gebhart/patrepeval huggingface dataset:
An Adaptive Patch-Based Reconstruction Scheme for View Synthesis by Disparity Estimation Using Optical Flow (2017)

Due to the rapid growth of technology and the dropping cost of cameras, multiview imaging applications have attracted many researchers in recent years. Free viewpoint and 3D Televisions are among these interesting applications. One of the problems that should be solved to realize such applications is rendering. In this paper, we propose an optical flow-assisted adaptive patch-based view synthesis algorithm. This patch-based scheme reduces the size and number of holes during reconstruction. The size of patch is determined in response to edge information for better reconstruction, especially near the boundaries. In the first stage of the algorithm, disparity is obtained using optical flow estimation. Then, a reconstructed version of the left and right views is generated using our adaptive patch-based algorithm. The mismatches between each view and its reconstructed version are obtained in the mismatch detection steps. This stage results in two masks as outputs, which help with the refinement of disparities and the selection of the best patches for final synthesis. Finally, the remaining holes are filled using our simple hole-filling scheme and the refined disparities. The objective and subjective performances of the proposed algorithm are compared with recent methods. The results show that the proposed algorithm achieves an improvement of 2.14 dB on average.
Claudin 6: Therapeutic prospects for tumours, and mechanisms of expression and regulation (Review) (2021)

Tight junctions (TJs) are an important component of cell connectivity; they maintain cell polarity, permeability and adhesion, and participate in the regulation of cell proliferation and differentiation. The claudin (CLDN) family is integral to TJs, and CLDN6 is an important member of this family. Abnormal expression of CLDN6 can destroy the integrity of TJs through various mechanisms and can serve multiple roles in the occurrence and development of tumours. CLDN6 is widely expressed in various tumours but rarely expressed in healthy adult tissues. The aim of this review is to critically examine the recent literature on CLDN6, including its structure, expression in different tumours, regulatory mechanisms and therapeutic prospects. Although some conclusions are controversial, in certain tumours, such as liver, ovarian, endometrial and oesophageal cancer, and atypical teratoid/rhabdoid tumours, research consistently shows that CLDN6 is expressed in tumour tissues but is not expressed or is expressed at low levels in surrounding tissues. In these tumours, CLDN6 has potential as a carcinoembryonic antigen and a therapeutic target.
Exceptional combination of mechanical and corrosion properties in partially recrystallized CoCrFeNiMo medium-entropy alloys (2023)

Corrosion-resistant materials with good mechanical properties are an endless goal to develop reliable structural materials. Multiple strengthening mechanisms stemming from diverse microstructural factors have been developed, while the effect of microstructural factors on corrosion properties in high-entropy alloys has not been clearly defined yet. Herein, the corrosion behaviors of CoCrFeNiMo medium-entropy alloys with different annealing times are investigated. The influences of microstructures are summarized as follows: alloyed Mo accelerates repassivation, Mo-rich precipitates form micro-galvanic couples, and unrecrystallized microstructures induce pitting corrosion. Regarding mechanical properties, the alloyed Mo, Mo-rich precipitates, and unrecrystallized region with profuse dislocations lead significant solid solution strengthening, precipitation strengthening, and dislocation strengthening, respectively. Particularly, the sample annealed for 60 min possesses dissolved Mo in the matrix, fine precipitates, wide recrystallized regions, and low dislocation density, resulting in a wide passivation range of 1.512 V and high yield strength × fracture strain of 220.3 MPa simultaneously. The sample annealed for 60 minutes reveals a synergistic combination of diverse microstructural factors affecting corrosion and mechanical properties.
A Water-Soluble Epoxy-Based Green Crosslinking System for Stabilizing PVA Nanofibers (2022)

With the ever-growing concern about environmental conservation, green production and water-based nanofibers have attracted more and more interest from both academic and industrial fields; nevertheless, the stabilization process of water-based nanofibers is primarily relying on the application of organic solvent-based crosslinking agents. In this work, we develop a green approach to fabricate water-resistant polyvinyl alcohol (PVA) nanofibers by using a water-based epoxy compound, N<sup>1</sup>, N<sup>6</sup>-bis(oxiran-2-ylmethyl) hexane-1,6-diamine (EH), as the crosslinker. This EH/sodium carbonate/sodium bicarbonate (CBS) solution system can break down large aggregates of PVA molecules into small ones and promote the uniform distribution of EH in the solution, resulting in the improved stability of crosslinked PVA nanofibers. We firstly report that the uniform dispersion of crosslinking agents in the electrospinning solution plays a vital role in improving the stability of spinning solutions and the water resistance of crosslinked PVA nanofibers by comparing crosslinking performances between water-based epoxy and conventional water-based blocked isocyanate (BI). This work could open up a novel strategy and green approach for the stabilization of water-based nanofibers.
Isospecific propylene polymerization with unbridged Group 4 metallocenes (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsospecific propylene polymerization with unbridged Group 4 metallocenesAbbas Razavi and Jerry L. AtwoodCite this: J. Am. Chem. Soc. 1993, 115, 16, 7529–7530Publication Date (Print):August 1, 1993Publication History Published online1 May 2002Published inissue 1 August 1993https://pubs.acs.org/doi/10.1021/ja00069a073https://doi.org/10.1021/ja00069a073research-articleACS PublicationsRequest reuse permissionsArticle Views211Altmetric-Citations61LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (2)»Supporting Information Supporting Information Get e-Alerts
Potential of a Second-Generation Dual-Layer Spectral CT for Dose Calculation in Particle Therapy Treatment Planning (2022)

In particle therapy treatment planning, dose calculation is conducted using patient-specific maps of tissue ion stopping power ratio (SPR) to predict beam ranges. Improving patient-specific SPR prediction is therefore essential for accurate dose calculation. In this study, we investigated the use of the Spectral CT 7500, a second-generation dual-layer spectral computed tomography (DLCT) system, as an alternative to conventional single-energy CT (SECT) for patient-specific SPR prediction. This dual-energy CT (DECT)-based method allows for the direct prediction of SPR from quantitative measurements of relative electron density and effective atomic number using the Bethe equation, whereas the conventional SECT-based method consists of indirect image data-based prediction through the conversion of calibrated CT numbers to SPR. The performance of the Spectral CT 7500 in particle therapy treatment planning was characterized by conducting a thorough analysis of its SPR prediction accuracy for both tissue-equivalent materials and common non-tissue implant materials. In both instances, DLCT was found to reduce uncertainty in SPR predictions compared to SECT. Mean deviations of 0.7% and 1.6% from measured SPR values were found for DLCT- and SECT-based predictions, respectively, in tissue-equivalent materials. Furthermore, end-to-end analyses of DLCT-based treatment planning were performed for proton, helium, and carbon ion therapies with anthropomorphic head and pelvic phantoms. 3D gamma analysis was performed with ionization chamber array measurements as the reference. DLCT-predicted dose distributions revealed higher passing rates compared to SECT-predicted dose distributions. In the DLCT-based treatment plans, measured distal-edge evaluation layers were within 1 mm of their predicted positions, demonstrating the accuracy of DLCT-based particle range prediction. This study demonstrated that the use of the Spectral CT 7500 in particle therapy treatment planning may lead to better agreement between planned and delivered dose compared to current clinical SECT systems.
Race, Socioeconomic Status, and Time to Transplantation in Multiple Myeloma (2018)

Abstract Race, Socioeconomic Status, and Time to Transplantation in Multiple Myeloma Background: Multiple myeloma is the most common hematologic malignancy in blacks. Previous studies have found that black patients undergo autologous stem cell transplant (ASCT) less frequently than their white counterparts, though the reasons for this have not been fully elucidated. To identify whether racial differences in timing of referrals to transplant centers and transplantation may play a role in this observed disparity, we analyzed data from transplants undergone at The Mount Sinai Hospital between 2011 and 2016. Methods: We retrospectively analyzed 416 black and white patients who received their first autologous stem cell transplant for multiple myeloma at The Mount Sinai Hospital between 2011 and 2016. We compared the time from initial diagnosis to stem cell harvest and the time from harvest to transplant between the two groups while controlling for age, socioeconomic status, and functional status. Results: In total, 264 white patients and 152 black patients were identified as receiving their first transplant between 2011 and 2016. Data regarding each patient's demographic, date of diagnosis, date of harvest and transplant, and functional status were available. Age, socioeconomic status (as assessed through census data of median income of the patients' zip code), and functional status were considered possible confounders. Linear regression analysis was used to assess differences in transplant timing between races while controlling for these factors. We found that between racial groups, neither the time from diagnosis to harvest (528 days vs. 406 days respectively, p=.95) nor the time from harvest to transplant (113 days vs. 150 days respectively, p=.31) was significantly different. Age and socioeconomic status also did not significantly affect either time point, although patients with higher socioeconomic status had a decreased time from diagnosis to harvest which approached significance (p=0.07) regardless of their race. Finally, better functional status was associated with a shorter time from diagnosis to harvest (p=0.003). Conclusion: Based on these findings, race and socioeconomic status did not significantly affect expediency of referral to and completion of transplantation following initial disease diagnosis. Further studies are needed to clarify the factors contributing to observed differences in ASCT utilization between blacks and whites. Disclosures No relevant conflicts of interest to declare.
Coarsened Exact Matching of Trabectome Surgery Combined with Baerveldt to Baerveldt: Same Session Trabectome Negates Tube Fenestration (2018)

Purpose: To evaluate the efficacy and survival rates of trabectome-mediated ab interno trabeculectomy combined with non-fenestrated Baerveldt glaucoma implants (BT) in comparison to Baerveldt glaucoma implant alone (B).Method: A total of 175 eyes undergoing primary glaucoma surgery (60 eyes BT and 115 B) were enrolled in this retrospective comparative case series. Participants were identified using the procedural terminology codes. Groups were then matched using Coarsened Exact Matching (51 eyes in each group). The primary outcome measure was surgical success, defined as 5 mmHg &amp;lt; IOP &amp;le; 21 mmHg, and IOP reduction &amp;ge; 20% from baseline, and no reoperation for glaucoma. Secondary outcome measures were intraocular pressure, the number of glaucoma medications, and best corrected visual acuity (BCVA).Results: The cumulative probability of success at one year was 61% in BT, and 50% in B. IOP decreased significantly from 23.5&amp;plusmn;2.4 mmHg at baseline to 14.1&amp;plusmn;2.7 mmHg at the final follow up in BT (P= 0.001). The corresponding numbers for B were 23.2&amp;plusmn; 2.0 and 13.9&amp;plusmn; 1.6, respectively (P= 0.001). There was no significant difference in IOP at the final follow-up (P=0.56). The number of medications at baseline was 2.3&amp;plusmn;0.3 in both groups. However, BT needed significantly fewer drops at all postoperative time intervals and used 1.1&amp;plusmn;0.3 (BT) and 2.0&amp;plusmn;0.4 eye drops (B) at the final follow-up visit (P= 0.004). No dangerous hypotony or hypertension occurred in BT.Conclusion: Similar rates of success and IOP reduction were observed in BT and B. BT needed significantly fewer glaucoma medications. Tube fenestration was not necessary in BT resulting in less postoperative hypotony and hypertension.
Operative Recovery of Vasal Sperm From Anejaculatory Men: Preliminary Report (1986)

Sperm showing good motility and function, as demonstrated by the in vitro sperm penetration assay using hamster ova, were collected from the vas deferens of 3 men with ejaculatory failure. The collection procedure may be repeated over multiple ovulatory cycles. The sperm may be used to attempt artificial insemination or in vitro fertilization.
Supplementary Figure 2 from The Hedgehog Receptor Patched Functions in Multidrug Transport and Chemotherapy Resistance (2023)

&lt;p&gt;PDF file - 839K, Resistance of hPtc-expressing yeasts depends on doxorubicin concentration&lt;/p&gt;
Bedeutung der Temperatur und des Eisen(II)‐oxydgehaltes der Schlacke bei der Kalkauflösung im basischen Siemens‐Martin‐Verfahren (1968)

Vorstellungen über Auflösungsvorgänge in sauren und basischen Schlacken. Betriebsversuche zum Verhalten von sauren und basischen Schlacken bei der Kalkauflösung und Deutung im System (FeO)′–(CaO)′–(SiO 2 )′. Laboratoriumsversuche zur Bestimmung des Einflusses von Temperatur und Eisenoxydulgehalt.
Mechanisms of telomeric instability (2008)

Telomeres are the nucleoprotein structures that cap the ends of linear chromosomes. The length of telomeric DNA is an important determinant of function; with short telomeres triggering either replicative senescence or, in the absence of a functional DNA damage response, telomere fusion. Telomere fusion can trigger cycles of anaphase-bridging, breakage and fusion that can lead to genomic arrangements, of the type that are frequently found in cancer. Telomere erosion as a function of ongoing cell division results in the gradual loss of sequences from the terminus; this is superimposed by additional mutational mechanisms that generate large-scale, apparently sporadic, telomeric deletions. These events occur in normal human cells, irrespective of telomerase activity, and because they create telomeres that are capable of fusion, they represent a significant cell-intrinsic mutational mechanism. Here I review some of the potential mechanisms that may result in sporadic telomeric deletion.
Novel topology for parallel connection of soft-switching high-power high-frequency inverters (2003)

Inductive heating applications like pipe welding or steel strip annealing require electrical power ratings of several megawatts at frequencies up to 100 kHz and higher. The large power-frequency product represents a significant challenge for today's semiconductor technology. As the absolute maximum rating of a single-stage inverter is often far below rated power, several inverters or several devices have to be connected in parallel. This paper presents a novel topology, consisting of parallel-connected soft-switching high-frequency inverters. Distinctive features include flexible configurations, negligible shunt currents between inverters, and equally shared power among inverters. Furthermore, compared to a single-inverter system, no additional reactive components are necessary for connecting inverters in parallel and there is no need of a high-frequency transformer to adapt the impedance of the load to the inverters.
A 3D-structural model of unsulfated chondroitin from high-field NMR: 4-sulfation has little effect on backbone conformation (2009)

The glycosaminoglycan chondroitin sulfate is essential in human health and disease but exactly how sulfation dictates its 3D-structure at the atomic level is unclear. To address this, we have purified homogenous oligosaccharides of unsulfated chondroitin (with and without (15)N-enrichment) and analysed them by high-field NMR to make a comparison published chondroitin sulfate and hyaluronan 3D-structures. The result is the first full assignment of the tetrasaccharide and an experimental 3D-model of the hexasaccharide (PDB code 2KQO). In common with hyaluronan, we confirm that the amide proton is not involved in strong, persistent inter-residue hydrogen bonds. However, in contrast to hyaluronan, a hydrogen bond is not inferred between the hexosamine OH-4 and the glucuronic acid O5 atoms across the beta(1-->3) glycosidic linkage. The unsulfated chondroitin bond geometry differs slightly from hyaluronan by rotation about the beta(1-->3) psi dihedral (as previously predicted by simulation), while the beta(1-->4) linkage is unaffected. Furthermore, comparison shows that this glycosidic linkage geometry is similar in chondroitin-4-sulfate. We therefore hypothesise that both hexosamine OH-4 and OH-6 atoms are solvent exposed in chondroitin, explaining why it is amenable to sulfation and hyaluronan is not, and also that 4-sulfation has little effect on backbone conformation. Our conclusions exemplify the value of the 3D-model presented here and progress our understanding of glycosaminoglycan molecular properties.
What have you learned in the past 10 years (2015)

Some medical specialties are exploring the possibility of abolishing recertification examinations every 10 years in favor of other alternatives. Is ophthalmology next?
Bootstrap learning via modular concept discovery (2013)

Suppose a learner is faced with a domain of prob-lems about which it knows nearly nothing. It does not know the distribution of problems, the space of solutions is not smooth, and the reward signal is uninformative, providing perhaps a few bits of information but not enough to steer the learner ef-fectively. How can such a learner ever get off the ground? A common intuition is that if the solu-tions to these problems share a common structure, and the learner can solve some simple problems by brute force, it should be able to extract useful com-ponents from these solutions and, by composing them, explore the solution space more efficiently. Here, we formalize this intuition, where the so-lution space is that of typed functional programs and the gained information is stored as a stochastic grammar over programs. We propose an iterative procedure for exploring such spaces: in the first step of each iteration, the learner explores a finite subset of the domain, guided by a stochastic gram-mar; in the second step, the learner compresses the successful solutions from the first step to estimate a new stochastic grammar. We test this procedure on symbolic regression and Boolean circuit learning and show that the learner discovers modular con-cepts for these domains. Whereas the learner is able to solve almost none of the posed problems in the procedure’s first iteration, it rapidly becomes able to solve a large number by gaining abstract knowl-edge of the structure of the solution space. 1
Streptococcus pyogenes Colonization in Children Aged 24–59 Months in the Gambia: Impact of Live Attenuated Influenza Vaccine and Associated Serological Responses (2023)

Asymptomatic S. pyogenes colonization appears modestly increased by LAIV, and may be immunologically significant. LAIV could be used to study influenza-S. pyogenes interactions. Clinical Trials Registration. NCT02972957.
Antybiotyki w dobie narastającej lekooporności (2021)

Jedyna na polskim rynku aktualna książka, w której kompleksowo omówiono temat antybiotyków i lekooporności, czyli globalnego problemu XXI wieku &#8211; zarówno pod kątem historii, klasyfikacji według działania, mechanizmów oporności, sposobów jej przeciwdziałania a także badań mających na celu zastąpienie antybiotyków. Książka skierowana będzie przede wszystkim do biologów, lekarzy, przyrodników, jak również ze względu na temat zanieczyszczenia środowiska antybiotykami i produktami ich degradacji dla studentów ochrony środowiska. <UL> <LI><a href = "https://images.iformat.pl/7B283F6DEB/FCCCAD1A-9612-41C1-A5B5-219608CC1304.epub" download="fragment">Fragment (epub)</a></LI> <LI><a href = "https://images.iformat.pl/7B283F6DEB/46D86385-6E1B-4272-A038-863EC4799314.mobi" download="fragment">Fragment (mobi)</a></LI> </UL>
A one-step intrinsic and extrinsic calibration method for laser line scanner operation in coordinate measuring machines (2009)

A technique for intrinsic and extrinsic calibration of laser line scanners, also called laser triangulation sensors (LTSs), for integration in a coordinate measuring machine (CMM) is presented in this paper. Setting out from the modeling of a commercial LTS for use in a CMM and the algorithms implemented for image capture and processing, with the use of a gauge object, a one-step calibration procedure has been developed to obtain both intrinsic parameters—laser plane, CCD sensor and camera geometry—and extrinsic parameters which relate the LTS's reference system to the CMM's reference system, integrating both mathematical models. This method performs both calibrations in a single step, thus avoiding the digitalization of a reference sphere in order to obtain the extrinsic parameters, or optimization procedures subsequent to LTS calibration. The results obtained in accuracy and repeatability tests performed on gauge geometric primitives attest to the viability of this technique for the integration of LTSs in CMMs.
ChemInform Abstract: Macropolycyclic Polyethers (Cages) and Related Compounds (1992)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.