63 research outputs found
N-Methyl-3,5-dinitrobenzamide
The asymmetric unit of the title compound, C8H7N3O5, contains two independent molecules in which the amide plane is oriented at dihedral angles of 29.82 (2) and 31.17 (2)° with respect to the benzene ring. In the crystal, molecules are connected via intermolecular N—H⋯O hydrogen bonds, forming chains running along the b axis
(E)-N′-[(E)-3-Phenylallylidene]benzohydrazide
In the title molecule, C16H14N2O, the dihedral angle between the two phenyl rings is 23.5 (6)°. In the crystal, N—H—O hydrogen bonds link molecules into chains running along the a axis
Detection of Quasi-periodic Oscillations in SGR 150228213
The detection of quasi-periodic oscillations (QPOs) in magnetar giant flares
(GFs) has brought a new perspective to study the mechanism of magnetar bursts.
Due to the scarcity of GFs, searching QPOs from magnetar short bursts is
reasonable. Here we report the detection of a high frequency QPO at
approximately 110 Hz and a wide QPO at approximately 60 Hz in a short magnetar
burst SGR 150228213, with a confidence level of 3.35. This burst was
initially attributed to 4U 0142+61 by /GBM on location, but we haven't
detected such QPOs in other bursts from this magnetar. We also found that there
was a repeating fast radio burst associated with SGR 150228213 on location.
Finally, we discuss the possible origins of SGR 150228213
Berry Curvature and Bulk-Boundary Correspondence from Transport Measurement for Photonic Chern Bands
Berry curvature is a fundamental element to characterize topological quantum
physics, while a full measurement of Berry curvature in momentum space was not
reported for topological states. Here we achieve two-dimensional Berry
curvature reconstruction in a photonic quantum anomalous Hall system via Hall
transport measurement of a momentum-resolved wave packet. Integrating measured
Berry curvature over the two-dimensional Brillouin zone, we obtain Chern
numbers corresponding to -1 and 0. Further, we identify bulk-boundary
correspondence by measuring topology-linked chiral edge states at the boundary.
The full topological characterization of photonic Chern bands from Berry
curvature, Chern number, and edge transport measurements enables our photonic
system to serve as a versatile platform for further in-depth study of novel
topological physics
Strong Neel ordering and luminescence correlation in a two-dimensional antiferromagnet
Magneto-optical effect has been widely used in light modulation, optical
sensing and information storage. Recently discovered two-dimensional (2D) van
der Waals layered magnets are considered as promising platforms for
investigating novel magneto-optical phenomena and devices, due to the
long-range magnetic ordering down to atomically-thin thickness, rich species
and tunable properties. However, majority 2D antiferromagnets suffer from low
luminescence efficiency which hinders their magneto-optical investigations and
applications. Here, we uncover strong light-magnetic ordering interactions in
2D antiferromagnetic MnPS3 utilizing a newly-emerged near-infrared
photoluminescence (PL) mode far below its intrinsic bandgap. This ingap PL mode
shows strong correlation with the Neel ordering and persists down to monolayer
thickness. Combining the DFT, STEM and XPS, we illustrate the origin of the PL
mode and its correlation with Neel ordering, which can be attributed to the
oxygen ion-mediated states. Moreover, the PL strength can be further tuned and
enhanced using ultraviolet-ozone treatment. Our studies offer an effective
approach to investigate light-magnetic ordering interactions in 2D
antiferromagnetic semiconductors
The uterine expression of SEC63 gene is up-regulated at implantation sites in association with the decidualization during the early pregnancy in mice
<p>Abstract</p> <p>Background</p> <p>Sec63 is a key component of the protein translocation machinery in the mammalian endoplasmic reticulum (ER), and involved in the post-translation processing of secretory proteins. The aim of this study was to determine the expression pattern of SEC63 gene in mouse uterus during the early pregnancy.</p> <p>Methods</p> <p>Real-time quantitative PCR and Western blot analyses were used to evaluate the alteration in levels of uterine <it>SEC63 </it>gene expression during the peri-implantation period in mice. Further, both in situ hybridization and immunohistochemical analyses were performed to examine the spatial localization of SEC63 gene expression in mouse uterine tissues. The presence of Sec63 protein in human uterine tissue was also detected by immunohistochemical analysis. Statistical analysis was carried out using Tukey test.</p> <p>Results</p> <p>Uterine SEC63 gene expression was up-regulated and predominantly localized in mouse decidual cells during days 5–8 of pregnancy. More interestingly, Sec63 protein was also detected in human decidua of 10-week pregnancy, whereas was not observed in human endometrial tissues both at proliferative and secretory phases of menstrual cycle.</p> <p>Conclusion</p> <p>The pattern of SEC63 gene expression is consistent with a possible role for SEC63 in decidualization.</p
High-efficiency single-photon source above the loss-tolerant threshold for efficient linear optical quantum computing
Photon loss is the biggest enemy for scalable photonic quantum information
processing. This problem can be tackled by using quantum error correction,
provided that the overall photon loss is below a threshold of 1/3. However, all
reported on-demand and indistinguishable single-photon sources still fall short
of this threshold. Here, by using tailor shaped laser pulse excitation on a
high-quantum efficiency single quantum dot deterministically coupled to a
tunable open microcavity, we demonstrate a high-performance source with a
single-photon purity of 0.9795(6), photon indistinguishability of 0.9856(13),
and an overall system efficiency of 0.712(18), simultaneously. This source for
the first time reaches the efficiency threshold for scalable photonic quantum
computing. With this source, we further demonstrate 1.89(14) dB intensity
squeezing, and consecutive 40-photon events with 1.67 mHz count rate
Bodily Ontology of the Soul and Health Reform: Adventist Turn In Christian Anthropology
Prodorom platonske antropologije, kršćanstvom još od 2. stoljeća počinje dominirati dualizam, nepomućen ponešto holističkijim tomizmom, a dodatno osnažen kartezijanizmom koji je kršćansku teologiju i dušu odgurnuo još dalje od tijela. Tek se šezdesetih godina 20. stoljeća teolozi počinju osvješćivati o daleko pozitivnijem i inkluzivnijem stavu Biblije prema tijelu. No, stoljeće prije toga, adventistički se pokret rađa u kondicionalizmu kakvog je iznio Hobbes u Levijatanu (XLIV). Čovjek nema dušu, on jest »živa duša« – tijelo oživljeno »dahom života« (Post 2,7). Bez tijela nema života, pa tako ni vječnog pakla. Ovome adventisti pridružuju i filozofiju zdravstvene reforme u kojoj njega tijela ima ključnu ulogu i o čemu ovisi intelektualni i duhovni napredak čovjeka, te na tom temelju grade obilnu zdravstvenu i obrazovnu praksu. Ova fizikalistička inačica kršćanske antropologije jedinstven je svjetonazorski doprinos filozofiji tijela i tema vrijedna akademske pažnje.Following the spread of Platonic anthropology, Christianity has started, already since the 2nd century A.D., to be dominated by dualism – a trend undisturbed by somewhat more holistic Thomism, and further strengthened by Cartesianism, which distanced Christian theology and soul even further away from the body. During the 1960s, theologians have become aware of the far more positive and inclusive attitude that the Bible has towards the body. Yet, a century before, the Adventist movement was born in conditionalism such as presented by Hobbes in Leviathan (XLIV). Man does not have a soul; he is a “living soul” – a body vivified by the “breath of life” (Gen 2:7). Without the body, there is no life, nor, consequentially, eternal hell. To this Adventists have also conjoined a philosophy of health reform in which the care of the body has a key role, and upon which depends man’s intellectual and spiritual wellbeing. On this foundation, they have built a rich healthcare and educational practice. This physicalist version of Christian anthropology is a unique worldview contribution to philosophy of the body and a subject worthy of academic attention
Management of granulomatous lobular mastitis: an international multidisciplinary consensus (2021 edition)
Granulomatous lobular mastitis (GLM) is a rare and chronic benign inflammatory disease of the breast. Difficulties exist in the management of GLM for many front-line surgeons and medical specialists who care for patients with inflammatory disorders of the breast. This consensus is summarized to establish evidence-based recommendations for the management of GLM. Literature was reviewed using PubMed from January 1, 1971 to July 31, 2020. Sixty-six international experienced multidisciplinary experts from 11 countries or regions were invited to review the evidence. Levels of evidence were determined using the American College of Physicians grading system, and recommendations were discussed until consensus. Experts discussed and concluded 30 recommendations on historical definitions, etiology and predisposing factors, diagnosis criteria, treatment, clinical stages, relapse and recurrence of GLM. GLM was recommended as a widely accepted definition. In addition, this consensus introduced a new clinical stages and management algorithm for GLM to provide individual treatment strategies. In conclusion, diagnosis of GLM depends on a combination of history, clinical manifestations, imaging examinations, laboratory examinations and pathology. The approach to treatment of GLM should be applied according to the different clinical stage of GLM. This evidence-based consensus would be valuable to assist front-line surgeons and medical specialists in the optimal management of GLM.Improving the Ability of Diagnosis and Treatment of Difficult Disease
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