gebhart/patrepeval huggingface dataset:
Mössbauer effect investigations of the electronic and magnetic properties of rare earth metal and intermetallic hydrides (1979)

Mössbauer spectroscopy has been used in a number of investigations of elemental rare earth (RE) metal and RE–transition metal intermetallic hydrides. Analysis of hyperfine parameters has established the crystalline electric field (CEF) ground state for Dy3+ in DyH2 and for Er3+ in ErH2 and YH2. In all cases the results are compatible with the presence of negatively charged hydrogen atoms. Long range magnetic ordering is observed in the RE-H2 compounds. In DyH2, short-range magnetic ordering is seen at temperatures up to twice the long-range transition temperature. This arises from the changes in CEF symmetry due to the presence of a few H atoms which are not in regular tetrahedral sites. These effects are much more pronounced in slightly non-stoichiometric compounds and can result in dramatic changes in the magnetic ordering temperature. As an example of an intermetallic hydride, we have studied the cubic Laves phase RE-iron compounds. These form several stable hydride phases RE-Fe2Hx, with the maximum x being in excess of 4. The magnetic transition temperatures decrease to roughly half their original values for x=3.5, and the RE-Fe exchange interaction is weakened. For x=4, a sharp reduction in both the Fe magnetic moment and the magnetic ordering temperature occurs.
The Psychophysical Approach in Manual Lifting---A Verification Study (1983)

An experiment was conducted to verify the psychophysical methodology used for determining lifting capabilities of workers. After estimating during a 25-min period what they could lift for 8 h, males lifted for 8 h. The amount lifted was only 65% of the estimated value. Females, on the other hand, lifted 84% of the estimated weight. When the lifting duration increased from 8 h to 12 h, males lifted only 70% and females lifted 77% of the estimated weights. The metabolic energy expenditure rate of the subjects also decreased significantly with time as the loads were reduced. Heart rates remained relatively constant at about 100 beats/min, even though energy expenditure rates decreased over the 12-h period. This could indicate that the subjects were sensitive to their general state of physiological strain in such work and adjusted the loads and corresponding energy expenditure rates to maintain a relatively constant circulatory burden.
The LAZ3/BCL6 oncogene encodes a sequence-specific transcriptional inhibitor: a novel function for the BTB/POZ domain as an autonomous repressing domain. (1995)

Rearrangements and mutations of the LAZ3/BCL6 gene are the most frequent events associated with diffuse large-cell lymphoma, a particular class of non-Hodgkin's lymphomas. This gene encodes a putative regulatory protein with six COOH-terminal Krüppel-like zinc fingers and a NH2-terminal hydrophobic region, the so-called BTB/POZ domain, which mediates homo- as well as heterotypic interactions in other related proteins. Recently, a consensus binding sequence has been defined using the isolated LAZ3/BCL6 zinc finger region produced in bacteria. To understand the normal and oncogenic functions of LAZ3/BCL6, we examined its properties as a transcription factor. We thus demonstrated that its full-length product binds to the same consensus sequence, although the BTB/POZ domain decreases this activity, at least in vitro. In transient transfection experiments, the LAZ3/BCL6 protein exerts a repressive effect, both as a wild-type protein on its own target sequence and as a GAL-4 fusion protein. Furthermore, our results indicate that the BTB/POZ domain plays a prominent role in the mediation of this activity. Indeed, on the LAZ3/BCL6 cognate sequence, deletion of the BTB/POZ domain diminishes the repressive function. Conversely, as a GAL-4 chimera, the isolated LAZ3/BCL6 BTB/POZ domain appears nearly as efficient as the entire protein at inducing transcriptional repression. Taken together, these findings demonstrate that the LAZ3/BCL6 is a sequence-specific transcriptional repressor and point to a novel function for the BTB/POZ region, at least in LAZ3/BCL6, as an autonomous transcriptional inhibitory domain.
Allogeneic manipulation of the GAT idiotypic cascade. Immunization of C57BL/6 mice by BALB/c anti-idiotypes stimulates similar strain-specific V genes as the original antigen. (1988)

Antibodies specific for the immunizing Ag (Ab1) (Id+ Ag+) and Ab3 (Id+ Ag+ or Id+ Ag-) of the (Glu60 Tyr10 Ala30) (GAT) idiotypic cascade express similar pGAT public determinants in BALB/c and C57BL/6 strains. These determinants have been shown to be dependent upon both VH and Vkappa encoded segments. The VH of the BALB/c Ab1 (germ-line gene H10) and that of the C57BL/6 Ab1 (germ-line gene V186-2) are only 75% homologous, whereas VK are much more conserved. C57BL/6 mice were immunized with BALB/c Ab2 (anti-idiotypic) antibodies and monoclonal Ab3 were derived after fusion of immunized spleen cells with the nonsecreting hybridoma cell line Sp/2.0-Ag. From 13 cell lines, five clones (four Id+ Ag- and one Id+ Ag+) were isolated and the mRNA V regions sequenced. Immunization with BALB/c anti-idiotypes elicits expression of the same or closely related C57BL/6 VH and Vkappa genes as when C57BL/6 mice were immunized with GAT, although functional VH BALB/c equivalents have been isolated in the B6 strain. Our results suggest that manipulation of the repertoire via antigenic or idiotypic stimulation both lead to the expression of different genes in different strains. They further confirm that the immune system is largely degenerate, for both idiotype expression and Ag recognition.
Structural study of quercetin by vibrational and electronic spectroscopies combined with semiempirical calculations (1997)

As a follow-up to structural studies of monohydroxylated flavones, the structural and spectroscopic properties of a tetrahydroxylated flavone, the quercetin molecule, have been investigated. The molecular conformation of quercetin has been obtained from semiempirical treatment with the AM1 Hamiltonian. Some structural modifications have been observed between the molecule in the solid state and in an isolated state, notably in the rotation of the phenyl ring with respect to chromone part of the compound. The theoretical model has been validated by both vibrational and electronic spectroscopies. The calculated vibrational and UV-vis spectra are in good accordance with the experiments. The Raman spectra have been assigned, and the main electronic transitions involved in the absorption spectrum have been characterized. © 1997 John Wiley & Sons, Inc. Biospect 3: 183–193, 1997
Multiphoton Process Observed in the Interaction of Microwave Fields with the Tunneling between Superconductor Films (1963)

Calculations are made which explain qualitatively the multiphoton-assisted electron tunneling recently observed in superconducting diodes by Dayem and Martin. It seems to us that the microwave field is much too weak to cause any nonlinearities in the conduction current in the superconductors. Thus, the interaction does not cause transitions between electron states with different wave numbers. Rather, the energies of the electrons are varied adiabatically by the microwave fields. This gives rise to effective changes in the density of states versus energy which are dramatically illustrated in the tunneling current.Calculations are performed for three different possible forms of the field interaction. Qualitatively, the theory fits the experimental observations very well, but, as in the somewhat similar case of phonon-assisted tunneling, the largest postulated interaction seems about an order of magnitude too small to explain the observations on a quantitative basis.
Influence of Selenium, Vitamin E, and Ethoxyquin on Lipid Peroxidation in Muscle Tissues from Fowl during Low Temperature Storage (1980)

The influences of various factors which affect the selenium-vitamin E status of laying hens on lipid peroxidation in muscle tissues during low temperature storage were studied. Laying hens from 32 to 56 weeks of age were fed low selenium and low vitamin E practical diets supplemented with different levels of Na2SeO3, d1-alpha-tocopherol acetate, ethoxyquin, and/or peroxidized corn oil. Vitamin E status as indicated by plasma vitamin E activity was improved by supplements of vitamin E, selenium, or ethoxyquin. Selenium status as indicated by plasma selenium-dependent glutathione peroxidase activity was improved by selenium supplementation. Incorporation of peroxidized corn oil into diets did not depress plasma vitamin E but increased plasma glutathione peroxidase when those diets contained supplemental selenium. Lipid peroxidation as indicated by the 2-thiobarbituric acid (TBA) method in muscle samples held at -20 C for up to 270 days was reduced by dietary selenium in M. pectoralis when corn oil was fed. Supplemental vitamin E or ethoxyquin reduced TBA values developed in M. gastrocnemius. Results indicate that dietary selenium and other factors affecting selenium status may be useful in retarding the development of oxidative rancidity in frozen poultry products.
Simple Circuit for Obtaining Rastered Oscilloscope Displays on Tektronix Oscilloscopes (1967)

First Page
On securing untrusted clouds with cryptography (2010)

In a recent interview, Whitfield Diffie argued that "the whole point of cloud computing is economy" and while it is possible in principle for "computation to be done on encrypted data, [...] current techniques would more than undo the economy gained by the outsourcing and show little sign of becoming practical". Here we explore whether this is truly the case and quantify just how expensive it is to secure computing in untrusted, potentially curious clouds.
Fluid Observation with an Optical Fiber Photorefractometer (1983)

An optical fiber photorefractometer is used for observing fluid mixtures. The concentration of alcohol or sugar into water is measured by noting the change in refractive index. The flow pattern of insoluble mixture is characterizable by a passage frequency, f , or an occupation ratio in time, α, of inclusions. These parameters are related to the mixture ratio. The flow velocity may be estimated from the cross-correlation between outputs of two photorefractometric sensors placed at distances along the path of flow.
Detailed study of the reversible addition–fragmentation chain transfer polymerization and co-polymerization of 2-methacryloyloxyethyl phosphorylcholine (2010)

In this paper, we report on a detailed study of the reversible addition–fragmentation chain transfer (RAFT) polymerization of 2-methacryloyloxyethyl phosphorylcholine (MPC). The RAFT polymerization conditions were carefully monitored and it was noted that well-defined homopolymers with ideal low polydispersity (Mw/Mn < 1.2) could be achieved in methanol using 4-cyanopentanoic acid dithiobenzoate (CTP) as a chain transfer agent and 4,4′-azobis(4-cyanovaleric acid) (ACVA) as an initiator. A series of well-defined block copolymers having a range of compositions and molecular weight were prepared using poly(MPC) as the macroCTA. Statistical MPC-based copolymers of biological relevance were also synthesized and characterized.
<b>Covalent binding of C3b to tetanus toxin: influence on uptake/internalization of antigen by antigen‐specific and non‐specific B cells</b> (1996)

Antigen opsonization by the C3b fragment of complement is a significant event in the modulation of cell-mediated immune response, but its mechanism is still largely unknown. The structural characteristics of C3b allow it to act as a bifunctional ligand between antigen and cells via their membrane C3b receptors. It was thus of interest to study the influence of the covalent link between C3b and antigen on the fixation and internalization of this antigen by antigen-presenting cells. Tetanus toxin (TT) was used as antigen, either free or covalently linked to C3b (TT-C3b). The antigen-presenting cells were TT-specific (4.2) or non-specific (BL15) Epstein-Barr virus (EBV)-transformed B cells. C3b was found to play an important role in antigen fixation and internalization by both antigen-specific and antigen non-specific cells. Covalent binding of C3b on TT (1) permitted fixation and internalization of this antigen by non-specific cells via their complement receptors; (2) enhanced antigen fixation and resulted in cross-linking between membrane immunoglobulins and complement receptors on antigen-specific cells. The consequences of covalent C3b binding to TT were analysed using antigen-specific and antigen-nonspecific cells. In both cases, a net increase in antigen fixation was observed. At the intracellular level, covalent C3b binding to TT resulted in a large TT incorporation in endosomes of nonspecific cells, similar to that observed in antigen-specific cells. Thus, C3b covalently linked to antigen enlarges the array of B-cell types capable of presenting antigen, including non-specific cells.
Preliminary design aerodynamics of missile inlets (1990)

A prediction code has been developed to estimate aerodynamic forces and moments on missile inlets. The program is simple to use and requires minimal computer run time, making it ideal for use in preliminary design. The code is applicable to axisymmetric and twod i m e n s i o n a l i n l e t l d i v e r t e r combinations positioned in any orientation about a circular missile body. The methodology is comprised of analytic models to predict the aerodynamic contributions due to planform, thickness , crossf low, wave drag, skin friction, and interference effects. The individual contributions are summed to yield o v e r a l l i n l e t a e r o d y n a m i c performance. The analytic methods used in the code have been in existence for many years and do not necessarily represent the state-ofthe-art in prediction techniques. However, integrated into a single production code, they represent a powerful tool for performing the trade studies and configuration s c r e e n i n g a s s o c i a t e d w i t h preliminary design. A brief synopsis of each technique is presented, and comparisons are made with experimental data to establish the code's applicability over a broad range of flight conditions.
Lethal and sublethal effects of <i>Brevibacillus laterosporus</i> on the housefly (<i>Musca domestica</i>) (2006)

Abstract Sporulated cultures of an isolate of the entomopathogenic bacterium Brevibacillus laterosporus (Laubach) from soil in Sardinia (Italy) were highly toxic by ingestion to both adults and juveniles of the housefly, Musca domestica L. (Diptera: Muscidae). Toxicity was associated with spores as the culture supernatant was not toxic and no parasporal inclusions were observed. The level of toxicity varied with the concentration of spores, the time of exposure to the treated diet, and the stage of insect development. Comparative LC 50 values were 0.72 × 10 8 and 1.75 × 10 8 spores per gram of diet for 1st and 2nd instar larvae, respectively, and 3.84 × 10 8 spores per gram for adults. A significant increase in larval development time and reductions in pupal weight and emergence rate were observed when larvae were fed on diets containing sublethal concentrations of spores. Adults surviving after feeding on a sublethal diet showed a significant reduction in fecundity and longevity. Similarly, adults from treated larvae exhibited a lower fecundity, although their longevity was not influenced. A relationship between pupal weight and adult fecundity was found. Pupal stage duration and egg eclosion were not significantly affected.
Crystal Structure of Bi(OCMe2CH2OMe)3 and Its Use in the MOCVD of Bi2O3 (2001)

The crystal structure of the volatile bismuth alkoxide tris(1-methoxy-2-methyl-2-propanolato)bismuth(III), Bi(OCMe2-CH2OMe)3, 1, has been determined by single crystal X-ray diffraction (XRD). The complex is mononuclear, containing a six-coordinate BiIII atom in a distorted octahedral environment. Using a solution of 1 in heptane, thin films of bismuth oxide have been deposited by liquid injection metal–organic (MO) CVD. Deposition was carried out over a wide range of substrate temperatures (250–550 °C) and, using Auger electron spectroscopy (AES), films were shown to be pure bismuth oxide (Bi2O3) with no detectable carbon.
An engineering model for prediction of rolling contact fatigue of railway wheels (2002)

ABSTRACT An engineering model for rolling contact fatigue (RCF) of railway wheels is developed. Three well‐known types of fatigue in wheels – surface‐initiated fatigue, subsurface‐initiated fatigue and fatigue initiated at deep material defects – are accounted for. Fatigue impact is quantified by three fatigue indices expressed in analytical form. The model can easily be integrated in a multibody dynamics code without significantly increasing computational demands. A powerful tool for optimizing train–track configurations with respect to fatigue performance should result. In this paper, theoretical foundations, benefits and limitations of the model are presented. An example of a postprocessing analysis of data from a dynamic simulation of train–track interaction is given.
Effect of Nano-Filler on Structural and Ionic Transport Properties of Plasticized Polymer Electrolyte (2012)

Polymer blend electrolytes, where PEO-PMMA polymer blend is used as polymer host matrix, doped with AgNO3 and plasticized with ethylene carbonate (EC) and Al2O3 as nano-filler were synthesized using the solution cast techniques. The polymer films were characterized by impedance spectroscopy, XRD, DSC, SEM, FT-IR and ionic transport mea-surements. The results indicate an enhancement in conductivity of PEO-PMMA-AgNO3-EC polymer electrolytes. The ionic conductivity of the polymer films is also found to increase with temperature. Electrical properties of polymer films in the framework of dielectric and modulus formalism are studied and discussed
The role of botulinum toxin in neurourology (2004)

Botulinum toxin is a presynaptic neuromuscular blocking agent that induces a selective and reversible muscle weakness of up to several months when injected intramuscularly in minute quantities. Different medical disciplines have applied the toxin to treat mainly muscular hypercontraction. For neurourologically impaired patients, the reported successful treatment of neurogenic detrusor overactivity and detrusor sphincter dyssynergia with botulinum-A toxin is a promising alternative option to conservative medication or surgery. This review of the literature presents current indications, techniques for and results of the use of botulinum toxin in neurourologically impaired patients and aims to give an insight into this new therapeutic option.
Prevention of Acute Graft Rejection by the Prostaglandin E<sub>1</sub>Analogue Misoprostol in Renal-Transplant Recipients Treated with Cyclosporine and Prednisone (1990)

Prostaglandins of the E series have been shown to have immunosuppressive properties. To study the effects of the prostaglandin E1 analogue misoprostol on renal function and graft rejection after transplantation, we conducted a randomized, double-blind, placebo-controlled trial in 77 renal-allograft recipients. The subjects received misoprostol (200 micrograms four times daily by mouth; n = 38) or placebo (n = 39) for the first 12 weeks after transplantation, in addition to standard immunosuppression with cyclosporine and prednisone. They were then observed for an additional four weeks after the drug or placebo was discontinued. Treatment with misoprostol was associated with a significant improvement in renal function as judged by the mean (+/- SEM) serum creatinine concentration (128 +/- 7 vs. 158 +/- 11 mumol per liter after 12 weeks; P = 0.03) and creatinine clearance (84 +/- 6 vs. 69 +/- 5 ml per minute per 1.73 m2 of body-surface area; P = 0.05). There was a significant reduction in the incidence of acute rejection in the group treated with misoprostol as compared with the placebo group (10 of 38 vs. 20 of 39; P = 0.02), and there was less need for rehospitalization after transplantation (4 +/- 1 days with misoprostol vs. 10 +/- 2 days for placebo; P = 0.03). Although blood levels of cyclosporine did not differ significantly between the groups, they tended to be higher in the misoprostol group, as did the incidence of acute nephrotoxicity due to cyclosporine (13 of 38 vs. 8 of 39). Infectious complications tended to be fewer in the misoprostol-treated group (14 of 38 vs. 21 of 39). We conclude that misoprostol improves renal function and safely reduces the incidence of acute rejection in renal-transplant recipients treated concurrently with cyclosporine and prednisone.
A STUDY OF ILLNESS IN A GROUP OF CLEVELAND FAMILIES (1953)

Journal Article A STUDY OF ILLNESS IN A GROUP OF CLEVELAND FAMILIES: II. INCIDENCE OF THE COMMON RESPIRATORY DISEASES Get access GEORGE F. BADGER, GEORGE F. BADGER Search for other works by this author on: Oxford Academic PubMed Google Scholar JOHN H. DINGLE, JOHN H. DINGLE Search for other works by this author on: Oxford Academic PubMed Google Scholar A. E. FELLER, A. E. FELLER Search for other works by this author on: Oxford Academic PubMed Google Scholar RICHARD G. HODGES, RICHARD G. HODGES Search for other works by this author on: Oxford Academic PubMed Google Scholar WILLIAM S. JORDAN, JR., WILLIAM S. JORDAN, JR. Search for other works by this author on: Oxford Academic PubMed Google Scholar CHARLES H. RAMMELKAMP, JR. CHARLES H. RAMMELKAMP, JR. Search for other works by this author on: Oxford Academic PubMed Google Scholar American Journal of Epidemiology, Volume 58, Issue 1, July 1953, Pages 31–40, https://doi.org/10.1093/oxfordjournals.aje.a119588 Published: 01 July 1953 Article history Received: 29 January 1953 Published: 01 July 1953
Tautomerism in 2-hydroxy-5,10,15,20-tetraphenylporphyrin: an equilibrium between enol, keto, and aromatic hydroxyl tautomers (1988)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTTautomerism in 2-hydroxy-5,10,15,20-tetraphenylporphyrin: an equilibrium between enol, keto, and aromatic hydroxyl tautomersMaxwell J. Crossley, Margaret M. Harding, and Sever SternhellCite this: J. Org. Chem. 1988, 53, 6, 1132–1137Publication Date (Print):March 1, 1988Publication History Published online1 May 2002Published inissue 1 March 1988https://pubs.acs.org/doi/10.1021/jo00241a002https://doi.org/10.1021/jo00241a002research-articleACS PublicationsRequest reuse permissionsArticle Views551Altmetric-Citations40LEARN 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