gebhart/patrepeval huggingface dataset:
Iodine as Acetylation Catalyst in the Preparation of 1,1-Diacetates from Aldehydes (1997)

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTIodine as Acetylation Catalyst in the Preparation of 1,1-Diacetates from AldehydesNabajyoti Deka, Dipok J. Kalita, Ruli Borah, and Jadab C. SarmaView Author Information Natural Products Chemistry Group, Organic Chemistry Division, Regional Research Laboratory, Jorhat 785006, Assam, India Cite this: J. Org. Chem. 1997, 62, 5, 1563–1564Publication Date (Web):March 7, 1997Publication History Received10 September 1996Published online7 March 1997Published inissue 1 March 1997https://doi.org/10.1021/jo961741eCopyright © 1997 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views1078Altmetric-Citations131LEARN 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 InReddit Read OnlinePDF (70 KB) Get e-AlertsSUBJECTS:Aldehydes,Catalysts,Chemical reactions,Organic reactions,Reagents Get e-Alerts
Wesselsite, SrCu[Si<sub>4</sub>O<sub>10</sub>], a further new gillespite-group mineral from the Kalahari Manganese Field, South Africa (1996)

Abstract Wesselsite, SrCu[Si 4 O 10 ], is a new mineral species from the Wessels mine, Kalahari Manganese Field, South Africa, and it belongs to the gillespite group. Wesselsite is tetragonal, space group P 4/ ncc ; the unit cell parameters, refined from Gandolfi film data, are a = 7.366(1), c = 15.574(3) Å V = 845.01 Å 3 . The strongest lines are ( d obs / l obs / hkl ) (7.79/35/002), (4.33/20/112), (3.89/20/004), (3.44/40/104), (3.33/100/202), (3.12/55/114), (3.03/50/212), (2.68/25/204), (2.61/30/220) and (2.32/30/116). Wesselsite is associated with hennomartinite, embedded in a matrix of sugilite, xonotlite, quartz and pectolite. Microprobe analyses of 111 samples show that it is the end-member of a solid solution series with effenbergerite, BaCu[Si 4 O 10 ], with substitutions of Sr by Ba up to 50 mol.%. Wesselsite forms tiny subhedral plates in sizes not exceeding 50 × 50 × 5 µm, arranged in clusters of up to 200 µm. It shows a perfect cleavage parallel to {001}, has blue colour, white to light blue streak, and is uniaxial negative with ω = 1.630(2), ε = 1.590(5), strongly pleochroic from blue (ω) to pale blue (ε). The calculated density is 3.32 g cm −3 , the measured density is 3.2(1) g cm −3 .
Impact of shaving and anti‐perspirant use on the axillary vault (2007)

Shaving the axilla is a regular part of the personal care regime for many women in Europe, North and South America. To assess the impact of shaving on underarm skin, a series of investigations were carried out, in which the thickness of the axillary vault and fossa were measured using optical coherence tomography (OCT), and underarm shaving debris was collected for study. The response of the axilla to histamine iontophoresis was also investigated. Additionally, a study was carried out to investigate the impact of a novel anti-perspirant roll-on formulation on irritation and self-perceived sensory properties of the axilla. The results clearly demonstrate that shaving the underarm consistently removes skin (stratum corneum) as well as axillary hair (with a mean value of 36.1% of the debris being skin). OCT measurements demonstrated that in shaved areas of the axilla, epidermal thickness is higher than in unshaved areas. In response to histamine, wheal and flare were both found to be greater in the shaved axilla, when compared with an unshaved control, but flare in the fossa was greater than that in the vault. On the basis of these results, we propose that the axillary vault has adapted to frequent shaving, notably by the development of a thickened epidermis. However, this adaptation is often not sufficient to fully protect the axilla from damage and irritation resulting from hair removal (shaving). In these instances, we have demonstrated that use of a novel anti-perspirant roll-on formulation containing glycerol and sunflower seed oil was able to reduce the impact of shaving-induced irritation and improve self-assessment of axillary condition.
Highly conserved genes in Geobacter species with expression patterns indicative of acetate limitation (2008)

Analysis of the genome of Geobacter sulfurreducens revealed four genes encoding putative symporters with homology to ActP, an acetate transporter in Escherichia coli. Three of these genes, aplA, aplB and aplC, are highly similar (over 90 % identical) and fell within a tight phylogenetic cluster (Group I) consisting entirely of Geobacter homologues. Transcript levels for all three genes increased in response to acetate limitation. The fourth gene, aplD, is phylogenetically distinct (Group II) and its expression was not influenced by acetate availability. Deletion of any one of the three genes in Group I did not significantly affect acetate-dependent growth, suggesting functional redundancy. Attempts to recover mutants in which various combinations of two of these genes were deleted were unsuccessful, suggesting that at least two of these three transporter genes are required to support growth. Closely related Group I apl genes were found in the genomes of other Geobacter species whose genome sequences are available. Furthermore, related genes could be detected in genomic DNA extracted from a subsurface environment undergoing in situ uranium bioremediation. The transporter genes recovered from the subsurface were most closely related to Group I apl genes found in the genomes of cultured Geobacter species that were isolated from contaminated subsurface environments. The increased expression of these genes in response to acetate limitation, their high degree of conservation among Geobacter species and the ease with which they can be detected in environmental samples suggest that Group I apl genes of the Geobacteraceae may be suitable biomarkers for acetate limitation. Monitoring the expression of these genes could aid in the design of strategies for acetate-mediated in situ bioremediation of uranium-contaminated groundwater.
Descriptive study of the use of a specialty bed in the United Kingdom. (1992)

A survey of 788 patients on a specialty support surface, Pegasus Airwave System, in 119 hospitals or hospices in the United Kingdom during February and March 1991 provided the largest database on the current pattern of use of any pressure-relieving mattress. Fifty-four percent (n = 428) of the patients had established pressure ulcers. Seventy-nine percent (n = 261) of the patients on the specialty support surface for longer than five days showed visible signs of improvement. Nurses and patients expressed satisfaction with the support surface.(ABSTRACT TRUNCATED AT 250 WORDS)
Notes: Seasonal Changes in Electrical Resistance of Inner Bark in Red Oak, Red Maple, and Eastern White Pine (1979)

Abstract Electrical resistance of inner bark in Acer rubrum , Quercus rubra , and Pinus strobus recorded from March to December 1977 in New Hampshire was lowest in June and July, and increased in September and October. January and February data were not used because some inner bark tissues were frozen. The seasonal electrical resistance patterns of the three species were similar. Forest Sci. 25:282-286.
B. Fall of Intradiscal Pressure with Laser Ablation (1995)

In an experimental system where intradiscal pressure could be measured before and after laser ablation, we found that there was a significant fall of intradiscal pressure after 1000 J of Nd:YAG laser energy was delivered to fresh cadaver discs. That this was not due to fenestration was demonstrated by control experiments using an identical system, but without turning on the laser. Here, there was no significant fall of intradiscal pressure.
Stimulated IR emission of Nd/sup 3 +/ ions in nonstoichiometric cubic fluorides (1985)

This paper is devoted to the stimulated-emission spectroscopy of Nd/sub 3//sup +/ ions in the IR region corresponding to two lasing channels in disordered fluorite phases based on CdF/sub 2/, and the trifluorides of gadolinium and lutetium. Synthesis conditions are found and single crystals of the nonstoichiometricfluorides Cd /SUB 1-x/ (Gd,Lu) /SUB x/ F /SUB 2+x/ with Nd/sup 3 +/ ions and a fluorite structure are grown. Stimulated emission of the activator ions are excited in these phases at 300 degrees K in two lasing channels.
Multiple Polychlorinated Biphenyl Transformation Systems in the Gram-Positive Bacterium Rhodococcus sp. Strain RHA1 (1995)

The cloned bphA gene of the polychlorinated biphenyl (PCB) degrader Rhodococcus sp. strain RHA1 was expressed in Rhodococcus erythropolis IAM1399 cells, resulting in the transformation of di-, tri-, and tetrachlorobiphenyls. Disruption of the bphA1 gene in RHA1 resulted in a lack of growth on biphenyl and a loss of PCB transformation activity. However, the bphA1 insertion mutant of RHA1, designated RDA1, retained the ability to transform PCB congeners when grown on ethylbenzene as its carbon source. It also transformed 4-chlorobiphenyl to 4-chlorobenzoate, although it was suspected to be deficient in bphB and bphC gene activities as well as bphA. This suggested that an alternative PCB degradation system distinct from the one encoded by the cloned bph genes was present.
A GUIDE TO BASIC PULSE-RADAR MAXIMUM-RANGE CALCULATION. PART 1. EQUATIONS, DEFINITIONS, AND AIDS TO CALCULATION (1969)

Abstract : The basic equation for pulse-radar maximum-range calculation is presented in a form convenient for numerical computation. Charts, graphs, tables, and auxiliary equations are presented for evaluation of the various factors in the range equation. Included are graphs for the required signal-to- noise ratio as a function of probability of detection, false-alarm probability, and number of pulses integrated, for both nonfluctuating and fluctuating (Swerling Cases 1 and 3) echoes. Also treated are the effects of receiver bandwidth, antenna and receiver noise, sea-reflection interference, refraction and absorption by the atmosphere, and various system losses. Standard definitions of range-equation quantities are given. The effects of jamming and clutter echoes are treated briefly, as are also cumulative probability of detection and accuracy of radar range prediction. A systematic procedure for range calculation, employing a work sheet, is presented.
Functional roles of Tryptophan residues in diketoreductase from Acinetobacter baylyi (2012)

Diketoreductase (DKR) from Acinetobacter baylyi contains two tryptophan residues at positions 149 and 222. Trp-149 and Trp-222 are located along the entry path of substrate into active site and at the dimer interface of DKR, respectively. Single and double substitutions of these positions were generated to probe the roles of tryptophan residues. After replacing Trp with Ala and Phe, biochemical and biophysical characteristics of the mutants were thoroughly investigated. Enzyme activity and substrate binding affinity of W149A and W149F were remarkably decreased, suggesting that Trp-149 regulates the position of substrate at the binding site. Meanwhile, enzyme activity of W222F was increased by 1.7-fold while W222A was completely inactive. In addition to lower thermostability of Trp-222 mutants, molecular modeling of the mutants revealed that Trp-222 is vital to protein folding and dimerization of the enzyme.
Linear tuning of charge carriers in graphene by organic molecules and charge-transfer complexes (2010)

The electronic interactions of several organic donor/acceptor molecules or combination of these molecules (hereafter known as ``charge-transfer complexes'') with graphene have been investigated by first-principles calculations and photoemission spectroscopy experiments. It is found that the doping behavior of graphene can be controlled by the ratio of donor and acceptor molecules in the form of their charge-transfer complexes. The interfacial electronic structure of molecules adsorbed on graphene is dominated by the charge-transfer mechanism. The changes in work function of graphene modified by organic molecules are discussed in comparison with experiments and they are in good agreement with experimental data. Our results show that functionalization of graphene by acceptor/donor molecules and their charge-transfer complexes is an efficient way to control the doping behavior of graphene.
A k-nearest neighbor based algorithm for multi-label classification (2005)

In multi-label learning, each instance in the training set is associated with a set of labels, and the task is to output a label set whose size is unknown a priori for each unseen instance. In this paper, a multi-label lazy learning approach named ML-kNN is presented, which is derived from the traditional k-nearest neighbor (kNN) algorithm. In detail, for each new instance, its k-nearest neighbors are firstly identified. After that, according to the label sets of these neighboring instances, maximum a posteriori (MAP) principle is utilized to determine the label set for the new instance. Experiments on a real-world multi-label bioinformatic data show that ML-kNN is highly comparable to existing multi-label learning algorithms.
Glycolipids of <i>Mycobacterium tuberculosis</i> Strain H37Rv Are Potential Serological Markers for Diagnosis of Active Tuberculosis (2005)

A simple and cost-effective diagnostic tool (TB Screen Test) for the screening of patients with pulmonary and extrapulmonary tuberculosis and for differentiation of those individuals from individuals without tuberculosis, other common infections, and healthy controls has been developed. The serological responses of purified mycobacterial glycolipid antigens were examined by a liposome agglutination assay. The assay was able to detect very low antiglycolipid antibody concentrations in the infected individuals. The sera from the tuberculosis patient group had significantly higher concentrations of antiglycolipid antibody than the sera from uninfected control subjects, with 94% sensitivity and 98.3% specificity. Glycolipids of Mycobacterium tuberculosis H37Rv antigens were isolated, purified, and characterized. After interchelation with liposome particles, these purified antigens specifically bound to the antiglycolipid antibodies present in the sera of patients with tuberculosis, resulting in the formation of a blue agglutination. This protocol clearly differentiates healthy controls and M. bovis BCG-vaccinated subjects from those with active tuberculosis. The resultant diagnostic tool, the TB Screen Test, is more economical and rapid (4 min) than other currently available products and can be used for the mass screening of a heavily afflicted population.
Percentage of anti‐CD4 monoclonal antibody‐coated lymphocytes in the rheumatoid joint is associated with clinical improvement. Implications for the development of immunotherapeutic dosing regimens (1996)

These results demonstrate the importance of antibody dosage and treatment regimen in determining clinical benefit. Our findings suggest that the percentage of cM-T412-coated CD4+ lymphocytes in SF may be a predictor of clinical outcome.
Deep Interest Network for Click-Through Rate Prediction (2018)

Click-through rate prediction is an essential task in industrial applications, such as online advertising. Recently deep learning based models have been proposed, which follow a similar Embedding&MLP paradigm. In these methods large scale sparse input features are first mapped into low dimensional embedding vectors, and then transformed into fixed-length vectors in a group-wise manner, finally concatenated together to fed into a multilayer perceptron (MLP) to learn the nonlinear relations among features. In this way, user features are compressed into a fixed-length representation vector, in regardless of what candidate ads are. The use of fixed-length vector will be a bottleneck, which brings difficulty for Embedding&MLP methods to capture user's diverse interests effectively from rich historical behaviors. In this paper, we propose a novel model: Deep Interest Network (DIN) which tackles this challenge by designing a local activation unit to adaptively learn the representation of user interests from historical behaviors with respect to a certain ad. This representation vector varies over different ads, improving the expressive ability of model greatly. Besides, we develop two techniques: mini-batch aware regularization and data adaptive activation function which can help training industrial deep networks with hundreds of millions of parameters. Experiments on two public datasets as well as an Alibaba real production dataset with over 2 billion samples demonstrate the effectiveness of proposed approaches, which achieve superior performance compared with state-of-the-art methods. DIN now has been successfully deployed in the online display advertising system in Alibaba, serving the main traffic.
[Analysis of plasma amino acids-tryptophan and tyrosine ratios to other large neutral amino acids in manic-depressive illness]. (1994)

On the basis of the hypothesis of the brain monoamine metabolism abnormality in manic-depressive illness, plasma tryptophan (TRP) ratio, an indicator of brain 5HT level, and the ratios of other neutral amino acids (tyrosine (TYR), valine, isoleucine, leucine, and phenylalanine) were determined in manic and depressed patients. Our results suggest that, in manic-depressive illness, there might be abnormalities in the metabolism of neutral amino acids, mainly of TRP and TYR, and that abnormality of TRP might be related to the depressive symptoms, and that plasma TRP and TYR ratios might be important indicators for determining the efficacy of some anti-manic and anti-depressive drugs.
Dynamics of Multibody Systems (2005)

Dynamics of Multibody Systems, 3rd Edition, first published in 2005, introduces multibody dynamics, with an emphasis on flexible body dynamics. Many common mechanisms such as automobiles, space structures, robots and micromachines have mechanical and structural systems that consist of interconnected rigid and deformable components. The dynamics of these large-scale, multibody systems are highly nonlinear, presenting complex problems that in most cases can only be solved with computer-based techniques. The book begins with a review of the basic ideas of kinematics and the dynamics of rigid and deformable bodies before moving on to more advanced topics and computer implementation. This revised third edition now includes important developments relating to the problem of large deformations and numerical algorithms as applied to flexible multibody systems. The book's wealth of examples and practical applications will be useful to graduate students, researchers, and practising engineers working on a wide variety of flexible multibody systems.
ISAID-a methodology for automated analog IC design (2002)

A methodology called ISAID for the automated generation of analog integrated circuit designs is presented. The methodology makes use of a hierarchical design procedure to break down the required system specifications into transistor descriptions. The methodology provides a correction procedure which enables designs which fail to meet the required specifications when simulated or laid out to be corrected either by altering circuit component sizes or by making changes in the designed topology itself. Some approaches to analog IC design are briefly reviewed. A two-stage operational amplifier design example is presented.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Comparison of Two Adaptive Methods for Time Delay Estimation (1984)

Two adaptive algorithms for estimating the time delay between two-sensor outputs are compared. These methods are similar in that they employ the least mean square (LMS) gradient approach to estimate the time difference of arrival to two sensors. However, they involve the LMS gradient method in different ways, and thus have different properties. Some theoretical aspects are addressed. Also, they are compared via computer simulations for a variety of cases, including time-varying delay functions corresponding to moving source or receivers.
Selection based on morphological assessment of oocytes and embryos at different stages of preimplantation development: a review (2003)

In contrast to IVF, in ICSI the surrounding cumulus and corona cells must be removed completely, as only denuded oocytes can be successfully manipulated by the holding pipette. This ancillary effect of ICSI allows us to focus on the morphology of preimplantation development from the earliest stages. Early prognosis regarding the developmental fate of oocytes would help to limit a negative impact of culture conditions. However, little evidence is available that non-invasive selection at the oocyte stage (first polar body, granular cytoplasm) may be of prognostic value. Recently, certain patterns of pronuclei (number and the distribution of nucleoli) at the zygote stage were found to correlate with treatment outcome in IVF and ICSI cycles, offering an additional prognostic tool prior to cleavage. As there is evidence that embryo selection on day 2 or 3 based on morphological criteria (fragmentation, number of blastomeres, multinucleation, uneven cleavage) may be imprecise, patients might benefit from extended embryo culture to day 5. However, not all major chromosomal aberrations are incompatible with blastocyst formation, and prolonged culture in vitro does not exclusively select embryos with a normal chromosomal complement. Consequently, special care should be taken to minimize the presence of aneuploid concepti in culture. In addition, multiple selection at different stages of development will be required to filter out the correct 'candidate' embryo which will result in a healthy newborn.
Immunoglobulin G Subclass Responses in Human Cystic and Alveolar Echinococcosis (1994)

Immunoglobulin G (IgG) subclass-specific antibody responses were investigated in both human cystic echinococcosis (CE) and alveolar echinococcosis (AE) by enzyme-linked immunosorbent assay (ELISA) and Western blotting. Sera were tested from 81 CE and 50 AE surgically confirmed cases using partially purified hydatid cyst fluid antigen B (EgB), and crude hydatid cyst fluid (EgCF) from Echinococcus granulosus and a protoscolex extract (EmP) prepared from E. multilocularis metacestodes. Eighty-nine percent of CE patients and 94% of AE patients were seropositive for total IgG antibodies. The dominant IgG antibody isotype in both CE and AE was IgG4, for which 73% of CE and 84% of AE cases were seropositive in the ELISA. Anti-Echinococcus IgG1 antibodies were detected in 58% of CE and 84% of AE patients. Sensitivity for IgG2 and IgG3 was significantly lower for both CE and AE patients. The IgG4 antibodies in CE patients predominantly recognized the E. granulosus antigen B subunits, i.e., at 20, 16 and 12 kD, while IgG1 antibodies primarily bound to the 38-kD subunit of antigen 5 from E. granulosus hydatid fluid. The possible functional significance of an IgG4 response and the potential use of combined assessment of total IgG, IgG1, and IgG4 antibodies in serologic diagnosis and follow-up for human echinococcosis are discussed.