gebhart/patrepeval huggingface dataset:
Optimal constellation distortion for PAR reduction in OFDM systems (2008)

The high peak-to-average-power ratio (PAR) of orthogonal frequency division multiplexing (OFDM) transmission systems significantly reduces the power efficiency or performance of such systems, and many techniques have been proposed to deal with this problem. Recently, the active constellation extension (ACE) algorithm has received much attention, where the main idea is to reduce the PAR by introducing a perturbation of the transmit constellation that does not reduce the constellationpsilas minimum-distance. In this paper, a different approach is taken where the constellationpsilas minimum-distance is reduced to lower the PAR but the constellation perturbation is done in an optimal way to improve the system performance. The problem of optimally trading off PAR reduction and constellation distortion is shown to be a convex optimization problem that could be solved very efficiently. The proposed idea has no data-rate loss and does not require the transmission of side-information.
Analysis of factors regulating erythrocyte deformability. (1980)

Using a laser diffraction technique, we have studied factors that influence the deformability of erythrocytes. Variations in suspending medium osmolality and applied shear stress were employed to isolate the individual contributions to whole cell deformability of internal viscosity, surface area-to-volume ratio, and viscoelastic properties of the membrane. An experimental system was devised in which normal cells were modified in vitro to induce specific alterations in each factor. Measurements of deformability as a function of medium osmolality showed characteristic behavior of the modified cells. Reduced surface area-to-volume ratio was detected by an exaggeration of the normal decrease in deformability as medium osmolality was decreased. In contrast, increased internal viscosity was detected by an increase in deformability as osmolality was decreased. Finally, decreased membrane flexibility was detected by reduced deformation at low shear stress. These methods of analysis were applied to cells from patients with hereditary spherocytosis, hereditary pyropoikilocytosis, and hemoglobin CC disease to define the basis of reduced deformability. Hereditary spherocytes showed the combined effects of reduced surface area and increased internal viscosity. Hereditary pyropoikilocytes revealed the effects of severely reduced surface area-to-volume ratio. Hemoglobin CC cells showed only the effects of high internal viscosity. An increase in the membrane shear modulus (decreased membrane deformability) was not evident in these disorders.
Serotonin receptor 1A knockout: An animal model of anxiety-related disorder (1998)

To investigate the contribution of individual serotonin (5-hydroxytryptamine; 5-HT) receptors to mood control, we have used homologous recombination to generate mice lacking specific serotonergic receptor subtypes. In the present report, we demonstrate that mice without 5-HT1A receptors display decreased exploratory activity and increased fear of aversive environments (open or elevated spaces). 5-HT1A knockout mice also exhibited a decreased immobility in the forced swim test, an effect commonly associated with antidepressant treatment. Although 5-HT1A receptors are involved in controlling the activity of serotonergic neurons, 5-HT1A knockout mice had normal levels of 5-HT and 5-hydroxyindoleacetic acid, possibly because of an up-regulation of 5-HT1B autoreceptors. Heterozygote 5-HT1A mutants expressed approximately one-half of wild-type receptor density and displayed intermediate phenotypes in most behavioral tests. These results demonstrate that 5-HT1A receptors are involved in the modulation of exploratory and fear-related behaviors and suggest that reductions in 5-HT1A receptor density due to genetic defects or environmental stressors might result in heightened anxiety.
High Throughput Fingerprint Analysis of Large-Insert Clones (1997)

As part of the Human Genome Project, the Washington University Genome Sequencing Center has commenced systematic sequencing of human chromsome 7. To organize and supply the effort, we have undertaken the construction of sequence-ready physical maps for defined chromosomal intervals. Map construction is a serial process composed of three main activities. First, candidate STS-positive large-insert PAC and BAC clones are identified. Next, these candidate clones are subjected to fingerprint analysis. Finally, the fingerprint data are used to assemble sequence-ready maps. The fingerprinting method we have devised is key to the success of the overall approach. We present here the details of the method and show that the fingerprints are of sufficient quality to permit the construction of megabase-size contigs in defined regions of the human genome. We anticipate that the high throughput and precision characteristic of our fingerprinting method will make it of general utility.
Activation of Wnt Signaling Arrests Effector Differentiation in Human Peripheral and Cord Blood-Derived T Lymphocytes (2011)

The canonical Wnt/β-catenin signaling pathway plays an important role in thymocyte development and T cell migration, but little is known about its role in naive-to-effector differentiation in human peripheral T cells. We show that activation of Wnt/β-catenin signaling arrests human peripheral blood and cord blood T lymphocytes in the naive stage and blocks their transition into functional T effector cells. Wnt signaling was induced in polyclonally activated human T cells by treatment either with the glycogen synthase kinase 3β inhibitor TWS119 or the physiological Wnt agonist Wnt-3a, and these T cells preserved a naive CD45RA(+)CD62L(+) phenotype compared with control-activated T cells that progressed to a CD45RO(+)CD62L(-) effector phenotype, and this occurred in a TWS119 dose-dependent manner. TWS119-induced Wnt signaling reduced T cell expansion, as a result of a block in cell division, and impaired acquisition of T cell effector function, measured by degranulation and IFN-γ production in response to T cell activation. The block in T cell division may be attributed to the reduced IL-2Rα expression in TWS119-treated T cells that lowers their capacity to use autocrine IL-2 for expansion. Collectively, our data suggest that Wnt/β-catenin signaling is a negative regulator of naive-to-effector T cell differentiation in human T lymphocytes. The arrest in T cell differentiation induced by Wnt signaling might have relevant clinical applications such as to preserve the naive T cell compartment in Ag-specific T cells generated ex vivo for adoptive T cell immunotherapy.
MG53 Regulates Membrane Budding and Exocytosis in Muscle Cells (2008)

Membrane recycling and remodeling contribute to multiple cellular functions, including cell fusion events during myogenesis. We have identified a tripartite motif (TRIM72) family member protein named MG53 and defined its role in mediating the dynamic process of membrane fusion and exocytosis in striated muscle. MG53 is a muscle-specific protein that contains a TRIM motif at the amino terminus and a SPRY motif at the carboxyl terminus. Live cell imaging of green fluorescent protein-MG53 fusion construct in cultured myoblasts showed that although MG53 contains no transmembrane segment it is tightly associated with intracellular vesicles and sarcolemmal membrane. RNA interference-mediated knockdown of MG53 expression impeded myoblast differentiation, whereas overexpression of MG53 enhanced vesicle trafficking to and budding from sarcolemmal membrane. Co-expression studies indicated that MG53 activity is regulated by a functional interaction with caveolin-3. Our data reveal a new function for TRIM family proteins in regulating membrane trafficking and fusion in striated muscles.
[High-efficiency expression of a receptor-binding domain of SARS-CoV spike protein in tobacco chloroplasts]. (2014)

Chloroplast-based expression system is promising for the hyper-expression of plant-derived recombinant therapeutic proteins and vaccines. To verify the feasibility of obtaining high-level expression of the SARS subunit vaccine and to provide a suitable plant-derived vaccine production platform against the severe acute respiratory syndrome coronavirus (SARS-CoV), a 193-amino acid fragment of SARS CoV spike protein receptor-binding domain (RBD), fused with the peptide vector cholera toxin B subunit (CTB), was expressed in tobacco chloroplasts. Codon-optimized CTB-RBD sequence was integrated into the chloroplast genome and homoplasmy was obtained, as confirmed by PCR and Southern blot analysis. Western blot showed expression of the recombinant fusion protein mostly in soluble monomeric form. Quantification of the recombinant fusion protein CTB-RBD was conducted by ELISA analysis from the transplastomic leaves at different developmental stages, attachment positions and time points in a day and the different expression levels of the CTB-RBD were observed with the highest expression of 10.2% total soluble protein obtained from mature transplastomic leaves. Taken together, our results demonstrate the feasibility of highly expressing SARS subunit vaccine RBD, indicating its potential in subsequent development of a plant-derived recombinant subunit vaccine and reagents production for antibody detection in SARS serological tests.
Randomized, Phase III Study of Weekly Paclitaxel in Combination With Carboplatin Versus Standard Every-3-Weeks Administration of Carboplatin and Paclitaxel for Patients With Previously Untreated Advanced Non–Small-Cell Lung Cancer (2008)

All efficacy parameters were similar between the two treatment arms. The favorable nonhematologic toxicity profile of arm 1 makes this an alternative treatment option for patients with advanced NSCLC.
Variable effects of indomethacin and four related compounds on lymphocyte blastogenesis and cell-mediated cytotoxicity. (1981)

Activation of spleen cell cultures by T-cell mitogens appeared enhanced or suppressed by the presence of some nonsteroid anti-inflammatory drugs such as indomethacin and indomethacin esters in a dose-dependent fashion. However blastogenesis of B cells by bacterial lipopolysaccharide was inhibited by the same drugs at every concentration tested. In vivo treatment of mice with indomethacin led to an inhibition of both T and B lymphocyte responses to mitogens. Addition of indomethacin to Concanavalin A-stimulated spleen cells from indomethacin-treated mice further inhibited the response to the mitogen. Indomethacin and indomethacin esters induced only a slight inhibition of cell-mediated cytotoxic reactions when added to cultures, whereas these reactions were markedly inhibited in spleen cells from indomethacin-treated mice.
ORGANIZATIONAL ADOPTION OF GREEN IS & IT: AN INSTITUTIONAL PERSPECTIVE (2009)

This article examines how institutional pressures affect the adoption of green IS&IT across organizations. From the natural-resource-based perspective, it examines green IS&IT practices with strategic foci on pollution prevention, product stewardship, and sustainable development. Each category incorporates the separate roles played by IT (as a problem) and IS (as a solution). The partial least square method was employed to analyze the survey replies from 75 organizations. The results show that mimetic and coercive pressures significantly drive green IS&IT adoption. In particular, outcome-based imitation and imposition-based coercion represent major institutional processes. The results also suggest the complementary relationship between mimetic and coercive pressures. Such interaction significantly motivates the green IS&IT adoption focusing on product stewardship. These findings contribute to existing knowledge on the proenvironmental behaviors of organizations, demonstrate the interaction between institutional forces, and further current understanding of green IS&IT adoption. The study concludes with implications for research and practice.
Sensitive fluorescence method for detecting DNA-ligation amplification products (1991)

Journal Article Sensitive fluorescence method for detecting DNA-ligation amplification products Get access E S Winn-Deen, E S Winn-Deen Applied Biosystems, Inc., Foster City, CA 94404 Search for other works by this author on: Oxford Academic Google Scholar D M Iovannisci D M Iovannisci Applied Biosystems, Inc., Foster City, CA 94404 Search for other works by this author on: Oxford Academic Google Scholar Clinical Chemistry, Volume 37, Issue 9, 1 September 1991, Pages 1522–1523, https://doi.org/10.1093/clinchem/37.9.1522 Published: 01 September 1991
Gangliosides influence angiogenesis in an experimental mouse brain tumor. (1999)

Gangliosides are sialated glycosphingolipids present on the plasma membranes of all vertebrate cells. Tumors shed gangliosides into the extracellular microenvironment, which may influence tumor-host cell interactions. We have investigated the role of gangliosides on the growth and angiogenesis of the EPEN experimental mouse brain tumor. EPEN cells express only ganglioside G(M3), and the solid tumors formed in vivo are sparsely vascularized with extensive necrosis. We stably transfected the EPEN cells with the cDNA for N-acetylgalactosaminyl transferase, a key enzyme for the synthesis of complex gangliosides. In addition to G(M3), the transfected cell line (EPEN-GNT) expressed complex gangliosides G(M2), G(M1), and G(D1a). The EPEN-GNT tumor was more densely vascularized with less necrosis and grew more rapidly than the nontransfected EPEN or mock-transfected (EPEN-V) control tumors. Also, VEGF gene expression was higher in the EPEN-GNT tumor than in the control tumors. The synthesis of complex gangliosides in the EPEN-GNT tumor cells also stimulated vascularization in an in vivo Matrigel assay for angiogenesis. These results indicate that the ratio of G(M3) to complex gangliosides can influence the growth and angiogenic properties of the EPEN experimental brain tumor and are consistent with previous findings in other systems. We conclude that gangliosides may be important modulators of brain tumor angiogenesis.
Paraneoplastic pemphigus (2007)

Paraneoplastic pemphigus (PNP) is a life-threatening autoimmune blistering skin disease. Clinically, it is characterized by severe mucosal erosions and various cutaneous lesions associated with lymphoproliferative neoplasmas. Suprabasal acantholysis and clefts with scattered necrotic keratinocytes are the unique histopathological features. PNP patient sera recognize multiple antigens, which have been identified as the plakin protein family that includes desmoplakin, bullous pemphigoid antigen I (BPAG1), envoplakin and periplakin, and desmogleins 1 and 3. Castleman's tumor, non-Hodgkin's lymphoma, thymoma, follicular dendritic cell sarcoma and chronic lymphocytic leukemia are the commonly associated neoplasmas in PNP. We have also demonstrated that the autoantibodies reacting to epidermal proteins are directly produced by the cells in the associated tumors. Bronchiolitis obliterans is frequently found in PNP and may cause respiratory failure and death. In our experience, the early detection and removal of the tumor and i.v. administration of immunoglobulin are critical for the treatment of PNP.
Prevalence, Significance, and Management of Aortic Insufficiency in Continuous Flow Left Ventricular Assist Device Recipients (2014)

AI is common in patients with continuous flow left ventricular assist devices and may lead to clinical decompensation requiring surgical correction. The prevalence of AI is substantially less in patients whose AV opens, and optimized loading conditions may reduce AI prevalence in those patients in whom AV opening cannot be achieved.
Recent Developments in β-Cell Differentiation of Pluripotent Stem Cells Induced by Small and Large Molecules (2014)

Human pluripotent stem cells, including human embryonic stem cells (hESCs) and human induced pluripotent stem cells (hiPSCs), hold promise as novel therapeutic tools for diabetes treatment because of their self-renewal capacity and ability to differentiate into beta (β)-cells. Small and large molecules play important roles in each stage of β-cell differentiation from both hESCs and hiPSCs. The small and large molecules that are described in this review have significantly advanced efforts to cure diabetic disease. Lately, effective protocols have been implemented to induce hESCs and human mesenchymal stem cells (hMSCs) to differentiate into functional β-cells. Several small molecules, proteins, and growth factors promote pancreatic differentiation from hESCs and hMSCs. These small molecules (e.g., cyclopamine, wortmannin, retinoic acid, and sodium butyrate) and large molecules (e.g. activin A, betacellulin, bone morphogentic protein (BMP4), epidermal growth factor (EGF), fibroblast growth factor (FGF), keratinocyte growth factor (KGF), hepatocyte growth factor (HGF), noggin, transforming growth factor (TGF-α), and WNT3A) are thought to contribute from the initial stages of definitive endoderm formation to the final stages of maturation of functional endocrine cells. We discuss the importance of such small and large molecules in uniquely optimized protocols of β-cell differentiation from stem cells. A global understanding of various small and large molecules and their functions will help to establish an efficient protocol for β-cell differentiation.
Perspectives of chronic renal failure (2002)

SUMMARY: End‐stage renal disease (ESRD) is a major source of morbidity and the increasing number of chronic dialysis patients is a significant health‐care issue in many developed as well as developing countries. In the present brief review the current status of chronic dialysis is discussed; and Japan and the USA, two major countries in which chronic dialysis programmes are well developed, are compared. Also discussed is the economic impact, the status of renal transplantation and its future possibilities, recent efforts to halt progression of chronic renal disease, in particular, diabetic nephropathy (which has become the major cause of ESRD in many developed countries), and future perspectives in renal research. It is hoped that, in the future, perhaps by the mid‐21 st century, chronic dialysis may become the exception in therapy through our efforts.
Hepatitis C virus: Buoyant density if the factor VIII‐derived isolate in sucrose (1991)

Physicochemical and molecular characterization studies of hepatitis C virus (HCV), the major causative agent of parenterally transmitted non-A, non-B hepatitis (PT-NANBH), strongly suggest that it is a pesti-/flavivirus-like virus. Additional studies show that the buoyant density of plasma-derived HCV in sucrose is significantly lower than that of most tissue culture-derived flaviviruses (1.20 g/cm3). Our finding suggests, but does not prove, that at least one physicochemical property of HCV is more similar to that of the pestiviruses, bovine viral diarrhea virus (BVDV) and hog cholera virus (HogCV), than that of the flaviviruses.
Aluminum in parenteral products: analysis, reduction, and implications for pediatric TPN. (1989)

Performance and cost of the best available analytical methodology for the measurement of aluminum in parenteral products are presented. Typical levels of aluminum in representative solutions are summarized. A methodical approach to the minimization of aluminum contamination in the manufacturing process is considered in light of aqueous aluminum chemical considerations. Results of long-term clinical follow-up studies of infants maintained on currently manufactured TPN solutions indicate no adverse pathology arising from aluminum.
Magneto-Plasmonics and Resonant Interaction of Light with Dynamic Magnetisation in Metallic and All-Magneto-Dielectric Nanostructures (2015)

A significant interest in combining plasmonics and magnetism at the nanoscale gains momentum in both photonics and magnetism sectors that are concerned with the resonant enhancement of light-magnetic-matter interaction in nanostructures. These efforts result in a considerable amount of literature, which is difficult to collect and digest in limited time. Furthermore, there is insufficient exchange of results between the two research sectors. Consequently, the goal of this review paper is to bridge this gap by presenting an overview of recent progress in the field of magneto-plasmonics from two different points of view: magneto-plasmonics, and magnonics and magnetisation dynamics. It is expected that this presentation style will make this review paper of particular interest to both general physical audience and specialists conducting research on photonics, plasmonics, Brillouin light scattering spectroscopy of magnetic nanostructures and magneto-optical Kerr effect magnetometry, as well as ultrafast all-optical and THz-wave excitation of spin waves. Moreover, readers interested in a new, rapidly emerging field of all-dielectric nanophotonics will find a section about all-magneto-dielectric nanostructures.
Therapy of Myelodysplastic Syndrome (MDS) with Azacitidine Given in Combination with Etanercept: A Phase II Study. (2007)

Abstract The heterogeneity of Myelodysplastic Syndrome (MDS) has spurred interest in combining agents with different mechanisms of action in an attempt to improve the frequency and robustness of responses. Laboratory studies in patients with MDS have shown a shift in the relative levels of TNF-α receptor 1 and 2 in favor of receptor 2 in patients with more advanced MDS. Receptor 2 conveys only proliferative (not apoptotic) signals, and blockade of TNF-α may thus interfere with disease progression, while possibly protecting normal hematopoietic precursors. Therefore, we combined an established regimen of azacitidine with administration of the soluble TNF receptor antagonist etanercept in patients with advanced MDS. Twenty-three patients were treated with azacitidine, 75mg/m2/day for 7 days combined with etanercept, 25mg sc twice a week for two weeks every 28 days. Eighteen patients with MDS (4 RAEB-1, 11 RAEB-2, 1 CMML-1, and 2 CMML-2) have completed at least 3 months of therapy and were considered evaluable. Five of these patients had intermediate-1 risk, seven intermediate-2 and six high risk MDS by IPSS. Using the revised International Working Group (IWG) criteria for MDS, 14 patients (78%) responded: 5 patients (28%) had complete remissions (CR), 8 patients (44%) had partial remissions (PR) and 1 patient (6%) had hematologic improvement of neutrophils. Three patients have been on therapy for two years with sustained responses. Two patients developed pneumonias. The most common grade ¾ adverse events were hematological toxicity (78%). This therapeutic combination may be superior to treatment with azacitidine alone and warrants further study.