cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Zero noise extrapolation on logical qubits by scaling the error correction code distance
Creators: name: Wahl, Misty A.
name: Mari, Andrea
name: Shammah, Nathan
name: Zeng, William J.
name: Ravi, Gokul Subramanian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this work, we migrate the quantum error mitigation technique of Zero-Noise Extrapolation (ZNE) to fault-tolerant quantum computing. We employ ZNE on logically encoded qubits rather than physical qubits. This approach will be useful in a regime where quantum error correction (QEC) is implementable but the number of qubits available for QEC is limited. Apart from illustrating the utility of a traditional ZNE approach (circuit-level unitary folding) for the QEC regime, we propose a novel noise scaling ZNE method specifically tailored to QEC: distance scaled ZNE (DS-ZNE). DS-ZNE scales the distance of the error correction code, and thereby the resulting logical error rate, and utilizes this code distance as the scaling `knob' for ZNE. Logical qubit error rates are scaled until the maximum achievable code distance for a fixed number of physical qubits, and lower error rates (i.e., effectively higher code distances) are achieved via extrapolation techniques migrated from traditional ZNE. Furthermore, to maximize physical qubit utilization over the ZNE experiments, logical executions at code distances lower than the maximum allowed by the physical qubits on the quantum device are parallelized to optimize device utilization. We validate our proposal with numerical simulation and confirm that ZNE lowers the logical error rates and increases the effective code distance beyond the physical capability of the quantum device. For instance, at a physical code distance of 11, the DS-ZNE effective code distance is 17, and at a physical code distance of 13, the DS-ZNE effective code distance is 21. When the proposed technique is compared against unitary folding ZNE under the constraint of a fixed number of executions of the quantum device, DS-ZNE outperforms unitary folding by up to 92% in terms of the post-ZNE logical error rate.
description: 10 pages, 7 figures
New draft item
Creators: name: Conlon, Michael
name: Castro, Alexander Garcia
Publisher: name: figshare
Year: 2016
Subjects: subject: Information Systems
subject: FOS: Computer and information sciences
subject: Library and Information Studies
subject: FOS: Media and communications

description: Application for the 2016 Open Science Prize
Lycosa praegrandis C. L. Koch 1836
Creators: name: Hosseinpour, Amin
name: Zamani, Alireza
name: Azizi, Kourosh
name: Moemenbellah-Fard, Mohammad Djaefar
name: Soltani, Aboozar
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Lycosidae
Lycosa
Lycosa praegrandis

description: Lycosa praegrandis C. L. Koch, 1836
 Material: 3♂ 1sub ♂, Rahmali, 30°79ʹ05ʺN, 51°38ʹ98ʺE, May 2016.
 Iranian provinces: Alborz, Golestan, Ilam, Khuzestan, Razavi Khorasan, Mazandaran, and Tehran. First report in Kohgiluyeh & Boyer-Ahmad.
 Distribution: Albania, Macedonia, Bulgaria, Greece, Turkey, Ukraine, Russia (Europe), Caucasus, Iran, Kazakhstan, Central Asia.
description: Published as part of Hosseinpour, Amin, Zamani, Alireza, Azizi, Kourosh, Moemenbellah-Fard, Mohammad Djaefar & Soltani, Aboozar, 2019, Survey of spiders (Arachnida: Araneae) in southwestern Iran, with new records, pp. 204-213 in Ecologica Montenegrina 22 on page 208, DOI: 10.37828/em.2019.22.16, http://zenodo.org/record/12716235
Thanatus formicinus
Creators: name: Hosseinpour, Amin
name: Zamani, Alireza
name: Azizi, Kourosh
name: Moemenbellah-Fard, Mohammad Djaefar
name: Soltani, Aboozar
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Philodromidae
Thanatus
Thanatus formicinus

description: Thanatus formicinus (Clerck, 1757)
 Material: 1♀, Sarasiyab, 31°03ʹ63ʺN, 50°21ʹ82ʺE, April 2017; 1♀, Semeron, 30°93ʹ05ʺN, 51°28ʹ67ʺE, May 2017.
 Iranian provinces: Fars, Golestan, Isfahan, North Khorasan (?), Razavi Khorasan, Tehran. First report in Kohgiluyeh & Boyer-Ahmad.
 Distribution: North America, Europe, North Africa, Turkey, Caucasus, Russia (Europe to Far East), Iran, Kazakhstan, Central Asia, China, Japan.
description: Published as part of Hosseinpour, Amin, Zamani, Alireza, Azizi, Kourosh, Moemenbellah-Fard, Mohammad Djaefar & Soltani, Aboozar, 2019, Survey of spiders (Arachnida: Araneae) in southwestern Iran, with new records, pp. 204-213 in Ecologica Montenegrina 22 on page 209, DOI: 10.37828/em.2019.22.16, http://zenodo.org/record/12716235
Thanatus vulgaris Simon 1870
Creators: name: Hosseinpour, Amin
name: Zamani, Alireza
name: Azizi, Kourosh
name: Moemenbellah-Fard, Mohammad Djaefar
name: Soltani, Aboozar
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Philodromidae
Thanatus
Thanatus vulgaris

description: Thanatus vulgaris Simon, 1870
 Material: 1♀, Vezg, 30°54ʹ25ʺN, 51°65ʹ81ʺE, July 2016.
 Iranian provinces: Alborz, Fars, Golestan, Hormozgan, Ilam, Isfahan, Kermanshah, Mazandaran, Khuzestan, Qazvin, Tehran, Zanjan. First report in Kohgiluyeh & Boyer-Ahmad.
 Distribution: North America, Europe, North Africa, Turkey, Israel, Caucasus, Russia (Europe to Far East), Iran, Kazakhstan, Central Asia, China, Korea.
 Pholcidae C. L. Koch, 1850
  Artema doriae (Thorell, 1881)
 Material: 1♀ 1j, Chenarestan, 30°63ʹ44ʺN, 51°55ʹ05ʺE, March 2017; 1♀, Chenarestan, 30°63ʹ44ʺN, 51°55ʹ05ʺE, September 2016; 1j, Chenarestan, 30°63ʹ44ʺN, 51°55ʹ05ʺE, July 2016; 1♀, Chaharbisheh- e Sofla, 30°42ʹ47ʺN, 50°70ʹ37ʺE, June 2016; 1♂, Ab- Nahr, 30°69ʹ48ʺN, 51°68ʹ83ʺE, August 2016; 1♀, Yasuj, 30°65ʹ05ʺN, 51°60ʹ25ʺE, April 2016; 1♀ 1j, Morderaz, 30°61ʹ11ʺN, 51°55ʹ53ʺE, September 2016.
 Iranian provinces: Alborz, Fars, Hamedan, Isfahan, Kerman, Kermanshah, Khuzestan, Kohgiluyeh & Boyer-Ahmad, Lorestan, Mazandaran, Razavi Khorasan, Semnan, Tehran, Yazd, and Zanjan.
 Distribution: Turkey, Israel, United Arab Emirates, Iran, Afghanistan. Introduced to Japan.
 Salticidae Blackwall, 1841
  Chalcoscirtus cf. lepidus Wesołowska, 1996
 Identification: Wesołowska (1996)
 Material: 1♀, Sarasiyab, 31°03ʹ63ʺN, 50°21ʹ82ʺE, May 2017.
 Iranian provinces: Tehran. First report in Kohgiluyeh & Boyer-Ahmad but shall be considered as provisional until confirmation with collection of males.
 Distribution: Central Asia, Iran.
description: Published as part of Hosseinpour, Amin, Zamani, Alireza, Azizi, Kourosh, Moemenbellah-Fard, Mohammad Djaefar & Soltani, Aboozar, 2019, Survey of spiders (Arachnida: Araneae) in southwestern Iran, with new records, pp. 204-213 in Ecologica Montenegrina 22 on pages 209-210, DOI: 10.37828/em.2019.22.16, http://zenodo.org/record/12716235
Magnesium recovery from brines using exopolymeric substances of sulfate-reducing bacteria
Creators: name: Abdul-Matiin Wan
name: Mansoor, Bilal
name: Ahmad, Farrukh
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Cell Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Cancer
subject: Inorganic Chemistry

description: Magnesium recovery from brines was studied ex situ under sulfate-reducing conditions and in the presence of active cells and exopolymeric substances (EPS) using an innovative experimental approach. EPS was extracted and a mixed sulfate-reducing inoculum was enriched from dolomitizing coastal microbial mats. The inoculum tested positive for the presence of the Desulfovibrio brasiliensis, the organism associated with biogenic dolomitization, using denaturing gradient gel electrophoresis. Cultures were incubated within dialysis tubes, together with TEM grids that provided an imaging-ready substratum for biofilm growth and mineral precipitation. The anaerobic incubations lasted 16 d under a continually increasing bulk solution magnesium ion concentration. The following reactor configurations were incubated: (A) bacteria-only, (B) bacteria + pre-extracted EPS, (C) pre-extracted EPS-only, and (D) control. The TEM grids were recovered for analysis using spot, line transect, and areal SEM–energy-dispersive X-ray analysis for elemental comparison of deposits. Pre-extracted EPS-bearing cultures, both with and without bacterial inoculum, induced surface-associated magnesium recovery in 16 d. Overall, magnesium recovery in the EPS-only system was 2.2x (line transect) to 1.5x (areal) greater than the bacteria + EPS system, while the bacteria-only (de novo EPS only) and control (no EPS) reactors displayed no surface-associated magnesium recovery. Analysis of microstructures within the bacteria + pre-extracted EPS system revealed variations in the Mg:Ca ratios, ranging from 19.9 to 61.9% (spot analysis) over different deposit morphologies, suggesting a dynamic biologically mediated mineralization process for magnesium recovery from brines requiring further investigation.
Inverse scattering of periodic surfaces with a superlens
Creators: name: Li, Peijun
name: Wang, Yuliang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We propose a scheme for imaging periodic surfaces using a superlens. By employing an inverse scattering model and the transformed field expansion method, we derive an approximate reconstruction formula for the surface profile, assuming small amplitude. This formula suggests that unlimited resolution can be achieved for the linearized inverse problem with perfectly matched parameters. Our method requires only a single incident wave at a fixed frequency and can be efficiently implemented using fast Fourier transform. Through numerical experiments, we demonstrate that our method achieves resolution significantly surpassing the resolution limit for both smooth and non-smooth surface profiles with either perfect or marginally imperfect parameters.
description: 17 pages, 6 figures
Effects of novel acylhydrazones derived from 4-quinolone on the acetylcholinesterase activity and Aβ42 peptide fibrils formation
Creators: name: Gisele S. Da Silva
name: Micheli Figueiró
name: Tormena, Claudio F.
name: Coelho, Fernando
name: Almeida, Wanda P
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 60506 Virology
subject: FOS: Biological sciences

description: Acetylcholinesterase inhibitors and compounds that trigger Aβ amyloid oligomerization and fibrillization represent an opportunity to discover new drug candidates to treat Alzheimer’s disease. In this work, we synthesized nine new acylhydrazones and a known one, both employing 3-carboethoxy-4-quinolone derivatives as starting materials with chemical yields ranging from 63% to 90%. We evaluated the effect of these compounds on the acetylcholinesterase (AChE) activity and the fibrillization of Aβ42 peptide. Except for one acylhydrazone, the compounds exhibited good inhibitory effect on AChE (1.2 μM 50 values 42 fibril formation.
Spectrogram correlated stacking: A novel time-frequency domain analysis of the Stochastic Gravitational Wave Background
Creators: name: Dey, Ramit
name: Micchi, Luís Felipe Longo
name: Mukherjee, Suvodip
name: Afshordi, Niayesh
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The astrophysical stochastic gravitational wave background (SGWB) originates from numerous faint sub-threshold gravitational wave (GW) signals arising from the coalescing binary compact objects. This background is expected to be discovered from the current (or next-generation) network of GW detectors by cross-correlating the signal between multiple pairs of GW detectors. However, detecting this signal is challenging and the correlation is only detectable at low frequencies due to the arrival time delay between different detectors. In this work, we propose a novel technique, \texttt{Spectrogram Correlated Stacking} (or \texttt{SpeCs}), which goes beyond the usual cross-correlation (and to higher frequencies) by exploiting the higher-order statistics in the time-frequency domain which accounts for the \textit{chirping} nature of the individual events that comprise SGWB. We show that \texttt{SpeCs} improves the signal-to-noise for the detection of SGWB by a factor close to $8$, compared to standard optimal cross-correlation methods which are tuned to measure only the power spectrum of the SGWB signal.\texttt{SpeCs} can probe beyond the power spectrum and its application to the GW data available from the current and next-generation GW detectors would speed up the SGWB discovery.
description: published version
The Indispensable Soma Hypothesis
Creators: name: Kyriazis, Marios
Publisher: name: figshare
Year: 2017
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Medicine
subject: Theoretical Computer Science

description: A draft, describing the biological mechanisms of the Indispensable Soma Hypothesis and the soma vs germline conflict for resources.
Preferential binding of unsaturated hydrocarbons in aryl-bisimidazolium·cucurbit[8]uril complexes furbishes evidence for small-molecule π-π interactions.
Creators: name: Barrow, Steven J
name: Assaf, Khaleel I
name: Palma, Aniello
name: Nau, Werner M
name: Scherman, Oren A
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019

description: Whilst cucurbit[n]urils (CBn) have been utilized in gas encapsulation, only the smaller CBn (n = 5 and 6) have utility given their small cavity size. In this work, we demonstrate that the large cavity of CB8 can be tailored for gaseous and volatile hydrocarbon encapsulation by restricting its internal cavity size with auxiliary aryl-bisimidazolium (Bis, aryl = phenyl, naphthyl, and biphenyl) guests. The binding constants for light hydrocarbons (C ≤ 4) are similar to those measured with CB6, while larger values are obtained with Bis·CB8 for larger guests. A clear propensity for higher affinities of alkenes relative to alkanes is observed, most pronounced with the largest delocalized naphthalene residue in the auxiliary Bis guest, which provides unique evidence for sizable small-molecule π-π interactions.
QFT with Tensorial and Local Degrees of Freedom: Phase Structure from Functional Renormalization
Creators: name: Geloun, Joseph Ben
name: Pithis, Andreas G. A.
name: Thürigen, Johannes
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Field theories with combinatorial non-local interactions such as tensor invariants are interesting candidates for describing a phase transition from discrete quantum-gravitational to continuum geometry. In the so-called cyclic-melonic potential approximation of a tensorial field theory on the $r$-dimensional torus it was recently shown using functional renormalization group techniques that no such phase transition to a condensate phase with a tentative continuum geometric interpretation is possible. Here, keeping the same approximation, we show how to overcome this limitation amending the theory by local degrees freedom on $\mathbb{R}^d$. We find that the effective $r-1$ dimensions of the torus part dynamically vanish along the renormalization group flow while the $d$ local dimensions persist up to small momentum scales. Consequently, for $d>2$ one can find a phase structure allowing also for phase transitions.
description: 25+4 pages, 5 figures
Philaeus chrysops
Creators: name: Hosseinpour, Amin
name: Zamani, Alireza
name: Azizi, Kourosh
name: Moemenbellah-Fard, Mohammad Djaefar
name: Soltani, Aboozar
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Philaeus
Philaeus chrysops

description: Philaeus chrysops (Poda, 1761)
 Material: 1♂, Park- e Jangali, 30°24ʹ27ʺN, 51°21ʹ24ʺE, April 2016; 1♂, Lama, 31°04ʹ78ʺN, 51°21ʹ71ʺE, May 2017.
 Iranian provinces: Alborz, Chaharmahal & Bakhtiari, Fars, Golestan, Ilam, Isfahan, Kermanshah, Khuzestan, Kohgiluyeh & Boyer-Ahmad, Kurdistan, Lorestan, Markazi, Mazandaran, Qom, Razavi Khorasan, Semnan, Tehran, and Zanjan.
 Distribution: Europe, North Africa to Middle East, Turkey, Caucasus, Russia (Europe to Far East), Iran, Central Asia, Afghanistan, China, Mongolia, Korea.
description: Published as part of Hosseinpour, Amin, Zamani, Alireza, Azizi, Kourosh, Moemenbellah-Fard, Mohammad Djaefar & Soltani, Aboozar, 2019, Survey of spiders (Arachnida: Araneae) in southwestern Iran, with new records, pp. 204-213 in Ecologica Montenegrina 22 on page 210, DOI: 10.37828/em.2019.22.16, http://zenodo.org/record/12716235
Eggshell geochemistry reveals ancestral metabolic thermoregulation in Dinosauria.
Creators: name: Dawson, Robin R
name: Field, Daniel J
name: Hull, Pincelli M
name: Zelenitsky, Darla K
name: Therrien, François
name: Affek, Hagit P
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020

description: Studying the origin of avian thermoregulation is complicated by a lack of reliable methods for measuring body temperatures in extinct dinosaurs. Evidence from bone histology and stableisotopes often relies on uncertain assumptions about the relationship between growth rate and body temperature, or the isotopic composition (δ18O) of body water. Clumped isotope (Δ47) paleothermometry, based on binding of 13C to 18O, provides a more robust tool, but has yet to be applied across a broad phylogenetic range of dinosaurs while accounting for paleoenvironmental conditions. Applying this method to well-preserved fossil eggshells demonstrates that the three major clades of dinosaurs, Ornithischia, Sauropodomorpha, and Theropoda, were characterized by warm body temperatures. Dwarf titanosaurs may have exhibited similar body temperatures to larger sauropods, although this conclusion isprovisional, given current uncertainties in taxonomic assignment of dwarf titanosaur eggshell. Our results nevertheless reveal that metabolically controlled thermoregulation was the ancestral condition for Dinosauria.
Salticus tricinctus
Creators: name: Hosseinpour, Amin
name: Zamani, Alireza
name: Azizi, Kourosh
name: Moemenbellah-Fard, Mohammad Djaefar
name: Soltani, Aboozar
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Salticus
Salticus tricinctus

description: Salticus tricinctus (C. L. Koch, 1846)
 Material: 1♀, Lama, 31°04ʹ78ʺN, 51°21ʹ71ʺE, May 2017; 7♂ 1♀, Deh Baraftab, 30°77ʹ47ʺN, 51°51ʹ42ʺE, May 2017.
 Iranian provinces: Fars, Lorestan, Mazandaran, Razavi Khorasan, and Tehran. First report in Kohgiluyeh & Boyer-Ahmad.
 Distribution: Mediterranean to Central Asia.
 Tetragnathidae Menge, 1866
  Tetragnatha extensa (Linnaeus, 1785)
 Material: 3♀, Bahr- e Ana, 30°38ʹ41ʺN, 51°28ʹ09ʺE, September 2016.
 Iranian provinces: Ardabil, East or West Azerbaijan, Gilan, Golestan, Kerman, Kohgiluyeh & Boyer-Ahmad, Mazandaran, North Khorasan (?), Qazvin, and Razavi Khorasan (?).
 Distribution: North America, Greenland, Europe, Turkey, Caucasus, Iraq, Iran, Russia (Europe to Far East), temperate Asia including China, Korea, Japan.
 Theridiidae Sundevall, 1833
  Enoplognatha macrochelis Levy & Amitai, 1981
 Material: 1♀, Baba Kalan, 30°11ʹ42ʺN, 50°82ʹ05ʺE, April 2017; 1♀, Sarasiyab, 31°03ʹ63ʺN, 50°21ʹ82ʺE, May 2017.
 Distribution: Macedonia, Greece, Turkey, Cyprus, Israel, Azerbaijan. First record for Iran, representing the southeasternmost locality in its known distribution.
description: Published as part of Hosseinpour, Amin, Zamani, Alireza, Azizi, Kourosh, Moemenbellah-Fard, Mohammad Djaefar & Soltani, Aboozar, 2019, Survey of spiders (Arachnida: Araneae) in southwestern Iran, with new records, pp. 204-213 in Ecologica Montenegrina 22 on page 210, DOI: 10.37828/em.2019.22.16, http://zenodo.org/record/12716235
Protecting Hilbert space fragmentation through quantum Zeno dynamics
Creators: name: Patil, Pranay
name: Singhania, Ayushi
name: Halimeh, Jad C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Hilbert space fragmentation is an intriguing paradigm of ergodicity breaking in interacting quantum many-body systems with applications to quantum information technology, but it is usually adversely compromised in the presence of perturbations. In this work, we demonstrate the protection of constrained dynamics arising due to a combination of mirror symmetry and Hilbert space fragmentation by employing the concept of quantum Zeno dynamics. We focus on an Ising spin ladder with carefully chosen quantum fluctuations, which in the ideal case guarantee a perfect disentanglement under Hamiltonian dynamics for a large class of initial conditions. This is known to be a consequence of the interplay of Hilbert space fragmentation with a mirror symmetry, and we show numerically the effect of breaking the latter. To evince the power of this perfect disentanglement, we study the effect of generic perturbations around the fine-tuned model, and show that we can protect against the undesirable growth of entanglement entropy by using a local Ising interaction on the rungs of the ladder. This allows us to suppress the entanglement entropy to an \textit{arbitrarily} small value for an \textit{arbitrarily} long time by controlling the strength of the rung interaction. Our work demonstrates the experimentally feasible viability of quantum Zeno dynamics in the protection of quantum information against thermalization.
description: 11 pages, 12 figures
In vitro and ex vivo antitubercular activity of diarylheptanoids from the rhizomes of Alpinia officinarum Hance
Creators: name: Honmore, Varsha S.
name: Supada R. Rojatkar
name: Laxman U. Nawale
name: Arkile, Manisha A.
name: Khedkar, Vijay M.
name: Natu, Arun D.
name: Dhiman Sarkar
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
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: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Phytochemical investigation of methanol extract of the rhizomes of Alpinia officinarum Hance afforded four known diarylheptanoids 1,7-diphenylhept-4-en-3-one (1), 5-hydroxy-1,7-diphenyl-3-heptanone (2), 5-hydroxy-7-(4″-hydroxy-3″-methoxyphenyl)-1-phenyl-3-heptanone (3), and 7-(4″-hydroxy-3″-methoxyphenyl)-1-phenyl heptan-3-one (4).The acetate derivative of (4), 7-(4″-actetate-3″-methoxy phenyl)-1-phenyl heptan-3-one (5), was prepared. These diarylheptanoids exhibited promising in vitro and ex vivo antitubercular activity for the first time against dormant Mycobacterium tuberculosis H37Ra with the IC50 values between 0.34–47.69 and 0.13–22.91 μM, respectively. All compounds showed comparable activity against Mycobacterium bovis BCG (dormant phage) and did not show any activity against two gram + ve and two gram –ve bacterial strains. These compounds were also weakly cytotoxic up to 300 μM against three human cancer cell lines THP-1, Panc-1 and A549.
MPEC 2024-U259 : 2024 UY9
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 UY9

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Pellenes bonus Logunov, Marusik & Rakov 1999
Creators: name: Hosseinpour, Amin
name: Zamani, Alireza
name: Azizi, Kourosh
name: Moemenbellah-Fard, Mohammad Djaefar
name: Soltani, Aboozar
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Salticidae
Pellenes
Pellenes bonus

description: Pellenes bonus Logunov, Marusik & Rakov, 1999
 Material: 1♂, Deh Baraftab, 30°77ʹ47ʺN, 51°51ʹ42ʺE, May 2017.
 Iranian provinces: Razavi Khorasan. First report in Kohgiluyeh & Boyer-Ahmad.
 Distribution: Ukraine (Crimea), Azerbaijan, Iran, Turkmenistan.
description: Published as part of Hosseinpour, Amin, Zamani, Alireza, Azizi, Kourosh, Moemenbellah-Fard, Mohammad Djaefar & Soltani, Aboozar, 2019, Survey of spiders (Arachnida: Araneae) in southwestern Iran, with new records, pp. 204-213 in Ecologica Montenegrina 22 on page 210, DOI: 10.37828/em.2019.22.16, http://zenodo.org/record/12716235
Quantum Monte Carlo for Gauge Fields and Matter without the Fermion Determinant
Creators: name: Banerjee, Debasish
name: Huffman, Emilie
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Ab-initio Monte Carlo simulations of strongly-interacting fermionic systems are plagued by the fermion sign problem, making the non-perturbative study of many interesting regimes of dense quantum matter, or of theories of odd numbers of fermion flavors, challenging. Moreover, typical fermion algorithms require the computation (or sampling) of the fermion determinant. We focus instead on the meron cluster algorithm, which can solve the fermion sign problem in a class of models without involving the determinant. We develop and benchmark new meron algorithms to simulate fermions coupled to $\mathbb{Z}_2$ and $U(1)$ gauge fields in the presence of appropriate four-fermi interactions. Such algorithms can be used to uncover potential exotic properties of matter, particularly relevant for quantum simulator experiments. We demonstrate the emergence of the Gauss' Law at low temperatures for a $U(1)$ model in $(1+1)-$d.
description: 5 pages, 4 figures, 1 table
title: Catalogus Realis. IV. Klassische Philologie: IVa. Griechische Sprache und Literatur : C 139-493
Creators: name: Philipps-Universität Marburg
Publisher: name: Philipps-Universität Marburg
Year: 2020
Subjects: Systematischer Katalog
Hassiaca
Library and information sciences
Bibliotheks- und Informationswissenschaft

description: Elektronische Reproduktion von: Catalogus Realis. IV. Klassische Philologie: IVa. Griechische Sprache und Literatur : C 139-493 . - Stand: Dezember 2019. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Sonderlesesaal. - Bemerkungen: Der Katalog verzeichnet in systematisch-sachlicher Ordnung den Bestand der Universitätsbibliothek Marburg von den Anfängen bis 1957. Später erworbene ältere Literatur ist hier nicht verzeichnet. Mit Hilfe dieses Katalogs ist die Suche nach Literatur zu bestimmten Inhalten und Themen möglich. – Zur Systematik: Die Signaturen der einzelnen Bücher und Zeitschriften geben die Ordnung des Bestands wieder. Alle Signaturen beginnen mit einer römischen Zahl von I (1) bis XX (20), die das jeweilige Fach (Theologie, Geschichte, Medizin usw.) bezeichnet. Die weitere Untergliederung ergibt sich aus den nachfolgenden Kleinbuchstaben und arabischen Zahlen. Beispiel: XVIa A 117. Die Großbuchstaben A, B und C sind nicht Teil der Systematik, sondern bezeichnen das Format der betreffenden Bände: A = Folio (großformatige Bände), B = Quart (mittelgroße Bände), C = Oktav (kleinformatige Bände). - Digitalisiert 2020
description: IV a. Griechische Schriftsteller [alphabetisch] 7 - A (139 - 229) 8 - B (229b – 230) 95 - C (231 - 235be) 96 90 - D (235c – 250dt) 108 102 - E (250e – 280au) 126 120 - F (280av – 280ax) 151 - G (280b – 291) 151 - H (191ap – 365) 157 151 - I (366 – 368m) 226 216 - L (368t – 389bo) 229 219 - M (389c – 393eg) 245 - N (393f – 394d) 252 - O (395 – 398u) 255 245 - P (399 – 446ad) 258 248 - R (446af – 446ap) 327 - S (446as – 464) 327 - T (465 – 482i) 350 - X, Z (484 – 493) 370
title: Catalogus Realis. IV. Klassische Philologie: IVb. Römische Sprache und Literatur : A 206-336 ; B 193-400 ; C 493-960
Creators: name: Philipps-Universität Marburg
Publisher: name: Philipps-Universität Marburg
Year: 2020
Subjects: Systematischer Katalog
Hassiaca
Library and information sciences
Bibliotheks- und Informationswissenschaft

description: Elektronische Reproduktion von: Catalogus Realis. IV. Klassische Philologie: IVb. Römische Sprache und Literatur : A 206-336 B 193-400 C 493-960. - Stand: Dezember 2019. - Standort: Universität Marburg, Universitätsbibliothek. - Signatur: Sonderlesesaal. - Bemerkungen: Der Katalog verzeichnet in systematisch-sachlicher Ordnung den Bestand der Universitätsbibliothek Marburg von den Anfängen bis 1957. Später erworbene ältere Literatur ist hier nicht verzeichnet. Mit Hilfe dieses Katalogs ist die Suche nach Literatur zu bestimmten Inhalten und Themen möglich. – Zur Systematik: Die Signaturen der einzelnen Bücher und Zeitschriften geben die Ordnung des Bestands wieder. Alle Signaturen beginnen mit einer römischen Zahl von I (1) bis XX (20), die das jeweilige Fach (Theologie, Geschichte, Medizin usw.) bezeichnet. Die weitere Untergliederung ergibt sich aus den nachfolgenden Kleinbuchstaben und arabischen Zahlen. Beispiel: XVIa A 117. Die Großbuchstaben A, B und C sind nicht Teil der Systematik, sondern bezeichnen das Format der betreffenden Bände: A = Folio (großformatige Bände), B = Quart (mittelgroße Bände), C = Oktav (kleinformatige Bände). - Digitalisiert 2020
The tragedy of the emeritus and the fates of anatomical collections: Alfred Benninghoff's memoir of Ferdinand Count Spee.
Creators: name: Hopwood, Nick
Publisher: name: Apollo - University of Cambridge Repository
Year: 2019

description: Retirement can be a significant period in modern academic careers, and emeritus professors have shaped the fates of collections in departments and disciplines. This is evidenced by reconstructing the meanings of Alfred Benninghoff's remarkable memoir of Ferdinand Count Spee, sometime director of the anatomical institute in the University of Kiel. Thematizing the 'tragedy' of the emeritus, Benninghoff's 1944 article recalls his predecessor's possessive interactions with his collections as these approached assorted endings. With nostalgia and humour, it places the old aristocrat physically, intellectually and emotionally in a building that bombing would soon destroy. Benninghoff's Spee retained control over the microscope slides with which he engaged colleagues in conversations about research in embryology and physiological anatomy. He lost authority over the teaching charts and wet preparations, but still said a long farewell to these things; he tried, like a conductor alone after a concert, to recapture an experience he had once shared. The elegy is interpreted as apologetic about anatomy under National Socialism, and as offering a model of collegiality. It illustrates how collections have mediated relations between scientific generations at the end of a career.
miR-1-5p targets TGF-βR1 and is suppressed in the hypertrophying hearts of rats with pulmonary arterial hypertension.
Creators: name: Connolly, Martin
name: Garfield, Benjamin E
name: Crosby, Alexi
name: Morrell, Nick W
name: Wort, Stephen J
name: Kemp, Paul R
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020

description: The microRNA miR-1 is an important regulator of muscle phenotype including cardiac muscle. Down-regulation of miR-1 has been shown to occur in left ventricular hypertrophy but its contribution to right ventricular hypertrophy in pulmonary arterial hypertension are not known. Previous studies have suggested that miR-1 may suppress transforming growth factor-beta (TGF-β) signalling, an important pro-hypertrophic pathway but only indirect mechanisms of regulation have been identified. We identified the TGF-β type 1 receptor (TGF-βR1) as a putative miR-1 target. We therefore hypothesized that miR-1 and TGF-βR1 expression would be inversely correlated in hypertrophying right ventricle of rats with pulmonary arterial hypertension and that miR-1 would inhibit TGF-β signalling by targeting TGF-βR1 expression. Quantification of miR-1 and TGF-βR1 in rats treated with monocrotaline to induce pulmonary arterial hypertension showed appropriate changes in miR-1 and TGF-βR1 expression in the hypertrophying right ventricle. A miR-1-mimic reduced enhanced green fluorescent protein expression from a reporter vector containing the TGF-βR1 3'- untranslated region and knocked down endogenous TGF-βR1. Lastly, miR-1 reduced TGF-β activation of a (mothers against decapentaplegic homolog) SMAD2/3-dependent reporter. Taken together, these data suggest that miR-1 targets TGF-βR1 and reduces TGF-β signalling, so a reduction in miR-1 expression may increase TGF-β signalling and contribute to cardiac hypertrophy.
Activation-induced changes in platelet surface receptor expression and the contribution of the large-platelet subpopulation to activation.
Creators: name: Moroi, Masaaki
name: Farndale, Richard W
name: Jung, Stephanie M
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Receptors
Activation
Gpvi
Gpib
Αiibβ3
Large Platelets
Iibiiia

description: Objective:Platelet surface receptors are also present subcellularly in organelle membranes and can be expressed on the surface upon platelet activation. However, some receptors were reported to be decreased after activation. We analyzed the mechanism of activation-dependent expression for different receptors. Methods:Flow cytometry using platelet-rich plasma or washed platelets was used to analyze receptor-expression changes after platelet activation by glycoprotein (GP) VI-specific agonists, crosslinked collagen-related peptide (CRP-XL) and convulxin (Cvx), and thrombin. Platelets prelabeled with fluorescent antibody specific for a receptor were allowed to adhere on immobilized collagen or fibrinogen and post-stained with antibody against the same receptor labeled with another fluorophore, allowing us to differentiate preexisting receptors from newly expressed receptors. Results:Surface expression of αIIbβ3 increased in CRP-XL-, Cvx-, or thrombin-stimulated platelets, but GPIb decreased due to shedding and internalization. Both total and dimeric GPVI increased in thrombin-induced platelets, but decreased in platelets stimulated by Cvx, as a result of internalization. The larger platelets showed a greater increase in surface receptor (α2β1, αIIbβ3, GPVI, GPIb) expression upon activation compared to the smaller ones. Pre- and postlabeling with antibody specific for the same receptor, but conjugated with different fluorophores, allowed us to differentiate the receptors expressed on the surface of resting platelets from receptors newly exposed to the surface upon platelet activation. Conclusions:Increased receptor expressions after activation are mainly manifested in the larger platelets. On platelets adhered on fibrinogen, the newly expressed receptors, especially GPVI, are localized in the lamellipodia of the spread platelets.
Adaptive Learning based Upper-Limb Rehabilitation Training System with Collaborative Robot
Creators: name: Lim, Jun Hong
name: He, Kaibo
name: Yi, Zeji
name: Hou, Chen
name: Zhang, Chen
name: Sui, Yanan
name: Li, Luming
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Rehabilitation training for patients with motor disabilities usually requires specialized devices in rehabilitation centers. Home-based multi-purpose training would significantly increase treatment accessibility and reduce medical costs. While it is unlikely to equip a set of rehabilitation robots at home, we investigate the feasibility to use the general-purpose collaborative robot for rehabilitation therapies. In this work, we developed a new system for multi-purpose upper-limb rehabilitation training using a generic robot arm with human motor feedback and preference. We integrated surface electromyography, force/torque sensors, RGB-D cameras, and robot controllers with the Robot Operating System to enable sensing, communication, and control of the system. Imitation learning methods were adopted to imitate expert-provided training trajectories which could adapt to subject capabilities to facilitate in-home training. Our rehabilitation system is able to perform gross motor function and fine motor skill training with a gripper-based end-effector. We simulated system control in Gazebo and training effects (muscle activation level) in OpenSim and evaluated its real performance with human subjects. For all the subjects enrolled, our system achieved better training outcomes compared to specialist-assisted rehabilitation under the same conditions. Our work demonstrates the potential of utilizing collaborative robots for in-home motor rehabilitation training.
Ограничение калорийности пищи – ключ к профилактике cосудистого старения. Системные гипертензии.2015 (1).pdf
Creators: name: Doe, Jonn
Publisher: name: figshare
Year: 2016
Subjects: subject: 111102 Dietetics and Nutrigenomics
subject: FOS: Health sciences

description: Орлова Я.А. Ограничение калорийности пищи – ключ к профилактике сосудистого старения. Системные гипертензии.2015;№ 1
New bioactive labdane diterpenoids from Marrubium aschersonii
Creators: name: Saoussen Hammami
name: Zhenzhen Li
name: Mingjie Huang
name: Mokni, Ridha El
name: Dhaouadi, Hatem
name: Yin, Sheng
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Pharmacology
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: 60506 Virology

description: A phytochemical investigation of the ethanol extract of Marrubium aschersonii Magnus (Lamiaceae) collected from Tunisia led to the isolation and identification of two new labdane diterpenoids, marrubaschs A (1) and B (2), along with two known compounds (3 and 4). Their structures were elucidated by spectroscopic methods including HRESIMS and NMR techniques. All compounds were evaluated for their inhibitory effects on the nitric oxide (NO) production induced by lipopolysaccharide in RAW 264.7 macrophage cells. Compound 2 exhibited weak inhibition of NO production with an IC50 value of 35 ± 1.0 μM.
Characterisation of night-time outdoor lighting in urban centres using cluster analysis of remotely sensed light emissions
Creators: name: Bustamante-Calabria, Máximo
name: Martín-Ruiz, Susana
name: de Miguel, Alejandro Sánchez
name: Ortiz, J. L.
name: Vílchez, J. M.
name: Aceituno, Jesús
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Evidence of the negative impact of light pollution on ecosystems is increasing every year. Its monitoring and study requires the identification, characterisation and control of the emitting sources. This is the case of urban centres with outdoor lighting that spills light outside the place it is intended to illuminate. The quantity and nature of the pollutant (artificial light at night) depends on the lamps used and how they are positioned. This is important because a greater proportion of blue light means a greater scattering effect. In this study, we analysed the emissions of 100 urban centres in the north of Granada province (Spain), using International Space Station (ISS) images from 2012 and 2021, in order to compare the results with public lighting inventories and verify the validity of these data for characterising night-time lighting emissions. Using inference and cluster analysis techniques, we confirmed an overall increase in emissions and a shift in their colour towards blue, consistent with the results of the lighting inventory analysis. We concluded that it is possible to use ISS imagery to characterise artificial light emissions and the lighting that causes them, none the less there are a number of inherent problems with the data and the way it was collected that require the results to be interpreted with caution.
Spatio-temporal dynamics of Plasmodium falciparum transmission within a spatial unit on the Colombian Pacific Coast.
Creators: name: Knudson, Angélica
name: González-Casabianca, Felipe
name: Feged-Rivadeneira, Alejandro
name: Pedreros, Maria Fernanda
name: Aponte, Samanda
name: Olaya, Adriana
name: Castillo, Carlos F
name: Mancilla, Elvira
name: Piamba-Dorado, Anderson
name: Sanchez-Pedraza, Ricardo
name: Salazar-Terreros, Myriam Janeth
name: Lucchi, Naomi
name: Udhayakumar, Venkatachalam
name: Jacob, Chris
name: Pance, Alena
name: Carrasquilla, Manuela
name: Apráez, Giovanni
name: Angel, Jairo Andrés
name: Rayner, Julian C
name: Corredor, Vladimir
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020

description: As malaria control programmes concentrate their efforts towards malaria elimination a better understanding of malaria transmission patterns at fine spatial resolution units becomes necessary. Defining spatial units that consider transmission heterogeneity, human movement and migration will help to set up achievable malaria elimination milestones and guide the creation of efficient operational administrative control units. Using a combination of genetic and epidemiological data we defined a malaria transmission unit as the area contributing 95% of malaria cases diagnosed at the catchment facility located in the town of Guapi in the South Pacific Coast of Colombia. We provide data showing that P. falciparum malaria transmission is heterogeneous in time and space and analysed, using topological data analysis, the spatial connectivity, at the micro epidemiological level, between parasite populations circulating within the unit. To illustrate the necessity to evaluate the efficacy of malaria control measures within the transmission unit in order to increase the efficiency of the malaria control effort, we provide information on the size of the asymptomatic reservoir, the nature of parasite genotypes associated with drug resistance as well as the frequency of the Pfhrp2/3 deletion associated with false negatives when using Rapid Diagnostic Tests.
A Platform Approach to Protein Encapsulates with Controllable Surface Chemistry.
Creators: name: Warner, Nina
name: Osojnik Črnivec, Ilja Gasan
name: Rana, Vijay Kumar
name: Cruz, Menandro
name: Scherman, Oren
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: spray dry
protein
encapsulation
formulation
excipient
core-shell
EISA

description: The encapsulation of proteins into core-shell structures is a widely utilised strategy for controlling protein stability, delivery and release. Despite the recognised utility of these microstructures, however, core-shell fabrication routes are often too costly or poorly scalable to allow for industrial translation. Furthermore, many scalable routes rely upon emulsion-techniques implicating denaturing or environmentally harmful organic solvents. Herein, we investigate core-shell protein encapsulation through single-feed, aqueous spray drying: a cheap, industrially ubiquitous particle-formation technology in the absence of organic solvents. We show that an excipient's preference for the surface of the spray dried particle is well-predicted by its hydrodynamic diameter (Dh) under relevant feed buffer conditions (pH and ionic strength) and that the predictive power of Dh is improved when measured at the spray dryer outlet temperature compared to room temperature (R2 = 0.64 vs. 0.59). Lastly, we leverage these findings to propose an adaptable design framework for fabricating core-shell protein encapsulates by single-feed aqueous spray drying.
Comprehensive characterization of cell-free tumor DNA in plasma and urine of patients with renal tumors.
Creators: name: Smith, Christopher G
name: Moser, Tina
name: Mouliere, Florent
name: Field-Rayner, Johanna
name: Eldridge, Matthew
name: Riediger, Anja L
name: Chandrananda, Dineika
name: Heider, Katrin
name: Wan, Jonathan C M
name: Warren, Anne Y
name: Morris, James
name: Hudecova, Irena
name: Cooper, Wendy N
name: Mitchell, Thomas J
name: Gale, Davina
name: Ruiz-Valdepenas, Andrea
name: Klatte, Tobias
name: Ursprung, Stephan
name: Sala, Evis
name: Riddick, Antony C P
name: Aho, Tevita F
name: Armitage, James N
name: Perakis, Samantha
name: Pichler, Martin
name: Seles, Maximilian
name: Wcislo, Gabriel
name: Welsh, Sarah J
name: Matakidou, Athena
name: Eisen, Tim
name: Massie, Charles E
name: Rosenfeld, Nitzan
name: Heitzer, Ellen
name: Stewart, Grant D
Publisher: name: Apollo - University of Cambridge Repository
Year: 2020
Subjects: Heterogeneity
Renal Cancer
Predictive Biomarker
Cell-free Tumor Dna (Ctdna)
Personalized Analysis

description: BACKGROUND:Cell-free tumor-derived DNA (ctDNA) allows non-invasive monitoring of cancers, but its utility in renal cell cancer (RCC) has not been established. METHODS:Here, a combination of untargeted and targeted sequencing methods, applied to two independent cohorts of patients (n = 91) with various renal tumor subtypes, were used to determine ctDNA content in plasma and urine. RESULTS:Our data revealed lower plasma ctDNA levels in RCC relative to other cancers of similar size and stage, with untargeted detection in 27.5% of patients from both cohorts. A sensitive personalized approach, applied to plasma and urine from select patients (n = 22) improved detection to ~ 50%, including in patients with early-stage disease and even benign lesions. Detection in plasma, but not urine, was more frequent amongst patients with larger tumors and in those patients with venous tumor thrombus. With data from one extensively characterized patient, we observed that plasma and, for the first time, urine ctDNA may better represent tumor heterogeneity than a single tissue biopsy. Furthermore, in a subset of patients (n = 16), longitudinal sampling revealed that ctDNA can track disease course and may pre-empt radiological identification of minimal residual disease or disease progression on systemic therapy. Additional datasets will be required to validate these findings. CONCLUSIONS:These data highlight RCC as a ctDNA-low malignancy. The biological reasons for this are yet to be determined. Nonetheless, our findings indicate potential clinical utility in the management of patients with renal tumors, provided improvement in isolation and detection approaches.
MPEC 2024-U260 : 2024 UZ9
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2024
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2024 UZ9

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.