cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Associations of Obesity Measures with Subtypes of Ischemic Stroke in the ARIC Study
Creators: name: Yatsuya, Hiroshi
name: North, Kari E.
name: Yamagishi, Kazumasa
name: Brancati, Frederick L.
name: Folsom, Aaron R.
name: Stevens, June
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: BackgroundAssociations between obesity and lacunar, nonlacunar thrombotic, and cardioembolic stroke are not firmly established.MethodsBody mass index (BMI), waist circumference, and waist-to-hip ratio (WHR) were recorded at baseline between 1987 and 1989 in the Atherosclerosis Risk in Communities (ARIC) Study for 13 549 black and white adults who were aged from 45 to 64 years and had no history of cardiovascular disease or cancer. The incidence of ischemic stroke subtypes was ascertained from surveillance of hospital records over a median follow-up of 16.9 years. Cox proportional hazards regression analyses adjusted for age, sex, race, education, smoking status and cigarette years, usual ethanol intake, and leisure time sports index were used to estimate hazard ratios (HRs).ResultsThe ARIC sample at baseline was 43.8% men and 27.3% blacks; mean age was 53.9 years. Mean BMI, waist circumference, and WHR were 27.7 kg/m2, 96.8 cm, and 0.92, respectively. The associations of lacunar (n = 138), nonlacunar (n = 338), and cardioembolic (n = 122) ischemic stroke incidence with obesity measures were all generally positive and linear. The HRs for the highest versus lowest quintile of the 3 obesity measures ranged from 1.43–2.21 for lacunar stroke, 1.90–2.16 for nonlacunar stroke, and 2.37–2.91 for cardioembolic stroke.ConclusionsAlthough different pathophysiological mechanisms may exist, the incidences of lacunar, nonlacunar, and cardioembolic stroke were all significantly positively associated with the degree of obesity, regardless of the measure used.
title: Shear-wave elastography of antenatal cervix: a new diagnostic tool for prediction of preterm birth and its correlation with other sonographic markers
Creators: name: AGARWAL, ARJIT
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Obstetrics (Pregnancy / birth / postnatal period)
subject: Foetal imaging
subject: Genital / Reproductive system female
subject: Elastography
subject: Ultrasound
subject: Intrauterine diagnosis
subject: Technology assessment
subject: Obstetrics
subject: Foetus

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Preterm birth is defined as delivery onset before the completed 37 weeks of gestation and it varies in developed and developing nations according to the age of viability. [1-3] The entity poses a major health problem across the globe and the...
Assessment of Response Time for New Multi Level Feedback Queue Scheduler
Creators: name: Rao, M. V. Panduranga
name: Shet, K. C.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences
subject: D.3.2
subject: 68U20

description: Response time is one of the characteristics of scheduler, happens to be a prominent attribute of any CPU scheduling algorithm. The proposed New Multi Level Feedback Queue [NMLFQ] Scheduler is compared with dynamic, real time, Dependent Activity Scheduling Algorithm (DASA) and Lockes Best Effort Scheduling Algorithm (LBESA). We abbreviated beneficial result of NMLFQ scheduler in comparison with dynamic best effort schedulers with respect to response time.
description: 7 pages, 5 figures
title: Radiological evaluation of Nasopharyngeal masses in adults.
Creators: name: Lahiri, Ashim
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Head and neck
subject: MR
subject: CT
subject: Observer performance
subject: Imaging sequences
subject: Cancer

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: We aim to provide an educational pictorial review to understand the normal anatomy of nasopharynx and radiological appearances of various nasopharyngeal mass lesions in adults. The main focus of this presentation is to describe the imaging features...
Disentangling the dominant drivers of gravity wave variability in the Martian thermosphere
Creators: name: Rao, N. V.
name: Leelavathi, V.
name: Yaswanth, Ch.
name: Rao, S. V. B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: In this study, we extracted the amplitudes of the gravity waves (GWs)from the neutral densities measured in situ by the neutral gas and ion mass spectrometer aboard the Mars atmosphere and volatile evolution mission. The spatial and temporal variabilities of the GWs show that solar activity (the F10.7 cm solar flux corrected for a heliocentric distance of 1.66 AU), solar insolation, and the lower atmospheric dust are the dominant drivers of the GW variability in the thermosphere. We developed a methodology in which a linear regression analysis has been used to disentangle the complex variabilities of the GWs. The three dominant drivers could account for most of the variability in the GW amplitudes. Variability caused by the sources of GWs and the effects of winds and the global circulation in the mesosphere and lower thermosphere are the other factors that could not be addressed. The results of the present study show that for every 100 sfu increase in the solar activity, the GW amplitudes in the thermosphere decrease by ~9%. Solar insolation drives the diurnal, seasonal and latitudinal variations of ~9%, ~4% and ~6%, respectively. Using the historical data of the dust opacity and solar activity, we estimated the GW amplitudes of the Martian thermosphere from MY 24 to MY 35. The GW amplitudes were significantly reduced during the maximum of solar cycle 23 and were highest in the solar minimum. The global dust storms of MY 25, 28, and 34 lead to significant enhancements in the GW amplitudes.
description: Accepted for publication in the astrophysical journal; 18 pages
A new scale to measure family members' perception of community health care services for persons with Huntington disease
Creators: name: Barnette, Jack J.
name: Sousa, Valmi D.
name: Williams, Janet K.
name: Reed, David A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Huntington Disease (HD) is a progressive genetic brain disease leading to disruptive cognitive, behavioral, and physical impairments. Persons with the condition and their caregivers need appropriate and accessible health care services to help them manage the disease adequately. The purpose of this study was to evaluate the psychometric properties of a new scale that measures family members' perception of community health care services (CHCS) for persons with HD.
title: A computer-aided diagnosis system for the assessment and characterisation of low-to-high suspicion thyroid nodules on ultrasound
Creators: name: Gitto, Salvatore
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Thyroid / Parathyroids
subject: Ultrasound
subject: Computer Applications-Detection, diagnosis
subject: CAD

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: Thyroid nodules are detected in up to 68% of general population and malignancies are observed in 3-10% of cases [1,2]. The critical role of the radiologists is to detect and characterize thyroid nodules with ultrasound (US) and US-guided fine needle...
Gravitational and topological effects on $\sqrt{-F^2}$ Confinement Dynamics
Creators: name: Vasihoun, Mahary
name: Guendelman, Eduardo
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a review, of recent developments on non-linear gauge theory containing a $\sqrt{-F^2}$ term, known to produce "confining" features in flat space, coupled to gravity.
Untitled Item
Creators: name: SILVA, A.R.S.
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 390402
subject: Education assessment and evaluation

description: Este artigo propõe um instrumento de avaliação para ambientes virtuais de aprendizagem, em que o uso de vetores e suas características (intensidade e direção) procuram estabelecer juízo de valor às atividades desenvolvidas em suas ferramentas de interação, tais como: Fóruns, Chats e Portfólio. Pretende-se com este instrumento ampliar as possibilidades de conotação qualitativa a ser dada à avaliação em educação à distância.
Combining adjusted and unadjusted findings in mixed research synthesis
Creators: name: Chang, YunKyung
name: Sandelowski, Margarete
name: Voils, Corrine I.
name: Crandell, Jamie L.
name: Leeman, Jennifer
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Finding ways to incorporate disparate types of evidence into research syntheses has the potential to build a better evidence base for clinical practice and policy. Yet conducting such mixed research synthesis studies is challenging. Researchers have to determine whether and how to use adjusted and unadjusted quantitative findings in combination with each other and with qualitative findings.
title: Accuracy of ultrasound-guided percutaneous 18G core biopsy in the evaluation of thyroid nodules: comparison with fine-needle aspiration and with 20G core-needle biopsy.
Creators: name: Pasetto, Stefano
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Neoplasia
subject: Puncture
subject: Biopsy
subject: Ultrasound
subject: Thyroid / Parathyroids
subject: Interventional non-vascular

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: At present, thyroid nodules are a common problem. Out of the vast amount of thyroid nodules detected, only 7%–16% of them will be eventually diagnosed as malignant. Therefore, an accurate and efficient diagnostic tool is critical for triaging...
The JCMT Transient Survey: Single Epoch Transients and Variability of Faint Sources
Creators: name: Johnstone, Doug
name: Lalchand, Bhavana
name: Mairs, Steve
name: Shang, Hsien
name: Chen, Wen Ping
name: Bower, Geoffrey C.
name: Herczeg, Gregory J.
name: Lee, Jeong-Eun
name: Forbrich, Jan
name: Chen, Bo-Yan
name: Contreras-Pena, Carlos
name: Lee, Yong-Hee
name: Park, Wooseok
name: Broughton, Colton
name: Plovie, Spencer
name: Team, The JCMT Transient
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Short-duration flares at millimeter wavelengths provide unique insights into the strongest magnetic reconnection events in stellar coronae, and combine with longer-term variability to introduce complications to next-generation cosmology surveys. We analyze 5.5 years of JCMT Transient Survey 850 micron submillimeter monitoring observations toward eight Gould Belt star-forming regions to search for evidence of transient events or long-duration variability from faint sources. The eight regions (30 arcmin diameter fields), including ~1200 infrared-selected YSOs, have been observed on average 47 times with integrations of approximately half an hour, or one day total spread over 5.5 years. Within this large data set, only two robust faint source detections are recovered: JW 566 in OMC 2/3 and MGM12 2864 in NGC 2023. JW 566, a Class II TTauri binary system previously identified as an extraordinary submillimeter flare, remains unique, the only clear single-epoch transient detection in this sample with a flare eight times bright than our ~4.5 sigma detection threshold of 55 mJy/beam. The lack of additional recovered flares intermediate between JW 566 and our detection limit is puzzling, if smaller events are more common than larger events. In contrast, the other submillimeter variable identified in our analysis, Source 2864, is highly variable on all observed timescales. Although Source 2864 is occasionally classified as a YSO, the source is most likely a blazar. The degree of variability across the electromagnetic spectrum may be used to aid source classification.
description: Accepted for publication in the Astrophysicall Journal. 17 pages, 6 figures, 2 tables
title: Imaging Spectrum of Small-vessel White Matter Disease
Creators: name: Alkaphoury, Muhammad
Publisher: name: European Congress of Radiology
Year: 2018
Subjects: subject: MR
subject: CT
subject: CNS
subject: Education
subject: Ischaemia / Infarction

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The aim of this educational exhibit is to: Review pathophysiology and classification of small-vessel white matter disease and its relation to dementia. Cover the imaging spectrum of small-vessel white matter disease with representative cases from...
Migratory Outbursting Quasi-Hilda Object 282P/(323137) 2003 BM80
Creators: name: Chandler, Colin Orion
name: Oldroyd, William J.
name: Trujillo, Chadwick A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report object 282P/(323137) 2003 BM80 is undergoing a sustained activity outburst, lasting over 15 months thus far. These findings stem in part from our NASA Partner Citizen Science project Active Asteroids (http://activeasteroids.net), which we introduce here. We acquired new observations of 282P via our observing campaign (Vatican Advanced Technology Telescope, Lowell Discovery Telescope, and the Gemini South telescope), confirming 282P was active on UT 2022 June 7, some 15 months after 2021 March images showed activity in the 2021/2022 epoch. We classify 282P as a member of the Quasi-Hilda Objects, a group of dynamically unstable objects found in an orbital region similar to, but distinct in their dynamical characteristics to, the Hilda asteroids (objects in 3:2 resonance with Jupiter). Our dynamical simulations show 282P has undergone at least five close encounters with Jupiter and one with Saturn over the last 180 years. 282P was most likely a Centaur or Jupiter Family Comet (JFC) 250 years ago. In 350 years, following some 15 strong Jovian interactions, 282P will most likely migrate to become a JFC or, less likely, a main-belt asteroid. These migrations highlight a dynamical pathway connecting Centaurs and JFC with Quasi-Hildas and, potentially, active asteroids. Synthesizing these results with our thermodynamical modeling and new activity observations, we find volatile sublimation is the primary activity mechanism. Observations of a quiescent 282P, which we anticipate will be possible in 2023, will help confirm our hypothesis by measuring a rotation period and ascertaining spectral type.
description: 23 pages, 5 figures
title: Relationship between CCA-ICA angle and plaque composition
Creators: name: Corrias, Giuseppe
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Segmentation
subject: CAD
subject: CT
subject: CAD
subject: Vascular
subject: Arteries / Aorta
subject: Arteriosclerosis

description: Aims and objectives Methods and materials Results Conclusion Personal information References
description: Aims and objectives: The aim of our study is to demonstrate whether there is a relationship between the angle of Common Carotid Artery (CCA) and Internal Carotid Artery (ICA) and atherosclerotic plaque composition in terms of Fat, Mixed, Calcific plaque and plaque...
Disappearing and Reappearing Differences in Drug-Eluting Stent Use by Race
Creators: name: Triplette, Matthew A.
name: Stearns, Sally C.
name: Sheridan, Brett C.
name: D'Arcy, Laura P.
name: Geissler, Kimberley H.
name: Reiter, Kristin L.
name: Rossi, Joseph S.
name: Federspiel, Jerome J.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Drug-eluting coronary stents (DES) rapidly dominated the marketplace in the United States after approval by the Food and Drug Administration in April 2003, but utilization rates were initially lower among African-American patients. We assess whether racial differences persisted as DES diffused into practice.
MICA/B expression is inhibited by unfolded protein response and associated with poor prognosis in human hepatocellular carcinoma
Creators: name: Jin, Boquan
name: Yang, Angang
name: Ting, Jenny P -Y
name: Wang, Ying
name: Song, Chaojun
name: Zhang, Chunmei
name: Li, Zengshan
name: Chen, Lihua
name: Wang, Zhe
name: Zhang, Yun
name: Fang, Liang
name: Liu, Rongrong
name: Gong, Jiuyu
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: BackgroundMICA/B are major ligands for NK cell activating receptor NKG2D and previous studies showed that the serum level of soluble MICA (sMICA) is an independent prognostic factor for advanced human hepatocellular carcinoma. However, the correlation between cellular MICA/B expression pattern and human hepatocellular carcinoma progression has not been well explored. The unfolded protein response is one of the main causes of resistance to chemotherapy and radiotherapy in tumor cells. However, whether the UPR in HCC could regulate the expression levels of MICA/B and affect the sensitivity of HCC cells to NK cell cytolysis has not been established yet.MethodsMICA/B expression pattern was evaluated by immunohistochemistry and Kaplan-Meier survival analysis was done to explore the relationship between MICA/B expression level and patient survival. The protein and mRNA expression levels of MICA/B in SMMC7721 and HepG2 cells treated by tunicamycin were evaluated by flow cytometry, Western Blot and RT-PCR. The cytotoxicity analysis was performed with the CytoTox 96 Non-Radioactive LDH Cytotoxicity Assay.ResultsMICA/B was highly expressed in human hepatocellular carcinoma and the expression level was significantly and negatively associated with tumor-node metastasis (TNM) stages. Patients with low level of MICA/B expression showed a trend of shorter survival time. The unfolded protein response (UPR) downregulated the expression of MICA/B. This decreased protein expression occurred via post-transcriptional regulation and was associated with proteasomal degradation. Moreover, decreased expression level of MICA/B led to the attenuated sensitivity of human HCC to NK cell cytotoxicity.ConclusionThese new findings of the connection of MICA/B, UPR and NK cells may represent a new concrete theory of NK cell regulation in HCC, and suggest that targeting this novel NK cell-associated immune evasion pathway may be meaningful in treating patients with HCC.Electronic supplementary materialThe online version of this article (doi:10.1186/s13046-014-0076-7) contains supplementary material, which is available to authorized users.
title: Sellar region: a wide spectrum of rare tumoral and “tumor like” pathologies, pictorial essay
Creators: name: Adri, Daniel
Publisher: name: European Congress of Radiology
Year: 2017
Subjects: subject: Neuroradiology brain
subject: MR
subject: eLearning
subject: Endocrine disorders

description: Learning objectives Background Findings and procedure details Conclusion Personal information References
description: Learning objectives: The purpose of this paper is to show infrequently differential diagnosis of variable tumors and “tumor like” pathologies in our institution, including: pituicytoma, germinoma, chordoma, lymphoma, Autoimmune hypophysitis, ectopic...
Acetaldehyde binding energies: a coupled experimental and theoretical study
Creators: name: Ferrero, S.
name: Grieco, F.
name: Mohamed, A-S. Ibrahim
name: Dulieu, F.
name: Rimola, A.
name: Ceccarelli, C.
name: Nervi, C.
name: Minissale, M.
name: Ugliengo, P.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Acetaldehyde is one of the most common and abundant gaseous interstellar complex organic molecules, found in cold and hot regions of the molecular interstellar medium. Its presence in the gas-phase depends on the chemical formation and destruction routes, and its binding energy (BE) governs whether acetaldehyde remains frozen onto the interstellar dust grains or not. In this work, we report a combined study of the acetaldehyde BE obtained via laboratory TPD (Temperature Programmed Desorption) experiments and theoretical quantum chemical computations. BEs have been measured and computed as a pure acetaldehyde ice and as mixed with both polycrystalline and amorphous water ice. Both calculations and experiments found a BE distribution on amorphous solid water that covers the 4000--6000 K range, when a pre-exponential factor of $1.1\times 10^{18}s^{-1}$ is used for the interpretation of the experiments. We discuss in detail the importance of using a consistent couple of BE and pre-exponential factor values when comparing experiments and computations, as well as when introducing them in astrochemical models. Based on the comparison of the acetaldehyde BEs measured and computed in the present work with those of other species, we predict that acetaldehyde is less volatile than formaldehyde, but much more than water, methanol, ethanol, and formamide. We discuss the astrochemical implications of our findings and how recent astronomical high spatial resolution observations show a chemical differentiation involving acetaldehyde, which can easily explained as due to the different BEs of the observed molecules.
description: 12 pages, 6 figures
Identification of auxins by a chemical genomics approach
Creators: name: Jones, Alan M.
name: Christian, May
name: Lüthen, Hartwig
name: Hannah, William B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2008

description: Thirteen auxenic compounds were discovered in a screen of 10 000 compounds for auxin-like activity in Arabidopsis roots. One of the most potent substances was 2-(4-chloro-2-methylphenoxy)-N-(4-H-1,2,4-triazol-3-yl)acetamide (WH7) which shares similar structure to the known auxenic herbicide 2,4-dichlorophenoxyacetic acid (2,4-D). A selected set of 20 analogues of WH7 was used to provide detailed information about the structure–activity relationship based on their efficacy at inhibiting and stimulating root and shoot growth, respectively, and at induction of gene expression. It was shown that WH7 acts in a genetically defined auxin pathway. These small molecules will extend the arsenal of substances that can be used to define auxin perception site(s) and to dissect subsequent signalling events.
The long stare at Hercules X-1 -- I. Emission lines from the outer disk, the magnetosphere boundary and the accretion curtain
Creators: name: Kosec, P.
name: Kara, E.
name: Fabian, A. C.
name: Furst, F.
name: Pinto, C.
name: Psaradaki, I.
name: Reynolds, C. S.
name: Rogantini, D.
name: Walton, D. J.
name: Ballhausen, R.
name: Canizares, C.
name: Dyda, S.
name: Staubert, R.
name: Wilms, J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Hercules X-1 is a nearly edge-on accreting X-ray pulsar with a warped accretion disk, precessing with a period of about 35 days. The disk precession allows for unique and changing sightlines towards the X-ray source. To investigate the accretion flow at a variety of sightlines, we obtained a large observational campaign on Her X-1 with XMM-Newton (380 ks exposure) and Chandra (50 ks exposure) for a significant fraction of a single disk precession cycle, resulting in one of the best datasets taken to date on a neutron star X-ray binary. Here we present the spectral analysis of the High State high-resolution grating and CCD datasets, including the extensive archival data available for this famous system. The observations reveal a complex Fe K region structure, with three emission line components of different velocity widths. Similarly, the high-resolution soft X-ray spectra reveal a number of emission lines of various widths. We correct for the uncertain gain of the EPIC-pn Timing mode spectra, and track the evolution of these spectral components with Her X-1 precession phase and observed luminosity. We find evidence for three groups of emission lines: one originates in the outer accretion disk (10^5 RG from the neutron star). The second line group plausibly originates at the boundary between the inner disk and the pulsar magnetosphere (10^3 RG). The last group is too broad to arise in the magnetically-truncated disk and instead must originate very close to the neutron star surface, likely from X-ray reflection from the accretion curtain (~10^2 RG).
description: Accepted for publication in ApJ. 26 pages, 17 figures, 4 tables
Reduced expression of a gene encoding a Golgi localized monosaccharide transporter (OsGMST1) confers hypersensitivity to salt in rice (Oryza sativa)
Creators: name: Xu, Yunyuan
name: Cao, Hong
name: Guo, Siyi
name: Jiang, Kun
name: Jones, Alan M.
name: Chong, Kang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Sugar transport is critical for normal plant development and stress responses. However, functional evidence for the roles of monosaccharide transporters in rice (Oryza sativa) has not previously been presented. In this study, reversed genetics was used to identify OsGMST1 as a member of the monosaccharide transporter family in rice. The predicted 481 amino acid protein has the typical features of a sugar transporter in the plastid glucose transporter subfamily consistent with reduced monosaccharide accumulation in plants with reduced OsGMST1 expression. OsGMST1-green fluorescent protein is localized to the Golgi apparatus. OsGMST1 expression is induced by salt treatment and reduced expression confers hypersensitivity to salt stress in rice. OsGMST1 may play a direct or an indirect role in tolerance to salt stress in rice.
Maps on classes of Hilbert space operators preserving measure of commutativity
Creators: name: Gehér, György Pál
name: Nagy, Gergő
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary: 47B49. Secondary: 15A86

description: In this paper first we give a partial answer to a question of L. Molnár and W. Timmermann. Namely, we will describe those linear (not necessarily bijective) transformations on the set of self-adjoint matrices which preserve a unitarily invariant norm of the commutator. After that we will characterize those (not necessarily linear or bijective) maps on the set of self-adjoint rank-one projections acting on a two-dimensional complex Hilbert space which leave the latter quantity invariant. Finally, this result will be applied in order to obtain a description of such bijective preservers on the unitary group and on the set of density operators.
description: 16 pages, submitted to a journal
AUXIN-BINDING-PROTEIN1 (ABP1) in phytochrome-B-controlled responses
Creators: name: Jones, Alan M.
name: Effendi, Yunus
name: Scherer, Günther F. E.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: The auxin receptor ABP1 directly regulates plasma membrane activities including the number of PIN-formed (PIN) proteins and auxin efflux transport. Red light (R) mediated by phytochromes regulates the steady-state level of ABP1 and auxin-inducible growth capacity in etiolated tissues but, until now, there has been no genetic proof that ABP1 and phytochrome regulation of elongation share a common mechanism for organ elongation. In far red (FR)-enriched light, hypocotyl lengths were larger in the abp1-5 and abp1/ABP1 mutants, but not in tir1-1, a null mutant of the TRANSPORT-INHIBITOR-RESPONSE1 auxin receptor. The polar auxin transport inhibitor naphthylphthalamic acid (NPA) decreased elongation in the low R:FR light-enriched white light (WL) condition more strongly than in the high red:FR light-enriched condition WL suggesting that auxin transport is an important condition for FR-induced elongation. The addition of NPA to hypocotyls grown in R- and FR-enriched light inhibited hypocotyl gravitropism to a greater extent in both abp1 mutants and in phyB-9 and phyA-211 than the wild-type hypocotyl, arguing for decreased phytochrome action in conjunction with auxin transport in abp1 mutants. Transcription of FR-enriched light-induced genes, including several genes regulated by auxin and shade, was reduced 3-5-fold in abp1-5 compared with Col and was very low in abp1/ABP1. In the phyB-9 mutant the expression of these reporter genes was 5–15-fold lower than in Col. In tir1-1 and the phyA-211 mutants shade-induced gene expression was greatly attenuated. Thus, ABP1 directly or indirectly participates in auxin and light signalling.
Repeating Ultraluminous X-ray Bursts and Repeating Fast Radio Bursts: A Possible Association?
Creators: name: Chen, Hao-Yan
name: Gu, Wei-Min
name: Fu, Jin-Bo
name: Weng, Shan-Shan
name: Wang, Junfeng
name: Sun, Mouyuan
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Ultraluminous X-ray bursts (hereafter ULXBs) are ultraluminous X-ray flares with a fast rise ($\sim$ one minute) and a slow decay ($\sim$ an hour), which are commonly observed in extragalactic globular clusters. Most ULXBs are observational one-off bursts, whereas five flares from the same source in NGC 5128 were discovered by Irwin et al. (2016). In this Letter, we propose a neutron star (NS)-white dwarf (WD) binary model with super-Eddington accretion rates to explain the repeating behavior of the ULXB source in NGC 5128. With an eccentric orbit, the mass transfer occurs at the periastron where the WD fills its Roche lobe. The ultraluminous X-ray flares can be produced by the accretion column around the NS magnetic poles. On the other hand, some repeating fast radio bursts (hereafter FRBs) were also found in extragalactic globular clusters. Repeating ULXBs and repeating FRBs are the most violent bursts in the X-ray and radio bands, respectively. We propose a possible association between the repeating ULXBs and the repeating FRBs. Such an association is worth further investigation by follow-up observations on nearby extragalactic globular clusters.
description: 8 pages, 3 figures, accepted for publication in ApJ
title: Koncesja w publicznym prawie gospodarczym
Creators: name: Borkowski, Andrzej
Publisher: name: E-Wydawnictwo. Prawnicza i Ekonomiczna Biblioteka Cyfrowa. Wydział Prawa, Administracji i Ekonomii Uniwersytetu Wrocławskiego
Year: 2020

description: W opracowaniu podjęto próbę przedstawienia poglądów T. Bigi na rolę indywidualnego aktu administracyjnego wobec podmiotów wykonujących działalność gospodarczą. T. Bigo w swych pracach dokonywał wnikliwej analizy instytucji koncesji w kontekście oddziaływania państwa na gospodarkę w trybie pozwoleń administracyjnych. Podstawowym zadaniem opracowania jest ukazanie poglądów przedstawicieli wrocławskiej szkoły administratywistyki, odnoszących się do problematyki koncesjonowania działalności gospodarczej. Szczególną uwagę poświęcono tym badaczom zagadnienia, którzy uwzględniając poglądy T. Bigi, poddali analizie ich ewolucję na przestrzeni ostatnich dekad, formułując własne poglądy, odnoszące się do roli koncesji we współczesnej gospodarce.
Complexity factor for black holes in the framework of the Newman-Penrose formalism
Creators: name: Bargueño, P.
name: Fuenmayor, E.
name: Contreras, E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work, we introduce the {\it complexity factor} in the context of self--gravitating fluid distributions for the case of black holes by employing the Newman-Penrose formalism. In particular, by working with spherically symmetric and static AdS black holes, we show that the complexity factor can be interpreted in a natural way at the event horizon. Specifically, a thermodynamic interpretation for the aforementioned complexity factor in terms of a pressure partially supporting a Van der Waals-like equation of state is given.
title: Magnetic studies of tephra in late Holocene peats and loessic soils from SE Iceland
Creators: name: Xia, Dunsheng.
Publisher: name: University of Liverpool Repository
Year: 2023

description: Magnetic and geochemical properties of five late Holocene peat and loessial soil sections in SE Iceland have been studied. The aims were (i ) to establish a reliable tephrochronology for the sections, using geochemical analysis of tephra shards; (ii) to establish high resolution bulk sample records of mineral magnetic and geochemical properties; (iii) to test the ability of magnetic properties to correlate distal tephra layers; (iv) to assess the possible environmental significance of mineral magnetic time series and (v) to use records of loessial accumulation rates to assess human impact on the environment in SE Iceland. The work has been successful in establishing a reliable tephrostratigraphy for the studied sections. This was achieved using electron microprobe analyses (EMPA) of the geochemistry of tephra shards concentrated using a density separation technique. The results of detailed mineral magnetic measurements suggest that the main magnetic minerals in the tephras are probably ferrimagnetic minerals (e.g. magnetite) and canted anti ferromagnetic minerals (e.g. haematite), with abundant paramagnetic material also present. Cross plots of MrJMs vs. (Bo)c.l(Bo)c and Xfd% vs. XARM/SIRM indicate the main magnetic grain size in the tephras are pseudo-single domain (PSD) and multi domain (MD). The results indicate that the 'fingerprint' of both hysteresis and Curie temperature properties are insufficiently consistent within the tephra layers to provide an obviously sound basis for correlating tephra layers from one profile to the next. However, initial correlation of tephra layers was achieved, using all the measured magnetic parameters, by the use of the multivariate statistical measures of Similarity Coefficient (SC) and Euclidean Distance (ED). Tephra layer correlation was performed first time here using magnetic measurements. This demonstrates that magnetic techniques can potentially assist in the identification and correlation of distal tephra. Iceland offers a unique opportunity to study the role of humans in land degradation processes because of the late and well documented literature of settlements 1100 years ago. In this context, higher sedimentation rates in the upper part of two soils and one peat profile are interpreted as reflecting the effect of Landnam on deforestation and soil degradation.
Cross-correlation effects in the solution NMR spectra of near-equivalent spin-1/2 pairs
Creators: name: Whipham, James W.
name: Moustafa, Gamal A. I.
name: Sabba, Mohamed
name: Gong, Weidong
name: Bengs, Christian
name: Levitt, Malcolm H.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The NMR spectra of spin-1/2 pairs contains four peaks, with two inner peaks much stronger than the outer peaks in the near-equivalence regime. We have observed that the strong inner peaks have significantly different linewidths, when measurements were performed on a 13C2-labelled triyne derivative. This linewidth difference may be attributed to strong cross-correlation effects. We develop the theory of cross-correlated relaxation in the case of near-equivalent homonuclear spin-1/2 pairs, in the case of a molecule exhibiting strongly anisotropic rotational diffusion. Good agreement is found with the experimental NMR lineshapes.
description: Main text 11 pages, supplementary material 8 pages. Main text 5 figures, supplementary material 6 figures. To be published in the Journal of Chemical Physics
Versatile Land Navigation Using Inertial Sensors and Odometry: Self-calibration, In-motion Alignment and Positioning
Creators: name: Wu, Yuanxin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Inertial measurement unit (IMU) and odometer have been commonly-used sensors for autonomous land navigation in the global positioning system (GPS)-denied scenarios. This paper systematically proposes a versatile strategy for self-contained land vehicle navigation using the IMU and an odometer. Specifically, the paper proposes a self-calibration and refinement method for IMU/odometer integration that is able to overcome significant variation of the misalignment parameters, which are induced by many inevitable and adverse factors such as load changing, refueling and ambient temperature. An odometer-aided IMU in-motion alignment algorithm is also devised that enables the first-responsive functionality even when the vehicle is running freely. The versatile strategy is successfully demonstrated and verified via long-distance real tests.
Down-regulation of AUXIN RESPONSE FACTORS 6 and 8 by microRNA 167 leads to floral development defects and female sterility in tomato
Creators: name: Fei, Zhangjun
name: Liu, Ning
name: Ding, Biao
name: Van Houten, Jason
name: van der Knaap, Esther
name: Reed, Jason W.
name: Wang, Ying
name: Wu, Shan
name: Clarke, Thomas H.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: SummaryInvestigations into the role of tomato ARF6 and ARF8 reveal that they are critical components in floral and gynoecium development before anthesis.Auxin regulates the expression of diverse genes that affect plant growth and development. This regulation requires AUXIN RESPONSE FACTORS (ARFs) that bind to the promoter regions of these genes. ARF6 and ARF8 in Arabidopsis thaliana are required to promote inflorescence stem elongation and late stages of petal, stamen, and gynoecium development. All seed plants studied thus far have ARF6 and ARF8 orthologues as well as the microRNA miR167, which targets ARF6 and ARF8. Whether these genes have broadly conserved roles in flower development is not known. To address this question, the effects of down-regulation of ARF6 and ARF8 were investigated through transgenic expression of Arabidopsis MIR167a in tomato, which diverged from Arabidopsis before the radiation of dicotyledonous plants approximately 90–112 million years ago. The transgenic tomato plants overexpressing MIR167a exhibited reductions in leaf size and internode length as well as shortened petals, stamens, and styles. More significantly, the transgenic plants were female-sterile as a result of failure of wild-type pollen to germinate on the stigma surface and/or to grow through the style. RNA-Seq analysis identified many genes with significantly altered expression patterns, including those encoding products with functions in ‘transcription regulation’, ‘cell wall’ and ‘lipid metabolism’ categories. Putative orthologues of a subset of these genes were also differentially expressed in Arabidopsis arf6 arf8 mutant flowers. These results thus suggest that ARF6 and ARF8 have conserved roles in controlling growth and development of vegetative and flower organs in dicots.
Absolute continuity of self-similar measures, their projections and convolutions
Creators: name: Shmerkin, Pablo
name: Solomyak, Boris
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 28A78, 28A80, secondary 37A45, 42A38

description: We show that in many parametrized families of self-similar measures, their projections, and their convolutions, the set of parameters for which the measure fails to be absolutely continuous is very small - of co-dimension at least one in parameter space. This complements an active line of research concerning similar questions for dimension. Moreover, we establish some regularity of the density outside this small exceptional set, which applies in particular to Bernoulli convolutions; along the way, we prove some new results about the dimensions of self-similar measures and the absolute continuity of the convolution of two measures. As a concrete application, we obtain a very strong version of Marstrand's projection theorem for planar self-similar sets.
description: 33 pages, no figures
Varieties of groupoids and quasigroups generated by linear-bivariate polynomials over ring Z_n
Creators: name: Ilojide, Emmanuel
name: Jaiyeola, Temitope Gbolahan
name: Owojori, O. O.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20N02, 20NO5

description: Some varieties of groupoids and quasigroups generated by linear-bivariate polynomials $P(x,y)=a+bx+cy$ over the ring $\mathbb{Z}_n$ are studied. Necessary and sufficient conditions for such groupoids and quasigroups to obey identities which involve one, two, three (e.g. Bol-Moufang type) and four variables w.r.t. $a$, $b$ and $c$ are established. Necessary and sufficient conditions for such groupoids and quasigroups to obey some inverse properties w.r.t. $a$, $b$ and $c$ are also established. This class of groupoids and quasigroups are found to belong to some varieties of groupoids and quasigroups such as medial groupoid(quasigroup), F-quasigroup, semi automorphic inverse property groupoid(quasigroup) and automorphic inverse property groupoid(quasigroup).
description: 24 pages
$E_{\mathrm{iso}}$-$E_{\mathrm{p}}$ correlation of gamma ray bursts: calibration and cosmological applications
Creators: name: Jia, X. D.
name: Hu, J. P.
name: Yang, J.
name: Zhang, B. B.
name: Wang, F. Y.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Gamma-ray bursts (GRBs) are the most explosive phenomena and can be used to study the expansion of Universe. In this paper, we compile a long GRB sample for the $E_{\mathrm{iso}}$-$E_{\mathrm{p}}$ correlation from Swift and Fermi observations. The sample contains 221 long GRBs with redshifts from 0.03 to 8.20. From the analysis of data in different redshift intervals, we find no statistically significant evidence for the redshift evolution of this correlation. Then we calibrate the correlation in six sub-samples and use the calibrated one to constrain cosmological parameters. Employing a piece-wise approach, we study the redshift evolution of dark energy equation of state (EOS), and find that the EOS tends to be oscillating at low redshift, but consistent with $-1$ at high redshift. It hints a dynamical dark energy at $2σ$ confidence level at low redshift.
description: 14 pages, 7 figures, 3 tables, accepted for publication in MNRAS
PROBING PROBIOTICS: EXPLORING THEIR ROLE IN COSMETICS AND PERSONAL CARE INNOVATIONS
Creators: name: Vinayak A. Katekar, Manasi M.Choudhari, Ashish N. Umale, Swati P. Deshmukh
Publisher: name: Zenodo
Year: 2024

description: Probiotics are gaining popularity and commercial viability. They are characterized as "live microorganisms that, when administered in adequate amounts, confer a health benefit on the host." But far too many of the goods on the market today that are marketed as probiotics don't meet the qualifying requirements. The number of items categorized as probiotics has expanded in the cosmetics market in recent years. Probiotics have a number of potential uses in personal care products, particularly for skin, oral, and intimate care. However, appropriate regulation of labelling and marketing standards is still necessary to ensure that consumers are, in fact, buying probiotic goods. This research examines probiotics' present market, regulatory issues, and possible uses in the personal care sector. Probiotics, defined as live microorganisms conferring health benefits when administered adequately, have gained substantial popularity and commercial presence. However, concerns arise as many products marketed as probiotics do not meet these qualifying standards. In recent years, the cosmetics market has witnessed a notable increase in items labelled as probiotics, despite uncertainties regarding their efficacy and adherence to regulatory criteria. This study investigates the current state of probiotics in the market, focusing on regulatory challenges and potential applications in the personal care sector, specifically in skin, oral, and intimate care products. Probiotics offer promising opportunities due to their purported beneficial effects, yet ensuring accurate labelling and marketing practices remains paramount. Effective regulation is essential to validate the probiotic content of products and to maintain consumer confidence. Key findings underscore the necessity for rigorous standards that verify the presence and efficacy of probiotics in personal care goods. Such measures are crucial not only for consumer protection but also for fostering transparency and credibility within the industry. By addressing these regulatory issues, this research aims to contribute to a clearer understanding of probiotics' role in personal care and to advocate for policies that uphold product integrity and consumer trust in the marketplace.

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Keywords: probiotics; cosmetics; skin; personal care; intimate care
Gα modulates salt-induced cellular senescence and cell division in rice and maize
Creators: name: Urano, Daisuke
name: Colaneri, Alejandro
name: Jones, Alan M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Highlight textThis work reveals two distinct functions of Gα in NaCl stress in rice and maize: attenuation of leaf senescence caused by sodium toxicity in leaves, and cell cycle regulation by osmotic/ionic stress.The plant G-protein network, comprising Gα, Gβ, and Gγ core subunits, regulates development, senses sugar, and mediates biotic and abiotic stress responses. Here, we report G-protein signalling in the salt stress response using two crop models, rice and maize. Loss-of-function mutations in the corresponding genes encoding the Gα subunit attenuate growth inhibition and cellular senescence caused by sodium chloride (NaCl). Gα null mutations conferred reduced leaf senescence, chlorophyll degradation, and cytoplasm electrolyte leakage under NaCl stress. Sodium accumulated in both wild-type and Gα-mutant shoots to the same levels, suggesting that Gα signalling controls cell death in leaves rather than sodium exclusion in roots. Growth inhibition is probably initiated by osmotic change around root cells, because KCl and MgSO4 also suppressed seedling growth equally as well as NaCl. NaCl lowered rates of cell division and elongation in the wild-type leaf sheath to the level of the Gα-null mutants; however there was no NaCl-induced decrease in cell division in the Gα mutant, implying that the osmotic phase of salt stress suppresses cell proliferation through the inhibition of Gα-coupled signalling. These results reveal two distinct functions of Gα in NaCl stress in these grasses: attenuation of leaf senescence caused by sodium toxicity in leaves, and cell cycle regulation by osmotic/ionic stress.