gebhart/patrepeval huggingface dataset:
Bifunctional Single Amino Acid Chelates for Labeling of Biomolecules with the {Tc(CO)3}+and {Re(CO)3}+Cores. Crystal and Molecular Structures of [ReBr(CO)3(H2NCH2C5H4N)], [Re(CO)3{(C5H4NCH2)2NH}]Br, [Re(CO)3{(C5H4NCH2)2NCH2CO2H}]Br, [Re(CO)3{X(Y)NCH2CO2CH2CH3}]Br (X = Y = 2-pyridylmethyl; X = 2-pyridylmethyl, Y = 2-(1-methylimidazolyl)methyl; X = Y = 2-(1-methylimidazolyl)methyl), [ReBr(CO)3{(C5H4NCH2)NH(CH2C4H3S)}], and [Re(CO)3{(C5H4NCH2)N(CH2C4H3S)(CH2CO2)}] (2002)

The reactions of a series of potentially tridentate ligands, derived from single amino acids or amino acid analogues, with [NEt(4)](2)[ReBr(3)(CO)(3)] have been investigated. The model compounds [Re(CO)(3)Br[(2-pyridylmethyl)NH(2)]] (1) and [Re(CO)(3)[(2-pyridylmethyl)(2)NH]]Br (2) were also prepared and structurally characterized. With ligands possessing two pyridyl appendages, (2-pyridylmethyl)(2)NX (X = -CH(2)CO(2)H, -CH(2)CO(2)Et, -CH(2)CH(2)CO(2)H, -CH(2)CH(2)CO(2)Et, -CH(2)CH(2)CH(2)CH(2)CH(NHCO(2)(t)Bu)CO(2)H), complexes of the type [Re(CO)(3)(ligand)]Br (3-6) were isolated. All possess the fac-[Re(CO)(3)N(3)] coordination geometry in the cationic molecular unit. Similarly, the ligands with the imidazolyl arms (2-pyridylmethyl)[2-(1-methylimidazolyl)methyl]NCH(2)CO(2)Et and [2-(1-methylimidazolyl)methyl](2)NCH(2)CO(2)Et, complexes 7 and 8 of the same [Re(CO)(3)(ligand)]Br type, were prepared. Replacement of one pyridyl arm with a thiophene group yielded the complex [Re(CO)(3)[(2-pyridylmethyl)N(CH(2)CO(2))(2-thiophenemethyl)]] (9), while additional substitution of X = -H for -CH(2)CO(2)H yielded [Re(CO)(3)Br[(2-pyridylmethyl)NH(2-thiophenemethyl)]] (10). In both 9 and 10, the thiophene is uncoordinated and pendant, and the derivatives display fac-[Re(CO)(3)N(2)O] and fac-[Re(CO)(3)N(2)Br] coordination geometries, respectively. Crystal data: C(9)H(8)BrN(2)O(3)Re (1), triclinic P1, a = 8.156(1) A, b = 12.077(1) A, c = 12.945(2) A, alpha = 92.183(3) degrees, beta = 107.848(3) degrees, gamma = 100.955(7) degrees, V = 1185.1(3) A, Z = 4; C(15)H(13)BrN(3)O(3)Re (2), tetragonal P4(1), a = 8.6095(3) A, c = 22.228(1) A, V = 1646.9(1) A(3), Z = 4; C(17)H(14)BrN(3)O(5)Re.CH(3)OH (3), monoclinic P2(1)/m, a = 7.4425(3) A, b = 9.7596(4) A, c = 14.0646(6) A, beta = 97.753(1) degrees, V = 1012.26(7) A(3), Z = 2; C(19)H(19)BrN(3)O(5)Re (4), tetragonal P42(1)c, a = 16.895(3) A, c = 15.042(3) A, V = 4293.7(13) A(3), Z = 8; C(18)H(20)BrN(4)O(5)Re.CH(3)OH.H(2)O (7), monoclinic P2(1)/c, a = 10.2816(4) A, b = 30.386(1) A, c = 14.5810(6) A, beta = 99.868(1) degrees, V = 4488.03(3) A(3), Z = 8; C(17)H(21)BrN(5)O(5)Re.0.5CH(2)Cl(2).0.5H(2)O (8), triclinic P1, a = 11.5363(6) A, b = 13.1898(6) A, c = 16.4933(8) A, alpha = 89.356(1) degrees, beta = 74.907(1) degrees, gamma = 76.216(1) degrees, V = 2349.8(2) A(3), Z = 4; C(16)H(13)N(2)O(5)ReS (9), monoclinic P2(1)/c, a = 17.2072(7) A, b = 8.5853(4) A, c = 11.5607(5) A, beta = 101.73(1) degrees, V = 1672.2(1) A(3), Z = 4; and C(14)H(12)N(2)O(3)BrReS (10), triclinic P1, a = 7.5585(3) A, b = 9.7713(4) A, c = 11.7103(4) A, alpha = 109.566(1) degrees, beta = 98.298(1) degrees, gamma = 100.925(1) degrees, V = 779.73(5) A(3), Z = 2.
ChemInform Abstract: Sol‐Gel‐Derived TiO2 Film Semiconductor Electrode for Photocleavage of Water. Preparation and Effects of Postheating Treatment on the Photoelectrochemical Behavior. (1991)

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.
Antagonism of androgen action in prostate tumor cells by retinoic acid (1994)

Recent studies have demonstrated that retinoic acid (RA) can repress the growth of human prostatic epithelial cells. Since the proliferation of prostate cells is highly dependent on androgen stimulation, presumably via its cognate receptor, we investigated the effects of RA on the expression of the androgen receptor and other androgen-regulated genes in the human prostatic adenocarcinoma cell line LNCaP. Using a radioligand binding assay, we found that androgen-binding activity was reduced 30-40% in cells treated with 10(-5) M RA plus 6 nM dihydrotestosterone (DHT), as compared to cells with the androgen alone. Moreover, the reduction of the androgen receptor (AR) was not accompanied by alteration of the ligand-binding affinity. Concomitant changes in the function of AR were manifested by a dramatic reduction in AR-mediated transcription activity in a transfection experiment. Androgen-induced levels of both prostate-specific antigen (PSA) and human glandular kallikrein-1 (hKLK2) mRNAs were significantly repressed by RA in a dose- and time-dependent manner. Consistent with this finding, androgen induction of PSA glycoprotein was also repressed by RA, with maximal inhibition occurring at 10(-5) M. These data suggest that the suppression of proliferation and function of prostatic cells by RA may be via modulatory effects on the AR.
Polar compounds: a quantitative indicator for life cycle assessment during protracted semi‐continuous deep fat frying simulation (2021)

Summary Total Polar Compound (TPC) analysis was used to evaluate fry life cycle of oils and shortenings with differing fatty acids compositions, and to understand if longer trisaturated material (Tribehenin), could influence total fry life, during protracted, semi‐continuous deep frying simulations. Results showed, when TPC reached 25% max, the TOTOX and FFA revealed correlated values. However, both FFA and Totox were deemed unreliable indicators of oil quality. TPCs were more acutely accurate, especially during oil filtration and top‐up procedures, where peak TPC onset showed stronger correlation for assessing oil degradation. Unsaturated frying oil, SBO (PUFA based), resulted with the shortest fry life of 132 fry‐cycles; POL (MUFA based) 138 fry‐cycles and MPS (MUFA based + Tribehenin) achieving up to 146 fry‐cycles, suggesting Tribehenin may apparently extend fry life longevity.
Network-Controlled Repeaters vs. Reconfigurable Intelligent Surfaces for 6G mmW Coverage Extension: A Simulative Comparison (2023)

Network-controlled repeaters (NCR) and reconfigurable intelligent surfaces (RIS) are being considered by the third generation partnership project (3GPP) as valid candidates for range extension in millimeter-wave (mmW, 30-300 GHz frequency) 5G and 6G networks, to counteract large path and penetration losses. Nowadays, there is no definite answer on which of the two technologies is better for coverage extension, since existing comparative studies focused either on communication-related metrics only or on very large-scale analysis, without physical layer details or environmental considerations. This paper aims at comparing NCR and RIS solutions in terms of coverage in an urban scenario. Numerical results suggest a possible usage of both technologies, showing that preferring RIS or NCR depends not only on their physical capabilities and cost (e.g., the number of antenna elements, the angular separation between panels for NCR, etc.) but also on environment geometry.
The Location of o- and m-Xylene in Silicalite by Powder X-ray Diffraction (2000)

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionThe Location of o- and m-Xylene in Silicalite by Powder X-ray DiffractionSankar Nair and Michael TsapatsisCite this: J. Phys. Chem. B 2001, 105, 6, 1276Publication Date (Web):November 10, 2000Publication History Published online10 November 2000Published inissue 1 February 2001https://pubs.acs.org/doi/10.1021/jp003504shttps://doi.org/10.1021/jp003504scorrectionACS PublicationsCopyright © 2001 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views258Altmetric-Citations3LEARN 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 PDF (24 KB) Get e-Alertsclose Get e-Alerts
The Structural Identification of the Olefinic Components of Japanese Lac Urushiol1 (1954)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Structural Identification of the Olefinic Components of Japanese Lac Urushiol1S. V. Sunthankar and Charles R. DawsonCite this: J. Am. Chem. Soc. 1954, 76, 20, 5070–5074Publication Date (Print):October 1, 1954Publication History Published online1 May 2002Published inissue 1 October 1954https://pubs.acs.org/doi/10.1021/ja01649a017https://doi.org/10.1021/ja01649a017research-articleACS PublicationsRequest reuse permissionsArticle Views182Altmetric-Citations63LEARN 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-Alertsclose Get e-Alerts
Open-Pinned-Phase Charge-Coupled Device (1992)

Acceptable quantum efficiency obtained without back illumination and back-side thinning. NEW CCD technology referred to as open-pinned-phase (OPP) invented to unite best attributes of multiphase and virtual-phase technologies. Delivers high front-side sensitivity in conjunction with ultralow-signal-level performance.
Use of petroleum-contaminated drilling wastes as sub-base material for road construction (2000)

In this study, petroleum-contaminated drilling wastes were stabilized by mixing pozzolanic fly ash, lime and cement with them so they could be used as sub-base materials for road construction. This stabilization produced physically, mechanically and chemically stabilized new mixtures. The laboratory study consisted of unconfined compressive strength, permeability, California bearing ratio, freeze/thaw (durability) and leachate on compacted stabilized samples, pH, electrical conductivity, cation exchange capacity and total metal contents on stabilized mixtures. Significant increases in the unconfined compressive strength, California bearing ratio, durability and pH were obtained by treating lime, fly ash and cement with petroleum drilling wastes. Significant decreases were obtained in electrical conductivity, cation exchange capacity, oil content and total metal concentrations both in mixtures and in leachate. The best result in all of the tests conducted was obtained with petroleum-contaminated soil stabilized with 20% lime, 10% fly ash and 5% cement. This mixture can be effectively and safely used as sub-base material.
Radiation design in computed tomography via convex optimization (2023)

Proper X-ray radiation design (via dynamic fluence field modulation, FFM) allows to reduce effective radiation dose in computed tomography without compromising image quality. It takes into account patient anatomy, radiation sensitivity of different organs and tissues, and location of regions of interest. We account all these factors within a general convex optimization framework.
Augmentation of Bone Healing by Specific Frequency and Amplitude Compressive Strains (2009)

A considerable proportion of bone fractures show signs of delayed or impaired healing. A novel device that applies interfragmentary compressive forces to the fracture site was developed and evaluated for its effect on fracture healing. The midshafts of the right tibias of 16 rabbits were osteotomized, leaving a 2-mm gap. A 4-pin, double-bar external fixator was fixed to the tibias. Interfragmental compressive displacement of 0.5 mm with a frequency of 1 Hz was applied 15 minutes per day. Mechanical stimulation began 1 week postoperatively and continued for 2 and 3 weeks. Control animals received no stimulation. Callus quality and area were assessed by radiographs. Maximum force and total energy absorbed up to failure of the healed bones were determined using a standard 3-point bending test. Postmortem radiographic examinations showed that mean radiographic measures in both anteroposterior and mediolateral views was significantly larger in experimental groups than controls (P=.029). Mechanical measures of the healed bones demonstrated that mean values of maximum force and absorbed energy were significantly higher in the experimental groups than in the control groups (P=.029). Both radiographic and mechanical measures were significantly higher after 3 weeks compared to 2 weeks of receiving stimulation (P<.05).
Efficacy of copper and silver ions with iodine in the inactivation of Pseudomonas cepacia (1992)

Alternatives to chlorination of water have been sought for reasons which include trihalomethane formation, possible bacterial regrowth, the high concentrations of chlorine required in certain circumstances, and the taste, odour and bodily irritation in chlorine-treated water. Electrolytically generated Cu and Ag ions at low levels, in addition to very low chlorine concentrations, have been suggested as an alternative to routine chlorination. We have examined the combination of Cu and Ag ions with low levels of iodine. Pseudomonas cepacia was grown either in rich medium or under nutrient restriction prior to disinfection. Survival of the organism and its ability to regrow after treatment as well as the effects of varying buffers, metal ion and iodine concentrations were determined. Low concentrations of metal ions (100 ppb Cu and 11 ppb Ag) and iodine (200 ppb) were more effective than either metal ions or iodine alone against Ps. cepacia grown on rich agar or in low nutrient buffer. After iodination, buffer-grown suspensions recovered to their original cell concentrations within 7 d. When Cu and Ag ions were used with or without iodine, regrowth was prevented. The results show that low concentrations of Cu and Ag in combination with iodine permit effective disinfection of bacteria after cultivation on either rich media or under nutrient restriction. These results, along with published data, suggest that the combination of these metals with halogenation may have applications in the disinfection of both recreational and potable water.
Remote Overhead Video Extendable Robot (1989)

The Savannah River Plant (SRP) production of nuclear materials utilizes a waste storage farm, for radioactive waste products. The operation of the waste farm requires manipulation of piping and vessels within below ground pump pits, by overhead crane. A resultant potential exists for personnel exposure to radiation when any direct viewing is used to control crane operations. The Savannah River Laboratory (SRL) has developed a Remote Overhead Video Extendable Robot (ROVER) as a means of reducing the exposure of personnel to nuclear radiation in the waste storage farm. ROVER has been developed, and turned over to the plant area for usage over the pump pits. All operation and control of ROVER are from a remotely located Video Van, located well away from the potentially hazardous operations. 4 figs.
The production of acetylene by a carbon arc (1979)

This study continues the work with the reactor built by Ward for the production of acetylene by ablating carbon at the tip of a graphite anode with a high intensity D.C. arc, into a hydrogen atmosphere. This study attempts to combine data sought for the technical evaluation of a commercial process with an understanding of the conditions existing at the anode tip region and in the high temperature gas stream of the reactor. From this an insight as to how the carbon is ablated and how acetylene is formed and preserved in the reactor is obtained. Note addenda front and back.
Hypercontractile cardiac states simulating hypertrophic cardiomyopathy. (1977)

Hypertrophic cardiomyopathy (HCM) or idiopathic hypertrophic subaortic stenosis (IHSS) has been defined as an autosomal dominant myocardial disease characterized by specific physical findings, echocardiographic features, asymmetric septal hypertrophy and disordered myocardial architecture. Echocardiographic and scintiphotographic studies failed to reveal evidence of asymmetric septal hypertrophy in four patients with systolic anterior movement of the mitral valve and the typical ausculatory and peripheral pulse abnormalities characteristic of HCM. Postmortem examimination in one patient demonstrated mild concentric left ventricular hypertrophy and a normal arrangement of myocardial muscle fibers. These observations in four patients demonstrate that both systolic anterior movement of the mitral valve and the physical findings characteristic of HCM are not specific for the autosomal dominant myocardial disease characterized by asymmetric septal hypertrophy and abnormal septal histology.
Performance of Euclidean-Metric MLSD Receiver in the Presence of Channel Mismatch Caused by Nongaussian Noise (2010)

In this paper we present a theory of the bit error rate (BER) of Euclidean metric-based maximum likelihood sequence detectors (EM-MLSD) in the presence of channel mismatch caused by nongaussian noise. Although the theory is general, here we focus on the effects of quantization noise (QN) added by the front-end analog-to-digital converter (ADC) typically used in DSP based implementations of the receiver. Numerical results show a close agreement between the predictions of the theoretical analysis and computer simulations. As a practical application of the proposed theory, we investigate the performance of EM-MLSD in 10Gb/s Ethernet receivers for multimode optical fibers. Since the BER required in this application is below 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-12</sup> , which precludes the use of computer simulations to estimate BER, a theoretical study of the MLSD performance including the combined effects of the channel dispersion and QN, becomes necessary. We present numerical results for the three stressors specified by the 10GBASE-LRM standard. Our study shows that the impact of the QN added by the ADC on the performance depends strongly on the channel dispersion (i.e., the stressor).
Disk record players (1981)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Brian P. Taylor, David J. Davis, Roy N. Wasdell; Disk record players. J. Acoust. Soc. Am. 1 June 1981; 69 (6): 1867. https://doi.org/10.1121/1.385855 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAcoustical Society of AmericaThe Journal of the Acoustical Society of America Search Advanced Search |Citation Search
Scombroid poisoning--recapitulation on the role of histamine. (1977)

The histamine content and the total vagal stimulating activities in various fish samples involved in an outbreak of food poisoning were compared. There was a close correlation between the two levels and there was lack of potentiation between histamine and other non-active fractions. The role of histamine in scombroid poisoning is discussed in the light of these results.
A multiple course trial of desferrioxamine in chronic progressive multiple sclerosis. (2000)

Chronic progressive multiple sclerosis (MS) is a debilitating disease that is often refractory to treatment. We have previously published a pilot study using a single 2-week course of the iron chelating drug, desferrioxamine (DFO), as a candidate drug for treatment of this form of MS. In this study, we gave 9 patients up to 8 courses of this regimen over 2 years. The patients tolerated the medication well. During the study, 1 patient improved, 3 remained stable, and 5 worsened by 0.5 on the Kurtzke expanded disability status scale (EDSS). These results suggest that, while the drug is well tolerated, no effect on disease progression can be identified at this dosage level. A more continuous dosage schedule could be studied as a candidate for treatment in this disease process.
Misregulation of mitotic chromosome segregation in a new type of autosomal recessive primary microcephaly (2011)

Primary autosomal recessive microcephaly (MCPH) is a congenital disorder characterized by a pronounced reduction of brain size and mental retardation. We present here a consanguineous Turkish family clinically diagnosed with MCPH and without linkage to any of the known loci (MCPH1-MCPH7). Autozygosity mapping identified a homozygous region of 15.8 Mb on chromosome 10q11.23-21.3, most likely representing a new locus for MCPH. Although we were unable to identify the underlying genetic defect after extensive molecular screening, we could delineate a possible molecular function in chromosome segregation by the characterization of mitosis in the patients' cells. Analyses of chromosome nondisjunction in T-lymphocytes and fibroblasts revealed a significantly elevated rate of nondisjunction in the patients' cells as compared to controls. Mitotic progression was further explored by immunofluorescence analyses of several chromosome and spindle associated proteins. We detected a remarkable alteration in the anaphase distribution of Aurora B and INCENP, which are key regulators of chromosome segregation. In particular, a fraction of both proteins remained abnormally loaded on chromosomes during anaphase in MCPH patients' cells while in cells of normal control subjects both proteins are completely transferred to the spindle midzone. We did not observe any other alterations regarding cell cycle progression, chromosome structure, or response to DNA damage. Our observations point towards a molecular role of the underlying gene product in the regulation of anaphase/telophase progression possibly through interaction with chromosomal passenger proteins. In addition, our findings represent further evidence for the proposed role of MCPH genes in the regulation of mitotic progression.