cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Severity of Subjective Cognitive Complaints and Worries in Older Adults Are Associated With Cerebral Amyloid-β Load
Creators: name: Schwarz, Claudia
name: Lange, Catharina
name: Benson, Gloria S.
name: Horn, Nora
name: Wurdack, Katharina
name: Lukas, Mathias
name: Buchert, Ralph
name: Wirth, Miranka
name: Flöel, Agnes
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: subjective cognitive decline
subject: preclinical Alzheimer's disease
subject: F-18-florbetaben PET
subject: amyloid
subject: biomarkers
subject: cognitively normal
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Subjective cognitive decline (SCD) is considered an early risk stage for dementia due to Alzheimer's disease (AD) and the development of pathological brain changes, such as the aggregation of amyloid-beta (amyloid-beta) plaques. This study evaluates the association between specific features of SCD and cerebral amyloid-beta load measured by positron emission tomography (PET) with F-18-florbetaben in 40 cognitively normal older individuals. Global amyloid-beta, as well as regional amyloid-beta load for the frontal, temporal, parietal, and cingulate cortex, was quantified. Specific features of SCD, such as subjective cognitive complaints and worry, were assessed using the 39-item Everyday Cognition Scales and the 16-item Penn State Worry Questionnaire. Spearman's rank partial correlation analyses, adjusted for age and apolipoprotein E epsilon 4 status, were conducted to test the associations between specific features of SCD and cerebral amyloid-beta load. The severity of subjective cognitive complaints in everyday memory and organization was positively correlated with amyloid-beta load in the frontal cortex. In addition, the severity of subjective cognitive complaints in everyday planning was positively correlated with amyloid-beta load in the parietal cortex. Higher levels of worry were associated with higher amyloid-beta load in the frontal cortex. After correction of the PET data for partial volume effects, these associations were reduced to trend level. In conclusion, the severity of subjective cognitive complaints and the level of trait worry were positively associated with cortical amyloid-beta burden, particularly in the frontal and parietal cortex. Further studies are required to elucidate the direction of these associations in order to develop strategies to prevent amyloid deposition and cognitive decline.
Experimental study of THGEM detector with mini-rim
Creators: name: Zhang, Ai-Wu
name: Yu, Bo-Xiang
name: Xie, Yu-Guang
name: Liu, Hong-Bang
name: An, Zheng-Hua
name: Wang, Zhi-Gang
name: Cai, Xiao
name: Sun, Xi-Lei
name: Shi, Feng
name: Fang, Jian
name: Xue, Zhen
name: Lu, Qi-Wen
name: Sun, Li-Jun
name: Ge, Yong-Shuai
name: Liu, Ying-Biao
name: Hu, Tao
name: Zhou, Li
name: Lu, Jun-Guang
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The gas gain and energy resolution of single and double THGEM detectors (5{\times}5cm2 effective area) with mini-rims (rim is less than 10μm) were studied. The maximum gain can reach 5{\times}103 and 2{\times}105 for single and double THGEM respectively, while the energy resolution of 5.9 keV X-ray varied from 18% to 28% for both single and double THGEM detectors of different hole sizes and thicknesses.All the experiments were investigated in mixture of noble gases(argon,neon) and small content of other gases(iso-butane,methane) at atmospheric pressure.
description: 4pages,6figures, it has been submitted to Chinese Physics C
New many-body method using cluster expansion diagrams with tensor-optimized antisymmetrized molecular dynamics
Creators: name: Myo, Takayuki
name: Lyu, Mengjiao
name: Toki, Hiroshi
name: Horiuchi, Hisashi
name: Zhao, Qing
name: Isaka, Masahiro
name: Takemoto, Hiroki
name: Wan, Niu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a new many-body method based on the correlation functions, in which the multiple products of the correlation functions are expanded into the many-body diagrams using the cluster expansion method and every diagram is independently optimized in the total-energy variation. We apply this idea to the tensor-optimized antisymmetrized molecular dynamics (TOAMD) using the bare nucleon-nucleon interaction and show the results of the $s$-shell nuclei within the triple products of the correlation functions of tensor and central-types. We evaluate the effect of the independent optimization of the many-body diagrams on the solutions. It is found that the triple products provides the sizable effect in the present scheme, which results in the good reproduction of the total energy and the Hamiltonian components of nuclei with respect to the few-body calculations.
description: 12 pages, 13 figures
The ghost of vector fields in compact stars
Creators: name: Silva, Hector O.
name: Coates, Andrew
name: Ramazanoğlu, Fethi M.
name: Sotiriou, Thomas P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Spontaneous scalarization is a mechanism that allows a scalar field to go undetected in weak gravity environments and yet develop a nontrivial configuration in strongly gravitating systems. At the perturbative level it manifests as a tachyonic instability around spacetimes that solve Einstein's equations. The endpoint of this instability is a nontrivial scalar field configuration that can significantly modify a compact object's structure and can produce observational signatures of the scalar field's presence. Does such a mechanism exists for vector fields? Here we revisit the model that constitutes the most straightforward generalization of the original scalarization model to a vector field and perform a perturbative analysis. We show that a ghost appears as soon as the square of the naive effective mass squared becomes negative anywhere. This result poses a serious obstacle in generalizing spontaneous scalarization to vector fields.
description: 12 pages. v2: corrections to Eqs. (23)-(24), new references. v3: matches published version
Dark Matter Signature from the Sky and at Colliders
Creators: name: Zhu, Shou-hua
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this talk, we briefly review our recent investigations on the properties of dark matter (DM) particle.
description: 4 pages, talk at ICHEP2010
Innovative Diagnostic Endoscopy in Inflammatory Bowel Diseases: From High-Definition to Molecular Endoscopy
Creators: name: Bojarski, Christian
name: Waldner, Maximilian
name: Rath, Timo
name: Schürmann, Sebastian
name: Neurath, Markus F.
name: Atreya, Raja
name: Siegmund, Britta
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: high-definition endoscopy
subject: confocal laser microscopy
subject: chromoendoscopy
subject: molecular endoscopy
subject: multiphoton microscopy
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: High-definition endoscopy is one essential step in the initial diagnosis of inflammatory bowel disease (IBD) characterizing the extent and severity of inflammation, as well as discriminating ulcerative colitis (UC) from Crohn's disease (CD). Following general recommendations and national guidelines, individual risk stratification should define the appropriate surveillance strategy, biopsy protocol and frequency of endoscopies. Beside high-definition videoendoscopy the application of dyes applied via a spraying catheter is of additional diagnostic value with a higher detection rate of intraepithelial neoplasia (IEN). Virtual chromoendoscopy techniques (NBI, FICE, I-scan, BLI) should not be recommended as a single surveillance strategy in IBD, although newer data suggest a higher comparability to dye-based chromoendoscopy than previously assumed. First results of oral methylene blue formulation are promising for improving the acceptance rate of classical chromoendoscopy. Confocal laser endomicroscopy (CLE) is still an experimental but highly innovative endoscopic procedure with the potential to contribute to the detection of dysplastic lesions. Molecular endoscopy in IBD has taken application of CLE to a higher level and allows topical application of labeled probes, mainly antibodies, against specific target structures expressed in the tissue to predict response or failure to biological therapies. First pre-clinical and in vivo data from label-free multiphoton microscopy (MPM) are now available to characterize mucosal and submucosal inflammation on endoscopy in more detail. These new techniques now have opened the door to individualized and highly specific molecular imaging in IBD in the future and pave the path to personalized medicine approaches. The quality of evidence was stated according to the Oxford Center of evidence-based medicine (March 2009). For this review a Medline search up to January 2021 was performed using the words "inflammatory bowel disease, " "ulcerative colitis, " "crohn's disease, " "chromoendoscopy, " "high-definition endoscopy, " "confocal laser endomicroscopy, " "confocal laser microscopy, " "molecular imaging, " "multiphoton microscopy. "
Sociocultural Challenges in the Implementation of COVID-19 Public Health Measures: Results From a Qualitative Study in Punjab, Pakistan
Creators: name: Zakar, Rubeena
name: Yousaf, Farhan
name: Zakar, Muhammad Zakria
name: Fischer, Florian
Publisher: name: Charité - Universitätsmedizin Berlin
Year: 2021
Subjects: subject: COVID-19
subject: corona
subject: SARS-CoV-2
subject: public health
subject: Pakistan
subject: social behavior
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::610 Medizin und Gesundheit

description: Informed public health measures are crucial to curb the COVID-19 pandemic. The sociocultural context is important to understand the success or failure of implementing public health measures. This study explores the social and behavioral response to COVID-19 and unveils challenges in the implementation of related public health measures in Pakistan. Within this qualitative study, we conducted 34 telephonic/online in-depth interviews with youths, adults, elderly people, and healthcare professionals in the Punjab province of Pakistan. Framework analysis was used for data analysis. People's poor understanding about COVID-19 and the need for preventive measures were the major challenge in implementing public health preventive strategies. Study participants reported that the lockdown strategy increased poverty and unemployment. People's poor living conditions and living environment compelled them not to follow social distancing and restricting themselves to home. Additionally, an underdeveloped healthcare system was one of the major challenges for Pakistan. The culture of denial in Pakistan related to the epidemiology of COVID-19 was an important challenge within the implementation of public health preventive measures. It is extremely important that public health experts and social scientists work together to understand the contextual sociocultural factors which shape behaviors associated with the spread of a pandemic.
The Mass-Radius Relation for Star-Forming Galaxies at z ~ 1.5-3.0
Creators: name: Nagy, Sarah R.
name: Law, David R.
name: Shapley, Alice E.
name: Steidel, Charles C.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present early results from a Hubble Space Telescope (HST) WFC3/IR imaging survey of star-forming galaxies in the redshift range 1.5 < z < 3.0. When complete, this survey will consist of 42 orbits of F160W imaging distributed amongst 10 survey fields on the line of sight to bright background QSOs, covering 65 arcmin^2 to a depth of 27.9 AB with a PSF FWHM of 0.18". In this contribution, we use a subset of these fields to explore the evolution of the galactic stellar mass-radius relation for a magnitude-limited sample of 102 spectroscopically-confirmed star forming galaxies ( ~ 30 Msun/yr) with stellar mass M* ~ 10^{10} Msun. Although the light profile of these galaxies often has an irregular, multi-component morphology, it is typically possible to describe the brightest component with a Sersic profile of index n ~ 1. The circularized half-light radius r_e of the brightest component is on average = 1.66 \pm 0.79 kpc (i.e., ~ 50-70% the size of local late-type galaxies with similar stellar mass), consistent with recent theoretical models that incorporate strong feedback from star forming regions. The mean half-light radius increases with stellar mass and, at fixed stellar mass, evolves with cosmic time as ~ (1+z)^{-1.42}, suggesting that high redshift star forming galaxies may evolve onto the local stellar mass-radius relation by redshift z ~ 1.
description: Accepted for publication in ApJ Letters. 3 figures. Revision 1: Fixed title
Sharp Valence Change as Origin of Drastic Change of Fermi Surface and Transport Anomalies in CeRhIn5 under Pressure
Creators: name: Watanabe, Shinji
name: Miyake, Kazumasa
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The drastic changes of Fermi surfaces as well as transport anomalies near P=Pc~2.35 GPa in CeRhIn5 are explained theoretically from the viewpoint of sharp valence change of Ce. It is pointed out that the key mechanism is the interplay of magnetic order and Ce-valence fluctuations. It is shown that the antiferromagnetic state with "small" Fermi surfaces changes to the paramagnetic state with "large" Fermi surfaces with huge enhancement of effective mass of electrons with keeping finite c-f hybridization. This naturally explains the de Haas-van Alphen measurement and also the transport anomalies of T-linear resistivity emerging simultaneously with the residual resistivity peak at P=Pc in CeRhIn5.
description: 4 pages, 2 figures, to appear in Journal of Physics: Conference Series
Squeezed metallic droplet with tunable Kubo gap and charge injection in transition metal dichalcogenides
Creators: name: Yuan, Jiaren
name: Chen, Yuanping
name: Xie, Yuee
name: Zhang, Xiaoyu
name: Rao, Dewei
name: Guo, Yandong
name: Yan, Xiaohong
name: Feng, Yuanping
name: Cai, Yongqing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Shrinking the size of a bulk metal into nanoscale leads to the discreteness of electronic energy levels, the so-called Kubo gap. Renormalization of the electronic properties with a tunable and size-dependent Kubo gap renders fascinating photon emission and electron tunneling. In contrast with usual three-dimensional (3D) metal clusters, here we demonstrate that Kubo gap can be achieved with a two-dimensional (2D) metallic transition metal dichalcogenide (i.e., 1T'-phase MoTe2) nanocluster embedded in a semiconducting polymorph (i.e., 1H-phase MoTe2). Such a 1T'-1H MoTe2 nanodomain resembles a 3D metallic droplet squeezed in a 2D space which shows a strong polarization catastrophe while simultaneously maintains its bond integrity which is absent in traditional delta-gapped 3D clusters. The weak screening of the host 2D MoTe2 leads to photon emission of such pseudo-metallic systems and a ballistic injection of carriers in the 1T'-1H-1T' homojunctions which may find applications in sensors and 2D reconfigurable devices.
Nonlinear continuous variable example from Overcoming the pitfalls of categorizing continuous variables in ecology, evolution, and behavior
Creators: name: Beltran, Roxanne S.
name: Tarwater, Corey
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310399
subject: Ecology not elsewhere classified

description: Category vs Continuous Supplement 2024_07_29.docx
Substitutional Doped GeSe: Tunable Oxidative States with Strain Engineering
Creators: name: Shu, Zheng
name: Cai, Yongqing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Layered chalcogenide materials have a wealth of nanoelectronics applications like resistive switching and energy-harvesting such as photocatalyst owing to rich electronic, orbital, and lattice excitations. In this work, we explore monochalcogenide germanium selenide GeSe with respect to substitutional doping with 13 metallic cations by using first-principles calculations. Typical dopants including s-shell (alkali elements Li and Na), p-shell (Al, Pb and Bi), 3d (Fe, Cu, Co and Ni), 4d (Pd and Ag) and 5d (Au and Pt) elements are systematically examined. Amongst all the cationic dopants, Al with the highest oxidation states, implying a high mobility driven by electric field, and Al-doped GeSe may be a promising candidate for novel resistive switching devices. We show that there exist many localized induced states in the band gap of GeSe upon doping Fe, Co, or Ni, while for Cu, Ag, and Au cases there is no such states in the gap. The Ag and Cu are + 0.27 and + 0.35 charged respectively and the positive charges are beneficial for field-driven motion in GeSe. In contrast, Au is slightly negatively charged renders Au-doped GeSe a promising photocatalyst and enhanced surface plasmon. Moreover, we explore the coexistence of dopant and strain in GeSe and find dynamical adjustments of localized states in GeSe with levels successive shifting upward/downward with strain. This induces dynamic oxidative states of the dopants under strain which should be quite popular in composites where motion of metal adatoms causes significant deformation.
Impact of Physical Activity on Resilience among Teenage Girls during the COVID-19 Pandemic a Mediation by Self-Esteem.
Creators: name: Chaharbaghi, Zahra
name: Beigom Hosseini, Fatemeh
name: Baniasadi, Tayebeh
name: Moradi, Lida
name: Dana, Amir
Publisher: name: figshare
Year: 2023
Subjects: Sport and exercise psychology

description: Background: A significant factor associated with well-being and health is to find a method which can increase resilience during the pandemics. The present research aimed to examine the impact of physical activity level on resilience of teenage girls during the COVID-19 pandemic with an emphasis on self-esteem as a mediator. Methods: The present study utilized a descriptive-correlation approach. The statistical sample included 384 teenage females from Golestan, Iran, in 2020. We employed standard surveys for collecting the data. Statistical methods included Kolmogorov- Smirnov test, Spearman correlation test, and structural relationships through Lisrel. Results: Physical activity was found to affect resilience (β=0.396, T=6.284) and self-esteem (β=0.628, T=11.594). Furthermore, self-esteem significantly affected resilience (β=0.530, T=9.509). Finally, self-esteem significantly mediated the correlation between physical activity and resilience (Z=6.780, p <0.001). Conclusions: Physical activity could be considered as an important factor in coping with severe condition during the COVID-19 pandemic. Therefore, in a pandemic situation, by increasing physical activity, better conditions can be created for children and adolescents, especially girls, to ensure their resilience.
Structural and functional characterization of the Legionella pneumophila effector CegC2
Creators: name: Perri, Kayla
Publisher: name: Purdue University Graduate School
Year: 2025
Subjects: classificationCode: 310701
subject: Bacteriology
classificationCode: 310702
subject: Infectious agents

description: The human pathogen Legionella pneumophila is the etiological agent of a severe form of pneumonia known as Legionnaires’ disease. Successful infection is achieved through a specialized type IVB secretion system that injects over 330 proteins, called effectors, into the host cell cytosol. These effectors modulate various host cell processes, such as vesicle trafficking, lipid metabolism, and ubiquitination. However, the biological functions of more than two-thirds of effectors have not been determined. In this study, we characterized the hypothetical effector Lpg0126 (CegC2). We found that CegC2 is a multidomain protein. The N-terminal region of CegC2 harbors a cysteine protease domain that is critical for its toxic effect on mammalian cells. We determined the crystal structure of this region at a final resolution of 3.18 Å. According to the structure, CegC2 forms a dimer, and the cysteine protease active site is located at the dimer interface. Interestingly, we observed copper bound near the active site in our structure. Additionally, we found that CegC2 binds to the lipid PI3P on its C-terminal end and localizes to the Legionella-containing vacuole (LCV) during infection. Taken together, our results provide insights into the functional role of CegC2 during infection, and we have identified a novel copper-binding phenotype that has not been observed with other effectors.
Vergleichsverbot? Bevölkerungsstatistiken und die Frage der Vergleichbarkeit in den deutschen Kolonien (1885–1914)
Creators: name: Renard, Léa
Publisher: name: Freie Universität Berlin
Year: 2021
Subjects: subject: Klassifikation
subject: Kolonialismus
subject: Zensus
subject: Territorialität
subject: Deutsches Kaiserreich
subject: 300 Sozialwissenschaften::300 Sozialwissenschaften, Soziologie::301 Soziologie, Anthropologie

description: Der Beitrag untersucht das Verhältnis von statistischen Klassifikationen und Vergleichen in deutschen Kolonialstatistiken zwischen 1885 und 1914 und geht der Frage nach, welche Bedeutung und welche Ausprägungen dem Vergleich in Bezug auf Raum und Bevölkerung in kolonialen Statistiken zukamen. Ziel ist, den Blick für Methoden und Kategorien der statistischen Praxis im imperialen Kontext zu schärfen. Die Ergebnisse zeigen, dass der statistischen Beobachtung der Kolonien eine territoriale Grundunterscheidung zwischen Metropole und Kolonien zugrunde lag, die in unterschiedlichen Methoden mündete. Diese territoriale und methodologische Spaltung war mit einer grundsätzlichen Unvergleichbarkeit zwischen kolonisierter Bevölkerung und Kolonisierenden gekoppelt, so die These des Beitrags.
Large-deviation principles, stochastic effective actions, path entropies, and the structure and meaning of thermodynamic descriptions
Creators: name: Smith, Eric
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The meaning of thermodynamic descriptions is found in large-deviations scaling of the fluctuations probabilities. The primary large-deviations rate function is the entropy, which is the basis for both fluctuation theorems and for characterizing the thermodynamic interactions of systems. Freidlin-Wentzell theory provides a general formulation of large-deviations scaling for non-equilibrium stochastic processes, through a representation in terms of a Hamiltonian dynamical system. A number of related methods now exist to construct the Freidlin-Wentzell Hamiltonian for many kinds of stochastic processes; one method due to Doi and Peliti, appropriate to integer counting statistics, is widely used in reaction-diffusion theory. Using these tools together with a path-entropy method due to Jaynes, we show how to construct entropy functions that both express large-deviations scaling of fluctuations, and describe system-environment interactions, for discrete stochastic processes either at or away from equilibrium. A collection of variational methods familiar within quantum field theory, but less commonly applied to the Doi-Peliti construction, is used to define a "stochastic effective action", which is the large-deviations rate function for arbitrary non-equilibrium paths. We show how common principles of entropy maximization, applied to different ensembles of states or of histories, lead to different entropy functions and different sets of thermodynamic state variables. Yet the relations of among all these levels of description may be constructed explicitly and understood in terms of information conditions. The example systems considered introduce methods that may be used to systematically construct descriptions with all the features familiar from equilibrium thermodynamics, for a much wider range of systems describable by stochastic processes.
Perturbed Power-law parameters from WMAP7
Creators: name: Joy, Minu
name: Souradeep, Tarun
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a perturbative approach for studying inflation models with soft departures from scale free spectra of the power law model. In the perturbed power law (PPL) approach one obtains at the leading order both the scalar and tensor power spectra with the running of their spectral indices, in contrast to the widely used slow roll expansion. The PPL spectrum is confronted data and we show that the PPL parameters are well estimated from WMAP-7 data.
Relação entre a disponibilidade de ferro (Fe2+) e a capacidade de sequestração de CO2 pela espécie Tetraselmis chuii
Creators: name: Heleno, Diogo Rosa
name: Fernandes, Beatriz Almeida
name: Couto, Joana Espírito Santo
name: Fernandes, Rui P.
name: Mouga, Teresa
Publisher: name: Revista Captar: Ciência e Ambiente para Todos
Year: 2021

description: O ferro provou ser um elemento fulcral para o balanço biogeoquímico da produtividade primária da zona eufótica dos oceanos. Estudos de “fertilização” em ferro que procuraram estabelecer esta relação foram conduzidos preferencialmente em meso- e macro- escala, embora experiências de pequena escala reflitam com rigor os processos que ocorrem in situ. Neste sentido, foi estudada a resposta da microalga Tetraselmis chuii a diferentes concentrações de Ferro (Fe2+), cultivando-a em três grupos experimentais: controlo (meio F/2), II (F/2 + 2x Fe2+) e III (F/2 + 4x Fe2+). Foi calculado o peso seco permitiu a determinação da biomassa algal (ma, gL-1) e da massa de carbono inorgânico sequestrado (mCi, gL-1). Comparativamente ao controlo (ma=(1,7±0,58), mCi=0,85), o Grupo II (ma=(2,6±0,58), mCi=1,3) e particularmente o III (ma=(4,0±1,0), mCi=2,0) verificou-se uma diferença estatisticamente significativa na produção de biomassa e na sequestração de carbono. O presente estudo permitiu demonstrar a existência de um maior crescimento algal em culturas expostas a uma maior disponibilidade de Fe, concluindo que a sequestração de CO2 é potenciada usando concentrações crescentes daquele metal. Investigações subsequentes deverão procurar compreender a influência da adubação em ferro na proliferação de outras espécies, nomeadamente no que se refere aos harmful algal blooms (HBAs).
description: Revista Captar: Ciência e Ambiente para Todos, Avanço de publicação
Echinococcosis Diagnosed Sonographically
Creators: name: Chu, Robert
Publisher: name: EURORAD
Year: 2014
Subjects: subject: Abdomen
subject: Colon
subject: Liver
subject: CT
subject: Ultrasound
subject: Ultrasound-Colour Doppler
subject: Diagnostic procedure
subject: Cysts
subject: Infection

description: Clinical History Image Findings Discussion Find Diagnosis Differential Diagnosis
description: male, 35 years
description: Clinical History: 35-year-old Middle Eastern man with right upper quadrant mass and pain. Elevated GGT and ALP. Final Diagnosis: Hydatid cysts
The future treatment for type 1 diabetes: Pig islet- or stem cell-derived β cells?
Creators: name: Naqvi, Raza
name: Naqvi, Afsar
name: Singh, Amar
name: Priyadarshini, Medha
name: Balamurugan, Appakalai N
name: Layden, Brian
Publisher: name: University of Illinois at Chicago
Year: 2023
Subjects: Uncategorized

description: Replacement of β cells is only a curative approach for type 1 diabetes (T1D) patients to avoid the threat of iatrogenic hypoglycemia. In this pursuit, islet allotransplantation under Edmonton's protocol emerged as a medical miracle to attain hypoglycemia-free insulin independence in T1D. Shortage of allo-islet donors and post-transplantation (post-tx) islet loss are still unmet hurdles for the widespread application of this therapeutic regimen. The long-term survival and effective insulin independence in preclinical studies have strongly suggested pig islets to cure overt hyperglycemia. Importantly, CRISPR-Cas9 technology is pursuing to develop "humanized" pig islets that could overcome the lifelong immunosuppression drug regimen. Lately, induced pluripotent stem cell (iPSC)-derived β cell approaches are also gaining momentum and may hold promise to yield a significant supply of insulin-producing cells. Theoretically, personalized β cells derived from a patient's iPSCs is one exciting approach, but β cell-specific immunity in T1D recipients would still be a challenge. In this context, encapsulation studies on both pig islet as well as iPSC-β cells were found promising and rendered long-term survival in mice. Oxygen tension and blood vessel growth within the capsules are a few of the hurdles that need to be addressed. In conclusion, challenges associated with both procedures, xenotransplantation (of pig-derived islets) and stem cell transplantation, are required to be cautiously resolved before their clinical application.
Activation of Phosphorene-like Two-dimensional GeSe for Efficient Electrocatalytic Nitrogen Reduction via States Filtering of Ru
Creators: name: Shu, Zheng
name: Cai, Yongqing
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nitrogen reduction reaction (NRR) which converts nitrogen (N2) to ammonia (NH3) normally requires harsh conditions to break the bound nitrogen bond. Herein, via first-principles calculation we reveal that a superior NRR catalytic activity could be obtained through anchoring atomic catalyst above a phosphorene-like puckering surface of germanium selenide (GeSe). Through examining the single- and double- atoms (B, Fe, W, Mo and Ru) decorated on GeSe, we find that its rippled structure allows an intimate contact between the deposited species and the GeSe which significantly promotes the states hybridization. Amongst the various atomic catalyst, we predict that the Ru dimer decorated GeSe monolayer (Ru2@GeSe) has superior catalytic activity for the N2 fixation and reduction. Through examining the three NRR pathways (distal, alternating and enzymatic), the distal and enzymatic pathway is both the thermodynamically favorable with the maximum Gibbs free energy change (ΔGMAX) of 0.25 and 0.26 eV, respectively. Such a superior activity could be attributed to the filtered states of GeSe by Ru dimer which leads to the effective activation of the adsorbed N2 bond. As an efficient near-infrared absorber of GeSe, the Ru mediated hybridization of GeSe-Ru-N2 complex enables an in-gap state which further broadens the absorbing window, rendering for a broadband solar absorption and possible photocatalysis.
Corrosion mechanism of Mg20Zn alloy protected by chitosan coatings
Creators: name: Kozina, Iryna
name: Starowicz, Maria
name: Fedel, Michele
name: Deflorian, Flavio
name: Krawiec, Halina
Publisher: name: Zenodo
Year: 2021
Subjects: MgZn alloy, chitosan coatings, biodegradable, corrosion resistance

description: In recent years magnesium and its alloys became more and more attractive as an implant material for orthopedics. Comparing to existing
 implant materials. Magnesium exhibits mechanical properties close to human bones (elasticity modulus, density) and it is biodegradable, nontoxic,
 non-allergic. These properties make magnesium and its alloys extremely attractive, at first, for biomedical studies and as a result
 promising material for orthopedic applications.
 Magnesium is very reactive metal especially in aggressive environments rich on Cl- ions. To protect magnesium alloys against corrosion
 chitosan based biodegradable coatings can be used. In this study, chitosan coatings modified by addition of titanium dioxide and
 hydroxyapatite nanoparticles were deposited on Mg20Zn alloy by using spin-coating technique. To investigate corrosion behaviour the
 following electrochemical methods have been applied: electrochemical impedance spectroscopy (EIS) and Linear Sweep Voltamperometry
 (LSV). The corrosion tests have been performed in the Hank’s solution (temperature 37°C and pH 7.2). The morphology of the chitosan-based
 coatings before and after corrosion tests has been investigated by means of FE-SEM (Field Emission Scanning Electron Microscopes). The
 structure of the chitosan coatings has been investigated by using a Fourier Transform Infrared (FTIR) Spectrometer.
 Hydroxyapatite (HA) particles were homogeneously distributed in the chitosan matrix, while titanium dioxide nanoparticles formed an
 agglomerates located preferentially on the intermetallic phase Mg51Zn20. The exposition of the specimens for 24 hours in the Hank's solution
 has revealed the formation of some cracks in the coatings. The electrochemical measurements have proved better corrosion resistance of
 Mg20Zn alloy covered by chitosan coatings containing the TiO2 nanoparticles.
 Acknowledgements
 The authors would like to thanks to European Commission for financial support in the frame of project H2020-MSCA-ITN-2017, grant
 agreement no. 764977 –mCBEEs.
Overcoming obstacles in biomechanical modelling : methods for dealing with discretization, data fusion, and detail
Creators: name: Sánchez, C. Antonio
Publisher: name: University of British Columbia
Year: 2018

description: Biomechanical modelling has the potential to start the next revolution in medicine, just as imaging has done in decades past. Current technology can now capture extremely detailed information about the structure of the human body. The next step is to consider function. Unfortunately, though there have been recent advances in creating useful anatomical models, there are still significant barriers preventing their widespread use. In this work, we aim to address some of the major challenges in biomechanical model construction. We examine issues of discretization: methods for representing complex soft tissue structures; issues related to consolidation of data: how to register information from multiple sources, particularly when some aspects are unreliable; and issues of detail: how to incorporate information necessary for reproducing function while balancing computational efficiency. To tackle discretization, we develop a novel hex-dominant meshing approach that allows for quality control. Our pattern-base tetrahedral recombination algorithm is extremely simple, and has tight computational bounds. We also compare a set of non-traditional alternatives in the context of muscle simulation to determine when each might be appropriate for a given application. For the fusion of data, we introduce a dynamics-driven registration technique which is robust to noise and unreliable information. It allows us to encode both physical and statistical priors, which we show can reduce error compared to the existing methods. We apply this to image registration for prostate interventions, where only parts of the anatomy are visible in images, as well as in creating a subject-specific model of the arm, where we need to adjust for both changes in shape and in pose. Finally, we examine the importance of and methods to include architectural details in a model, such as muscle fibre distribution, the stiffness of thin tendinous structures, and missing surface information. We examine the simulation of muscle contractions in the forearm, force transmission in the masseter, and dynamic motion in the upper airway to support swallowing and speech simulations. By overcoming some of these obstacles in biomechanical modelling, we hope to make it more accessible and practical for both research and clinical use.
Psychosocial Distress among Teenage Girls within the Coronavirus Outbreak The Role of Physical Activity and Sedentary Time.
Creators: name: Dana, Amir
name: Abdi, Kamelia
name: Salehian, Mirhamid
name: Mokari Saei, Sima
Publisher: name: figshare
Year: 2023
Subjects: Sport and exercise psychology

description: Background: The effects of the coronavirus outbreak on the psychological and physical wellbeing of teenage girls is not well understood. Herein, one of the important mental health-related variables is introduced to be psychosocial distress (PSD). The current research aimed to explore the status of PSD in teenage girls during the coronavirus outbreak considering the impact of physical activity (PA) and sedentary time (ST). Methods: This research utilized a descriptive-correlation method. We selected 384 teenage girls (mean age 16.93±0.72 years) in Iran, in 2020, using a convenience sampling procedure. The participants were healthy and without any physical or mental disabilities. They completed the standard questionnaires including the COVID-19-Related Psychological Distress Scale, Physical Activity Behavior in Leisure-Time Scale, and Adolescent Sedentary Activity Questionnaire. Spearman correlation test and structural equation modelling were utilized for data analysis. Results: Our findings revealed that the psychosocial status of adolescent girls during the coronavirus outbreak was 41.50 out of 70. The subjects who were more physically active had lower levels of PSD (r=-0.627, P<0.001, whereas those with higher ST reported higher scores in PSD status (r=0.481, P<0.001). Conclusions: The results of the current research demonstrate that PSD and PA are significant challenges threatening the health of teenage girls during the coronavirus outbreak. Accordingly, it is essential to adopt appropriate procedures to enhance PA and reduce ST of teenage girls.
Link prediction in complex networks: a local na\"ıve Bayes model
Creators: name: Liu, Zhen
name: Zhang, Qian-Ming
name: Lü, Linyuan
name: Zhou, Tao
Publisher: name: arXiv
Year: 2011
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Common-neighbor-based method is simple yet effective to predict missing links, which assume that two nodes are more likely to be connected if they have more common neighbors. In such method, each common neighbor of two nodes contributes equally to the connection likelihood. In this Letter, we argue that different common neighbors may play different roles and thus lead to different contributions, and propose a local na\"ıve Bayes model accordingly. Extensive experiments were carried out on eight real networks. Compared with the common-neighbor-based methods, the present method can provide more accurate predictions. Finally, we gave a detailed case study on the US air transportation network.
description: 6 pages, 2 figures, 2 tables
Antimicrobial p-terphenyl derivatives from the deep-sea cold seep-derived fungus Aspergillus candidus
Creators: name: Liu, Yi-Yi
name: Shi, Jing-Ya
name: Liang, Qi-Ran
name: Chen, Guang-Ying
name: Chen, Hai-Xin
name: Han, Zhuang
name: Nong, Xu-Hua
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Plant Biology
subject: Virology

description: Four new p-terphenyl derivatives named phenylcandilides C-F, together with nine known analogues, were isolated from the deep-sea cold-seep-derived fungus Aspergillus candidus HNNU0546. Compounds 10 and 12 exhibited antibacterial activity against Staphylococcus aureus with MIC values of 21.6 and 23.6 µM, respectively. Compound 5 showed antifungal activity with an EC50 value of 3.0 µM against phytopathogenic fungus Alternaria sp., while compound 6 exhibited inhibitory activity against Curvularia australiensis and Alternaria sp. with the same EC50 values of 3.0 µM, respectively.
Chenophila Kethley 1970
Creators: name: Skoracki, Maciej
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Syringophilidae
Chenophila

description: Genus: Chenophila Kethley, 1970
 Chenophila Kethley, 1970: 37.
 Type species: Chenophila branta Kethley, 1970 by original designation.
 Diagnosis. FEMALE. Medium-sized quill mites (length 645–820). Gnathosoma. Hypostomal apex with pair of small protuberances. Two pairs of hypostomal lips present. Lateral hypostomal teeth absent. Peritremes M-shaped, with clearly visible chambers in each branch. Movable cheliceral digit dentate and with 1–3 teeth. Stylophore rounded posteriorly. Idiosoma. Dorsal setae beaded. Propodonotal shield entire, without pocket-like structures, bearing bases of setae vi, ve, si, se and c1. Six pairs of propodonotal setae present arranged 2–1–1–2. Hysteronotal shield fused to pygidial shield. Setae d1, d2, e2 medium-sized, setae f1, h1 and f2 short, h2 long. Genital and pseudanal series with 2 pairs of setae, each. Aggenital series with 3 pairs of setae. Legs. Leg I thicker than II–IV. Apodemes I divergent, not fused to apodemes II, both apodemes different in size and shape. Antaxial and paraxial members of claw pair subequal in size and shape, basal angles absent. Legs with full complement of setae.
MALE. Unknown.
 Host range. Mites of this genus are associated with anseriform birds (Anseriformes) of the family Anatidae.
 Habitat. Quills of covert feathers.
 Species included. At present, only 2 named species are known. One of them, Chenophila branta is known from the Nearctic region, the second, Ch. kanduli from the Palaearctic region.
description: Published as part of Skoracki, Maciej, 2011, Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840, pp. 1-414 in Zootaxa 2840 (1) on page 267, DOI: 10.11646/zootaxa.2840.1.1, http://zenodo.org/record/5289205
Unitary Scattering Protected by Pseudo-Hermiticity
Creators: name: Jin, L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Hermitian systems possess unitary scattering; however, the Hermiticity is unnecessary for a unitary scattering although the scattering under the influence of non-Hermiticity is mostly non-unitary. Here we prove that the unitary scattering is protected by certain type of pseudo-Hermiticity and unaffected by the degree of non-Hermiticity. The energy conservation is violated in the scattering process and recovers after scattering. The subsystem of the pseudo-Hermitian scattering center including only the connection sites is Hermitian. These findings provide fundamental insights on the unitary scattering, pseudo-Hermiticity, and energy conservation; and are promising for the light propagation, mesoscopic electron transport, and quantum interference in the non-Hermitian systems.
description: 8 pages, 3 figures
Investigation the Association of Internet Addiction with Mental Health and Physical Activity in Teenage Girls The Mediating Role of Parental Attitude
Creators: name: Baniasadi, Tayebeh
name: Ranjbari, Sheida
name: Abedini, Ali
name: Dana, Amir
name: Ghorbani, Saeed
Publisher: name: figshare
Year: 2023
Subjects: Sport and exercise psychology

description: Internet addiction is nowadays believed to be the most prevalent harm that currently affects families, especially teenagers and young adults. In the current research, we aimed to further delve into it by examining the association of Internet addiction with mental health and physical activity in teenage girls, considering the mediating role of parental attitude toward Internet use. Methods: Herein, 459 girls attending state schools of Tehran, Iran in 2022 were recruited utilizing convenience sampling method. The mean age of these girls was 12.21±1.28 years old. Standard instruments were used for assessing physical activity, mental health, and parental attitude toward Internet use. Pearson correlation test and structural equation modelling were also utilized for data analysis. Results: The present study revealed that on average, teenage girls had low levels of physical activity (1.97±1.54). In addition, they were found to use a relatively high amount of the Internet (2.18±1.76). Moreover, Internet addition was significantly and directly associated with mental health (depression, T=5.769; anxiety, T=3.332; stress, T=4.529). This issue was also significantly and indirectly associated with physical activity (T=-6.482). Finally, parental attitude had a significant mediating role in the association of Internet addition with mental health and physical activity (both P<0.001).
Creagonycha Kethley 1970
Creators: name: Skoracki, Maciej
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Trombidiformes
Syringophilidae
Creagonycha

description: Genus: Creagonycha Kethley, 1970
 Creagonycha Kethley, 1970: 34.
 Type species: Creagonycha lara Kethley, 1970 by original designation.
 Diagnosis. FEMALE. Medium to large-sized mites (length 750–1120). Gnathosoma: Hypostomal apex smooth. Two pairs of hypostomal lips present. Lateral hypostomal teeth absent. Peritremes M-shaped, with clearly visible chambers in each branch. Movable cheliceral digit harpoon-like, each with 2 minute teeth. Stylophore rounded or constricted posteriorly. Idiosoma. All idiosomal setae smooth. Six pairs of propodonotal setae present arranged 3– 2–1. Propodonotal shield entire, without pocket-like structures, bearing bases of setae vi, ve, si and c1. Hysteronotal shield absent. Setae d1, d2, e2, h1, h2 and f2 long, setae f1 short. Pygidial shield present. Two pairs of pseudanal and 2 pairs of genital setae present. Aggenital series with 3 pairs of setae. Legs. Legs I–IV subequal in thickness and with full complement of setae. Antaxial and paraxial members of claw pair subequal in size and shape, strongly recurved. Apodemes I divergent, fusion to apodemes II indiscernible, both apodemes similar in shape.
 MALE. Characteristics as in females except: total body length 800–860; movable cheliceral digit edentate; stylophore rounded or slightly constricted posteriorly; hysteronotal shield present or absent; setae d2 long or short, d1, e2, f2 short, h2 long.
 Host range. This genus is associated with charadriiform birds (Charadriiformes) of the families Scolopacidae and Laridae (Table 16).
 Habitat. Quills of secondaries and coverts.
 Species included. At present only 3 species were described from the Nearctic (1 species) and Palaearctic (2 species) regions. The Palaearctic fauna includes Creagonycha sternae and C. totani.
description: Published as part of Skoracki, Maciej, 2011, Quill mites (Acari: Syringophilidae) of the Palaearctic region 2840, pp. 1-414 in Zootaxa 2840 (1) on pages 268-270, DOI: 10.11646/zootaxa.2840.1.1, http://zenodo.org/record/5289205