cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: La patrimonialización del territorio y las violaciones a los derechos humanos en México
title: El caso de Chinkultic, Chiapas
titleType: AlternativeTitle
Creators: name: Frausto Cárdenas, Fátima Lucero
Publisher: name: Centro Interdisciplinario de Estudios Latinoamericanos
Year: 2022
Subjects: subject: derechos humanos
subject: derechos culturales
subject: patrimonialización
subject: pueblos indígenas
subject: territorio
subject: turismo
subject: Human rights
subject: cultural rights
subject: patrimonialization
subject: indigenous people
subject: territory
subject: tourism
subject: ddc:300
subject: ddc:980

description: El artículo discute el caso de la masacre de Chinkultic Chiapas ocurrida en el año 2008, con la intención de identificar los factores implicados en el conflicto entre elementos policiales del Estado y un grupo de campesinos indígenas, por la gestión del patrimonio arqueológico ubicado en el Parque Nacional Lagunas de Montebello, suceso que implicó el asesinato de 6 personas y 17 lesionados. El argumento a la violación de los derechos culturales en México está vinculado con la represión excesiva a las protestas sociales por parte del Estado, que protege otros intereses sobre el territorio como la privatización o la concesión de áreas para el uso turístico, más que la protección ambiental o patrimonial. El caso de Chinkultic muestra la inexistente protección a los derechos humanos en México, aunada a los altos niveles de impunidad, desigualdad y violencia.
description:  Heritage processes of territory and human rights violations in Mexico : the case of Chinkultic, Chiapas
 The article discusses the case of the massacre in Chinkultic, Chiapas in 2008, with the intention to identify the factors involved in the conflict between state police elements and a group of indigenous farmers over the management of the archaeological heritage located in the Lagunas of Montebello National Park; an event that involved the murder of 6 people and 17 injured. The argument for the violation of cultural rights in Mexico is linked to the excessive repression of social protests by the state, which protects other interests in the territory, such as privatization or the granting of areas for tourist use, rather than environmental or heritage protection. The case of Chinkultic shows the lack of human rights protection in Mexico, coupled with high levels of impunity, inequality and violence.
THE ORIGIN OF DISTANCE EDUCATION AND ITS PLACE IN HIGHER EDUCATION
Creators: name: Mirzoyeva, S.S.
Publisher: name: Zenodo
Year: 2025

description: This article discusses the history of distance education, the need for and attention to distance education in our Republic, and the reasons for using distance education in the learning process. The article discusses the reform of the educational process in the education system, the development of teaching methods based on new information technologies, and their widespread implementation in higher education.
title: Electronic structure of In₂O₃ and Sn-doped In₂O₃ by hard x-ray photoemission spectroscopy
Creators: name: Körber, C.
name: Krishnakumar, V.
name: Klein, Andreas
name: Panaccione, G.
name: Torelli, P.
name: Walsh, A.
name: Silva, J. L. F. Da
name: Wei, S.-H.
name: Egdell, R. G.
name: Payne, D. J.
Publisher: name: American Physical Society
Year: 2022

description: The valence and core levels of In₂O₃ and Sn-doped In₂O₃ have been studied by hard x-ray photoemission spectroscopy (hν=6000 eV) and by conventional Al Kα (hν=1486.6 eV) x-ray photoemission spectroscopy. The experimental spectra are compared with density-functional theory calculations. It is shown that structure deriving from electronic levels with significant In or Sn 5s character is selectively enhanced under 6000 eV excitation. This allows us to infer that conduction band states in Sn-doped samples and states at the bottom of the valence band both contain a pronounced In 5s contribution. The In 3d core line measured at hν=1486.6 eV for both undoped and Sn-doped In₂O₃ display an asymmetric lineshape, and may be fitted with two components associated with screened and unscreened final states. The In 3d core line spectra excited at hν=6000 eV for the Sn-doped samples display pronounced shoulders and demand a fit with two components. The In 3d core line spectrum for the undoped sample can also be fitted with two components, although the relative intensity of the component associated with the screened final state is low, compared to excitation at 1486.6 eV. These results are consistent with a high concentration of carriers confined close to the surface of nominally undoped In₂O₃. This conclusion is in accord with the fact that a conduction band feature observed for undoped In₂O₃ in Al Kα x-ray photoemission is much weaker than expected in hard x-ray photoemission.
Choline chloride as an efficient catalyst for the synthesis of styryl-pyrazoles
Creators: name: Hardesh K. Maurya
name: Kripa Shankar Nainawat
name: Gupta, Atul
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Computational Biology

description: An efficient and green methodology for syntheses of various styryl-pyrazoles (3) from the reaction of 2-(5-phenyl-1H-pyrazol-3-yl)acetonitriles (1) with substituted benzaldehydes (2) by the use of biodegradable, nonhazardous, naturally occurring, and inexpensive choline chloride and NaOH under an environmentally benign medium has been described.
Choline Chloride as an Efficient Catalyst for the Synthesis of Styryl-Pyrazoles
Creators: name: Hardesh K Maurya
name: Kripa Shankar Nainawat
name: Gupta, Atul
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: Computational Biology

description: An efficient greener methodology for syntheses of various styryl-pyrazoles (3) from the reaction of 2-(5-phenyl-1H-pyrazol-3-yl)acetonitriles (1) with substituted benzaldehydes (2) by the use of biodegradable, non-hazardous, naturally occurring and inexpensive choline chloride and NaOH under environmentally benign medium has been delineated.
title: First-principles study of intrinsic point defects in ZnO: Role of band structure, volume relaxation, and finite-size effects
Creators: name: Erhart, Paul
name: Albe, Karsten
name: Klein, Andreas
Publisher: name: American Physical Society
Year: 2022

description: Density-functional theory (DFT) calculations of intrinsic point defect properties in zinc oxide were performed in order to remedy the influence of finite-size effects and the improper description of the band structure. The generalized gradient approximation (GGA) with empirical self-interaction corrections (GGA+U) was applied to correct for the overestimation of covalency intrinsic to GGA-DFT calculations. Elastic as well as electrostatic image interactions were accounted for by application of extensive finite-size scaling and compensating charge corrections. Size-corrected formation enthalpies and volumes as well as their charge state dependence have been deduced. Our results partly confirm earlier calculations but reveal a larger number of transition levels: (1) For both the zinc interstitial as well as the oxygen vacancy, transition levels are close to the conduction band minimum. (2) The zinc vacancy shows a transition rather close to the valence band maximum and another one near the middle of the calculated band gap. (3) For the oxygen interstitials, transition levels occur both near the valence band maximum and the conduction band minimum.
Effect of Carbon Supports on Pd Catalyst for Hydrogenation Debenzylation of Hexabenzylhexaazaisowurtzitane (HBIW)
Creators: name: Mingxia Zhang
name: Liu, Shuang
name: Li, Li
name: Xiaoqiang Li
name: Haifeng Huang
name: Yin, Jie
name: Shao, Xin
name: Yang, Jun
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: A series of carbon material–supported Pd catalysts was prepared and used for hydrogenation debenzylation of hexabenzylhexaazaisowurtzitane (HBIW). The structures and morphologies of carbon supports were characterized by field emission scanning electron microscopy (FESEM), physical adsorption, and Raman spectroscopy. X-ray diffraction (XRD), H2-TPR, transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) were used to characterize Pd-supported carbon. The species Pd, with the states, Pd° and PdOx, were presented to the catalysts and can be reduced to Pd° as the active centers during the reaction. Among layer, tube, and ordered/disordered pore structures, disordered mesoporous carbon exhibited a high content of Pd on the surface and can be used as an efficient support in terms of high catalytic activity and good recycled stability for hydrogenation debenzylation of HBIW.
Wnt5A/Ryk signaling critically affects barrier function in human vascular endothelial cells
Creators: name: Skaria, Tom
name: Bachli, Esther
name: Schoedon, Gabriele
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Satisfactory therapeutic strategies for septic shock are still missing. Previously we found elevated levels of Wnt5A in patients with severe sepsis and septic shock. Wnt5A is released by activated macrophages but knowledge of its effects in the vascular system remains scant. Here we investigate the response of human coronary artery endothelial cells (HCAEC) to Wnt5A. We used a genome-wide differential expression approach to define novel targets regulated by Wnt5A. Gene ontology analysis of expression profiles revealed clusters of genes involved in actin cytoskeleton remodeling as the predominant targets of Wnt5A. Wnt5A targeted Rho-associated protein serine/threonine kinase (ROCK), leading to phosphorylation of LIM kinase-2 (LIMK2) and inactivation of the actin depolymerization factor cofilin-1 (CFL1). Functional experiments recording cytoskeletal rearrangements in living cells showed that Wnt5A enhanced stress fiber formation as a consequence of reduced actin depolymerization. The antagonist Wnt inhibitory factor 1 (WIF1) that specifically interferes with the WIF domain of Ryk receptors prevented actin polymerization. Wnt5A disrupted β-catenin and VE-cadherin adherens junctions forming inter-endothelial gaps. Functional experiments targeting the endothelial monolayer integrity and live recording of trans-endothelial resistance revealed enhanced permeability of Wnt5A-treated HCAEC. Ryk silencing completely prevented Wnt5A-induced endothelial hyperpermeability. Wnt5A decreased wound healing capacity of HCAEC monolayers; this was restored by the ROCK inhibitor Y-27632. Here we show that Wnt5A acts on the vascular endothelium causing enhanced permeability through Ryk interaction and downstream ROCK/LIMK2/CFL1 signaling. Wnt5A/Ryk signaling might provide novel therapeutic strategies to prevent capillary leakage in systemic inflammation and septic shock.
Wnt5A/Ryk Signaling Critically Affects Barrier Function in Human Vascular Endothelial Cells
Creators: name: Skaria, Tom
name: Bachli, Esther
name: Schoedon, Gabriele
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Objective— Satisfactory therapeutic strategies for septic shock are still missing. Previously we found elevated levels of Wnt5A in patients with severe sepsis and septic shock. Wnt5A is released by activated macrophages but knowledge of its effects in the vascular system remains scant. Here we investigate the response of human coronary artery endothelial cells (HCAEC) to Wnt5A. Approach and Results—We used a genome-wide differential expression approach to define novel targets regulated by Wnt5A. Gene ontology analysis of expression profiles revealed clusters of genes involved in actin cytoskeleton remodeling as the predominant targets of Wnt5A. Wnt5A targeted Rho-associated protein serine/threonine kinase (ROCK), leading to phosphorylation of LIM kinase-2 (LIMK2) and inactivation of the actin depolymerization factor cofilin-1 (CFL1). Functional experiments recording cytoskeletal rearrangements in living cells showed that Wnt5A enhanced stress fiber formation as a consequence of reduced actin depolymerization. The antagonist Wnt inhibitory factor 1 (WIF1) that specifically interferes with the WIF domain of Ryk receptors prevented actin polymerization. Wnt5A disrupted β-catenin and VE-cadherin adherens junctions forming inter-endothelial gaps. Functional experiments targeting the endothelial monolayer integrity and live recording of trans-endothelial resistance revealed enhanced permeability of Wnt5A-treated HCAEC. Ryk silencing completely prevented Wnt5A-induced endothelial hyperpermeability. Wnt5A decreased wound healing capacity of HCAEC monolayers; this was restored by the ROCK inhibitor Y-27632. Conclusions—Here we show that Wnt5A acts on the vascular endothelium causing enhanced permeability through Ryk interaction and downstream ROCK/LIMK2/CFL1 signaling. Wnt5A/Ryk signaling might provide novel therapeutic strategies to prevent capillary leakage in systemic inflammation and septic shock.
Experimental study of the influence of silica nanoparticles on the bulk stability of SDS-foam in the presence of oil
Creators: name: Nurudeen Yekeen
name: Idris, Ahmad Kamal
name: Muhammad. A. Manan
name: Samin, Ali Mohamed
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry

description: The influence of silica nanoparticles on the bulk stability of SDS-foam in the presence of oil was investigated in this study using KRÜSS dynamic foam analyzer. The bulk foam static stability was evaluated from half-decay time, liquid drainage, bubble size distribution, and change in total height and volume of the generated foams with respect to time. Results clearly showed that foam stability in the presence of oil mainly depends on the viscosity and density of the oil. Foam stability increased with the addition of silica nanoparticles due to the aggregation of the nanoparticles at the thin lamellae of the foam, which prevents spreading of the oil at the gas–liquid interface. Moreover, optimum foam stability was obtained with the modified nanosilica–SDS mixtures, while slower liquid drainage from the foam did not generally result in high foam stability.
title: First-principles study of the structure and stability of oxygen defects in zinc oxide
Creators: name: Erhart, Paul
name: Klein, Andreas
name: Albe, Karsten
Publisher: name: American Physical Society
Year: 2022

description: A comparative study on the structure and stability of oxygen defects in ZnO is presented. By means of first-principles calculations based on local density functional theory we investigate the oxygen vacancy and different interstitial configurations of oxygen in various charge states. Our results reveal that dumbbell-like structures are thermodynamically the most stable interstitial configurations for neutral and positive charge states due to the formation of a strongly covalent oxygen–oxygen bond. For negative charge states the system prefers a split-interstitial configuration with two oxygen atoms in almost symmetric positions with respect to the associated perfect lattice site. The calculated defect formation energies imply that interstitial oxygen atoms may provide both donor- and acceptor-like defects.
Experimental Study of Influence of Silica Nanoparticles on the Bulk Stability of SDS-Foam in Presence of Oil
Creators: name: Nurudeen Yekeen
name: Idris, Ahmad Kamal
name: Muhammad. A. Manan
name: Samin, Ali Mohamed
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry

description: The influence of silica nanoparticles on the bulk stability of SDS-foam in presence of oil was investigated in this study using KRÜSS dynamic foam analyzer. The bulk foam static stability was evaluated from half-decay time, liquid drainage, bubble size distribution, change in total height and volume of generated foams with respect to time. Results clearly showed that foam stability in the presence of oil mainly depends on the viscosity and density of the oil. Foam stability increased with the addition of silica nanoparticles due to aggregation of the nanoparticles at the thin lamellae of the foam which prevents spreading of the oil at the gas-liquid interface. Moreover, optimum foam stability was obtained with the modified nanosilica-SDS mixtures while slower liquid drainage from the foam did not generally results in high foam stability.
Mass spectral studies of 1-(2-chloroethoxy)-2-[(2-chloroethyl)thio]ethane and related compounds using gas chromatography–mass spectrometry (GC-MS) and gas chromatography–triple quad mass spectrometry (GC-QQQ)
Creators: name: Fu-Lian Hsu
name: Winemiller, Mark D.
name: Bae, Su Y.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The electron impact and collision-ion-dissociation mass spectra of 1-(2-chloroethoxy)-2-[(2-chloroethyl) thio]ethane (1) and 10 related molecules were obtained using gas chromatography–mass spectrometry and gas chromatography–triple quad mass spectrometry. These mass spectral studies were performed to facilitate the development of a spectral database of mustard-related compounds for verification purposes of the Chemical Weapons Convention. The proposed fragmentation pathways of each individual molecule (1–11) are reported along with rationalizations for the most characteristic ions.
Lewis acid-catalyzed asymmetric synthesis of complex chiral-fluorinated aminoesters via addition of acyclic silyl dienolates to α-fluoroalkyl sulfinylimines
Creators: name: Yingle Liu
name: Yang, Yi
name: Jiang, Yan
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Plant Biology
subject: FOS: Biological sciences

description: A Lewis acid-catalyzed asymmetric addition reaction of β-methyl- or γ-methyl-substituted acyclic silyl dienolates 2 with α-fluoroalkylsulfinylimines 1 furnished complex fluorinated aminoesters in high yield under stereocontrol. Two different transition states were proposed to explain the observed selectivity.
THE CONTENT AND ESSENCE OF THE CRIME OF DISCLOSING INFORMATION THAT DEGRADES A PERSON'S HONOR AND DIGNITY AND REVEALS CONFIDENTIAL ASPECTS OF HUMAN LIFE
Creators: name: Jumaqulov, Jakhongir
Publisher: name: Zenodo
Year: 2025

description: This article presents the essence and content of disclosing information that degrades a person's honor and dignity and reveals confidential aspects of human life, its concept, scholars' opinions on this matter, differences between concepts, and provides proposals and recommendations regarding the essence and content of this crime.
On the Representation of Magnetic Particle Imaging in Fourier Space
Creators: name: Maass, Marco
name: Mertins, Alfred
Publisher: name: International Journal on Magnetic Particle Imaging
Year: 2019

description: Magnetic particle imaging is a tracer-based medical imaging modality. Although various reconstruction methods are known, such as the ones based on a measured system matrix, the mathematical formulation of physical models of magnetic particle imaging is still lacking in several ways. Even for fairly simplified models, such as the Langevin model of paramagnetism, many properties are unproven. Only when one-dimensional excitation is used, the existing models are sufficient to derive simple and fast reconstruction techniques, like the so-called x-space and Chebyshev reconstruction approaches. Recently, an accurate formulation of the one-dimensional Fourier transformof the Langevin function and related functions has been provided. The present article extends the theory to multidimensional magnetic particle imaging. The derived formulations help us to calculate the exact relationship between the system function of Lissajous field-free-point trajectory based magnetic particle imaging and tensor products of Chebyshev polynomials and also uncover a direct relationship to tensor products of Bessel functions of first kind in the spatio-temporal Fourier domain. Moreover, the developed formulation consolidates the mathematical description of magnetic particle imaging and lays the basis for the investigation of different trajectories. Int. J. Mag. Part. Imag. 6(1), 2019, Article ID: 1912001, DOI: 10.18416/IJMPI.2019.1912001
description: International Journal on Magnetic Particle Imaging, Vol 6 No 1 (2020)
title: Influence of orbital contributions to the valence band alignment of Bi2O3, Fe2O3, BiFeO3, and Bi0.5Na0.5TiO3
Creators: name: Li, Shunyi
name: Morasch, Jan
name: Klein, Andreas
name: Chirila, Christina
name: Pintilie, Lucian
name: Jia, Lichao
name: Ellmer, Klaus
name: Naderer, Michael
name: Reichmann, Klaus
name: Gröting, Melanie
name: Albe, Karsten
Publisher: name: American Physical Society
Year: 2022

description: The formation of an interface between Bi2O3, Fe2O3, BiFeO3, Bi0.5Na0.5TiO3, and the high work function metallic RuO2 is studied using photoelectron spectroscopy with in situ RuO2 deposition. Schottky barrier heights are derived and the valence band maximum energies of the studied materials are aligned with respect to each other as well as to other functional oxides like SrTiO3 and PbTiO3. The energy band alignment follows systematic trends compared to a large number of oxides, and can be understood in terms of the contribution of Fe 3d and Bi 6s/6p (lone pair) orbitals to electronic states near the valence band maximum. The results indicate that the valence band maxima are largely determined by the local environment of the cations, which allows to estimate valence band maximum energies of oxides with multiple cations from those of their parent binary compounds. The high valence band maximum of BiFeO3 is consistent with reported p-type conduction of acceptor doped material, while the high conduction band minimum makes n-type conduction unlikely.
Pseudomonas toxin pyocyanin triggers autophagy: Implications for pathoadaptive mutations
Creators: name: Yang, Zhong-Shan
name: Lan-Qing Ma
name: Zhu, Kun
name: Yan, Jin-Yuan
name: Bian, Li
name: Zhang, Ke-Qin
name: Zou, Cheng-Gang
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Pseudomonas aeruginosa can establish life-long chronic infection in patients with cystic fibrosis by generating genetic loss-of-function mutations, which enhance fitness of the bacterium in the airways. However, the precise role of the pathoadaptive mutations in persistence in chronic airways infection remains largely unknown. Here we demonstrate that pyocyanin, a well-described P. aeruginosa virulence factor that plays an important role in the initial infection, promotes autophagy in bronchial epithelial cells. Disruption of phzM, which is required for pyocyanin biosynthesis, leads to a significant reduction in autophagy in Beas-2B cells and lung tissues. Pyocyanin-induced autophagy is mediated by the EIF2AK4/GCN2-EIF2S1/eIF2α-ATF4 pathway. Interestingly, rats infected with the phzMΔ mutant strain have high mortality rate and numbers of colony-forming units, compared to those infected with wild-type (WT) P. aeruginosa PA14 strain, during chronic P. aeruginosa infection. In addition, the phzMΔ mutant strain induces more extensive alveolar wall thickening than the WT strain in the pulmonary airways of rats. As autophagy plays an essential role in suppressing bacterial burden, our findings provide a detailed understanding of why reduction of pyocyanin production in P. aeruginosa in chronic airways infections has been associated with better host adaptation and worse outcomes in cystic fibrosis.
Is it Possible to Make All the Components of the Energy-Impulse Tensor Positive in the Alcubierre Warp Drive?
Creators: name: perniciano, gianluca
Publisher: name: Zenodo
Year: 2015

description: A solution of general relativity is presented that describes an Alcubierre propulsion system in which it is possible to travel at superluminal speed while reducing the components of the energy-impulse tensor, which turn out to be positive, by an arbitrary value.
Eucalyptus urograndis and Pinus taeda enhance removal of chlorobenzene and benzene in sand culture: A greenhouse study
Creators: name: Barcellos, Diego
name: Morris, Lawrence A.
name: Nzengung, Valentine
name: Moura, Tiago
name: Nehru Mantripragada
name: Thompson, Aaron
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Contamination of soils and groundwater by chlorobenzene and benzene is a common problem at industrial sites worldwide. Since chemical remediation techniques are rarely completely effective, remnants of these contaminants often persist at levels that can still influence ecosystem health. We evaluated the potential of Pinus taeda and Eucalyptus urograndis to accelerate the removal of these compounds from sand/water systems using a completely randomized block greenhouse experiment with a no-plant control. At 2-day intervals, we added a solution containing both chlorobenzene and benzene with the same concentration of 50 mg L−1 (25 mg pot−1), and we monitored leachate concentrations daily. The planted treatments showed greater decrease of contaminants over time. In the absence of plants, the contaminant mass decreased 50–60% during each 2-day cycle; whereas, in the planted treatments the contaminant mass decreased 91–98%. At the end of the experiment the plant roots, leaves, and the sand-substrate each contained less than 1 mg kg−1 of contaminants, which is ∼1% of the total contaminant mass added. In addition, we observed no tree mortality even at concentrations exceeding the aqueous solubility limit of both compounds. Our results suggest both trees are good candidates for remediating chlorobenzene and benzene in soils and groundwater.
Optimizing screening for depression among adults with asthma
Creators: name: Plourde, Annik
name: Moullec, Gregory
name: Bacon, Simon L.
name: Suarthana, Eva
name: Lavoie, Kim L.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Objective: The Beck Depression Inventory II (BDI-II) is one of the most frequently used tools to screen for depression in patients with chronic diseases such as cardiovascular disease and asthma. However, its original cut-off score has not been validated in adult asthmatics. The present study aimed to determine the optimal BDI-II cut-off score and to verify the impact of various patient sociodemographic and clinical characteristics on performance accuracy of the BDI-II. Methods: A total of 801 adult asthmatic outpatients (mean ± SD, age 49 ± 14 years, 60% female) completed the BDI-II and a structured psychiatric interview (used as the standard referent to determine presence of major depressive disorder [MDD]). The sensitivity and specificity of the BDI-II were computed to determine the optimal cut-off score for identifying MDD. The optimal cut-off scores were also verified across covariate subgroups (e.g., sex, age, smoking status, asthma control levels). Results: According to the structured psychiatric interview, 108 (13%) patients had current MDD. The overall optimal BDI-II cut-off score was 12 (sensitivity = 85%, specificity = 79%). However, subgroup analyses revealed that this score could range from 11 to 15 depending on the characteristics of the individual. Conclusions: Results suggest that the BDI-II is an appropriate screening tool for MDD in asthma populations. However, the cut-off score is influenced by the sociodemographic and clinical characteristics of patients. These findings highlight the importance of validating generic questionnaires for depression in specific populations in order to improve the accuracy of their usage.
3D-Printing with Incorporated Iron Particles for Magnetic Actuation and MPI
Creators: name: Bakenecker, Anna C.
name: Von Gladiss, Anselm
name: Friedrich, Thomas
name: Buzug, Thorsten M.
Publisher: name: International Journal on Magnetic Particle Imaging
Year: 2020

description: Magnetic particle imaging (MPI) scanners cannot only be used to image the distribution of magnetic nanoparticles, but the magnetic fields also facilitate to actuate magnetic devices. This enables the dual use of MPI scanners for simultaneous actuation and visualization of magnetic objects. It is of great interest for a variety of medical applications to magnetically steer devices, such as catheters or capsule endoscopes. Endoscopic capsules, which are driven by the natural peristaltic movements, are already in clinical routine. However, they cannot be used for the investigation of the stomach, since the capsules cannot be steered. Hence, steerable magnetic capsules can be used to endoscopically investigate the whole gastrointestinal tract, to take a biopsy or to deliver drugs locally. The 3D tomographic localization of such steerable capsules is an open task, but it is essential to localize detected abnormalities for subsequent treatments. Since MPI provides tomographic real-time images of magnetic material, it seems to be beneficial to visualize the actuation process with MPI. In this work, a material for additive manufacturing is investigated, which consists of polylactide with incorporated iron powder of µm-sized particles. The material is analyzed by light microscopy, vibrating sample magnetometry and magnetic particle spectrometry. Then the feasibility to actuate and visualize macroscopic devices made of this material inside an MPI scanner is shown. The fabricated object has a length of about 2 cm and can be rotated when applying sinusoidal currents to the focus field coils of an MPI scanner. In addition, the objects' shape led to a forward velocity in water. The suitability of the 3D-printing material for MPI is shown and static 3D images are presented. Int. J. Mag. Part. Imag. 6(1), 2020, Article ID: 2003001, DOI: 10.18416/IJMPI.2020.2003001
description: International Journal on Magnetic Particle Imaging, Vol 6 No 1 (2020)
Regiospecific Synthesis of Dimethylphenanthrenes
Creators: name: Böhme, Thomas
name: Lorentzen, Marianne
name: Jørgensen, Kåre B.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Plant Biology
subject: Computational Biology

description: The dimethylated phenanthrenes 2,3-dimethylphenanthrene (4a), 2,7-dimethylphenanthrene (4b), 2,6-dimethylphenanthrene (4c) and 1,7-dimethylphenanthrene (4d) have been prepared in gram-quantities by a short sequence of directed ortho metalation (DoM) of N,N-diethylbenzamides followed by Suzuki–Miyaura cross-coupling reaction and directed remote metalation (DreM) to form 9-phenanthrols. The final phenanthrenes were obtained through protection/deprotection as triflates.
Supplementary document for Ultracompact wavefront characterization of femtosecond 3D printed microlenses using double-frequency Ronchi interferometry - 6871810.pdf
Creators: name: Imiolczyk, Claudia
name: Pfau, Teresa
name: Thiele, Simon
name: Karst, Julian
name: Floess, Moritz
name: Schmid, Michael
name: Hentschel, Mario
name: Giessen, Harald
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental document
Supplementary document for Continuous wave terahertz detection using 1550 nm pumped nonlinear photoconductive GaAs metasurfaces - 6814188.pdf
Creators: name: Seddon, James
name: Hale, Lucy
name: Jung, Hyunseung
name: Norman, Sarah
name: Brener, Igal
name: Seeds, Alwyn
name: Renaud, Cyril
name: Mitrofanov, Oleg
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplemental Information
Governance of knowledge management strategy implementation: a new lens on an evolving practice
Creators: name: Zyngier, S.
name: Burstein, Frada
name: Mckay, J.
Publisher: name: Monash University
Year: 2016
Subjects: Uncategorized

description: Previous research has examined different understandings of the concept of knowledge management and from this, a multiplicity of approaches to implement strategies have been derived. This paper presents research that utilizes the role of governance as a lens to examine the effective delivery of a knowledge management strategy. Knowledge management governance is considered and a conceptual model developed to appropriately position knowledge management governance within the organization. It draws on the preliminary results into knowledge management governance practices in a major scientific research facility and suggests that the implementation of strategy through such a framework operates to ensure the delivery of anticipated benefits in an authorized and regulated manner.
Presented at: CISTM 2004: Improving Business Performance through Knowledge Management; 2004 Jul 8-9; Alexandria, Egypt. 12 leaves.
Magical Allotropes of Carbon: Prospects and Applications
Creators: name: Tiwari, Santosh K.
name: Kumar, Vijay
name: Huczko, Andrzej
name: R. Oraon
name: A. De Adhikari
name: G. C. Nayak
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Space Science
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: The invention of carbon and its allotropes have transformed the electronic and optoelectronic industry due to their encouraging properties in a large spectrum of applications. The interesting characteristic of carbon is its ability to form many allotropes due to its valency. In recent decades, various allotropes and forms of carbon have been invented, including fullerenes, carbon nanotubes (CNTs), and graphene (GR). Since the inception of nanotechnology, carbon allotropes-based nanocomposites have become a leading sector of research and advancement due to their unique bonding properties. Fullerenes and CNTs-based polymer nanocomposites have attracted significant research interest due to their vast applications in every sphere of science and technology. Current research impetus reveals that carbon and its allotropes have revolutionized the industry and academia due to their fascinated properties. Recent advances in various aspects of graphene, CNTs, graphene nanoribbons, fullerenes, carbon encapsulates, and their nanocomposites with polymeric materials and their different applications are reported in this review article. Also, current status and future prospects of graphene-based polymer nanocomposites are presented in common along with proper citations extracted from the scientific literature. Moreover, this article is a unique collection of vital information about GR, CNTs, fullerenes, and graphene-based polymer nanocomposites in a single platform.
title: Laterally inhomogeneous surface-potential distribution and photovoltage at clustered In/WSe₂(0001) interfaces
Creators: name: Schlaf, R.
name: Klein, Andreas
name: Pettenkofer, C.
name: Jaegermann, Wolfram
Publisher: name: American Physical Society
Year: 2022

description: Small increments of indium were evaporated at 300 and 100 K onto the van der Waals (0001) surface of p-type WSe₂ crystals. The interface formation was investigated in vacuo with x-ray photoemission spectroscopy, ultraviolet photoemisson spectroscopy, soft-x-ray photoemission spectroscopy, and low-energy electron diffraction. Additional scanning tunneling microscopy (STM), scanning electron microscopy (SEM), and microprobe measurements were performed ex situ. For deposition at 300 K a nonreactive interface is formed and the indium layer grows in the Volmer-Weber growth mode. The size and distribution of the In clusters for specific coverages were determined ex situ by STM and SEM. The band bending of 0.55 eV, as determined from binding-energy shifts of the substrate emissions, is far below the expected Schottky-limit value of 1.1 eV. The observed surface-photovoltage (SPV) shifts of the substrate emission lines are smaller (up to 0.2 eV) than those from the adsorbate lines. The maximum adsorbate SPV shift of 0.6 eV at 150 K exceeds the measured band bending, indicating that the band bending beneath the In clusters must be larger than between them. At a sample temperature of 100 K, In forms atomically flat layers (Frank–van der Merwe growth) allowing the determination of the actual band bending of 0.9–1.0 eV below the In-covered surface. For these conditions, the SPV is only 0.1 eV due to an electrical leakage current. During warmup to 300 K, a transition to the clustered interface occurs. For this interface, the band bending below the indium clusters could also be determined from temperature-dependent SPV measurements. The determined barrier height of 1.04 eV is in good agreement with the value measured at the unclustered interface.
A field study on heavy metals phytoattenuation potential of monocropping and intercropping of maize and/or legumes in weakly alkaline soils
Creators: name: Saiyong Zhu
name: Xinwang Ma
name: Guo, Rui
name: Shiwei Ai
name: Bailin Liu
name: Wenya Zhang
name: Yingmei Zhang
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Cell Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy
subject: Plant Biology

description: The study focused on the phytoattenuation effects of monocropping and intercropping of maize (Zea mays) and/or legumes on Cu, Zn, Pb, and Cd in weakly alkaline soils. Nine growth stages of monocropping maize were chosen to study the dynamic process of extraction of heavy metals. The total content of heavy metals extracted by the aerial part of monocropped maize increased in a sigmoidal pattern over the effective accumulative temperature. The biggest biomass, highest extraction content, and lowest heavy metals bioaccumulation level occurred at physiological maturity. Among the different planting patterns, including monocropping and intercropping of maize and/or soybean (Glycine max), pea (Pisum sativum), and alfalfa (Medicago sativa), the extraction efficiency of Cu, Zn, Pb, and Cd varied greatly. Only intercropping of maize and soybean yielded relatively higher extraction efficiency for the four metals with no significant difference in the total biomass. Moreover, the heavy metals concentrations in dry biomass from all the planting patterns in the present study were within China's national legal thresholds for fodder use. Therefore, slightly polluted alkaline soils can be safely used through monocropping and intercropping of maize and/or legumes for a range of purposes. In particular, this study indicated that intercropping improves soil ecosystems polluted by heavy metals compared with monocropping.
Surveillance of the Activity of Aminoglycosides and Fluoroquinolones Against Ophthalmic Pathogens from Europe in 2010–2011
Creators: name: Sanfilippo, Christine M.
name: Morrissey, Ian
name: Janes, Regina
name: Morris, Timothy W.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Purpose/Aim: Bacterial infections of the ocular surface are commonly treated empirically with broad spectrum antibiotics. Due to concerns over increasing antibiotic resistance, we evaluated current susceptibility patterns of the ocular bacterial pathogens in Europe. Materials and methods: Non-consecutive ocular isolates of Staphylococcus aureus, coagulase-negative staphylococci (CoNS), Streptococcus pneumoniae, Haemophilus influenzae, and Pseudomonas aeruginosa were collected in 2011 from centers in France, Germany, Italy, Poland, Slovak Republic, Spain, and the United Kingdom. Centers were asked to provide similar numbers of methicillin-susceptible and -resistant staphylococcal isolates. Minimum inhibitory concentrations were determined for fluoroquinolones (besifloxacin, ciprofloxacin, moxifloxacin), aminoglycosides (tobramycin, gentamicin, netilmicin), oxacillin, chloramphenicol and erythromycin. Isolates were categorized as susceptible, intermediate, or resistant according to European Committee on Antimicrobial Susceptibility Testing (EUCAST) criteria. Results: A total of 741 ocular isolates were obtained. Antibiotic resistance rates depended not only on the antibiotic and species, but also varied greatly by the country of origin. Resistance to ciprofloxacin, tobramycin, erythromycin, and to a lesser extent, chloramphenicol, was a concern for all staphylococci. Multidrug resistance was common among methicillin-resistant S. aureus (MRSA) and MRCoNS and isolates of S. pneumoniae, H. influenzae, and P. aeruginosa were frequently non-susceptible to erythromycin, beta-lactams, and ciprofloxacin/tobramycin, respectively. Resistance rates showed substantial differences among the seven countries tested. Fluoroquinolones and aminoglycosides showed differences in antibacterial potency and resilience toward the antibiotic resistance mechanisms. Conclusions: Methicillin-resistant staphylococcal isolates were frequently non-susceptible to a multitude of other antibiotics, making MRSA and MRCoNS a potentially significant concern. The broad range of resistance rates observed across Europe in this study confirms the importance of considering current local resistance patterns when antibacterial agents are chosen for empiric management of ocular infections.
Phytoremediation Of Wastewaters Toxicity Using Water Hyacinth (Eichhornia Crassipes) And Water Lettuce (Pistia Stratiotes)
Creators: name: Kouamé Kouamé Victor
name: Yapoga Séka
name: Kouadio Kouakou Norbert
name: Tidou Abiba Sanogo
name: Atsé Boua Celestin
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Space Science
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: This paper elucidates the phytoremediation potential of water hyacinth and water lettuce on the reduction of wastewaters toxicity. Acute toxicity tests were performed in aquarium with a population of Sarotherodon melanotheron contaminated by different concentrations of wastewaters before and after phytoremadiation with Eichhornia crassipes and Pistia stratiotes. LC50 of fish's population for 24 hours of exposures were determined. COD, BOD, ammonium, TKN and PO43− concentrations of wastewaters were of 1850.29 mg.L−1, 973.33 mg.L−1, 38.34 mg.L−1, 61.49 mg.L−1 and 39.23 mg.L−1 respectively for each plant. Phytoremediation reduced 58.87 % of ammonium content, 50.04 % of PO43–, 82.45 % of COD and 84.91 % of BOD. After 15 days of the experiment, metal contents in treated wastewaters were decreased up to 6.65–97.56 % for water hyacinth and 3.51–93.51 % water lettuce tanks. Toxicity tests showed that the mortality of fish exposed increased with the pollutants concentrations of wastewaters and the time of exposure. So, highest value of CL50 was recorded for fish subjected to 3 hours of exposure (16.37%). And the lowest rate was obtained after an exposure from 20 to 24 hours (5.85%). After the phytoremediation, the effluents purified by Eichhornia crassipes can maintain fish life beyond 24 hours of exposure.