cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Imaging of more than 730 K-band celestial reference frame sources at up to 87 epochs
Creators: name: de Witt, Aletha
name: Nickola, Marisa
name: Jacobs, Christopher
name: Bietenholz, Michael
name: Gordon, David
Publisher: name: Zenodo
Year: 2023

description: We present an overview of high-resolution images of more than 730 AGN sources from the K-band (24 GHz) celestial reference frame (CRF), which is based on observations made with the VLBA (supported through the USNO’s 50% timeshare allocation) from 24-hour sessions observed between 2015 and February 2023. Many of these sources are imaged for the first time at frequencies above X-band (8 GHz) with sub-mas resolution. The K-band images provide information about the source properties and for sources observed over multiple epochs they provide insights into the temporal behaviour of the sources. The use of K-band was motivated by the opportunity to access more compact intrinsic source morphology at that higher frequency as well as to leverage the factor of three improvement in interferometer resolution relative to the historically standard S/X-band (2.3/8.4 GHz) used for much reference frame and calibrator work. As most of the sources imaged here are in the K-band component of the 3rd International Celestial Reference Frame (ICRF-3), these images serve to characterize the objects used in that IAU standard. Lastly, we also compare images and astrometry from S (2.3 GHz), X (8.4 GHz), K (24 GHz) and Q-band (43 GHz) in order to study the astrophysical differences and determine the optimal frequency band for celestial reference frame observations.
Ha Velocity Fields and Galaxy Interaction in the Quartet of Galaxies NGC 7769, 7770, 7771 and 7771A
Creators: name: Yeghiazaryan, A. A.
name: Nazaryan, T. A.
name: Hakobyan, A. A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The quartet of galaxies NGC 7769, 7770, 7771 and 7771A is a system of interacting galaxies. Close interaction between galaxies caused characteristic morphological features: tidal arms and bars, as well as an induced star formation. In this study, we performed the Fabry-Perot scanning interferometry of the system in Ha line and studied the velocity fields of the galaxies. We found that the rotation curve of NGC 7769 is weakly distorted. The rotation curve of NGC 7771 is strongly distorted with the tidal arms caused by direct flyby of NGC 7769 and flyby of a smaller neighbor NGC 7770. The rotation curve of NGC 7770 is significantly skewed because of the interaction with the much massive NGC 7771. The rotation curves and morphological disturbances suggest that the NGC 7769 and NGC 7771 have passed the first pericenter stage, however, probably the second encounter has not happened yet. Profiles of surface brightness of NGC 7769 have a characteristic break, and profiles of color indices have a minimum at a radius of intensive star formation induced by the interaction with NGC 7771.
description: 10 pages, 5 figures, 1 table
Exercise Regulation of Marrow Adipose Tissue
Creators: name: Pagnotti, Gabriel M.
name: Styner, Maya
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Despite association with low bone density and skeletal fractures, marrow adipose tissue (MAT) remains poorly understood. The marrow adipocyte originates from the mesenchymal stem cell (MSC) pool that also gives rise to osteoblasts, chondrocytes, and myocytes, among other cell types. To date, the presence of MAT has been attributed to preferential biasing of MSC into the adipocyte rather than osteoblast lineage, thus negatively impacting bone formation. Here, we focus on understanding the physiology of MAT in the setting of exercise, dietary interventions, and pharmacologic agents that alter fat metabolism. The beneficial effect of exercise on musculoskeletal strength is known: exercise induces bone formation, encourages growth of skeletally supportive tissues, inhibits bone resorption, and alters skeletal architecture through direct and indirect effects on a multiplicity of cells involved in skeletal adaptation. MAT is less well studied due to the lack of reproducible quantification techniques. In recent work, osmium-based 3D quantification shows a robust response of MAT to both dietary and exercise intervention in that MAT is elevated in response to high-fat diet and can be suppressed following daily exercise. Exercise-induced bone formation correlates with suppression of MAT, such that exercise effects might be due to either calorie expenditure from this depot or from mechanical biasing of MSC lineage away from fat and toward bone, or a combination thereof. Following treatment with the anti-diabetes drug rosiglitazone – a PPARγ-agonist known to increase MAT and fracture risk – mice demonstrate a fivefold higher femur MAT volume compared to the controls. In addition to preventing MAT accumulation in control mice, exercise intervention significantly lowers MAT accumulation in rosiglitazone-treated mice. Importantly, exercise induction of trabecular bone volume is unhindered by rosiglitazone. Thus, despite rosiglitazone augmentation of MAT, exercise significantly suppresses MAT volume and induces bone formation. That exercise can both suppress MAT volume and increase bone quantity, notwithstanding the skeletal harm induced by rosiglitazone, underscores exercise as a powerful regulator of bone remodeling, encouraging marrow stem cells toward the osteogenic lineage to fulfill an adaptive need for bone formation. Thus, exercise represents an effective strategy to mitigate the deleterious effects of overeating and iatrogenic etiologies on bone and fat.
Searching for Dark Matter Constituents with Many Solar Masses
Creators: name: Frampton, Paul H.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Searches for dark matter (DM) constituents are presently mainly focused on axions and WIMPs despite the fact that far higher mass constituents are viable. We discuss and dispute whether axions exist and those arguments for WIMPs which arise from electroweak supersymmetry. We focus on the highest possible masses and argue that, since if they constitute all DM they cannot be baryonic, they must uniquely be primordial black holes. Observational constraints require them to be of intermediate masses mostly between a hundred and a hundred thousand solar masses. Known search strategies include wide binaries, CMB distortion and, most promisingly, extended microlensing experiments.
description: 17 pages LaTeX. Prepared for publication. Critique of axions and WIMPs softened. References added
Admixture Mapping of African–American Women in the AMBER Consortium Identifies New Loci for Breast Cancer and Estrogen-Receptor Subtypes
Creators: name: Palmer, Julie R.
name: Bernstein, Leslie
name: Lunetta, Kathryn L.
name: Hu, Jennifer J.
name: Bandera, Elisa V.
name: Deming, Sandra L.
name: Yao, Song
name: Haiman, Christopher A.
name: Olshan, Andrew F.
name: Sucheston-Campbell, Lara
name: John, Esther M.
name: Bensen, Jeannette T.
name: Ambrosone, Christine B.
name: Ruiz-Narváez, Edward A.
name: Haddad, Stephen
name: Ziegler, Regina G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Recent genetic admixture coupled with striking differences in incidence of estrogen receptor (ER) breast cancer subtypes, as well as severity, between women of African and European ancestry, provides an excellent rationale for performing admixture mapping in African American women with breast cancer risk. We performed the largest breast cancer admixture mapping study with in African American women to identify novel genomic regions associated with the disease. We conducted a genome-wide admixture scan using 2,624 autosomal ancestry informative markers (AIMs) in 3,629 breast cancer cases (including 1,968 ER-positive, 1093 ER-negative, and 601 triple-negative) and 4,658 controls from the African American Breast Cancer Epidemiology and Risk (AMBER) Consortium, a collaborative study of four large geographically different epidemiological studies of breast cancer in African American women. We used an independent case-control study to test for SNP association in regions with genome-wide significant admixture signals. We found two novel genome-wide significant regions of excess African ancestry, 4p16.1 and 17q25.1, associated with ER-positive breast cancer. Two regions known to harbor breast cancer variants, 10q26 and 11q13, were also identified with excess of African ancestry. Fine-mapping of the identified genome-wide significant regions suggests the presence of significant genetic associations with ER-positive breast cancer in 4p16.1 and 11q13. In summary, we identified three novel genomic regions associated with breast cancer risk by ER status, suggesting that additional previously unidentified variants may contribute to the racial differences in breast cancer risk in the African American population.
Consultation-Liaison Psychiatry in Ramathibodi Hospital
Creators: name: Pattarabhorn Wisajun
Publisher: name: Faculty of Medicine Ramathibodi Hospital, Mahidol University
Year: 2018
Subjects: Consultation-liaison psychiatry
Inpatient
Delirium
Depressive disorder

description: Ramathibodi Medical Journal, 41, 4, 048-055
Brunia sphaerocephala A. V. Hall 2019, comb. nov.
Creators: name: Claßen-Bockhoff, Regine
name: Oliver, Edward G. H.
name: Hall, Anthony V.
name: Quint, Marcus
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Bruniales
Bruniaceae
Brunia
Brunia sphaerocephala

description: Brunia sphaerocephala (Sond.) A.V. Hall, comb. nov. ≡ Berardia sphaerocephala Sond. in Harvey & Sonder, Fl. Cap. 2: 319. 1862 ≡ Nebelia sphaerocephala (Sond.) Kuntze, Revis. Gen. Pl. 1: 233. 1891; PillansinJ. S. African Bot. 13: 166. 1947 – Lectotype (designated here by Oliver): Drège s.n. (S-G-8314 [ex herb. Sond.], lecto; MEL-27713 [ex herb. Sond.], isolecto).
description: Published as part of Claßen-Bockhoff, Regine, Oliver, Edward G. H., Hall, Anthony V. & Quint, Marcus, 2019, A new classification of the South African endemic family Bruniaceae based on molecular and morphological data, pp. 1138-1155 in TAXON 60 (4) on page 1149, DOI: 10.1002/tax.604016, http://zenodo.org/record/7590433
The Kohnen plus space for Hilbert-Siegel modular forms
Creators: name: Su, Ren-He
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: The Kohnen plus space, roughly speaking, is a space consisting of modular forms of half integral weight with some property in Fourier coefficients. For example, the $n$-th coefficient of a normal modular form of weight $k+1/2$ in the plus space is $0$ unless $(-1)^kn$ is congruent to some square modulo $4$. The concept of plus space was initially introduced by Kohnen in 1980. Eichler and Zagier showed that the plus space is isomorphic to the space of Jacobi forms in the one variable case. Later, Ibukiyama generalized these results to the cases for Siegel modular forms in 1992. Also, Hiraga and Ikeda generalized these results to the cases for Hilbert modular forms in 2013. In this paper, we continue to consider the case of Hilbert-Siegel modular forms. An analogue of the previous results will be given.
description: 30 pages
Genetic Susceptibility to Vitiligo: GWAS Approaches for Identifying Vitiligo Susceptibility Genes and Loci
Creators: name: Sun, Liangdan
name: Shen, Changbing
name: Yin, Xianyong
name: Sheng, Yujun
name: Dou, Jinfa
name: Cui, Yong
name: Zhou, Fusheng
name: Zhu, Caihong
name: Zhang, Xuejun
name: Zheng, Xiaodong
name: Ko, Randy
name: Tang, Xianfa
name: Gao, Jing
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Vitiligo is an autoimmune disease with a strong genetic component, characterized by areas of depigmented skin resulting from loss of epidermal melanocytes. Genetic factors are known to play key roles in vitiligo through discoveries in association studies and family studies. Previously, vitiligo susceptibility genes were mainly revealed through linkage analysis and candidate gene studies. Recently, our understanding of the genetic basis of vitiligo has been rapidly advancing through genome-wide association study (GWAS). More than 40 robust susceptible loci have been identified and confirmed to be associated with vitiligo by using GWAS. Most of these associated genes participate in important pathways involved in the pathogenesis of vitiligo. Many susceptible loci with unknown functions in the pathogenesis of vitiligo have also been identified, indicating that additional molecular mechanisms may contribute to the risk of developing vitiligo. In this review, we summarize the key loci that are of genome-wide significance, which have been shown to influence vitiligo risk. These genetic loci may help build the foundation for genetic diagnosis and personalize treatment for patients with vitiligo in the future. However, substantial additional studies, including gene-targeted and functional studies, are required to confirm the causality of the genetic variants and their biological relevance in the development of vitiligo.
No need for special VLBI hardware?
Creators: name: Tzioumis, Anastasios
Publisher: name: Zenodo
Year: 2023

description: Apart from the VLBA, all other VLBI networks around the world utilise radio telescopes (single dishes or arrays) built and operated as single instruments. Traditionally, VLBI observations have been facilitated by specialised VLBI equipment attached independently to the receiver front-end output (RF or IF). Such equipment has been expensive, often difficult to operate and maintain, and led to VLBI being viewed as a “pioneering adventure” led by “black belt” trained VLBIers and inaccessible to the rest of the astronomy community. It can be argued that this has constrained the adoption and use of VLBI by the wider community.
 Technology has changed drastically since the early days of VLBI and has already changed the way we do VLBI correlation i.e. no more hardware correlators and the new software correlators can run on any of the modern supercomputer clusters. The digital technology on modern radio telescopes (new antennas or just new receiver systems) has now progressed to the state that digital data at baseband can be directly delivered from the receiver to a GPU cluster, with nanosecond timing accuracy. Often called a “universal back-end” system. Such data are VLBI-ready or can be re-packaged by relatively simple software. So, modern VLBI operations could be streamlined to be just a simple change in mode on a universal back-end. The VLBI observing will be much easier to setup and operate, and should attract a lot more astronomers to use the VLBI technique for their science.
 I would report on recent progress on implementing such systems and open discussion on how VLBI can transition to this more universal operation mode.
Brunia tulbaghensis Class. - Bockh. & E. G. H. Oliv.
Creators: name: Claßen-Bockhoff, Regine
name: Oliver, Edward G. H.
name: Hall, Anthony V.
name: Quint, Marcus
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Bruniales
Bruniaceae
Brunia
Brunia tulbaghensis

description: Brunia tulbaghensis (Schltr. ex Dümmer) Class.-Bockh. & E.G.H. Oliv., comb. nov. ≡ Nebelia tulbaghensis Schltr. ex Dümmer in J. Bot. 50, suppl. 2: 15. 1912; Pillans in J. S. African Bot. 13: 165. 1947 – Type: Tulbagh Div., Nieuwe Kloof, 3000 ft, Schlechter 7500 (K-75848!, holo; BM-753015!, S-08-7339, iso). Placement of this species in Brunia subg. Brunia is based on morphological data as anther morphology, 5- to 10-colporate pollen grains, exserted stamens, and presence of terminal inflorescence; it was not included in the DNA analysis.
description: Published as part of Claßen-Bockhoff, Regine, Oliver, Edward G. H., Hall, Anthony V. & Quint, Marcus, 2019, A new classification of the South African endemic family Bruniaceae based on molecular and morphological data, pp. 1138-1155 in TAXON 60 (4) on pages 1149-1150, DOI: 10.1002/tax.604016, http://zenodo.org/record/7590433
การเปลี่ยนแปลงกฎเกณฑ์เกี่ยวกับกรรมการอิสระและการจัดการกำไรของบริษัทจดทะเบียนในประเทศไทย
Creators: name: ธิคุณ  สุภาสัย
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2018
Subjects: กรรมการอิสระ
การจัดการกำไร
ต้นทุนการได้มาซึ่งข้อมูลข่าวสาร
Independent Director
Earnings Management
Information Acquisition Cost

description: จุฬาลงกรณ์ธุรกิจปริทัศน์, 40, 158, 1-22
Incorporating Concomitant Medications into Genome-Wide Analyses for the Study of Complex Disease and Drug Response
Creators: name: Wagner, Michael J.
name: Motsinger-Reif, Alison A.
name: Buse, John B.
name: Rotroff, Daniel M.
name: Marvel, Skylar W.
name: Graham, Hillary T.
name: Havener, Tammy M.
name: Wilson, Alyson G.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Given the high costs of conducting a drug-response trial, researchers are now aiming to use retrospective analyses to conduct genome-wide association studies (GWAS) to identify underlying genetic contributions to drug-response variation. To prevent confounding results from a GWAS to investigate drug response, it is necessary to account for concomitant medications, defined as any medication taken concurrently with the primary medication being investigated. We use data from the Action to Control Cardiovascular Disease (ACCORD) trial in order to implement a novel scoring procedure for incorporating concomitant medication information into a linear regression model in preparation for GWAS. In order to accomplish this, two primary medications were selected: thiazolidinediones and metformin because of the wide-spread use of these medications and large sample sizes available within the ACCORD trial. A third medication, fenofibrate, along with a known confounding medication, statin, were chosen as a proof-of-principle for the scoring procedure. Previous studies have identified SNP rs7412 as being associated with statin response. Here we hypothesize that including the score for statin as a covariate in the GWAS model will correct for confounding of statin and yield a change in association at rs7412. The response of the confounded signal was successfully diminished from p = 3.19 × 10−7 to p = 1.76 × 10−5, by accounting for statin using the scoring procedure presented here. This approach provides the ability for researchers to account for concomitant medications in complex trial designs where monotherapy treatment regimens are not available.
The Effect of Trading by Different Trader Types on Realized Volatility and Jumps: Evidence from the Thai Stock Market
Creators: name: สุภารัตน์  ตันทนงศักดิ์กุล
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2018
Subjects: ความผันผวนที่แท้จริง
ประเภทนักลงทุน
ประเทศไทย
Realized Volatility
Trader types
Thailand

description: จุฬาลงกรณ์ธุรกิจปริทัศน์, 40, 158, 111-142
Resonant Absorption of Transverse Oscillations and Associated Heating in a Solar Prominence. II- Numerical aspects
Creators: name: Antolin, Patrick
name: Okamoto, Takenori J.
name: De Pontieu, Bart
name: Uitenbroek, Han
name: Van Doorsselaere, Tom
name: Yokoyama, Takaaki
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Transverse magnetohydrodynamic (MHD) waves are ubiquitous in the solar atmosphere and may be responsible for generating the Sun's million-degree outer atmosphere. However, direct evidence of the dissipation process and heating from these waves remains elusive. Through advanced numerical simulations combined with appropriate forward modeling of a prominence flux tube, we provide the observational signatures of transverse MHD waves in prominence plasmas. We show that these signatures are characterized by thread-like substructure, strong transverse dynamical coherence, an out-of-phase difference between plane-of-the-sky motions and LOS velocities, and enhanced line broadening and heating around most of the flux tube. A complex combination between resonant absorption and Kelvin-Helmholtz instabilities (KHI) takes place in which the KHI extracts the energy from the resonant layer and dissipates it through vortices and current sheets, which rapidly degenerate into turbulence. An inward enlargement of the boundary is produced in which the turbulent flows conserve the characteristic dynamics from the resonance, therefore guaranteeing detectability of the resonance imprints. We show that the features described in the accompanying paper (Okamoto et al. 2015) through coordinated Hinode and IRIS observations match well the numerical results.
description: This is part 2 of a series of 2 papers. Part 1 corresponds to Okamoto et al. (2015, accepted). 36 Pages (single column), 10 figures. Accepted for publication in The Astrophysical Journal
Brunia africana Class. - Bockh. & E. G. H. Oliv.
Creators: name: Claßen-Bockhoff, Regine
name: Oliver, Edward G. H.
name: Hall, Anthony V.
name: Quint, Marcus
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Bruniales
Bruniaceae
Brunia
Brunia africana

description: Brunia africana (Burm.f.) Class.-Bockh. & E.G.H. Oliv., comb. nov. ≡ Baeckea africana Burm. f., Prodr. Fl. Cap.: 12. 1768 ≡ Pseudobaeckea africana (Burm. f.); Pillans in J. S. African Bot. 13: 141. 1947 – Lectotype (designated here by Oliver): Herb. Burm. Sheet 1 (G).
description: Published as part of Claßen-Bockhoff, Regine, Oliver, Edward G. H., Hall, Anthony V. & Quint, Marcus, 2019, A new classification of the South African endemic family Bruniaceae based on molecular and morphological data, pp. 1138-1155 in TAXON 60 (4) on page 1150, DOI: 10.1002/tax.604016, http://zenodo.org/record/7590433
Illness Perception, Personal Characteristics, Social Support, and Lifestyle Behavior in Patients With Hypertension, Attending a Cardiac Out-Patient Department, Nepal
Creators: name: Maharjan, Rashmi
Publisher: name: Faculty of Medicine Ramathibodi Hospital, Mahidol University
Year: 2018
Subjects: Illness perception
Social support
Lifestyle behavior
Hypertension
Nepal

description: Ramathibodi Medical Journal, 41, 4, 037-047
Adherence of Healthcare Workers Toward the Contact Precaution Guidelines for Patients With Multidrug-Resistant Organisms in a Tertiary Care Hospital
Creators: name: Mukkapon Punpop
Publisher: name: Faculty of Medicine Ramathibodi Hospital, Mahidol University
Year: 2018
Subjects: Contact precaution guidelines
Adherence to guidelines
Multidrug-resistant organisms
Healthcare workers

description: Ramathibodi Medical Journal, 41, 4, 056-064
Genetics of Tinnitus: Time to Biobank Phantom Sounds
Creators: name: Sullivan, Patrick F.
name: Lopez-Escamez, Jose A.
name: Cederroth, Christopher R.
name: Kähler, Anna K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Tinnitus is a common phantom sensation resulting most often from sensory deprivation, and for which little knowledge on the molecular mechanisms exists. While the existing evidence for a genetic influence on the condition has been until now sparse and underpowered, recent data suggest that specific forms of tinnitus have a strong genetic component revealing that not all tinnitus percepts are alike, at least in how they are genetically driven. These new findings pave the way for a better understanding on how phantom sensations are molecularly driven and call for international biobanking efforts.
Source-frequency phase-referencing for low-luminosity AGN
Creators: name: Jiang, Wu
Publisher: name: Zenodo
Year: 2023

description: The source-frequency phase-referencing (SFPR) technique has been demonstrated to have great advantages for mm-VLBI observations. I will report some successful experiments with SFPR, such as the detections of mm-VLBI cores of LLAGNs M81*, M84* and M104*, as well as positioning the black hole M87*. I will also present it as a promising technique for probing supermassive black hole binaries.
The Emerging Role of the Cytoskeleton in Chromosome Dynamics
Creators: name: Fabre, Emmanuelle
name: Spichal, Maya
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Chromosomes underlie a dynamic organization that fulfills functional roles in processes like transcription, DNA repair, nuclear envelope stability, and cell division. Chromosome dynamics depend on chromosome structure and cannot freely diffuse. Furthermore, chromosomes interact closely with their surrounding nuclear environment, which further constrains chromosome dynamics. Recently, several studies enlighten that cytoskeletal proteins regulate dynamic chromosome organization. Cytoskeletal polymers that include actin filaments, microtubules and intermediate filaments can connect to the nuclear envelope via Linker of the Nucleoskeleton and Cytoskeleton (LINC) complexes and transfer forces onto chromosomes inside the nucleus. Monomers of these cytoplasmic polymers and related proteins can also enter the nucleus and play different roles in the interior of the nucleus than they do in the cytoplasm. Nuclear cytoskeletal proteins can act as chromatin remodelers alone or in complexes with other nuclear proteins. They can also act as transcription factors. Many of these mechanisms have been conserved during evolution, indicating that the cytoskeletal regulation of chromosome dynamics is an essential process. In this review, we discuss the different influences of cytoskeletal proteins on chromosome dynamics by focusing on the well-studied model organism budding yeast.
Brunia cordata Class. - Bockh. & E. G. H. Oliv.
Creators: name: Claßen-Bockhoff, Regine
name: Oliver, Edward G. H.
name: Hall, Anthony V.
name: Quint, Marcus
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Bruniales
Bruniaceae
Brunia
Brunia cordata

description: Brunia cordata (Burm. f.) Class.-Bockh. & E.G.H. Oliv., comb. nov. ≡ Baeckea cordata Burm. f., Prodr. Fl. Cap.: 12, 1768 ≡ Pseudobaeckea cordata (Burm. f.) Nied. in Engler & Prantl, Nat. Pflanzenfam 2a: 136. 1891; Pillans in J. S. African Bot. 13: 138. 1947 – Type: still to be resolved with a neotype possibly being required.
description: Published as part of Claßen-Bockhoff, Regine, Oliver, Edward G. H., Hall, Anthony V. & Quint, Marcus, 2019, A new classification of the South African endemic family Bruniaceae based on molecular and morphological data, pp. 1138-1155 in TAXON 60 (4) on page 1150, DOI: 10.1002/tax.604016, http://zenodo.org/record/7590433
VLBI data processing in CASA
Creators: name: Kettenis, Mark
Publisher: name: Zenodo
Year: 2023

description: Over the past years VLBI data processing in CASA has become a reality. It is now a supported alternative to AIPS for EVN continuum observations and has established itself as one of the two official calibration pipelines for the EHT. It can also be used for (EVN) spectral line observations, many VLBA observations and observations by other arrays such as LOFAR-VLBI, e-MERLIN and GMVA. A comprehensive CASA-based VLBI pipeline that supports many of these arrays is available in the form of rPICARD. This presentation will give an overview of VLBI functionality in CASA, as well as current and future developments that are needed to make sure data processing software keeps track with other technical and scientific developments in VLBI and future developments like the ngVLA. Particular areas of interest that will be discussed are support for observation that use multi-band receivers and supporting observations below and above the traditional VLBI spectrum (i.e. LOFAR-VLBI and EHT).
A Voxel-Based Morphometry Study Reveals Local Brain Structural Alterations Associated with Ambient Fine Particles in Older Women
Creators: name: Espeland, Mark A.
name: Driscoll, Ira
name: Vizuete, William
name: Chen, Jiu-Chiuan
name: Serre, Marc L.
name: Casanova, Ramon
name: Reyes, Jeanette
name: Akita, Yasuyuki
name: Chui, Helena C.
name: Resnick, Susan M.
name: Wang, Xinhui
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Objective: Exposure to ambient fine particulate matter (PM2.5: PM with aerodynamic diameters < 2.5 μm) has been linked with cognitive deficits in older adults. Using fine-grained voxel-wise analyses, we examined whether PM2.5 exposure also affects brain structure.
Impact of Dual Energy Window Scatter Correction on Image Quality in Tomographic Iodine 131
Creators: name: Wirinya Saengthamchai
Publisher: name: Faculty of Medicine Ramathibodi Hospital, Mahidol University
Year: 2018
Subjects: Scatter correction
DEW
SPECT
Iodine-131
Image quality

description: Ramathibodi Medical Journal, 41, 4, 065-073
Factors Associated With Cardiorespiratory Fitness in Postmenopausal Women With Prehypertension in Thailand
Creators: name: Sukanya Tantiprasoplap
Publisher: name: Faculty of Medicine Ramathibodi Hospital, Mahidol University
Year: 2018
Subjects: Cardiorespiratory fitness
Postmenopausal women
Prehypertension

description: Ramathibodi Medical Journal, 41, 4, 074-080
COMT Val158Met Polymorphism Exerts Sex-Dependent Effects on fMRI Measures of Brain Function
Creators: name: Boettiger, Charlotte A.
name: Parrish, Michael H.
name: Elton, Amanda
name: Smith, Christopher T.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Evidence suggests that dopamine levels in the prefrontal cortex (PFC) modulate executive functions. A key regulator of PFC dopamine is catechol-O-methyltransferase (COMT). The activity level of the COMT enzyme are influenced by sex and the Val158Met polymorphism (rs4680) of the COMT gene, with male sex and Val alleles both being associated with higher bulk enzyme activity, and presumably lower PFC dopamine. COMT genotype has not only been associated with individual differences in frontal dopamine-mediated behaviors, but also with variations in neuroimaging measures of brain activity and functional connectivity. In this study, we investigated whether COMT genotype predicts individual differences in neural activity and connectivity, and whether such effects are sex-dependent. We tested 93 healthy adults (48 females), genotyped for the Val158Met polymorphism, in a delay discounting task and at rest during fMRI. Delay discounting behavior was predicted by an interaction of COMT genotype and sex, consistent with a U-shaped relationship with enzyme activity. COMT genotype and sex similarly exhibited U-shaped relationships with individual differences in neural activation, particularly among networks that were most engaged by the task, including the default-mode network. Effects of COMT genotype and sex on functional connectivity during rest were also U-shaped. In contrast, flexible reorganization of network connections across task conditions varied linearly with COMT among both sexes. These data provide insight into the potential influences of COMT-regulated variations in catecholamine levels on brain function, which may represent endophenotypes for disorders of impulsivity.
Measuring Professional Culture in a Thai Medical School Using the Dundee Barometer of Institutional Professionalism (DBIP)
Creators: name: Panitee Poonpetcharat
Publisher: name: Faculty of Medicine Ramathibodi Hospital, Mahidol University
Year: 2018
Subjects: Medical professionalism
Assessment of medical professionalism

description: Ramathibodi Medical Journal, 41, 4, 081-089
High-fidelity wideband VLBI polarimetry
Creators: name: Martí-Vidal, Iván
Publisher: name: Zenodo
Year: 2023

description: We will discuss about wideband and multiband VLBI observations taken with linear-polarization feeds (the simplest hardware polarimetry for wide bands), and how these observations can be calibrated and fringe-fitted with special software, in order to produce full-polarization images with a high fidelity. We will show results from real observations, taken with the VGOS array, and discuss about future applicability of these algorithms in future VLBI arrays.
Anomalous broadening in driven dissipative Rydberg systems
Creators: name: Goldschmidt, E. A.
name: Boulier, T.
name: Brown, R. C.
name: Koller, S. B.
name: Young, J. T.
name: Gorshkov, A. V.
name: Rolston, S. L.
name: Porto, J. V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We observe interaction-induced broadening of the two-photon 5s-18s transition in 87Rb atoms trapped in a 3D optical lattice. The measured linewidth increases by nearly two orders of magnitude with increasing atomic density and excitation strength, with corresponding suppression of resonant scattering and enhancement of off-resonant scattering. We attribute the increased linewidth to resonant dipole-dipole interactions of 18s atoms with spontaneously created populations of nearby np states. Over a range of initial atomic densities and excitation strengths, the transition width is described by a single function of the steady-state density of Rydberg atoms, and the observed resonant excitation rate corresponds to that of a two-level system with the measured, rather than natural, linewidth. The broadening mechanism observed here is likely to have negative implications for many proposals with coherently interacting Rydberg atoms.
description: 5+3 pages
Emotional Granularity Effects on Event-Related Brain Potentials during Affective Picture Processing
Creators: name: Lee, Ja Y.
name: Lindquist, Kristen A.
name: Nam, Chang S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: There is debate about whether emotional granularity, the tendency to label emotions in a nuanced and specific manner, is merely a product of labeling abilities, or a systematic difference in the experience of emotion during emotionally evocative events. According to the Conceptual Act Theory of Emotion (CAT) (Barrett, 2006), emotional granularity is due to the latter and is a product of on-going temporal differences in how individuals categorize and thus make meaning of their affective states. To address this question, the present study investigated the effects of individual differences in emotional granularity on electroencephalography-based brain activity during the experience of emotion in response to affective images. Event-related potentials (ERP) and event-related desynchronization and synchronization (ERD/ERS) analysis techniques were used. We found that ERP responses during the very early (60–90 ms), middle (270–300 ms), and later (540–570 ms) moments of stimulus presentation were associated with individuals’ level of granularity. We also observed that highly granular individuals, compared to lowly granular individuals, exhibited relatively stable desynchronization of alpha power (8–12 Hz) and synchronization of gamma power (30–50 Hz) during the 3 s of stimulus presentation. Overall, our results suggest that emotional granularity is related to differences in neural processing throughout emotional experiences and that high granularity could be associated with access to executive control resources and a more habitual processing of affective stimuli, or a kind of “emotional complexity.” Implications for models of emotion are also discussed.
Motor Unit Activity during Fatiguing Isometric Muscle Contraction in Hemispheric Stroke Survivors
Creators: name: Lowery, Madeleine M.
name: Suresh, Nina L.
name: Hu, Xiaogang
name: McManus, Lara
name: Rymer, William Z.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Enhanced muscle weakness is commonly experienced following stroke and may be accompanied by increased susceptibility to fatigue. To examine the contributions of central and peripheral factors to isometric muscle fatigue in stroke survivors, this study investigates changes in motor unit (MU) mean firing rate, and action potential duration during, and directly following, a sustained submaximal fatiguing contraction at 30% maximum voluntary contraction (MVC). A series of short contractions of the first dorsal interosseous muscle were performed pre- and post-fatigue at 20% MVC, and again following a 10-min recovery period, by 12 chronic stroke survivors. Individual MU firing times were extracted using surface EMG decomposition and used to obtain the spike-triggered average MU action potential waveforms. During the sustained fatiguing contraction, the mean rate of change in firing rate across all detected MUs was greater on the affected side (-0.02 ± 0.03 Hz/s) than on the less-affected side (-0.004 ± 0.003 Hz/s, p = 0.045). The change in firing rate immediately post-fatigue was also greater on the affected side than less-affected side (-13.5 ± 20 and 0.1 ± 19%, p = 0.04). Mean MU firing rates increased following the recovery period on the less-affected side when compared to the affected side (19.3 ± 17 and 0.5 ± 20%, respectively, p = 0.03). MU action potential duration increased post-fatigue on both sides (10.3 ± 1.2 to 11.2 ± 1.3 ms on the affected side and 9.9 ± 1.7 to 11.2 ± 1.9 ms on the less-affected side, p = 0.001 and p = 0.02, respectively), and changes in action potential duration tended to be smaller in subjects with greater impairment (p = 0.04). This study presents evidence of both central and peripheral fatigue at the MU level during isometric fatiguing contraction for the first time in stroke survivors. Together, these preliminary observations indicate that the response to an isometric fatiguing contraction differs between the affected and less-affected side post-stroke, and may suggest that central mechanisms observed here as changes in firing rate are the dominant processes leading to task failure on the affected side.
Brunia pillansii Class.-Bockh. & E.G.H. Oliv. 1947
Creators: name: Claßen-Bockhoff, Regine
name: Oliver, Edward G. H.
name: Hall, Anthony V.
name: Quint, Marcus
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Bruniales
Bruniaceae
Brunia
Brunia pillansii

description: Brunia pillansii Class.-Bockh. & E.G.H. Oliv., nom. nov. pro Pseudobaeckea stokoei Pillans (1947), non Brunia stokoei E. Phillips (1922) (= Berzelia stokoei (E. Phillips) A.V. Hall) – Type: Caledon Div., Klein River Mts, 2000– 3000 ft, Aug.–Sept. 1920, Stokoe in BOL 16886 (BOL- 121566!, holo; K-75890!, iso). Placement of this species in Brunia subg. Pseudobaeckea is based on morphological data as anther morphology, 5- to 10-colporate pollen grains, stamens included, petal morphology, and erect-spreading leaves; the species was not included in the DNA analysis.
description: Published as part of Claßen-Bockhoff, Regine, Oliver, Edward G. H., Hall, Anthony V. & Quint, Marcus, 2019, A new classification of the South African endemic family Bruniaceae based on molecular and morphological data, pp. 1138-1155 in TAXON 60 (4) on page 1150, DOI: 10.1002/tax.604016, http://zenodo.org/record/7590433
description: {"references": ["Pillans, N. S. 1947. A revision of Bruniaceae. J. S. African Bot. 13: 121 - 206."]}
Dispersion Estimates for the Discrete Laguerre Operator
Creators: name: Kostenko, Aleksey
name: Teschl, Gerald
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 35Q41, 47B36, Secondary 81U30, 81Q05

description: We derive an explicit expression for the kernel of the evolution group $\exp(-\mathrm{i} t H_0)$ of the discrete Laguerre operator $H_0$ (i.e. the Jacobi operator associated with the Laguerre polynomials) in terms of Jacobi polynomials. Based on this expression we show that the norm of the evolution group acting from $\ell^1$ to $\ell^\infty$ is given by $(1+t^2)^{-1/2}$.
description: 9 pages
Multi-Modal Integration of EEG-fNIRS for Brain-Computer Interfaces – Current Limitations and Future Directions
Creators: name: Jun, Sung C.
name: Ahn, Sangtae
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Multi-modal integration, which combines multiple neurophysiological signals, is gaining more attention for its potential to supplement single modality’s drawbacks and yield reliable results by extracting complementary features. In particular, integration of electroencephalography (EEG) and functional near-infrared spectroscopy (fNIRS) is cost-effective and portable, and therefore is a fascinating approach to brain-computer interface (BCI). However, outcomes from the integration of these two modalities have yielded only modest improvement in BCI performance because of the lack of approaches to integrate the two different features. In addition, mismatch of recording locations may hinder further improvement. In this literature review, we surveyed studies of the integration of EEG/fNIRS in BCI thoroughly and discussed its current limitations. We also suggested future directions for efficient and successful multi-modal integration of EEG/fNIRS in BCI systems.
Exploring Episodic Accretion in Star Formation with the INAF VLBI Network
Creators: name: Bayandina, Olga
Publisher: name: Zenodo
Year: 2023

description: New high-frequency tri-band (K, Q, and W) receivers will soon be installed to the telescopes of the INAF VLBI network (the Sardinia, Medicina, and Noto Radio Telescopes). The upgrade promises to open new horizons for studying many astronomical phenomena and, in particular, massive star formation. Disk-mediated accretion with episodic accretion bursts is the leading theory of star formation. However, in the case of massive young stellar objects (MYSOs) it has found little practical evidence yet - to date, only four accretion bursts have been detected. An excellent indicator of accretion bursts in MYSO are masers: from maser flares at the onset of a burst to maser-traced bow shocks in the aftermath of a burst. VLBI observations of masers are critical as they reveal the overall picture of the bursting region and unfold the place of masers in it. However, accretion burst associated maser flares are extremely short-lived and require great deal of flexibility from a VLBI array to catch the burst onset. In turn, studying the origin and evolution of bow shocks traced by high-frequency masers consumes a lot of VLBI array's time, which has led to a very limited sample of studied sources. To solve these problems, a fast-response and scheduling flexible VLBI array equipped with cutting-edge high-frequency receivers is required - exactly what the INAF VLBI network upgrade will provide.
A Keplerian disk with a four-arm spiral birthing an episodically accreting high-mass protostar
Creators: name: Ross, Burns
Publisher: name: Zenodo
Year: 2023

description: High-mass protostars (M⋆ > 8 M⊙) are thought to gain the majority of their mass via short, intense bursts of growth. This episodic accretion is thought to be facilitated by gravitationally unstable and subsequently inhomogeneous accretion disks. Limitations of observational capabilities, paired with a lack of observed accretion burst events has withheld affirmative confirmation of the association between disk accretion, instability and the accretion burst phenomenon in high-mass protostars. Following its 2019 accretion burst, a heat-wave driven by a burst of radiation propagated outward from the high-mass protostar G358.93-0.03-MM1. Six VLBI (very long baseline interferometry) observations of the raditively pumped 6.7 GHz methanol maser were conducted during this period, tracing ever increasing disk radii as the heat-wave propagated outward. Concatenating the VLBI maps provided a sparsely sampled, milliarcsecond view of the spatio-kinematics of the accretion disk covering a physical range of ∼ 50 - 900 AU. We term this obser- vational approach ‘heat-wave mapping’. We report the discovery of a Keplerian accretion disk with a spatially resolved four-arm spiral pattern around G358.93-0.03-MM1. This result positively implicates disk accretion and spiral arm instabilities into the episodic accretion high-mass star formation paradigm.
Neuroimaging of Human Balance Control: A Systematic Review
Creators: name: Franz, Jason R.
name: Wittenberg, Ellen
name: Thompson, Jessica
name: Nam, Chang S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: This review examined 83 articles using neuroimaging modalities to investigate the neural correlates underlying static and dynamic human balance control, with aims to support future mobile neuroimaging research in the balance control domain. Furthermore, this review analyzed the mobility of the neuroimaging hardware and research paradigms as well as the analytical methodology to identify and remove movement artifact in the acquired brain signal. We found that the majority of static balance control tasks utilized mechanical perturbations to invoke feet-in-place responses (27 out of 38 studies), while cognitive dual-task conditions were commonly used to challenge balance in dynamic balance control tasks (20 out of 32 studies). While frequency analysis and event related potential characteristics supported enhanced brain activation during static balance control, that in dynamic balance control studies was supported by spatial and frequency analysis. Twenty-three of the 50 studies utilizing EEG utilized independent component analysis to remove movement artifacts from the acquired brain signals. Lastly, only eight studies used truly mobile neuroimaging hardware systems. This review provides evidence to support an increase in brain activation in balance control tasks, regardless of mechanical, cognitive, or sensory challenges. Furthermore, the current body of literature demonstrates the use of advanced signal processing methodologies to analyze brain activity during movement. However, the static nature of neuroimaging hardware and conventional balance control paradigms prevent full mobility and limit our knowledge of neural mechanisms underlying balance control.
Brunia thomae Class.-Bockh. & E.G.H. Oliv. 1922
Creators: name: Claßen-Bockhoff, Regine
name: Oliver, Edward G. H.
name: Hall, Anthony V.
name: Quint, Marcus
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Bruniales
Bruniaceae
Brunia
Brunia thomae

description: Brunia thomae Class.-Bockh. & E.G.H. Oliv., nom. nov. pro Raspalia stokoei Pillans (1947) non Brunia stokoei E. Phillips (1922) (= Berzelia stokoei (E. Phillips) A.V. Hall) – Type: Tulbagh Div.: Little Winterhoek, 3000 ft, Dec 1920, Stokoe 346 (BOL-122386!, holo; BOL-122385!, PRE-433223, iso).
description: Published as part of Claßen-Bockhoff, Regine, Oliver, Edward G. H., Hall, Anthony V. & Quint, Marcus, 2019, A new classification of the South African endemic family Bruniaceae based on molecular and morphological data, pp. 1138-1155 in TAXON 60 (4) on page 1150, DOI: 10.1002/tax.604016, http://zenodo.org/record/7590433
description: {"references": ["Pillans, N. S. 1947. A revision of Bruniaceae. J. S. African Bot. 13: 121 - 206."]}
US-Bundesgericht verneint "konstitutionelles Recht auf Abtreibung"
Creators: name: Sommer, Norbert
Publisher: name: Herder Korrespondenz
Year: 1970

description: Herder Korrespondenz, Bd. 31 Nr. 9 (1977): Herder Korrespondenz, Band 31, Heft 9