gebhart/patrepeval huggingface dataset:
Resiliência e Autoconceito Profissional em Policiais Militares: Um Estudo Descritivo (2012)

O presente trabalho almejou identificar e descrever as percepcoes de resiliencia e de autoconceito profissional em  policiais militares de uma cidade do interior do Estado de Sao Paulo. Participaram do estudo 133 policiais militares,  preponderando individuos do sexo masculino, com idade media de 30 anos (DP= 5,7). Para medida das variaveis  foram utilizadas as escalas de Avaliacao de Resiliencia em sua forma reduzida e a Escala de Autoconceito Profissional.  Os dados foram submetidos a calculos de estatisticas descritivas como medias, desvios-padrao e frequencias.  Os resultados indicaram que os participantes frequentemente se percebem capazes de enfrentar as adversidades da  vida em virtude de sua alta percepcao de persistencia, capacidade de adaptar-se as mudancas e de espiritualidade.  Quanto ao autoconceito, a maior media encontrada foi no fator autoconfianca e, a menor media foi no fator saude,  demonstrando que quase sempre os participantes confiam em si mesmos para realizar seu trabalho e poucas vezes  percebem que o trabalho ou os fatos que o envolvem podem afetar sua saude. Os policiais militares participantes do  estudo possuem bons niveis de resiliencia, sendo, portanto, capazes de enfrentar as adversidades e de aprender com elas, o que lhes e bastante saudavel. Alem disso, possuem bom autoconceito profissional. Destaca-se a importância de  a sociedade local poder contar com policiais militares com estas caracteristicas. Entretanto, esse grupo nao percebe  que o trabalho pode afetar sua saude, talvez por uma atitude de superconfianca, o que preocupa pelos efeitos que esta percepcao pode ter em sua saude e no seu trabalho.
Природа упругопластического инварианта деформации (2018)

Рассмотрен автоволновой механизм развития локализованной пластической деформации кристаллических твердых
Eicosapentaenoic acid productivity of the bacteria isolated from fish intestines. (1988)

Attempts were made to find eicosapentaenoic acid (EPA) -producing microorganisms. Out of some 7, 000 bacterial strains screened, 112 of them showed more or less this activity. Most of them were isolated from intestinal contents of marine fishes which were known to contain high levels of EPA in their body lipid. A bacterial strain isolated from the Pacific mackerel Pneurnatophorus japonicus showed a high productivity of EPA (3.8 to 10.8mg/g dry cells) and also a high ratio of EPA to total fatty acids (27.8 to 36.3%). The strain was Gram-negative, motile, obligate aerobic and short rod-shaped, which we judge it to be a new species close to genus Alteromonas.
Regular perturbation analysis of small amplitude oscillatory dilatation of an interface in a capillary pressure tensiometer (2014)

The dilatational rheology of complex fluid-fluid interfaces is linked to the stability and bulk rheology of emulsions and foams. Dilatational rheology can be measured by pinning a bubble or droplet at the tip of a capillary, subjecting the interface shape to small amplitude oscillations, and recording the resulting pressure jump across the interface. The complex dilatational modulus is obtained by differentiating the interfacial stress with respect to the area change of the interface. In this paper, we perform a regular asymptotic expansion to analyze the interface response in pressure-controlled capillary pressure tensiometers to determine the dilatational modulus as a function of the measured radius of curvature. We show that small amplitude oscillatory dilation of a spherical bubble is neither stress nor strain rate controlled. The resulting dilatational modulus contains contributions from both surface tension effects as well as extra stresses. Depending on the specifics of the interface, each contribution can be a function of the dilation rate and the radius of the bubble. Thus, the radius of curvature can be used as a control parameter with which to separate surface tension and interfacial rheology effects, aiding in validation of interfacial constitutive models. We examine the limits of validity of the small amplitude assumption and provide guidelines for determining the operating limits of a capillary pressure tensiometer. Finally, we compare several existing devices, including a microtensiometer we developed previously that oscillates the pressure inside small (R ∼ 10 μm) droplets.
Effective Mucosal Immunity: Current Concepts for Vaccine Delivery and Immune Response Analysis (1994)

It is now established that the mucosal immune system is a separate entity and is regulated in a different fashion than that in peripheral lymphoid tissues (the systemic immune system). In this brief review, five selected areas within the field of mucosal immunity are discussed in the context of the goals for vaccines for the Children's Vaccine Initiative.
New ranging algorithm for FM/CW radars (2002)

A new ranging algorithm for frequency modulated/continuous wave (FM/CW) radars is given. This algorithm is near optimal, very robust, does not depend on the type of modulation, and is fairly easy to compute. An example of an older algorithm based on sinusoidal frequency modulation (FM) used on the MK-95 CW radar is given to illustrate shortcomings in typical older algorithms and for comparison purposes. The characteristics of the new ranging algorithm and test results from the MK-95 radar are provided. The actual target range and the one calculated using the new ranging algorithm differed by less than 1%.
ChemInform Abstract: Copper‐Catalyzed Direct Amination of Halo(hetero)arenes with Sodium Azide as the Amino Source (2012)

Abstract Review: 45 refs.
Natural and Fission-produced Radioactivity in Four Indiana Soils (1962)

Continued testing of nuclear weapons and increasing developments in reactors for use in power production have caused growing concern about the levels of fission-produce radioactivity in the earth's surface. In order to establish reference points for the levels of natural and fissionproduced radioactivity in Indiana, bulk samples of the 0 to 6'' layer of four well-characterized soils were collected for determination of gamma activities. Periodic checking of samples from these sites will provide information on the build-up of radioactivity. Specific isotope analyses are given. (auth)
Preparation and characterization of pure oligo(ethylene glycol)s. 2 (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and characterization of pure oligo(ethylene glycol)s. 2Shinichi Kinugasa, Akiko Takatsu, Hiroshi Nakanishi, Hisae Nakahara, and Shigeru HattoriCite this: Macromolecules 1992, 25, 19, 4848–4853Publication Date (Print):September 1, 1992Publication History Published online1 May 2002Published inissue 1 September 1992https://pubs.acs.org/doi/10.1021/ma00045a003https://doi.org/10.1021/ma00045a003research-articleACS PublicationsRequest reuse permissionsArticle Views150Altmetric-Citations22LEARN 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
Cell proliferation-cephamycin biosynthesis relationship in the culture of Streptomyces lactamdurans L 2/6: phosphate regulation. (1986)

During batch cultivation of Streptomyces lactamdurans a diauxic growth has been shown taking into consideration dry cell mass, protein, and DNA determination. This phenomenon was connected with substantial changes in environmental conditions such as concentrations of ammonia and amino nitrogen, soluble inorganic phosphate and pH. The antibiotic production was preceded by the preparatory phase occurring at the beginning of the second growth phase. A hypothetical pattern of cell physiology in the curse of cephamycin fermentation is discussed. An essential part in the biphasic cell growth and the induction of antibiotic synthesis in this model is played by phosphate depletion in the medium.
Albumen Freshness Assessment by Combining Visible Near-Infrared Transmission and Low-Resolution Proton Nuclear Magnetic Resonance Spectroscopy (2007)

Recently, some nondestructive methods for the assessment of albumen freshness were developed. Among others, visible near-infrared transmission spectroscopy and low-resolution proton nuclear magnetic resonance (LR (1)H NMR) measurements were proposed. This study was performed to evaluate the potential of the combined measurement of visible near-infrared transmission spectroscopy and LR (1)H NMR measurements for the assessment of albumen freshness. Our results show that solely based on the transmission measurements, a good estimation of albumen freshness can be achieved. Based on LR (1)H NMR measurements, an estimation of albumen freshness can be achieved if larger egg collectives are used. However, when individual eggs are considered, only a moderate estimation is feasible. Finally, it was observed that combining both spectroscopic techniques did not improve the assessment of albumen freshness when compared solely to transmission measurements.
Unsupervised reference-free inference reveals unrecognized regulated transcriptomic complexity in human single cells (2022)

Abstract Myriad mechanisms diversify the sequence content of eukaryotic transcripts at both the DNA and RNA levels, leading to profound functional consequences. Examples of this diversity include RNA splicing and V(D)J recombination. Currently, these mechanisms are detected using fragmented bioinformatic tools that require predefining a form of transcript diversification and rely on alignment to an incomplete reference genome, filtering out unaligned sequences, potentially crucial for novel discoveries. Here, we present SPLASH+, significantly advancing biological discovery possible with SPLASH, our recently introduced efficient, reference-free statistical approach. Integrating a micro-assembly and biological interpretation framework, SPLASH+ enables new discoveries including broad and novel examples of transcript diversification in single cells de novo , without the need for cell type metadata, which is impossible with current algorithms. Applied to 10,326 primary human single cells across 19 tissues profiled with SmartSeq2, SPLASH+ discovers a set of splicing and histone regulators with highly conserved intronic regions that are themselves subject to complex splicing regulation. Additionally, it reveals unreported transcript diversity in the heat shock protein HSP90AA1 , as well as diversification in centromeric RNA expression, V(D)J recombination, RNA editing, and repeat expansion, all missed by existing methods. SPLASH+ is highly efficient, enabling the discovery of an unprecedented breadth of RNA regulation and diversification in single cells through a new automated paradigm of unbiased transcriptomic analysis.
Extraction of respiratory activity from PPG and BP signals using Principal Component Analysis (2011)

In high risk situations such as cardiac arrhythmias, ambulatory monitoring, stress tests, sleep disorder investigations and post-operative hypoxemia situations, monitoring of respiratory activity would be mandatory. Electrocardiogram (ECG), blood pressure (BP) and photoplethysmographic (PPG) signals can be used for extraction of respiratory activity, and will eventually eliminate the use of additional respiratory sensor. Using a simple and standard non-parametric mathematical technique, Principal Component Analysis (PCA), the respiratory related information is extracted from complex data sets such as PPG and BP signals. The respiratory induced variations (RIV) of PPG and BP signals are described by coefficients of computed principal components. Singular value ratio (SVR) trend is used to find the periodicity, which is one of the crucial parameters in forming the data sets for PCA. Test results on MIMIC data base clearly indicated a strong correlation between the extracted and actual respiratory signals. Statistical measures in both time and frequency domains such as Relative Correlation Coefficient (RCC) and Magnitude Squared Coherence (MSC) respectively and Accuracy Rate (AR) are calculated to demonstrate the fact, that respiratory signal is present in the form of first principal components.
Murine Thymomas Induced by Fractionated-X-Irradiation Have Specific T-Cell Receptor Rearrangements and Characteristics Associated with Day-15 to -16 Fetal Thymocytes (1987)

We report here that specific T-cell receptor rearrangements were observed in fractionated-X-irradiation-induced murine leukemias. Consistent gamma-chain rearrangements, limited beta-chain rearrangements, and no detectable alpha-chain rearrangements were observed. Gene expression studies revealed that, in comparison with normal thymus tissue, expression of alpha T-cell receptor genes was lower in the thymomas, beta expression was much higher but approximately equal to that of normal thymocytes, and gamma expression was significantly increased. After coupling these data with those from analyses using reagents against other surface markers, such as Lyt-2, L3T4, H-2, IL-2R and MEL-14, we concluded that the target T cells for fractionated-X-irradiation-induced transformation resemble fetal thymocytes from days 15 and 16 of gestation.
Interfering pathways in benzene: An analytical treatment (2009)

The mechanism for off-resonant electron transport through small organic molecules in metallic junctions is predominantly coherent tunneling. Thus, new device functionalities based on quantum interference could be developed in the field of molecular electronics. We invoke a partitioning technique to give an analytical treatment of quantum interference in a benzene ring. We interpret the antiresonances in the transmission as either multipath zeroes resulting from interfering spatial pathways or resonance zeroes analogous to zeroes induced by sidechains.
Photophysics and photoelectrochemical properties of nanohybrids consisting of fullerene-encapsulated single-walled carbon nanotubes and poly(3-hexylthiophene) (2010)

Novel nanohybrids of single-walled carbon nanotubes (SWNTs) encapsulating C60 or C70 with poly(3-hexylthiophene) (P3HT) have been prepared and their photophysics and photoelectrochemical properties are studied in detail for the first time. Strong π–π interaction between the SWNT sidewalls and P3HT afforded successful dissolution of the so-called fullerene peapods into an organic solvent, as in the case of empty SWNTs (p-SWNTs). Fluorescence emission of P3HT in the SWNT–P3HT hybrids was completely quenched by the SWNTs regardless of the fullerenes insertion. Transient absorption and fluorescence up-conversion techniques revealed the excited state dynamics of the nanohybrids, where exciplex formation from the short-lived P3HT singlet excited state (∼0.2 ps) with the fullerene peapods and subsequent relaxation to the ground state within ∼1 ps occurred dominantly. Significant difference in the photodynamics upon encapsulation of C60 or C70 was not detected, implying little participation of the fullerenes in the excited state event and thus the inability of the encapsulated fullerenes to generate the charge-separated state between the fullerene peapods and P3HT. Photoelectrochemical devices based on the peapod–P3HT nanohybrids showed almost the same incident photon-to-current efficiencies as those for the p-SWNT–P3HT-based device, which is in good agreement with the results of the time-resolved spectroscopies. Thus, the results obtained here will give a deep insight into the photophysics and photoelectrochemical properties of fullerene peapod–conjugated polymer as well as SWNT–conjugated polymer hybrids and therefore provide valuable information on the design of peapod-based optoelectronic devices.
Analysis of Deep Complex-Valued Convolutional Neural Networks for MRI Reconstruction (2020)

Many real-world signal sources are complex-valued, having real and imaginary components. However, the vast majority of existing deep learning platforms and network architectures do not support the use of complex-valued data. MRI data is inherently complex-valued, so existing approaches discard the richer algebraic structure of the complex data. In this work, we investigate end-to-end complex-valued convolutional neural networks - specifically, for image reconstruction in lieu of two-channel real-valued networks. We apply this to magnetic resonance imaging reconstruction for the purpose of accelerating scan times and determine the performance of various promising complex-valued activation functions. We find that complex-valued CNNs with complex-valued convolutions provide superior reconstructions compared to real-valued convolutions with the same number of trainable parameters, over a variety of network architectures and datasets.
IL-27 Abrogates Receptor Activator of NF-κB Ligand-Mediated Osteoclastogenesis of Human Granulocyte-Macrophage Colony-Forming Unit Cells through STAT1-Dependent Inhibition of c-Fos (2009)

IL-27 was first discovered as a factor supporting initial Th1 immune responses. Subsequent studies revealed that this cytokine has pleiotropic effects, including inhibition of certain immune cells, a regulatory role in hemopoietic stem cell differentiation, and antitumor activities. However, the role of human IL (hIL)-27 in human osteoclast precursors and inflammatory bone disease is unclear. Here, we examined the direct effect of hIL-27 on human osteoclastogenesis. Human bone marrow cells cultured in MethoCult medium containing human (h) GM-CSF, human stem cell factor, and hIL-3 expressed Mac-1, c-kit, and c-Fms. These cells, called hCFU-GMs, also expressed the IL-27 receptor, an IL-27Ralpha (WSX-1)/gp130 heterodimer. Cultivation in hM-CSF and human receptor activator of NF-kappaB ligand induced the differentiation of tartrate-resistant acid phosphatase-positive multinucleated cells (osteoclasts) from hCFU-GMs, and hIL-27 inhibited this osteoclastogenesis in a dose-dependent manner. hIL-27 also repressed bone resorption by osteoclasts on a dentine slice. hIL-27 caused a remarkable increase in STAT1 phosphorylation and enhanced the STAT1 protein level. It also inhibited the expression of receptor activator of NF-kappaB ligand-induced c-Fos and cytoplasmic, calcineurin-dependent 1 NFAT (NFATc1), which are indispensable transcription factors for osteoclastogenesis. Fludarabine, a STAT1 inhibitor, and STAT1 small interfering RNA partially rescued the inhibition of osteoclastogenesis by IL-27. A WSX-1 deficiency caused severe inflammatory bone destruction primed by Escherichia coli cell wall lysate in vivo. Therefore, hIL-27 may act as an anti-inflammatory cytokine in human bone destruction, by inhibiting osteoclastogenesis from hCFU-GMs via STAT1-dependent down-regulation of the transcription factor c-Fos. Our results suggest that hIL-27 may prove useful as a therapeutic target for inflammatory bone destruction.
Low dose X –ray effects on catalase activity in animal tissue (2012)

This study was intended to investigate the effect of low-dose X ray-irradiation upon the activity of catalase (CAT) in freshly excised chicken tissues (liver, kidney, brain, muscle). The tissue samples were irradiated with 0.5Gy and 2Gy respectively, in a 6 MV photon beam produced by a clinical linear accelerator (VARIAN CLINAC 2100SC). The dose rate was of 260.88cGy/min. at 100 cm source to sample distance. The catalase level was assayed spectrophotometrically, based on reaction kinetics, using a catalase UV assay kit (SIGMA). Catalase increased activity in various tissue samples exposed to the studied X ray doses (for example with 24 % in the liver cells, p<0.05) suggested the stimulation of the antioxidant enzyme biosynthesis within several hours after exposure at doses of 0.5 Gy and 2 Gy; the putative enzyme inactivation could also occur (due to the injuries on the hydrogen bonds that ensure the specificity of CAT active site) but the resulted balance of the two concurrent processes indicates the cell ability of decomposing the hydrogen peroxide-with benefits for the cell physiology restoration for the chosen low dose radiation.
On Control of Heterogeneous Multiagent Systems With Unknown Leader Dynamics (2017)

The contribution of this paper is a distributed control approach for a class of heterogeneous multiagent systems with unknown leader dynamics. Considering fixed and directed communication graph topologies, we establish a global sufficient condition for uniform ultimate boundedness of the output tracking error between the output of each heterogeneous agent and the output of the leader. If, in addition, the output of the leader is constant, we show that uniform ultimate boundedness reduces to asymptotic synchronization. Several illustrative numerical examples are provided to demonstrate the efficacy of the proposed control architecture.
Payoffs of participatory action research: racial and ethnic minorities with disabilities reflect on their research experiences (2010)

The disability community has experienced a long history of segregation and exclusion. With the passage of the Americans with Disabilities Act of 1990, discriminatory attitudes and behaviors would no longer be tolerated under law. In recent decades, disability researchers have also experienced a shift in how research projects are designed and conducted, with participatory action research (PAR) playing a prominent role. This paper provides an overview of these shifts and presents a qualitative study that explored the extent to which racial and ethnic minorities with disabilities were empowered by a PAR project that aimed to increase the physical accessibility of their communities. Content analysis of individual interviews revealed the following main themes: (1) increased knowledge of disability rights; (2) increased sense of independence; and (3) increased desire to advocate. Implications of this study include the important role that PAR may play in empowering racial and ethnic minorities with disabilities.
ChemInform Abstract: Selected Diastereoselective Reactions. Diastereoselective Intra‐ and Intermolecular 1,3‐Dipolar Cycloadditions in Natural Product Synthesis (2013)

Abstract Review: 131 refs.
The nature and consequence of weed spread in cropping systems (1997)

Weeds spread through movement of seeds and vegetative reproductive propagules. Pollen movement can spread weedy traits, such as herbicide resistance, between related weed and crop species. Weed seeds can spread short or long distances by natural plant dehiscence mechanisms, wind, water, animals, and man&amp;s activities. This symposium paper is a practical review of short-distance spread of weed seeds in and between nearby arable fields and noncrop lands, examining some of the causes of spread and subsequent effects on crop production. Pollen movement, as it affects the spread of herbicide resistance, also is considered a component of short-distance weed spread. Specific weed management options can be used to reduce man-caused weed seed spread within and between nearby fields, thus reducing potential crop yield losses. Long-term management will be more difficult for weed seed spread by natural dispersal mechanisms.