phases and determine their ranges of occurrence. Our investigations in the absence of the external magnetic field show that the system analysed exhibits tricritical behaviour. Two metastable phases (superconducting and nonordered) can exist inside the regions of the phase separated state stability and a first-order transition occurs between these metastable phases.
description: 5 pages, 3 figures; pdf-ReVTeX; submitted to: Journal of Superconductivity and Novel Magnetism
A Practical Approach to Automated Segmentation of Brain Tumours in MRI
Creators: name: Miladinovic, Aleksandar
Publisher: name: figshare
Year: 2020
Subjects: subject: 110320 Radiology and Organ Imaging
subject: FOS: Clinical medicine

description: Expert brain tumor identification on multimodal Magnetic Resonance (MR) images is a very time-consuming process for medical experts. Therefore, throughout the last decade, significant effort has been invested in the development of novel approaches applying computer-aided techniques for brain tumor segmentation. Automated brain tumor segmentation aims to separate and label different tumor tissues, including: (1) active tumor cells, (2) necrotic core, and (3) edema from normal brain tissues of Gray Matter (GM), White Matter (WM), and Cerebrospinal fluid (CSF). Even though experts from the brain tumor research area can accurately characterize and identify brain tissue abnormalities, the automated process of tumor segmentation is not straightforward. Many accurate approaches are only evaluated on a single data type coming from a particular brain tumor type, and thus, being far away from a practical clinical application [1]. The aim of this work is to implement a software framework to apply and evaluate a recent technique of automated brain tumor segmentation in realistic clinical settings. We will use the algorithms on a coherent study data set and evaluate how they perform based on a small annotated data set. The algorithm choice will be based on quantitative evaluations from [2], [3]. Additionally, internal requirements for the selection will be defined (i.e. degree of user supervision, robustness on the various data, etc.). The dataset consists of multi-contrast MR clinical images from [2], [3], as well as, images from the repository of Medical University of Vienna. The robustness of the selected approach will be evaluated using test data from [2], [3]. The performance measure includes segmentation accuracy of each tumor sub-region defined in 1-3, brain tumor type and the severity of the pathological case. The expected outcome of this project is a toolbox for brain tumor segmentation using existing algorithms. The robustness of the state-of-the-art approaches will be evaluated providing a rough estimation of how far selected techniques are from a practical usage in clinical practice.
Coexisting edge states and gapless bulk in topological states of matter
Creators: name: Baum, Yuval
name: Posske, Thore
name: Fulga, Ion Cosma
name: Trauzettel, Björn
name: Stern, Ady
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We consider two dimensional systems in which edge states coexist with a gapless bulk. Such systems may be constructed, for example, by coupling a gapped two dimensional state of matter that carries edge states to a gapless two dimensional system in which the spectrum is composed of a number of Dirac cones. We find that in the absence of disorder the edge states could be protected even when the two systems are coupled, due to momentum and energy conservation. We distinguish between weak and strong edge states by the level of their mixing with the bulk. In the presence of disorder, the edge states may be stabilized when the bulk is localized or destabilized when the bulk is metallic. We analyze the conditions under which these two cases occur. Finally, we propose a concrete physical realization for one of our models on the basis of bilayer Hg(Cd)Te quantum wells.
description: 7 pages, 9 figures
Condom chat : nailing down the facts about chlamydia and gonorrhea
Creators: name: Lee, Jennifer
name: Nakell, Jessica
name: Tipnis, Sujata
name: Khan, Amera
name: Sprunck, Kim M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1998

description: Definition of the Problem. While media attention, public fears and research dollars have shifted from sexually transmitted diseases (STDs) to the HIV epidemic, two STDs, gonorrhea and chlamydia, have continued to insidiously infect men and women in this country. These two STDs have dire consequences for infected women, including pelvic inflammatory disease, infertility and infant mortality/morbidity (Gorowitz, Webster, Nakashima & Greenspan, 1994). In 1996, the Centers for Disease Control (CDC) received 325,883 reports of gonorrhea cases and 490,080 reports of chlamydia cases from 49 states, the District of Columbia, and New York City (Sexually Transmitted Disease Surveillance, 1996). It is important to realize these numbers underestimate the incidence of gonorrhea and chlamydia because of underreporting in certain areas (STD Surveillance, 1995).
Helpers in the hood : a male lay health advisor program : preventing STDS in African American men in Wilson County
Creators: name: Muriera, Alan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1997

description: This report describes in detail the activities accomplished for my independent project in Wilson County. My project consisted of creating a lay health advisor training manual for African American males in the town of Wilson. Within the town of Wilson there is a fourteen contiguous block area that reports the highest incidences of STDs in North Carolina. To compliment the Sexually Transmitted Epidemic Prevention (STEP) Project, whose target population were African American women, my project focused on the African American male residents within the area. African American males between the agest of 18 to 35 were recruited for interviews and focus groups to help form the foundation of the training manual, test the concepts used, and inquire about the feasibility of a lay health advisor approach with this population.
Rapid Environmental Quenching of Satellite Dwarf Galaxies in the Local Group
Creators: name: Wetzel, Andrew R.
name: Tollerud, Erik J.
name: Weisz, Daniel R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the Local Group, nearly all of the dwarf galaxies (M_star < 10^9 M_sun) that are satellites within 300 kpc (the virial radius) of the Milky Way (MW) and Andromeda (M31) have quiescent star formation and little-to-no cold gas. This contrasts strongly with comparatively isolated dwarf galaxies, which are almost all actively star-forming and gas-rich. This near dichotomy implies a rapid transformation of satellite dwarf galaxies after falling into the halos of the MW or M31. We combine the observed quiescent fractions for satellites of the MW and M31 with the infall times of satellites from the Exploring the Local Volume in Simulations (ELVIS) suite of cosmological zoom-in simulations to determine the typical timescales over which environmental processes within the MW/M31 halos remove gas and quench star formation in low-mass satellite galaxies. The quenching timescales for satellites with M_star < 10^8 M_sun are short, < 2 Gyr, and quenching is more rapid at lower M_star. These satellite quenching timescales can be 1 - 2 Gyr longer if one includes the time that satellites were environmentally preprocessed by low-mass groups prior to MW/M31 infall. We compare with quenching timescales for more massive satellites from previous works to synthesize the nature of satellite galaxy quenching across the observable range of M_star = 10^{3-11} M_sun. The satellite quenching timescale increases rapidly with satellite M_star, peaking at ~9.5 Gyr for M_star ~ 10^9 M_sun, and the timescale rapidly decreases at higher M_star to < 5 Gyr at M_star > 5 x 10^9 M_sun. Overall, galaxies with M_star ~ 10^9 M_sun, similar to the Magellanic Clouds, exhibit the longest quenching timescales, regardless of environmental or internal mechanisms.
description: 6 pages, 3 figures. Accepted in ApJ Letters. Matches published version
Study of Resource Allocation Protocols for Mobile Networks
Creators: name: E N, ganesh
Publisher: name: figshare
Year: 2022
Subjects: Computer Engineering

description: This article proposes a system to control the mutual interference distance d between users belonging to two different cells in order to reduce inter-cell interference in cellular wireless networks. Within this concept, we present a constant spacing protocol between co-channel users receiving from different cells that keeps the inter-cell downlink interference below a predefined threshold. This protocol is based on user location awareness (awareness) and coordination (coordination) of neighboring cell resource allocation protocols. This protocol keeps the interference level low regardless of the mobile's location within the cell and can improve the signal-to-interference ratio in the cell edge area on the order of (10–30) dB. Arbitrary distance between users that causes confusion between co-channels
Chromatic control in coextruded layered polymer microlenses
Creators: name: Crescimanno, Michael
name: Oder, Tom N.
name: Andrews, James H.
name: Zhou, Chuanhong
name: Petrus, Joshua B.
name: Merlo, Cory
name: Bagheri, Cameron
name: Hetzel, Connor
name: Tancabel, James
name: Singer, Kenneth D.
name: Baer, Eric
Publisher: name: arXiv
Year: 2015
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We describe the formation, characterization and theoretical understanding of microlenses comprised of alternating polystyrene and polymethylmethacrylate layers produced by multilayer coextrusion. These lenses are fabricated by photolithography, using a grayscale mask followed by plasma etching, so that the refractive index alternation of the bilayer stack appears across the radius of the microlens. The alternating quarter-wave thick layers form a one-dimensional photonic crystal whose dispersion augments the material dispersion, allowing one to sculpt the chromatic dispersion of the lens by adjusting the layered structure. Using Huygen's principle, we model our experimental measurements of the focal length of these lenses across the reflection band of the multilayer polymer film from which the microlens is fashioned. For a 56 micron diameter multilayered lens of focal length 300 microns, we measured a nearly 25 percent variation in the focal length across a shallow, 50 nm-wide reflection band.
�Il romanzo multiplo�. Etude g�n�tique des oeuvres de Gesualdo Bufalino.
Creators: name: CACCIATORE, GIULIA
Publisher: name: Universit� degli Studi di Milano
Year: 2018

description: The thesis is a genetic study of the works of the Sicilian writer Gesualdo Bufalino (1920-1996). Through the analysis of the writing process, this study reconstructs the genesis of all the works completed by Bufalino during his youth and up until his debut in 1981, with the novel Diceria dell'untore. The research carried out in the archives which hold the genetic materials of Bufalino enabled us to date the creative phase of Bufalino in the period 1955-65. In particular, we have identified in an unpublished novel, Il guazzabuglio, dating back to 1977, a kind of canvas or reservoir, from which the writer drew themes or narrative sequences for other works. This novel, still considered unfinished, was not only completed by Bufalino, but was also closely linked to the genesis of the first two novels, Diceria dell'untore (1981) and Argo il cieco (1984), on the one hand, and to Qui pro quo (1991) and Tommaso e il fotografo cieco (1996), Bufalino?s last novel which can be considered its rewriting. The works completed and published from 1981 until his death in 1996, were the result of a creative process begun during his youth and continued throughout his life. The reconstruction of the genesis of the works written before 1981 is accompanied by the reconstruction of the intellectual biography of Bufalino through the investigation of sources and archive documents.
Community Creates Mobility: A participatory approach to invent the future of mobility
Creators: name: Wandl-Vogt, Eveline
name: Eccher, Chiara
name: Gerhardus, Anna
name: Jaddah, Afamia
Publisher: name: Zenodo
Year: 2020
Subjects: Mobility; SDGs; Kowledge Design; Knowledge CoCreation; Participatory Methods; Open Innovation; Ecosystem; Covid19; Mobility Trends; Mobility Manifesto

description: Poster presented at the conference
 Citizen Science SDG Conference: Knowledge for Change. A decade of Citizen Science (2020-2030) in support of the Sustainable Development Goals.
 c.f. https://www.cs-sdg-conference.berlin/files/assets/EU%20Citizen%20Science%20SDG%20Tagung/Programme/CS_SDG_programme.pdf The poster introduces the participatory movement "Community Creates Mobility" and offers insights into Orchestration of it as well as first results of a virtual learning journey during COVID19 Lockdown in Austria, first half of the year 2020.
title: Mobility-aware Software-Defined Service-Centric Networking for Service Provisioning in Urban Environments
Creators: name: Oliveira Rodrigues, Diego
Publisher: name: Universität Bern
Year: 2023
Subjects: subject: 000 Computer science, knowledge & systems
subject: 510 Mathematics

description: Disruptive applications for mobile devices, such as the Internet of Things, Connected and Autonomous Vehicles, Immersive Media, and others, have requirements that the current Cloud Computing paradigm cannot meet. These unmet requirements bring the necessity to deploy geographically distributed computing architectures, such as Fog and Mobile Edge Computing. However, bringing computing close to users has its costs. One example of cost is the complexity introduced by the management of the mobility of the devices at the edge. This mobility may lead to issues, such as interruption of the communication with service instances hosted at the edge or an increase in communication latency during mobility events, e.g., handover. These issues, caused by the lack of mobility-aware service management solutions, result in degradation in service provisioning.
The present thesis proposes a series of protocols and algorithms to handle user and service mobility at the edge of the network. User mobility is characterized when user change access points of wireless networks, while service mobility happens when services have to be provisioned from different hosts. It assembles them in a solution for mobility-aware service orchestration based on Information-Centric Networking (ICN) and runs on top of Software-Defined Networking (SDN). This solution addresses three issues related to handling user mobility at the edge: (i) proactive support for user mobility events, (ii) service instance addressing management, and (iii) distributed application state data management. For (i), we propose a proactive SDN-based handover scheme. For (ii), we propose an ICN addressing strategy to remove the necessity of updating addresses after service mobility events. For (iii), we propose a graph-based framework for state data placement in the network nodes that accounts for user mobility and latency requirements.
The protocols and algorithms proposed in this thesis were compared with different approaches from the literature through simulation. Our results show that the proposed solution can reduce service interruption and latency in the presence of user and service mobility events while maintaining reasonable overhead costs regarding control messages sent in the network by the SDN controller.
Колонизация ризобактериями корней сахарной свёклы
Creators: name: О.А. Фёдорова
name: Н.В. Безлер
Publisher: name: Сахар
Year: 2022
Subjects: Ризобактерии
сахарная свёкла
колонизирующая способность
Agrobacterium tumefaciens 184 и Streptomyces sp. 3.
Rhizobacteria
sugar beet
colonizing ability
Agrobacterium tumefaciens 184 and Streptomyces sp. 3.

description: Методом выращивания сахарной свёклы в полужидком (0,7%-ном) голодном агаре, инокулированном Agrobacterium tumefaciens 184 и Streptomyces sp. 3, была дана первичная оценка их колонизирующей способности. Показано, что за счёт корневых экссудатов сахарной свёклы исследуемые культуры способны приживаться и функционировать в зоне корней растения, что важно для осуществления их фитопротекторной и ростстимулирующей функций.
description: The method of growing sugar beets in semi-liquid (0.7%) empty agar inoculated with Agrobacterium tumefaciens 184 and Streptomyces sp. 3 gave an initial exudates, the studied crops are able to take root and function in the root zone of the plant, which is important for their phytoprotective and growth-stimulating functions.
Galaxy triplets in Sloan Digital Sky Survey Data Release 7 - III. Analysis of Configuration and Dynamics
Creators: name: Duplancic, Fernanda
name: Alonso, Sol
name: Lambas, Diego García
name: O'Mill, Ana Laura
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We analyse the spatial configuration and the dynamical properties of a sample of 92 galaxy triplets obtained from the SDSS-DR7 (SDSS-triplets) restricted to have members with spectroscopic redshifts in the range $0.01\le z \le 0.14 $ and absolute r-band luminosities brighter than $M_r=-20.5$. The configuration analysis was performed through Agekyan & Anosova map (AA-map). We estimated dynamical parameters, namely the radius of the system, the velocity dispersion, a dimensionless crossing-time and the virial mass. We compared our results with those obtained for a sample of triplets from the catalogue "Isolated Triplets of Galaxies" (K-triplets) and a sample of Compact Groups. We have also studied a mock catalogue in order to compare real and projected configurations, and to estimate the three dimensional dynamical parameters of the triple systems. We found that the SDSS-triplets prefer alignment configurations while K-triplets present an uniform distribution in the AA-map. From the dynamical analysis we conclude that the SDSS-triplets, K-triplets and Compact Groups present a similar behaviour comprising compact systems with low crossing-time values, with velocity dispersions and virial masses similar to those of low mass loose groups. Moreover, we found that observed and simulated triplets present similar dynamical parameters. We also performed an analysis of the dark matter content of galaxy triplets finding that member galaxies of mock triplets belong to the same dark matter halo, showing a dynamical co-evolution of the system. These results suggest that the configuration and dynamics of triple systems favour galaxy interactions and mergers.
description: Accepted for publication in MNRAS. 9 pages, 8 figures
Nanoparticles in the clinic: An update post COVID-19 vaccines
Creators: name: Anselmo, A.C.
name: Mitragotri, S.
Publisher: name: John Wiley and Sons Inc
Year: 2021

description: Nanoparticles are used in the clinic to treat cancer, resolve mineral deficiencies, image tissues, and facilitate vaccination. As a modular technology, nanoparticles combine diagnostic agents or therapeutics (e.g., elements, small molecules, biologics), synthetic materials (e.g., polymers), and biological molecules (e.g., antibodies, peptides, lipids). Leveraging these parameters, nanoparticles can be designed and tuned to navigate biological microenvironments, negotiate biological barriers, and deliver therapeutics or diagnostic agents to specific cells and tissues in the body. Recently, with the Emergency Use Authorization of the COVID-19 lipid nanoparticle vaccines, the advantages and potential of nanoparticles as a delivery vehicle have been displayed at the forefront of biotechnology. Here, we provide a 5-year status update on our original “Nanoparticles in the Clinic” review (also a 2-year update on our second “Nanoparticles in the Clinic” review) by discussing recent nanoparticle delivery system approvals, highlighting new clinical trials, and providing an update on the previously highlighted clinical trials.
Продукты диверсификации в свеклосахарной промышленности России
Creators: name: М.И. Егорова
name: Л.Н. Пузанова
Publisher: name: Сахар
Year: 2022
Subjects: свеклосахарная промышленность
диверсификация
меласса
жом
ассортимент
меласса обеднённая
меласса вторичная
жом слабомелассированный.
sugar beet industry
diversification
molasses
beet pulp
assortment
depleted molasses
second molasses
low-molasses beet pulp.

description: Рассмотрены объекты и направления диверсификации в свеклосахарной отрасли мира и России. Показано, что основными объектами диверсификации являются побочные продукты меласса и жом, даны их характеристики, направления использования. Представлена «корзина» продуктов переработки сахарной свёклы, проанализированы нормативные документы на них. Ключевые слова: свеклосахарная промышленность, диверсификация, меласса, жом, ассортимент, меласса обеднённая, меласса вторичная, жом слабомелассированный.
description: The objects and directions of diversification in the sugar beet industry of the world and Russia are considered. It is shown that the main objects of diversification are molasses and pulp by-products, their characteristics and directions of use are given. A «basket» of sugar beet processing products is presented, regulatory documents for them are analyzed. Keywords: sugar beet industry, diversification, molasses, beet pulp, assortment, depleted molasses, second molasses, low-molasses beet pulp
The evolution of commercial drug delivery technologies
Creators: name: Anselmo, A.C.
name: Vargason, A.M.
name: Mitragotri, S.
Publisher: name: Nature Research
Year: 2021

description: Drug delivery technologies have enabled the development of many pharmaceutical products that improve patient health by enhancing the delivery of a therapeutic to its target site, minimizing off-target accumulation and facilitating patient compliance. As therapeutic modalities expanded beyond small molecules to include nucleic acids, peptides, proteins and antibodies, drug delivery technologies were adapted to address the challenges that emerged. In this Review Article, we discuss seminal approaches that led to the development of successful therapeutic products involving small molecules and macromolecules, identify three drug delivery paradigms that form the basis of contemporary drug delivery and discuss how they have aided the initial clinical successes of each class of therapeutic. We also outline how the paradigms will contribute to the delivery of live-cell therapies.