cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Synthesis, spectral, DFT, and antimicrobial studies of tin(II) and lead(II) complexes with semicarbazone and thiosemicarbazones derived from (2-hydroxyphenyl)(pyrrolidin-1-yl)methanone
Creators: name: Singh, Har Lal
name: J.B. Singh
name: Bhanuka, Sunita
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: 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: 20199 Astronomical and Space Sciences not elsewhere classified
subject: Cancer

description: A new series of metal complexes [M(L)2] (where M = Sn(II), Pb(II), and HL = semicarbazone, thiosemicarbazone or phenylthiosemicarbazone) have been prepared and characterized by elemental analysis, conductance measurements, molecular weight determinations, UV–visible, infrared, and nuclear magnetic resonance (1H-, 13C-, and 119Sn-NMR) spectral studies. Elemental analysis of the metal complexes suggested 1 : 2 (metal–ligand) stoichiometry. Infrared spectra of the complexes agree with coordination to the metal through the nitrogen of the azomethine (>C=N−) and the oxygen/sulfur of the ketonic/thiolic group. Electronic spectra suggest a distorted tetrahedral geometry for all Schiff base complexes. The bond lengths, bond angles, highest occupied molecular orbital, lowest unoccupied molecular orbital, Mulliken atomic charges, and the lowest energy model structure of the complexes have been determined with DFT calculations. Representative Schiff base and its metal chelates have been screened for their in vitro antibacterial activity against four bacteria, Gram-positive (Bacillus cereus, Staphylococcus aureus) and Gram-negative (Escherichia coli, Klebsiella pneumoniae) and four strains of fungus (Penicillium chrysogenum, Aspergillus niger, Rhizopus nigricans, and Alternaria alternata). The metal chelates possess higher antimicrobial activity than the free ligands.
Markovnikov hydroformylation catalyzed by ROPAC in the presence of phosphine and phosphine oxide ligands
Creators: name: Kharat, Ali Nemati
name: Kouchi, Fereshteh Rajabi
name: Jahromi, Bahareh Tamaddoni
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Biological Sciences
Chemistry
Molecular Biology
Biochemistry
Biophysics

description: Rhodium catalyzed hydroformylation of 1-octene in the presence of different phosphine and phosphine oxide ligands has been investigated. The molecular structure of new phosphine ligand, fluorenylidine methyl phenyl diphenylphosphine was determined by single-crystal X-ray crystallography. Parameters such as different ligands, molar ratio of ligand to rhodium complex, ratio of olefin to rhodium complex, pressure of CO:H2 mixture and time of the reaction were studied. The linear aldehyde was the main product when the phosphine ligands were used as auxiliary ligands while the selectivity was changed to the branched products when the related phosphine oxide ligands were used. Under optimized reaction conditions, in the presence of [Rh(acac)(CO)(Ph3P)]-di(1-naphthyl)phenyl phosphine oxide, conversion of 1-octene reached 97% with 87% selectivity of branched aldehyde.
Many-body quantum dynamics of spin-orbit coupled Andreev states in a Zeeman field
Creators: name: Zatsarynna, Kateryna
name: Nava, Andrea
name: Zazunov, Alex
name: Egger, Reinhold
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We provide a theoretical framework to describe the quantum many-body dynamics of Andreev states in Josephson junctions with spin-orbit coupling and a magnetic Zeeman field. In such cases, employing a doubled Nambu spinor description is technically advantageous but one then has to be careful to avoid double-counting problems. By deriving the Lindblad master equation in the socalled excitation picture, we show that a physically consistent many-body theory free from doublecounting problems follows. We apply our formalism to a study of dynamical parity stabilization of the Andreev sector at intermediate times after an initial microwave pulse, in particular addressing the combined effects of spin-orbit coupling and Zeeman field.
description: 18 pages, 11 figures
MLatom software ecosystem for surface hopping dynamics in Python with quantum mechanical and machine learning methods
Creators: name: Zhang, Lina
name: Pios, Sebastian V.
name: Martyka, Mikołaj
name: Ge, Fuchun
name: Hou, Yi-Fan
name: Chen, Yuxinxin
name: Chen, Lipeng
name: Jankowska, Joanna
name: Barbatti, Mario
name: Dral, Pavlo O.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present an open-source MLatom@XACS software ecosystem for on-the-fly surface hopping nonadiabatic dynamics based on the Landau-Zener-Belyaev-Lebedev (LZBL) algorithm. The dynamics can be performed via Python API with a wide range of quantum mechanical (QM) and machine learning (ML) methods, including ab initio QM (CASSCF and ADC(2)), semi-empirical QM methods (e.g., AM1, PM3, OMx, and ODMx), and many types of machine learning potentials (e.g., KREG, ANI, and MACE). Combinations of QM and ML methods can also be used. While the user can build their own combinations, we provide AIQM1, which is based on Δ-learning and can be used out of the box. We showcase how AIQM1 reproduces the isomerization quantum yield of trans-azobenzene at a low cost. We provide example scripts that, in a dozen lines, enable the user to obtain the final population plots by simply providing the initial geometry of a molecule. Thus, those scripts perform geometry optimization, normal mode calculations, initial condition sampling, parallel trajectories propagation, population analysis, and final result plotting. Given the capabilities of MLatom to be used for training different ML models, this ecosystem can be seamlessly integrated into the protocols building ML models for nonadiabatic dynamics. In the future, a deeper and more efficient integration of MLatom with Newton-X will enable vast range of functionalities for surface hopping dynamics, such as fewest-switches surface hopping, to facilitate similar workflows via the Python API.
Deep Learning Methods for Colloidal Silver Nanoparticle Concentration and Size Distribution Determination from UV-Vis Extinction Spectra
Creators: name: Klinavičius, Tomas
name: Khinevich, Nadzeya
name: Tamulevičienė, Asta
name: Vidal, Loic
name: Tamulevičius, Sigitas
name: Tamulevičius, Tomas
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Electron microscopy, while reliable, is an expensive, slow, and inefficient technique for thorough size distribution characterization of both mono- and polydisperse colloidal nanoparticles. If rapid in-situ characterization of colloid samples is to be achieved, a different approach, based on fast, widely accessible, and inexpensive optical measurements such as UV-Vis spectroscopy in combination with spectra interpretation related to Mie scattering theory, is needed. In this article, we present a tandem deep neural network (DNN) for the size distribution and concentration prediction of close to spherical silver colloidal nanoparticle batches synthesized via the seeded growth method. The first DNN identified the dipole component of the localized surface plasmon resonance and the second one determined the size distribution from the isolated spectral component. The training data was engineered to be bias-free and generated numerically. High prediction accuracy with root mean square percentage error of mean size down to 1.2% was achieved, spanning the entire prediction range from 1 nm up to 150 nm in radius, suggesting the possible extension limits of the effective medium theory used for simulating the spectra. The DNN-predicted nanoparticle concentrations also were very close to the ones expected based on synthesis precursor contents as well as measured by atomic absorption spectroscopy.
description: 23 pages, 6 figures, 9 supplementary figures, 5 supplementary tables, 1 graphical abstract
Additional file 1 of Association between maternal employment status and presence of children with major congenital anomalies in Denmark
Creators: name: Kim, Kyung Mi
name: Farkas, Dóra Körmendiné
name: Wong, Venus
name: Hjorth, Cathrine Fonnesbech
name: Horváth-Puhó, Erzsébet
name: Cahan, Eli
name: Cohen, Eyal
name: Shah, Nirav R.
name: Sørensen, Henrik Toft
name: Milstein, Arnold
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Biological Sciences not elsewhere classified
subject: Statistics
subject: FOS: Mathematics
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1.
Synthesis and DFT calculations of oxido and phenylimido rhenium(V) complexes incorporating the N, O donor ligand 2-[(2-hydroxyethylimino)methyl]phenol
Creators: name: Pinki Saha
name: Jnan Prakash Naskar
name: Arnab Bhattacharya
name: Ganguly, Rakesh
name: Shubhamoy Chowdhury
name: Baptu Saha
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Biological Sciences
Chemistry
Biotechnology
Cell Biology
Biochemistry
Biophysics

description: The reactions of equimolar amounts of trans-[ReOC13(PPh3)2] or trans-[Re(NPh)(PPh3)2Cl3] with a Schiff base formed by condensation of 2-hydroxy-4-methoxybenzaldehyde and ethanolamine (H2L) result in formation of cis-[ReO(HL)PPh3Cl2] (1a) and trans-[Re(NPh)(HL)(PPh3)Cl2] (2b), respectively, in good yields. 1a and 2b have been characterized by a range of spectroscopic and analytical techniques. The X-ray crystal structures of 1a and 2b reveal that 1a is an octahedral cis-Cl,Cl oxorhenium(V) complex, while 2b is a trans-Cl,Cl phenylimidorhenium(V) complex. The complexes are weakly emissive at room temperature with quantum yields of 10−4. DFT calculations of the electronic properties of the complexes were performed and are in agreement with the experimental results. The complexes display quasi-reversible Re(V)/Re(VI) redox couples in acetonitrile. There is reasonable agreement between the experimental and calculated redox potentials of 1a and 2b.
Optimal shielding for Einstein gravity
Creators: name: Floch, Bruno Le
name: LeFloch, Philippe G.
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: To construct asymptotically-Euclidean Einstein's initial data sets, we introduce the localized seed-to-solution method, which projects from approximate to exact solutions of the Einstein constraints. The method enables us to glue together initial data sets in multiple asymptotically-conical regions, and in particular construct data sets that exhibit the gravity shielding phenomenon, specifically that are localized in a cone and exactly Euclidean outside of it. We achieve optimal shielding in the sense that the metric and extrinsic curvature { are controlled at a super-harmonic rate, regardless of how slowly they decay (even} beyond the standard ADM formalism), and the gluing domain can be a collection of arbitrarily narrow nested cones. We also uncover several notions of independent interest: silhouette functions, localized ADM modulator, and relative energy-momentum vector. An axisymmetric example is provided numerically.
description: 10 pages
Effect of different pH and temperature levels on in vitro growth and sporulation of Phytophthora colocasiae, taro leaf blight pathogen
Creators: name: Iqbal, Zahid
Publisher: name: figshare
Year: 2015
Subjects: subject: 99901 Agricultural Engineering
subject: FOS: Other engineering and technologies
subject: Soil Science
subject: Genetics
subject: FOS: Biological sciences
subject: Education

description: Taro leaf blight disease caused Phytophthora colocasiae Racib is the most destructive disease which can cause
significant economic losses of taro. The research was aimed at examining the effect of temperature and pH on the
in vitro growth and sporulation of the fungus. V8-agar medium was adjusted to various levels of pH by adding
appropriate amount of sodium hydroxide or hydrochloric acid before autoclaving and incubation of the fungus
took place at five different temperatures. Colony diameters of the fungus were measured every day for 7 days and
the number of sporangia was assessed after 21 days. The results showed that a pH of 7 and a temperature of 27 °C
were the optimum conditions for pathogen growth while those of sporulation were 6 and 18 °C respectively . It is
suggested that these factors would play a role in disease development.
Synthesis and characterization of two binuclear nickel(II) complexes of thiophenol-based “end-off” compartmental ligands and their application as catalysts for selective oxidation of sulfides
Creators: name: Khadir, Narjes
name: Amini, Mojtaba
name: Abdeljalil Assoud
name: Bagherzadeh, Mojtaba
name: Davar M. Boghaei
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Biological Sciences
Chemistry
Earth and Environmental Sciences
Molecular Biology
Cell Biology
Biochemistry
Biophysics

description: Reaction of the binucleating S-protected ligand precursors 2-(N,N-dimethylthiocarbamato)-5-methylisophthalaldehyde di-2′-hydroxy anil (I) and 2-(N,N-dimethylthiocarbamato)-5-methylisophthalaldehyde di-2′-hydroxy 5′-methyl anil (II) with nickel(II) acetate tetrahydrate in the presence of pyrazole afforded the binuclear nickel(II) complexes [LINi2(pz)] (1) and [LIINi2(pz)] (2), respectively. The complexes have been characterized by routine physicochemical studies as well as by X-ray single crystal structure analysis. In both complexes, Ni(II) ions are doubly bridged by the thiophenolic sulfur of the pentadentate Schiff base ligand and a pyrazolate group. Efficient protocols for the oxidation of sulfides to sulfoxides with high selectivities, catalyzed by binuclear μ-thiophenolato-μ-pyrazolatonickel(II) in the presence of urea hydrogen peroxide (UHP) were explored. We obtained predominantly the monooxygenated product. The resulting products are obtained in good to excellent yields within a reasonable time.
Institutional Publishing in the ERA: Results from the DIAMAS survey
Creators: name: Armengou, Clara
name: Aschehoug, Astrid
name: Ball, Joanna
name: Bargheer, Margo
name: Bosman, Jeroen
name: Brun, Victoria
name: de Pablo Llorente, Virginia
name: Franczak, Mateusz
name: Frantsvåg, Jan Erik
name: Hersperger, Olivier
name: Klaus, Tabea
name: Kramer, Bianca
name: Kuchma, Iryna
name: Laakso, Mikael
name: Manista, Frank
name: Melinščak Zlodi, Iva
name: Mounier, Pierre
name: Pölönen, Janne
name: Pontille, David
name: Proudman, Vanessa
name: Rico-Castro, Pilar
name: Rooryck, Johan
name: Ross, George
name: Schima, Julian
name: Ševkušić, Milica
name: Souyioultzoglou, Irakleitos
name: Stojanovski, Jadranka
name: Stone, Graham
name: Torny, Didier
name: Vrčon, Andrej
name: Wnuk, Magdalena
Publisher: name: Zenodo
Year: 2023
Subjects: Diamond Open Access

description: This report describes the landscape of institutional publishing in Europe, based on a process of collecting information from the organisations active in institutional publishing in the ERA. It is not a research report and is primarily intended to serve as a resource for the ensuing work packages in the DIAMAS project. This Landscape Report should therefore not be considered as an end product. Nevertheless, the information in the report may be useful for others who want to know more about the institutional publishing landscape in the ERA, and provides a good overview of areas that need attention and issues that need further investigation.
Synthesis, spectral, DFT and antimicrobial studies of tin(II) and lead(II) complexes with semicarbazone and thiosemicarbazones derived from (2-hydroxyphenyl)(pyrrolidin-1-yl)methanone
Creators: name: Singh, Har Lal
name: Jb Singh
name: Bhanuka, Sunita
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Cancer
subject: Biological Sciences
subject: Astronomy, Astrophysics, Space Science
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Microbiology
subject: FOS: Biological sciences
subject: Medicine
subject: Biochemistry

description: A new series of metal complexes [M(L)2] (where M = Sn(II), Pb(II) and HL = semicarbazone, thiosemicarbazone or phenylthiosemicarbazone) have been prepared and characterized by elemental analysis, conductance measurements, molecular weight determinations, UV-visible, infrared, and nuclear magnetic resonance (1H-, 13C-, and 119Sn-NMR) spectral studies. Elemental analysis of the metal complexes suggested 1:2 (metal-ligand) stoichiometry. Infrared spectra of the complexes agree with coordination to the metal through the nitrogen of the azomethine (>C=N−) and the oxygen/sulfur of the ketonic/thiolic group. Electronic spectra suggest a distorted tetrahedral geometry for all Schiff-base complexes. The bond lengths, bond angles, highest occupied molecular orbital (HOMO), lowest unoccupied molecular orbital (LUMO), Mulliken atomic charges and the lowest energy model structure of the complexes have been determined with DFT calculations. Representative Schiff base and its metal chelates have been screened for their in vitro antibacterial activity against four bacteria, Gram-positive (B. cereus, Staphylococcus aureus) and Gram-negative (Escherichia coli, Klebsiella pneumoniae) and four strains of fungus (Pencillium chrysogenum, Aspergillus niger, Rhizopus nigricans and Alternaria Alternata). The metal chelates possess higher antimicrobial activity than the free ligands.
Towards unveiling the Cosmic Reionization: the ionizing photon production efficiency ($ξ_{ion}$) of Low-mass H$α$ emitters at $z \sim 2.3$
Creators: name: Chen, Nuo
name: Motohara, Kentaro
name: Spitler, Lee
name: Nakajima, Kimihiko
name: Terao, Yasunori
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We investigate the galaxy properties of $\sim$400 low-mass ($<10^9\,M_{\odot}$) H$α$ emitters (HAEs) at z $\sim$ 2.3 in the ZFOURGE survey. The selection of these HAEs is based on the excess in the observed $K_s$ broad-band flux compared to the stellar continuum estimated from the best-fit SED. These low-mass HAEs have elevated SFR(H$α$) above the star formation main sequence (SFMS), making them potential analogs of the galaxies that reionized the universe during the epoch of reionization. The ionizing photon production efficiencies ($ξ_{ion}$) of the low-mass HAEs have a median value of $\mathrm{log}(ξ_{ion}/erg^{-1} Hz)=25.24^{+0.10}_{-0.13}\ (25.35^{+0.12}_{-0.15})$, assuming the Calzetti (SMC) curve for the stellar continuum dust correction. This value is higher than that of main sequence galaxies by $\sim$0.2 dex at similar redshift, indicating that the low-mass HAEs are more efficient in producing ionizing photons. Our results also consolidate the trend of increasing $ξ_{ion}$ with redshift, but reveal a "downsizing" relationship between $ξ_{ion}$ and stellar mass ($M_{\odot}$) with increasing redshift. We further explore the dependence of $ξ_{ion}$ on other galaxy properties, such as the UV spectral slope ($β_{\mathrm{UV}}$), the UV magnitude ($M_{\mathrm{UV}}$), the equivalent widths ($EWs$) of H$α$ and [O{\sc iii}] emission lines. Galaxies with the bluer UV slopes, fainter UV luminosities and higher equivalent widths exhibit elevated $ξ_{ion}$ by a factor of $\sim$2 compared to the median $ξ_{ion}$ of our sample. JWST data will provide an opportunity to extend our method and further investigate the properties of low-mass galaxies at high redshifts.
description: 15 pages, 10 figures, Accepted for publication in ApJ
Rotation matrix of a charged symmetrical body: one-parameter family of solutions in elementary functions
Creators: name: Deriglazov, Alexei A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Classical Physics (physics.class-ph)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: Equations of motion of a charged symmetrical body in external constant and homogeneous electric and magnetic fields are deduced starting from the variational problem, where the body is considered as a system of charged point particles subject to holonomic constraints. The final equations are written for the center-of mass-coordinate, rotation matrix and angular velocity. General solution to the equations of motion is obtained for the case of a charged ball. For the case of a symmetrical charged body (solenoid), the task of obtaining the general solution is reduced to the problem of a one-dimensional cubic pseudo-oscillator. Besides, we present a one-parametric family of solutions to the problem in elementary functions.
description: 15 pages
Synthesis and characterization of two binuclear nickel(II) complexes of thiophenol-based “end-off” compartmental ligands and their application as catalysts for selective oxidation of sulfides
Creators: name: Khadir, Narjes
name: Amini, Mojtaba
name: Abdeljalil Assoud
name: Bagherzadeh, Mojtaba
name: Davar M. Boghaei
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Biological Sciences
Chemistry
Earth and Environmental Sciences
Molecular Biology
Cell Biology
Biochemistry
Biophysics

description: Reaction of the binucleating S-protected ligand precursors 2-(N,N-dimethylthiocarbamato)-5-methylisophthalaldehyde di-2’-hydroxy anil (I) and 2-(N,N-dimethylthiocarbamato)-5-methylisophthalaldehyde di-2’-hydroxy 5’-methyl anil (II) with nickel(II) acetate tetrahydrate in the presence of pyrazole afforded the binuclear nickel(II) complexes [LINi2(pz)] (1) and [LIINi2(pz)] (2), respectively. The complexes have been characterized by routine physicochemical studies as well as by X-ray single crystal structure analysis. In both complexes, Ni(II) ions are doubly bridged by the thiophenolic sulfur of the pentadentate Schiff base ligand and a pyrazolate group. Efficient protocols for the oxidation of sulfides to sulfoxides with high selectivities, catalyzed by binuclear μ-thiophenolato-μ-pyrazolatonickel(II) in the presence of urea hydrogen peroxide (UHP) were explored. We obtained predominantly the monooxygenated product. The resulting products are obtained in good to excellent yields within a reasonable time.
Testing an entropy estimator related to the dynamical state of galaxy clusters
Creators: name: Zúniga, J. M.
name: Caretta, C. A.
name: González, A. P.
name: García-Manzanárez, E.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Information Theory (cs.IT)
subject: Dynamical Systems (math.DS)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We propose the entropy estimator $H_Z$, calculated from global dynamical parameters, in an attempt to capture the degree of evolution of galaxy systems. We assume that the observed (spatial and velocity) distributions of member galaxies in these systems evolve over time towards states of higher dynamical relaxation (higher entropy), becoming more random and homogeneous in virial equilibrium. Thus, the $H_Z$-entropy should correspond to the gravitacional assembly state of the systems. This was tested in a sample of 70 well sampled clusters in the Local Universe whose gravitational assembly state, classified from optical and X-ray analysis of substructures, shows clear statistical correlation with $H_Z$. This estimator was also tested on a sample of clusters (halos) from the IllustrisTNG simulations, obtaining results in agreement with the observational ones.
description: 24 pages, 9 figures and 4 tables
Pliny's Correspondence and the Acts of the Apostles: An Intertextual Relationship?
Creators: name: Bilby, Mark G.
Publisher: name: Zenodo
Year: 2017
Subjects: Pliny the Younger, Acts of the Apostles, Tertullus

description: The Acts of the Apostles depended on Pliny's famous correspondence with Trajan about the trials, execution, and sending of Christian citizens to Rome. Both texts share numerous, distinctive parallels: marketplace disturbances, puzzled reactions and official inquiries of government superiors, making a sacred appeal to the emperor, "Christian" as a trial insult, hesitancy about applying the "Christian" label, showing reverence to the empire and the public numina, maintaining standard trial procedures, and the depiction of defendants as crazy. Acts also mentions an opponent, Tertullus, whose cognomen is uncommon in epigraphical evidence prior to the 2nd century, but happens to be the name of Pliny's assistant and successor in Bithynia-Pontus.
Analog-antianalog isospin mixing in $^{47}$K $β^-$ decay
Creators: name: Kootte, Brian
name: Gallop, H.
name: Luktuke, C.
name: McNeil, J. C.
name: Gorelov, A.
name: Melconian, D. G.
name: Klimo, J.
name: Behr, B. M. Vargas-Calderon. J. A.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have measured the isospin mixing of the I$^π$= 1/2$^+$ E$_x$=2.599 MeV state in nearly-doubly-magic $^{47}$Ca with the isobaric analog 1/2$^+$ state of $^{47}$K. Using the TRIUMF atom trap for $β$ decay, we have measured a nonzero asymmetry of the progeny $^{47}$Ca with respect to the initial $^{47}$K spin polarization, which together with the $β$ asymmetry implies a nonzero ratio of Fermi to Gamow-Teller matrix elements $y$= 0.098$\pm$0.037 for the $1/2^+ \rightarrow 1/2^+$ transition. Interpreting $y$ as mixing between this state and the isobaric analog state implies a Coulomb matrix element magnitude 101 $\pm$ 37 keV. This relatively large matrix element supports a model from the literature of analog-antianalog isospin mixing, which predicts large matrix elements in cases involving excess neutrons over protons occupying more than one major shell. The result supports pursuing a search for time-reversal odd, parity-even, isovector interactions using a correlation in $^{47}$K $β$ decay.
description: 7 (two-column) pages, 7 figures. Reprint of version accepted by Physical Review C Letters May 3, 2024 (proof corrections included, except we retain non-Letter features: section headers; \frac in inline equations; untruncated reference authors)
Sediment phosphorus forms and levels in two tropical floodplain wetlands
Creators: name: Srikanta Samanta
name: Debashri Debnath
name: Nilanjan Maitra
name: Moumita Banerjee
name: Atalanta Narayan Chowdhury
name: Sharma, Anil Prakash
name: Sanjib Kumar Manna
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Molecular Biology
subject: Cell Biology
subject: Biochemistry

description: Inorganic phosphorus (P) is one of the critical nutrients determining trophic state and freshwater productivity. Sediment may act as a sink or source of P to the overlying water depending on its pH, redox state, various forms of P present, etc. To examine potential sorption or mobilization of sediment P in floodplain wetlands, the amount and distribution of P fractions were evaluated using a sequential chemical extraction procedure. Exceedingly high levels of total P (mean: 6040 ± 344, 5470 ± 363 mg kg−1), consisting largely of organic and refractory fraction (70 – 98%), followed by Ca-P (mean: 584 ± 31.3, 143 ± 8.42 mg kg−1) and Fe-P (mean: 108 ± 10.1, 91.0 ± 7.68 mg kg−1) were recorded respectively in Bhomra and Akaipur wetlands of West Bengal, India. The inorganic P, comprising the loosely sorbed P and all the mineral bound forms contributed only about 6–14% to the total P indicating their less significance in P sorption or desorption in these tropical wetlands. Although the loosely sorbed P was in moderate level (2.69 ± 0.69, 1.54 ± 0.53 mg kg−1), water dissolved P was recorded at higher concentrations (mean: 0.16 ± 0.02 mg l−1 in Akaipur and 1.08 ± 0.12 mg l−1 in Bhomra). However, the higher level of water available P was not reflected in plankton production since the dominance of weeds suppresses their growth. This study recorded large accumulation of organic matter and nutrients in the form of detritus in these wetlands which may be channelized for fish production through stocking of suitable detritivorous fishes and/or reducing macrophyte coverage that would give space and nutrients for phytoplankton growth.
A METHOD AND SYSTEM FOR PROCESSING COMPLEX NUMBERS
Creators: name: Khmelnik, Solomon
Publisher: name: Zenodo
Year: 2001
Subjects: subject: WO/2001/050332

description: The invention provides a method and apparatus for storing complex number data in formats or codes which allow efficient complex number arithmetic operations to be performed and for performing such complex number arithmetic operations. According to one aspect of the invention, a method for coding complex numbers is provided for use in a data processing system. In response to receiving an instruction, two data elements representing the real and imaginary parts of a complex number are read. These two elements are then used to generate a single code for the complex number which is stored as a single data element. As a result of this coding, arithmetic operations on complex numbers may be performed on a single data element which contains both real and imaginary data. According to another aspect of the invention, a coprocessor is described. This coprocessor has stored therein data representing sequences of instructions which, when combined with certain unique circuitry also contained therein and executed, cause the coprocessor to perform the above described method and to perform complex number arithmetic operations.
Proteomic Profiling of Serum-Derived Exosomes from Ethnically Diverse Prostate Cancer Patients
Creators: name: Turay, David
name: Khan, Salma
name: Osterman, Carlos J. Diaz
name: Curtis, Matthew P.
name: Balreet Khaira
name: Neidigh, Jonathan W.
name: Mirshahidi, Saied
name: Casiano, Carlos A.
name: Wall, Nathan R.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: Medicine
Cell Biology
Cancer

description: Prostate cancer (PCa) remains the most frequently diagnosed male malignancy in Western countries and the second most common cause of male cancer death in the United States. The relatively elevated PCa incidence and mortality among African American men makes this cancer type a challenging health disparity disease. To increase the chance for successful trea tment, earlier detection and prediction of tumor aggress iveness will be important and need to be resolved. This study demonstrates that small membrane-bound vesicles shed from the tumor called exosomes contain ethnically and tumor-specific biomarkers, and could be exploited for their diagnostic and therapeutic potential.
Cyan: A DIY small-scale open hardware direct air carbon capture (DACC) system
Creators: name: Dahl Winters
name: Wilson, David
name: Holness, Courtni
name: Kenyon, Ross
name: Uwase, Aline
name: Neidl, Chris
name: Collins, Kristina
Publisher: name: Zenodo
Year: 2024

description: The Cyan Decarbonizer v.1 is a DIY small-scale open hardware direct air carbon capture (DACC) system created by the OpenAir Collective. 

This project is not currently under development; this is an archived repository.
Proteomic Profiling of Serum-Derived Exosomes from Ethnically Diverse Prostate Cancer Patients
Creators: name: Turay, David
name: Khan, Salma
name: Osterman, Carlos J. Diaz
name: Curtis, Matthew P.
name: Balreet Khaira
name: Neidigh, Jonathan W.
name: Mirshahidi, Saied
name: Casiano, Carlos A.
name: Wall, Nathan R.
Publisher: name: Taylor & Francis
Year: 2015
Subjects: Medicine
Cell Biology
Cancer

description: Prostate cancer (PCa) remains the most frequently diagnosed male malignancy in Western countries and the second most common cause of male cancer death in the United States. The relatively elevated PCa incidence and mortality among African American men makes this cancer type a challenging health disparity disease. To increase the chance for successful trea tment, earlier detection and prediction of tumor aggress iveness will be important and need to be resolved. This study demonstrates that small membrane-bound vesicles shed from the tumor called exosomes contain ethnically and tumor-specific biomarkers, and could be exploited for their diagnostic and therapeutic potential.
Data and code related to reverse engineering WGDs in Angiosperms using an LRT framework based a the birth-death model
Creators: name: Tasdighian, Setareh
Publisher: name: Zenodo
Year: 2022

description: These are files include both the compiled code and the output files, associated with the model described in chapter four of my PhD thesis, to reverse engineer the location of WGDs on a phylogeny of angiosperms using an LRT framework built based on a previously published birth-death model. https://doi.org/10.1105/tpc.17.00313. The output files in this repository extends the results presented in the thesis, and contains new results for more gene families compared to the thesis.
description: These files will not be made publicly available and sharing will be made possible only by the approval of depositor of the original file.
Implementazione di un software di supporto per le osservazioni con lo strumento TANDEM all’Osservatorio di Loiano
Creators: name: BRUNI, IVAN
Publisher: name: OAS Bologna
Year: 2024

description: Nel 2023, presso l’Osservatorio Cassini di Loiano, e’ stato installato lo strumento TANDEM (Telescope Array eNabling DEbries Monitoring, https://www.oas.inaf.it/it/progetti/tandem-it/ ), realizzato da ADS (https://www.ads-int.com/astronomy) e pensato principalmente per eseguire osservazioni di supporto nell’ambito delle attivita’ europee di sorveglianza spaziale (https://www.eusst.eu/). Questo strumento condivide la montatura equatoriale inglese e sfrutta il movimento in angolo orario del telescopio Cassini, mentre utilizza dei propri attuatori per gli spostamenti in declinazione. Avendo sistemi di controllo diversi tra loro, i due strumenti sono per il momento indipendenti. In questo rapporto tecnico descrivo brevemente l’implementazione ed i principali comandi di funzionamento di una nuova interfaccia utente, utile per ottimizzare le osservazioni notturne, con cui il TANDEM ed il Cassini possono operare in concerto.
Culture and molecular identification of fungal contaminants in edible bird nests
Creators: name: Chen, Jennifer Xiao Jing
name: Shew Fung Wong
name: Lim, Patricia Kim Chooi
name: Mak, Joon Wah
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Science Policy
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Earth and Environmental Sciences
subject: Microbiology

description: Widespread food poisoning due to microbial contamination has been a major concern for the food industry, consumers and governing authorities. This study is designed to determine the levels of fungal contamination in edible bird nests (EBNs) using culture and molecular techniques. Raw EBNs were collected from five house farms, and commercial EBNs were purchased from five Chinese traditional medicine shops (companies A–E) in Peninsular Malaysia. The fungal contents in the raw and commercial EBNs, and boiled and unboiled EBNs were determined. Culturable fungi were isolated and identified. In this study, the use of these methods revealed that all EBNs had fungal colony-forming units (CFUs) that exceeded the limit set by Standards and Industrial Research Institute of Malaysia (SIRIM) for yeast and moulds in EBNs. There was a significant difference (p p > 0.05). The types of fungi isolated from the unboiled raw EBNs were mainly soil, plant and environmental fungi, while the types of fungi isolated from the boiled raw EBNs, unboiled and boiled commercial EBNs were mainly environmental fungi. Aspergillus sp., Candida sp., Cladosporium sp., Neurospora sp. and Penicillum sp. were the most common fungi isolated from the unboiled and boiled raw and commercial EBNs. Some of these fungi are mycotoxin producers and cause opportunistic infections in humans. Further studies to determine the mycotoxin levels and methods to prevent or remove these contaminations from EBNs for safe consumption are necessary. The establishment and implementation of stringent regulations for the standards of EBNs should be regularly updated and monitored to improve the quality of the EBNs and consumer safety.
High variations of the thebaine concentrations in Iranian poppy (Papaver bracteatum Lindl.) from various regions in Iran
Creators: name: Yahyazadeh, Mahdi
name: Rahimifard, Mahshid
name: Hadi, Najmeh
name: Shirazi, Zahra
name: Asadi-Sanam, Samaneh
name: Azimi, Razieh
name: Ajani, Yousef
name: Makizadeh, Maryam
name: Moradi, Aiuob
name: Bidarlord, Mahmood
name: Larti, Mozhgan
name: Fakhr-Ranjbari, Hamideh
name: Valizadeh, Negar
name: Amini, Taiebeh
name: Selmar, Dirk
Publisher: name: Journal of Applied Botany and Food Quality
Year: 2024

description: This paper aims to contribute reliable information to promote the pharmacological utilization of Papaver bracteatum by analyzing its
wild population in Iran. For this purpose, 27 Iranian poppy specimens from 7 provinces of Iran were analyzed. The highest thebaine concentrations were detected in the capsules, whereas they were relatively lower in the flowering stems. Maximal concentration (more than 53 mg/g d.w.) was present in the P. bracteatum plant capsules growing in the Zanus region of Mazandaran province. Surprisingly, the thebaine concentration varies drastically excessively among the tested specimens, ranging from 5 to more than 53 mg/g d.w. Up to now, it is not known whether these drastic differences are due to clonal variations or the differences in the growth conditions, e.g., due to different stress levels of the plants. There is no doubt that the Iranian poppy represents an important alternative source for thebaine, yet, further studies and research are required to promote the farming of this auspicious pharmaceutical plant. In this context, it is of special interest to elucidate the effects of potential genotypes, the impact of the growing conditions as well as seasonal effects.
description: Journal of Applied Botany and Food Quality, Vol. 97 (2024): Journal of Applied Botany and Food Quality
Chemical components and biological properties from acetone extracts of Conamomum vietnamense
Creators: name: Pham, Tan Viet
name: Quoc, Le Pham Tan
name: Nguyen, My Phuong
name: Nguyen, Hong Ngoc
name: Nguyen, Quoc Hung
name: Le, Thanh Tho
name: Nguyen, Van Hop
name: Van, Hong Thien
Publisher: name: Journal of Applied Botany and Food Quality
Year: 2024

description: Conamomum vietnamense is an endemic and rare species from Vietnam. The aim of this study is to determine the chemical compositions, antibacterial and antioxidant properties of the acetone extracts obtained from the different organs of this species for the first time. A total of 82 components were identified from the acetone extracts of leaf, flower, and rhizome of C. vietnamense using Gas chromatography–mass spectrometry (GC/MS) technique. Furthermore, the agar disk-diffusion method was also used to determine the antibacterial activity of the C. vietnamense extracts. Accordingly, the leaf extract was found to be effective against eight out of nine bacterial strains while the flower and rhizome extracts displayed activity against four out of nine tested bacteria. In addition, the three organs of C. vietnamense also possessed the high DPPH scavenging properties. The results of this study indicate that C. vietnamense extracts have the potential to be developed into pharmaceutical products in the future.
description: Journal of Applied Botany and Food Quality, Vol. 97 (2024): Journal of Applied Botany and Food Quality
Sick leave and disability pension among Swedish testicular cancer survivors according to clinical stage and treatment
Creators: name: Sven-Erik Olofsson
name: Jerkeman, Mats
name: Smedby, Karin E.
name: Nord, Carina
name: Glimelius, Ingrid
name: Cedermark, Gabriella Cohn
name: Ekberg, Sara
name: Cavallin-Ståhl, Eva
name: Neovius, Martin
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Hematology
subject: Cancer
subject: Biological Sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biotechnology
subject: Medicine

description: Purpose. To investigate if testicular cancer survivors (TCSs) have a higher incidence of work loss compared with the population, accounting for stage, treatment and relapse.Material and methods. A cohort of 2146 Swedish TCSs diagnosed 1995–2007 (seminoma n = 926, non-seminoma n = 1220) was identified in the SWENOTECA (Swedish-Norwegian Testicular Cancer Group) register, and matched 1:4 to population comparators. Prospectively recorded work loss data (both before and after diagnosis) were obtained from national registers through September 2013. Adjusted relative risks (RR) and 95% confidence intervals (CI) of sick leave and/or disability pension were calculated annually and overall with Poisson- and Cox regression, censoring at relapse. The mean number of annual work days lost was also estimated.Results. TCSs were at a modestly increased annual risk of work loss up to the third year of follow-up (RR3rd year 1.25, 95% CI 1.08, 1.43), attributed to a more pronounced risk among extensively treated patients (4 chemotherapy courses: RR3rd year 1.60, 95% CI 1.19, 2.15; > 4 courses: RR3rd year 3.70, 95% CI 2.25, 6.11). Patients on surveillance or limited treatment (radiotherapy, 1–3 chemotherapy courses) did not have an increased risk of work loss beyond the first year. TCSs receiving > 4 chemotherapy courses had higher mean number of annual days of work loss up to the 10th year post-diagnosis, and a five-fold risk of disability pension (RR 5.16, 95% CI 2.00, 10.3).Conclusion. Extensively treated TCSs, but not those on surveillance or limited treatment, are at increased risk of work loss long-term, not explained by relapse. These patients may benefit from early rehabilitation initiatives.
CMax-SLAM: Event-based Rotational-Motion Bundle Adjustment and SLAM System using Contrast Maximization
Creators: name: Guo, Shuang
name: Gallego, Guillermo
Publisher: name: arXiv
Year: 2024
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Event cameras are bio-inspired visual sensors that capture pixel-wise intensity changes and output asynchronous event streams. They show great potential over conventional cameras to handle challenging scenarios in robotics and computer vision, such as high-speed and high dynamic range. This paper considers the problem of rotational motion estimation using event cameras. Several event-based rotation estimation methods have been developed in the past decade, but their performance has not been evaluated and compared under unified criteria yet. In addition, these prior works do not consider a global refinement step. To this end, we conduct a systematic study of this problem with two objectives in mind: summarizing previous works and presenting our own solution. First, we compare prior works both theoretically and experimentally. Second, we propose the first event-based rotation-only bundle adjustment (BA) approach. We formulate it leveraging the state-of-the-art Contrast Maximization (CMax) framework, which is principled and avoids the need to convert events into frames. Third, we use the proposed BA to build CMax-SLAM, the first event-based rotation-only SLAM system comprising a front-end and a back-end. Our BA is able to run both offline (trajectory smoothing) and online (CMax-SLAM back-end). To demonstrate the performance and versatility of our method, we present comprehensive experiments on synthetic and real-world datasets, including indoor, outdoor and space scenarios. We discuss the pitfalls of real-world evaluation and propose a proxy for the reprojection error as the figure of merit to evaluate event-based rotation BA methods. We release the source code and novel data sequences to benefit the community. We hope this work leads to a better understanding and fosters further research on event-based ego-motion estimation. Project page: https://github.com/tub-rip/cmax_slam
description: 22 pages, 20 figures, 8 tables. https://github.com/tub-rip/cmax_slam
Designs for adding a treatment arm to an ongoing clinical trial.
Creators: name: Bennett, Maxine
name: Mander, Adrian P
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Optimal allocation
Multiple Testing
Adaptive Design
Adding A Treatment Arm
Family-wise Error Rate Control

description: BACKGROUND:For many disease areas, there are often treatments in different stages of the development process. We consider the design of a two-arm parallel group trial where it is planned to add a new experimental treatment arm during the trial. This could potentially save money, patients, time and resources; however, the addition of a treatment arm creates a multiple comparison problem. Current practice in trials when a new treatment arm has been added is to compare the new treatment only to controls randomised concurrently, and this is the setting we consider here. Furthermore, for standard multi-arm trials, optimal allocation randomises a larger number of patients to the control arm than to each experimental treatment arm. METHODS:In this paper we propose an adaptive design, the aim of which is to adapt the sample size of the trial when the new treatment arm is added to control the family-wise error rate (FWER) in the strong sense, whilst maintaining the marginal power of each treatment-to-control comparison at the level of the original study. We explore optimal allocation for designs where a treatment arm is added with the aim of increasing the overall power of the study, where we define the overall power to be the probability of detecting all treatments that are better than the control. RESULTS AND CONCLUSIONS:An increase in sample size is required to maintain the marginal power for each pairwise comparison when adding a treatment arm if control of the FWER is required at the level of the type I error in the original study. When control of the FWER is required in a single trial which adds an additional experimental treatment arm, but control of the FWER is not required in separate trials, depending on the design characteristics, it may be better to run a separate trial for each experimental treatment, in terms of the number of patients required. An increase in overall power can be achieved when optimal allocation is used once a treatment arm has been added to the trial, rather than continuing with equal allocation to all treatment arms.
Transposon age and non-CG methylation.
Creators: name: Wang, Zhengming
name: Baulcombe, David C
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020

description: Silencing of transposable elements (TEs) is established by small RNA-directed DNA methylation (RdDM). Maintenance of silencing is then based on a combination of RdDM and RNA-independent mechanisms involving DNA methyltransferase MET1 and chromodomain DNA methyltransferases (CMTs). Involvement of RdDM, according to this model should decrease with TE age but here we show a different pattern in tomato and Arabidopsis. In these species the CMTs silence long terminal repeat (LTR) transposons in the distal chromatin that are younger than those affected by RdDM. To account for these findings we propose that, after establishment of primary RdDM as in the original model, there is an RNA-independent maintenance phase involving CMTs followed by secondary RdDM. This progression of epigenetic silencing in the gene-rich distal chromatin is likely to influence the transcriptome either in cis or in trans depending on whether the mechanisms are RNA-dependent or -independent.