gebhart/patrepeval huggingface dataset:
Impact of the spreading sequences on the performance of forward link MC-CDMA systems (2005)

We investigate the impact of the spreading sequences on the performance of forward link MC-CDMA systems. We show that between the extreme cases of uncorrelated and highly correlated channels, the spreading sequences have a great influence on the mutual interference power. This is true for Walsh-Hadamard and Fourier orthogonal sequences where the aperiodic correlation function varies drastically with respect to the spreading sequences. Thus, in this context, selecting the subset of less mutually interfering sequences for a given system load can significantly improve the system performance. Based on this observation, we propose a recursive algorithm that at a given recursion selects the sequence which has less mutual interference powers with the already selected sequences. This algorithm is shown to provide significant gains of up to 3.5 dB in terms of minimum achieved SINR when compared to bad sequence selection. This algorithm requires knowledge of the equalized channel correlations for all active users, which may be difficult to provide in practice. To overcome this difficulty, we show that by making some assumptions on the channel correlation model, one can greatly reduce the algorithm knowledge requirements without significant loss in performance.
Acid-base balance and plasma composition in the aestivating lungfish (Protopterus) (1977)

Upon entering into aestivation, Protopterus aethiopicus develops a respiratory acidosis. A slow compensatory increase in plasma bicarbonate suffices only to partially restore arterial pH toward normal. The cessation of water intake from the start of aestivation results in hemoconcentration and marked oliguria. The concentrations of most plasma constituents continue to increase progressively, and the electrolyte ratios change. The increase in urea concentration is disproportionately high for the degree of dehydration and constitutes an increasing fraction of total plasma osmolality. Acid-base and electrolyte balance do not reach a new equilibrium within 1 yr in the cocoon.
Influence of the structure of the mesogenic core on the thermotropic properties of ω-unsaturated fluorinated liquid crystals (2003)

Three series of calamitic liquid crystals have been prepared, consisting of a mesogenic core attached to which is a perfluorinated chain via a thioester linkage, and a hydrocarbon chain containing a terminal double bond. The rigid core is either a monophenyl, biphenyl or phenyl benzoate group. The mesomorphic properties were characterized by polarizing optical microscopy and differential scanning calorimetry. The influence of the structure of the mesogenic core and of the hydrocarbon chain length on mesomorphic behaviour was studied. Increasing the length of the alkyl chain strongly reduces the mesomorphic behaviour while increasing the number of aromatic rings in the core increases the transition temperatures, with the widest LC range observed for derivatives with the phenyl benzoate core. The introduction of a single ring as the mesogenic core is considered of great interest in the development of low cost liquid crystal materials.
Tetrahydrochromenoimidazoles as Potassium-Competitive Acid Blockers (P-CABs): Structure−Activity Relationship of Their Antisecretory Properties and Their Affinity toward the hERG Channel (2010)

Potassium-competitive acid blockers (P-CABs) constitute a new therapeutic option for the treatment of acid-related diseases that are widespread and constitute a significant economical burden. Enantiomerically pure tetrahydrochromenoimidazoles were prepared using the readily available candidate 4 (BYK 405879) as starting material or the Noyori asymmetric reduction of ketones as key reaction. A comprehensive SAR regarding the influence of the 5-carboxamide and the 8-aryl residue on in vitro activity, acid-suppression in the Ghosh Schild rat, and affinity toward the hERG channel was established. In addition, efficacy and duration of the antisecretory action was examined for the most promising target compounds by 24 h pH-metry in the fistula dog and a significantly different SAR was observed as compared to the Ghosh Schild rat. Several tetrahydrochromenoimidazoles were identified that possessed a comparable profile as the candidate 4.
Lipids in Evolution (review) (1982)

BOOK REVIEWS Lipids in Evolution. By William R. Ness and W. David Ness. New York: Plenum Press, 1980. Pp. 244. $29.50. Past biochemical approaches to evolution have comprised studies on protein sequencing and nucleotide structure. Not as much has been contributed by the study of lipids; in fact, information on the relationships between any class of lipids and evolution is very modest and far from permitting any definitive conclusions on the subject. Such a view clearly emerges from this monograph, which has the value of presenting objectively the information in the literature, highlighting both established and controversial findings. At this time, it is apparent that the current lipid makeup of any given cell has to be considered the result of the interplay of many factors (cell function, lineage, environment, time), all of which influence evolution. The authors examine these factors in detail against a background which orients the reader on fundamental concepts such as the age of the universe, the age of the earth, and the dating of biological events. A particularly interesting portion of the book is chapter 4, in which the authors present an analysis of extraterrestrial lipids and terrestrial fossils, including information on recent findings on the moon and in meteorites. The authors are very cautious in relating the chemical data (many of which they themselves have obtained) to evolutionary parameters. By providing a wealth of details, they put the reader in the position of assessing the current state of the field and convey their perception of its importance. There is a natural fascination with this type of study which is related to the origin of life. Since much work remains to be done, the book may serve as a springboard for those willing to explore this unknown realm, but others may find this monograph of interest as well. Its reading (a total of 244 pages) is facilitated by the summaries accompanying all of the chapters and by the well-selected subject index. Anyone wishing to obtain more information about the literature on this subject will find it valuable to consult the abundant list of references which forms an appendix to the text. Angelo M. Scanu Departments ofMedicine and Biochemistry University ofChicago Permission to reprint a book review printed in this section may be obtained only from the author. 332 Book Reviews ...
Hopwood in Doubt: The Folly of Setting a Grand Theory Requiring Race Neutrality in All Programs of Higher Education (2000)

Theodore Cross, Hopwood in Doubt: The Folly of Setting a Grand Theory Requiring Race Neutrality in All Programs of Higher Education, The Journal of Blacks in Higher Education, No. 29 (Autumn, 2000), pp. 60-84
Routine monitoring of temperatures inside thermal cycler blocks for quality control (1994)

Journal Article Routine monitoring of temperatures inside thermal cycler blocks for quality control Get access D W Kopp, D W Kopp Search for other works by this author on: Oxford Academic Google Scholar C A Sansieri, C A Sansieri Search for other works by this author on: Oxford Academic Google Scholar T E Mifflin T E Mifflin Search for other works by this author on: Oxford Academic Google Scholar Clinical Chemistry, Volume 40, Issue 11, 1 November 1994, Pages 2117–2119, https://doi.org/10.1093/clinchem/40.11.2117 Published: 01 November 1994
Dual-band circularly polarized antenna fed by SICL coupler (2014)

A dual-band dual-circularly polarized patch antenna which is excited by two L-probes and fed by substrate integrated coaxial line (SICL) branch-line coupler is designed, fabricated, and measured. Simulation and measurement results show that, considering reflection coefficient, gain, and axial-ratio (AR) together, the bandwidths are 10% and 4%, and the antenna gains are 7 dBi and 8.2 dBi, respectively, at 1.6 GHz and 2.5 GHz bands.
The Interaction of Proteins with Synthetic Polyelectrolytes. I. Complexing of Bovine Serum Albumin (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Interaction of Proteins with Synthetic Polyelectrolytes. I. Complexing of Bovine Serum AlbuminHerbert Morawetz and Walter L. Hughes Jr.Cite this: J. Phys. Chem. 1952, 56, 1, 64–69Publication Date (Print):January 1, 1952Publication History Published online1 May 2002Published inissue 1 January 1952https://pubs.acs.org/doi/10.1021/j150493a014https://doi.org/10.1021/j150493a014research-articleACS PublicationsRequest reuse permissionsArticle Views439Altmetric-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 InRedditEmail Other access options Get e-Alerts
Adsorption of HCN onto Copper@Copper-Oxide Core–Shell Nanoparticle Systems (2009)

Copper compounds are widely used as impregnants that enhance the removal of HCN by carbon-based filter media. The reaction mechanism involved is poorly understood. In this study, we have followed the reaction of HCN with pristine copper, copper oxide (CuO and Cu 2 O) and copper@copperoxide (Cu@Cu 2 O) core–shell nanoparticles of well-defined size and composition. We have established a cooperative reaction mechanism where both the copper oxide shell and copper core are required for the chemisorption of HCN onto copper nanoparticle impregnants. The suitability of copper@copperoxide nanoparticles as impregnants for the removal of HCN in respirator canisters is discussed.
The effect of feed enzymes phytase, protease and xylanase on pelleting of microalgal biomass (2021)

Lower energy consumption for producing feed pellets is an important part of the economy in the feed mill. The same is if physical pellet quality is degraded. The interest in using of novel ingredients is increasing due to requirements for the sustainable development goals. Defatted microalgae as by-product from biodiesel production is one of many novel ingredients. The purpose of this experiment was to understand how the addition of small amount of enzymes can reduce the flow resistance in the die during pellet discharge, without affecting the physical quality of pellets. Thus, possibly reduce the total consumption of electrical energy during compaction. Three enzymes, phytase, protease, xylanase, and combinations of those were added to defatted <i>Desmodesmus subspicatus</i> microalgae at 3 inclusion levels. Feed enzymes xylanase and phytase helped lowering the flow resistance of the material in the die. Reduction of flow resistance was in average 17 times lover when all three levels of enzyme phytase were used. The same was observed when 0.01% xylanase was added. All feed enzymes and their combination have evidently lowered underwater pellet swelling due to their hydrolytic activity at the surface of the microalgal particles. The hydrolytic activities of the feed enzymes did not affect hardness of the microalgal pellets. Contact angle degree between pellet surface and oil droplet was lowered when xylanase and protease was used at all three dosage levels. However, contact angle degree between pellet surface and water droplets was unaffected by the hydrolytic activity of enzymes.
In Situ Measurement of Electrosorption-Induced Deformation Reveals the Importance of Micropores in Hierarchical Carbons (2017)

Dimensional changes in carbon-based supercapacitor electrodes were investigated using a combination of electrochemical dilatometry and in situ small-angle X-ray scattering. A novel hierarchical carbon material with ordered mesoporosity was synthesized, providing the unique possibility to track electrode expansion and shrinkage on the nanometer scale and the macroscopic scale simultaneously. Two carbons with similar mesopore structure but different amounts of micropores were investigated, employing two different aqueous electrolytes. The strain of the electrodes was always positive, but asymmetric with respect to positive and negative applied voltages. The asymmetry strongly increased with increasing microporosity, giving hints to the possible physical origin of electrosorption induced pore swelling.
A 2.65-pJ/Bit 12.5-Gb/s 60-GHz OOK CMOS Transmitter and Receiver for Proximity Communications (2020)

This article presents a high data rate, high-efficiency 60-GHz on-off keying (OOK) CMOS transmitter and receiver. The transmitter consists of a voltage-controlled oscillator (VCO) and a modulator. The receiver consists of a low-noise amplifier, detector, and limiting amplifier (LA) and has a compact design. An analysis of the on-off isolation of the modulator and bandwidth of the LA reveals that the proposed transformer (TF) between the modulator and the VCO can improve the on-off isolation, and the feedforward capacitor can enhance the bandwidth. Implemented in the 65-nm CMOS technology, the transmitter and the receiver consume dc powers of 12.1 and 21 mW, respectively, at 12.5 Gb/s. Moreover, they occupy core chip areas of 0.09 and 0.06 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> , respectively. The transceiver system is constructed with on-board Yagi-Uda antennas, and it achieves 12.5 Gb/s wireless OOK data transmission for a pseudorandom binary sequence of length 2 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">7</sup> -1 with a bit error rate of less than 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-12</sup> . The proposed transceiver system achieves an energy efficiency of 2.65 pJ/bit.
SOSEMANUK: a fast software-oriented stream cipher (2008)

Sosemanuk is a new synchronous software-oriented stream cipher, corresponding to Profile 1 of the ECRYPT call for stream cipher primitives. Its key length is variable between 128 and 256 bits. It ac- commodates a 128-bit initial value. Any key length is claimed to achieve 128-bit security. The Sosemanuk cipher uses both some basic design principles from the stream cipher SNOW 2.0 and some transformations derived from the block cipher SERPENT. Sosemanuk aims at improv- ing SNOW 2.0 both from the security and from the efficiency points of view. Most notably, it uses a faster IV-setup procedure. It also requires a reduced amount of static data, yielding better performance on several architectures.
История «Молодой Гвардии Единой России» на Смоленщине (2012)

present article considers the history of creation of the All-Russia public youth organization The Young Guard of the United Russia (YGUR) on the territory of the Smolensk Region. artcle also substantiates the reasons of the appearance of the regional section of the YGUR as well as analyzes the basic directions of its work and describes numerous conducted actions (events) reflecting the ideologiocal platform of the organization.
SU-G-BRB-12: Polarity Effects in Small Volume Ionization Chambers in Small Fields (2016)

Purpose: Dosimetric quantities such as the polarity correction factor (Ppol) are important parameters for determining the absorbed dose and can influence the choice of dosimeter. Ppol has been shown to depend on beam energy, chamber design, and field size. This study is to investigate the field size and detector orientation dependence of Ppol in small fields for several commercially available micro-chambers. Methods: We evaluate the Exradin A26, Exradin A16, PTW 31014, PTW 31016, and two prototype IBA CC-01 micro-chambers in both horizontal and vertical orientations. Measurements were taken at 10cm depth and 100cm SSD in a Wellhofer BluePhantom2. Measurements were made at square fields of 0.6, 0.8, 1.0, 1.2, 1.4, 2.0, 2.4, 3.0, and 5.0 cm on each side using 6MV with both ± 300VDC biases. PPol was evaluated as described in TG-51, reported using −300VDC bias for Mraw. Ratios of PPol measured in the clinical field to the reference field are presented. Results: A field size dependence of Ppol was observed for all chambers, with increased variations when mounted vertically. The maximum variation observed in PPol over all chambers mounted horizontally was <1%, and occurred at different field sizes for different chambers. Vertically mounted chambers demonstrated variations as large as 3.2%, always at the smallest field sizes. Conclusion: Large variations in Ppol were observed for vertically mounted chambers compared to horizontal mountings. Horizontal mountings demonstrated a complicated relationship between polarity variation and field size, probably relating to differing details in each chambers construction. Vertically mounted chambers consistently demonstrated the largest PPol variations for the smallest field sizes. Measurements obtained with a horizontal mounting appear to not need significant polarity corrections for relative measurements, while those obtained using a vertical mounting should be corrected for variations in PPol.
BCL11A Polymorphism and HbF Response to Hydroxyurea in Adult Patients with Sickle Cell Disease (2011)

Abstract Abstract 1051 Several genetic polymorphisms are known to influence baseline hemoglobin F (HbF) levels in patients with sickle cell disease (SCD). These include XmnI polymorphisms in the Gγ globin promoter, polymorphisms of HBS1L-MYB and more recently BCL11A. Over the past several years, many studies have shown that polymorphisms in the BCL11A gene are strongly associated with baseline HbF levels in various populations with SCD. The strongest association has been found with a SNP (G→A) in the intron2 of the BCL11A gene (rs4671393). SCD patients on hydroxyurea (HU) therapy display a wide range of HbF responses. The factors underlying this heterogeneity are not clearly delineated. We undertook a study of the BCL11A rs4671393 polymorphism in a population of adult SCD patients who have been on HU therapy for an extended period. Fifty-nine African-American patients with SCD (25 male, mean age 33.9 and 34 female, mean age 34.5) were studied for BCL11A rs4671393 polymorphism and its correlation to HbF response (percent change in HbF from baseline to maximal response). The minor allele frequency (MAF) of A was 0.288. The distribution of HbF response (δHbF) was plotted against the genotype and is shown in the figure. As can be seen, patients with an A allele had a higher δHbF (12.1%) as opposed to those with the wild type (G/G), which was at 10.6%. Those homozygous for the minor allele (A/A) showed a 10.8% increase in HbF in response to HU therapy. These results are suggestive of a higher HbF response to HU when an A allele is present at this position. The number of homozygous for the minor allele are too small to reach a definite conclusion. Disclosures: No relevant conflicts of interest to declare.
The NerveSeeker: a system for automated nerve localization. (1992)

These experimental results suggest that clinical tests of the NerveSeeker would be appropriate.
A case of acute antidonor antibody‐mediated humoral rejection after renal transplantation with specific consideration of serial graft biopsy histology (2002)

A 61-year-old-woman with end-stage renal disease caused by IgA nephropathy received living unrelated kidney transplantation from her husband in February 2001. Pre-transplant donor-specific T- and B-cell cross-match was negative. Immunosuppressive treatment consisted of tacrolimus (TAC), mycophenolate mofetil (MMF), methylprednisolone (MP) and antilymphocyte globulin (ALG). The kidney functioned immediately after kidney transplantation. On post-operative day 9, the level of serum creatinine (S-Cr) rose from 1.1 to 1.5 mg/dL. The allograft biopsy specimen taken on the day revealed moderate accumulations of polymorphonuclear leucocytes in peritubular capillaries (PTCs), dilatation of PTCs and transplant glomerulitis, moderate to severe. Immunofluorescent study of a frozen section of the allograft biopsy specimen showed a strong, diffusely distributed endothelial staining pattern in PTCs for the stable complement split product C4d. Post-transplant donor-specific T- and B-cell cross-matches performed on post-operative day 13 were positive. From the allograft biopsy and the positive post-transplant donor-specific T- and B-cell cross-matching, acute humoral rejection (AHR) associated with the development of antidonor antibodies (ADA) was diagnosed. Plasma exchange (PE) treatment was initiated on day 11. After a total of 13 treatments of PE, donor-specific T- and B-cell cross-matches became negative and the biopsy performed on day 72 revealed mild transplant glomerulopathy without accumulation of polymorphonuclear leucocytes in PTCs or a C4d staining pattern in PTCs of immunofluorescence. The allograft functioned well and the creatinine level was 1.1 mg/dL 7 months post-transplant. This was a case of AHR after renal transplantation associated with the development of ADA, which was triggered by spousal-donor antigens. The presence of widespread C4d deposition in PTCs in renal allograft biopsies played a role in the diagnosis of AHR and the diagnosis was confirmed by positive donor-specific T- and B-cell cross-matches at the time of rejection, which were negative at pre-transplantation. Several treatments of PE were effective for resolving AHR in this case and the effect of PE in the treatment of AHR could be assessed by the degree of peritubular capillaritis (PTCitis) and C4d deposits in PTCs.
Leptomeningeal Metastasis from Adrenocortical Carcinoma: A Case Report (2020)

Adrenocortical carcinoma (ACC) is an uncommon endocrine malignancy with limited treatment options. While the overall 5-year survival rate in patients with ACC is 35%, the disease is often rapidly progressive with long-term survival in only 5% of patients. Although tumor stage, grade, and excess hormonal activity predict unfavorable prognosis, additional biomarkers are needed to identify patients with aggressive disease. A 23-year-old woman presented with rapidly progressing signs and symptoms of Cushing's syndrome, with associated abdominal pain and fullness. Evaluation revealed a large left adrenal mass which had developed over 8 months. En bloc surgical resection was performed by an endocrine surgeon, and pathology revealed adrenocortical carcinoma with Ki67 of 60%. Despite adjuvant treatment with mitotane and etoposide-doxorubicin-carboplatin chemotherapy, the patient had rapid disease progression with metastatic spread to liver, lung, bone, brain, and leptomeningies, and she died 11 months after the initial diagnosis. Subsequent analysis of the patient's tumor revealed mutations in <i>TP53</i> and <i>MEN1</i>. RNA sequencing was compared against the the Cancer Genome Atlas data set and clustered with the high steroid, proliferative subtype, associated with the worst prognosis. The tumor also demonstrated a low <i>BUB1B/PINK1</i> ratio and G0S2 hypermethylation, both predictive of very aggressive ACC. This case represents a subset of ACC characterized by rapid and fatal progression. Clinically available predictors as well as recently reported molecular signatures and biomarkers correlated with this tumor's aggressiveness, suggesting that development and validation of combinations of biomarkers may be useful in guiding personalized approaches to patients with ACC.