gebhart/patrepeval huggingface dataset:
A two-terminal IC temperature transducer (1976)

A bipolar monolithic IC temperature transducer with an operating temperature range of -125/spl deg/C to +200/spl deg/C has been designed, fabricated, and tested. The two-terminal device, which is fabricated using laser trimmed thin-film-on-silicon technology, is a calibrated temperature dependent current source with an average output impedence of 10 M/spl Omega/ over the 3.5-V to 30-V range of input voltage. Overall absolute accuracies of /spl plusmn/0.5/spl deg/C from -75/spl deg/C to +150/spl deg/C have been achieved on a scale of 1 /spl mu/A/K under optimum operating conditions.
Isolation of oil of clove and separation of eugenol and acetyl eugenol. An instructive experiment for beginning chemistry undergraduates (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsolation of oil of clove and separation of eugenol and acetyl eugenol. An instructive experiment for beginning chemistry undergraduatesM. S. Ntamila and A. Hassanali Cite this: J. Chem. Educ. 1976, 53, 4, 263Publication Date (Print):April 1, 1976Publication History Received3 August 2009Published online1 April 1976Published inissue 1 April 1976https://doi.org/10.1021/ed053p263RIGHTS & PERMISSIONSArticle Views6479Altmetric-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 InReddit PDF (655 KB) Get e-Alerts Get e-Alerts
XV.—On camphoric peroxide and camphorate of barium (1884)

C. T. Kingzett, J. Chem. Soc., Trans., 1884, 45, 93 DOI: 10.1039/CT8844500093
Mapping a disease locus by allelic association (1998)

Allelic association provides a means to map disease genes that, in a dense map of polymorphic markers, has considerably higher resolution than linkage methods. We describe here a composite likelihood estimate of location for a disease gene against a high-resolution marker map by using allele frequencies at linked loci. Data may be family-based, as in the transmission disequilibrium test, or from a case-control study. chi2 tests, logarithm of odds, standard errors, and information weights are provided. The method is illustrated by analysis of published cystic fibrosis haplotypes, in which DeltaF508 is more accurately localized than by other association studies. This differs from current approaches by adopting a more general Malecot model for isolation by distance, where distance here is between marker and disease locus, allowance for errors in the map and model, and freedom from assumptions about demography, systematic pressures, and the ratio of physical to genetic distance. When these assumptions are introduced the number of generations since the original mutation may be estimated, but this is not required to determine location and its standard error, so that evidence from allelic association may be efficiently combined with linkage evidence to identify a region for positional cloning of a disease gene.
Hydrolysis derivatives of (pyridyl-2)acetonitrile. (1979)

The alkaline hydrolysis (KOH/EtOH) of alkyl derivatives of (pyridyl-2)acetonitriles gave the corresponding amides. Lactones: 3-(pyridyl-2')3-alkyl-5-methyl-tetrahydrofuran-2-ones were synthesized as result of the hydrolysis of (pyridyl-2) alkylallylacetamides in presence of 85% H3P04. Soporific and anticonvulsive activity exhibited (pyridyl-2)diallylacetic amide 2 and (pyridyl-2)di-n-propylacetamine 3.
Towards analytic modeling for CSMA/CA based MAC protocol in wireless multi-hop networks - A simulation study (2006)

This paper reports on research into the relevance and prevalence of different events and conditions occurring at the Medium Access Control (MAC) layer in a multi-hop wireless network scenario. The purpose of this research is to determine which events and conditions are essential to an analytic model, and which can be ignored for the sake of simplicity, because simplicity and accuracy are generally competing factors in the design of a model but complimentary factors in the usefulness of a model. The research focuses on one important class of MAC protocols, Carrier Sense Multiple Access schemes with Collision Avoidance (CSMA/CA) as implemented in IEEE 802.11 type networks. The behavior of these protocols in the multi-hop scenario is significantly different from their behavior in the more commonly studied single-hop scenario. The research identifies what events are possible in the multi-hop scenario and uses a detailed simulator to evaluate their frequency and effect in different topologies and with different protocol parameters. Unfairness, different types of collisions, throughput, and other factors are considered. The observations are used to formulate directions for future analytic modeling approaches.
Recent evidence for common signalling mechanisms among immunoreceptors that recognize foreign antigens (1992)

Mucosal type mast cells, in contrast to the serosal type ones, do not respond to cationic agents, or to the complement-derived peptides C3a and C5a [1]. Earlier we have found that while C3a does not activate the rat mucosal type mast cells (line RBL-2H3), it strongly inhibits the IgE-mediated triggering of these cells, by interfering with the FcεRI-initiated signaling pathway [2]. In the present study we further investigated the mechanism of this process. It is shown, that C3a interacts with the β-chain of the FcεRI complex. Binding of the complement peptide to the cells apparently causes a decrease in the proximity of the IgE-binding FcεRI. Investigating certain sequences of C3a we found that the inhibition is caused by the C-terminal sequences of the complement-peptide, ranging from positions 56 to 77 and also by a shorter sequence, ranging from positions 56 to 64. The inhibitory effect of these peptides was observed both in the case of RBL-2H3 cells and mouse bone marrow derived mast cells.
ON-LINE 3D BODY MODELLING FOR AUGMENTED REALITY (2012)

Building 3D body models is an important task for virtual and augmented reality applications in telerehabilitation, education, 3DTV, entertainment and tele-presence. We propose a real-time full 3D reconstruction system that combines visual features and shape-based alignment using low cost depth sensor and video cameras targeting three-dimensional conferencing applications. With this approach we overcome the classic video based reconstruction problem in low-texture or repeated pattern regions. Alignment between successive frames is computed by jointly optimizing over both appearances and shape matching. Appearance-based alignment is done over 2D SURF features annotated with 3D position. Shape-based alignment is performed using the motion transformation estimation between consecutive annotated 3D point clouds through a linear method. A solution to avoid wrong annotated 3D matched points is proposed. 3D mesh model representation is used to lower the processed data and create a 3D representation that is independent of view-point.
Pseudo-associative store with hardware hashing (1983)

In the data-flow model of computation instruction, execution is determined by the availability of data rather than by an explicit or implicit sequential flow of control. One of the major problems in the architectural design of a data-flow computer is the detection of the availability of data. This problem is compounded if the data carry context information as well as pointers to the instructions that will use them; an instruction is then executable when all data directed to it within the same context are present. The solution adopted in the Manchester design is to limit the maximum number of operands of an instruction to two, and to use associative storage techniques to detect the presence of data. The use of true content addressable memory is precluded by its small density and high cost, and therefore a pseudo-associative store using hardware hashing techniques and implemented with conventional random-access memory is employed. The concept of sequence in the data-flow model of computation is unimportant; as a result search operations do not have to be resolved in the same sequence that the store is interrogated. This suggests a design which uses a main parallel hash table and a separate overflow mechanism operating in parallel. In this manner, an overflow search need not halt the progress of further main hash table searches. A pseudo-associative store results whose average access time is very close to the cycle time of the original randon-access memory.
Improving practical instruction in veterinary gross anatomy with multimedia based preparation (2000)

This paper describes and discusses work towards the improvement of the teaching and learning of the regional anatomy of the dog in veterinary science classes. The study of this topic in many veterinary schools entails repeated use of preserved dog cadavers. While the use of preserved specimens is a conventional and widely adopted approach in the study of anatomy in many veterinary schools, it is a practice that has several inherent problems. These problems are related to the repeated use and storage of preserved tissue, and the artificial appearance and texture of such specimens. The work reported here sought to address these concerns with an approach to the teaching and learning of this topic with multimedia-based preparation materials and the use of non-preserved specimens for dissection. An evaluation of this effort was conducted with the help of a print-based questionnaire. Students reported that the use of fresh tissues encouraged them to learn anatomical details, and that the multimedia-based preparation materials were helpful in getting a clearer idea of what was to follow in the dissection sessions and in the surgical processes
[Teratogenic action of alpha-asarone in the mouse]. (1992)

The embryotoxicity and teratogenicity of alpha-asarone were investigated in mice. The drug was dissolved in corn oil, and administered daily, by gavage, on days 6 to 15 of gestation, at 0 (controls), 5, 15, 30 and 60 mg/kg. Fetuses were removed on day 18 by caesarean section and examined using routine teratological methods. A significant maternal toxicity was observed in dams given 60 mg/kg, as indicated by a reduced weight gain. An embryolethality was observed in 15, 30 and 60 mg/kg treated groups. In addition, the highest dose induced fetal malformations, mainly represented by hydrocephaly, extra-ribs, clubfeet and cleft lips.
On the Pressure Dependence of Electrical Conductivity of Graphite (1973)

Electrical conductivity (σ) of pyrolytic graphite along the basal was measured at room temperature in the presence of hydrostatic pressures ( p ) up to 20 kb. the pressure dependence coefficient d ln σ/d p evaluated was only order of 10 -3 /kb, despite compressive stresses gave rise to a suppression of lattice vibrations, and also to an increase of the carrier concentration ( N ) with a rate of d ln \(N/\mathrm{d}p{\gtrsim}10^{-2}\)/kb. Such a discrepancy has successfully been removed by taking into account the pressure-induced change of the effective mass of carriers, which functions so as to cancel the increment of σ due to the increase of N . Calculations were performed on the basis of an effective mass approximation for the Slonczewski-Weiss band model. Thus, the participation of carrier-carrier scattering proposed by Yeoman and Young is excluded from responsible mechanisms. Discussions given of the c -axis conductivity on the same basis have also yielded a success in accounting for the pressure dependence.
Blunt injury of the small intestine and mesentery???the trauma surgeon??s Achille??s heel? (1996)

Eighteen patients with small intestine or mesenteric injury following blunt abdominal trauma were operated over a 34-month period. Early diagnosis and surgery, less than 6 hours after admission, was achieved in 10 patients (56%), seven of whom had haemorrhagic shock and had positive diagnostic peritoneal lavage or ultrasonography on admission. Three haemodynamically stable patients had a diagnostic abdominal computed tomography. Diagnosis was delayed in eight patients (44%) resulting in a gap between admission and surgery that varied from 20 hours to 46 days. The delay was related to lack of suspicion of injuries in haemodynamically stable patients despite a seat-belt sign, or false negative abdominal computed tomography. Diagnosis was delayed in six of seven patients (86%) where the only injury on admission was an isolated intestinal or mesenteric injury. In 11 patients there were associated abdominal or other system injuries. Late diagnosis was associated with an increased morbidity and longer hospital stay, relating to intestinal and mesenteric injury. In conclusion, a seat belt sign is highly suspicious of intestinal or mesenteric injury. Computed tomography was unreliable in diagnosing blunt intestinal and mesenteric injuries, and if equivocal, should be followed by diagnostic peritoneal lavage if nonoperative management is selected. Delayed diagnosis is often related to isolation of intestinal and mesenteric injury and results in increased morbidity and hospital stay. Every attempt should be made to reach a diagnosis within six hours of admission to the trauma unit. A management algorithm is proposed.
Serotonin uptake by bovine pulmonary artery endothelial cells in culture. I. Characterization (1986)

Serotonin (5-HT) uptake by bovine pulmonary artery endothelial cells in culture was measured at 5-HT concentrations of 1.5 X 10(-8) to 10(-3) M. The uptake increased linearly at concentrations of 10(-5) to 10(-3) M 5-HT, and the slope for uptake was 1.276 X 10(6) pmol 5-HT X 10(6) cells-1 X 30 min-1 X M concentration-1. The slope for uptake at 5-HT concentrations less than 10(-7) M was 7.10 X 10(6) pmol X 10(6) cells-1 X 30 min-1 X M concentration-1. With subtraction of the slope for linear uptake obtained at high concentrations of 5-HT from total uptake of 5-HT, a curve showing saturable uptake at concentrations greater than 10(-6) to 10(-5) M was obtained. Lineweaver-Burk analysis of the data yielded a saturated value of high-affinity transport of 6.25 pmol X 10(6) cells-1 X 30 min-1 and a Km of 10(-6) M. At 5-HT concentrations of 1.5 X 10(-8) to 5 X 10(-7) M, uptake was inhibited 75-80% by exposure to 4 degrees C or by absence of sodium in the medium; absence of sodium did not affect uptake at 5-HT concentrations greater than 10(-5) M, and 4 degrees C was less effective in inhibiting uptake at high 5-HT concentrations. Imipramine markedly inhibited uptake at low, but not at high, 5-HT concentrations. Ouabain only partially inhibited 5-HT uptake, but inhibition was more pronounced at low 5-HT concentrations.(ABSTRACT TRUNCATED AT 250 WORDS)
Karyotype reshufflings of Festuca pratensis × Lolium perenne hybrids (2017)

Many different processes have an impact on the shape of plant karyotype. Recently, cytogenetic examination of Lolium species has revealed the occurrence of spontaneous fragile sites (FSs) associated with 35S rDNA regions. The FSs are defined as the chromosomal regions that are sensitive to forming gaps or breaks on chromosomes. The shape of karyotype can also be determined by interstitial telomeric sequences (ITSs), what was recognized for the first time in this paper in chromosomes of Festuca pratensis × Lolium perenne hybrids. Both FSs and ITSs can contribute to genome instabilities and chromosome rearrangements. To evaluate whether these cytogenetic phenomena have an impact on karyotype reshuffling observed in Festuca × Lolium hybrids, we examined F<sub>1</sub> F. pratensis × L. perenne plants and generated F<sub>2</sub>-F<sub>9</sub> progeny by fluorescent in situ hybridization (FISH) using rDNA sequences, telomere and centromere probes, as well as by genomic in situ hybridization (GISH). Analyses using a combination of FISH and GISH revealed that intergenomic rearrangements did not correspond to FSs but overlapped with ITSs for several analyzed genotypes. It suggests that internal telomeric repeats can affect the shape of F. pratensis × L. perenne karyotypes. However, other factors that are involved in rearrangements and have a more crucial impact could exist, but they are still unknown.
Mutations in<i>half baked</i>/E-cadherin block cell behaviors that are necessary for teleost epiboly (2005)

Epiboly, the spreading of the blastoderm over the large yolk cell, is the first morphogenetic movement of the teleost embryo. Examining this movement as a paradigm of vertebrate morphogenesis, we have focused on the epiboly arrest mutant half baked (hab), which segregates as a recessive lethal, including alleles expressing zygotic-maternal dominant (ZMD) effects. Here we show that hab is a mutation in the zebrafish homolog of the adhesion protein E-cadherin. Whereas exclusively recessive alleles of hab produce truncated proteins, dominant alleles all contain transversions in highly conserved amino acids of the extracellular domains, suggesting these alleles produce dominant-negative effects. Antisense oligonucleotides that create specific splicing defects in the hab mRNA phenocopy the recessive phenotypes and, surprisingly, some of the ZMD phenotypes as well. In situ analyses show that during late epiboly hab is expressed in a radial gradient in the non axial epiblast, from high concentrations in the exterior layer of the epiblast to low concentrations in the interior layer of the epiblast. During epiboly, using an asymmetric variant of radial intercalation, epiblast cells from the interior layer sequentially move into the exterior layer and become restricted to that layer; there they participate in subtle cell shape changes that further expand the blastoderm. In hab mutants, when cells intercalate into the exterior layer, they tend to neither change cell shape nor become restricted, and many of these cells 'de-intercalate' and move back into the interior layer. Cell transplantation showed all these defects to be cell-autonomous. Hence, as for the expansion of the mammalian trophoblast at a similar developmental stage, hab/E-cadherin is necessary for the cell rearrangements that spread the teleost blastoderm over the yolk.
Numerical analysis of fire effects on beam structures (1988)

A known finite element model is significantly enriched in order to take into consideration the variations of material parameters that are provoked by elevated temperatures due to fire environment. On the basis of this ‘heterogeneity acquired model’ a numerical iterative procedure is implemented that permits to describe the performances of beam structures exposed to fire. Efficiency of the proposed model and relevant procedure are shown by some numerical results which are partly and successfully compared with experimental ones obtained by other researchers.
Experimental test of the role of ion-ion instability in determining ion loss from a two-species plasma (2010)

Summary form only given. Recent experiments have shown that ions in plasmas containing two ion species reach a common velocity at the sheath-presheath boundary. A new theory suggests that collisional friction between the two ion species enhanced by two stream instability dominates the drift velocity of each ion species near the sheath edge but also suggest that there are differences in ion the velocity at the sheath-presheath boundary given by [2/α(v <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th1</sub> + v <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th2</sub> )] <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">½</sup> . This suggests that significant differences in velocity will occur as the relative concentration varies and that when the concentrations are very different, each species velocity approaches the individual Bohm velocities. We report the first experimental test of this model. We measure ion velocity distribution functions (ivdfs) near sheath edge in an Argon/Xenon plasma as a function of the concentration ratios. The relative concentration of the two ion species is determined by the Ion Acoustic Wave phrase velocity measurements, the ivdfs are determined by Laser Induced Florescence, the electron temperature is measured by Langmuir probe and the plasma potential is measured by emissive probe.
Kodak DC-50:PC即时摄影简单易行 (1996)

Kodak Digital Science DC-50 Zoom Camera集双方优点于一身:它使用与Kodak DC-40相同的电荷耦合器件(CCD)成象、曝光补偿控制和一流固件(firmware);还使用Chinon ES-3000和Dycam 10C(曾获Editors' Choice奖)的自动测光计、自动对焦、3倍变焦、宏功能及可替换存储卡。因此售价979美元的DC-50在操作使用和图象品质上都更加出色。 在外部,DC-50看上去与Chinon
[Exacerbation of acute leukemia bearing isolated i(17q) along with proliferation of blasts with high BMI-1 expression]. (2007)

We report a case of acute leukemia with an isolated isochromosome 17q karyotypic abnormality, which may be transformed from myeloproliferative disease (MPD)/myelodysplastic syndrome (MDS). A 69-year-old male patient with 27% of blasts in the peripheral blood underwent hematological examinations including cytochemical staining of cells such as myeloperoxydase (MPO), surface marker study on blasts, chromosomal test and bcr-abl mRNA analysis. The cytological and molecular findings (MPO-positive, myeloid marker CD13 expression (67.3%) and megakaryocytic marker CD41 expression (24.8%)) indicated that the blasts were consistent with myeloid leukemic cells partially committed to megakaryocytes. He was diagnosed as having leukemic transformation from MPD/MDS based on history of leukocytosis and thrombocytosis, isolated i(17q), bcr-abl negative, hepatosplenomegaly, increased eosinophil/basophil count and cytologic dysplasia. Positivity of BMI-1 in CD34+ blasts was 25.8% at the diagnosis and anti-leukemic drugs including anthracyclines were effective for his disease control during 6 months. However, the CD34+ cells turned out to highly express BMI-1 (83.1%), and leukemic cells started to increase progressively following which the leukemic cells failed to respond efficiently to any anti-leukemic drugs. Thus, expression of BMI-1 was well correlated with the disease progression, growth ability of blasts and resistance to anti-cancer drugs, indicating that BMI-1 positivity in CD34+blasts is an excellent molecular marker for disease progression and prognosis in such patients.
Are you talking to me? A possible role for γ‐butyrolactones in interspecies signalling (2014)

The secreted γ-butyrolactone signalling molecule SVB1 regulates the biosynthesis of jadomycin in Streptomyces venezuelae. Interestingly, this molecule is identical to SCB3, a secreted regulator of secondary metabolism in Streptomyces coelicolor. This is a departure for this class of signalling molecules as there are no previous reports of identical signalling molecules produced in different species. One implication of this work is that different species of bacteria could use shared extracellular signals to co-ordinate secondary metabolism when and if it is advantageous to do so.