gebhart/patrepeval huggingface dataset:
Cloning of <i>PCP1</i>, a member of a family of pollen coat protein (<i>PCP</i>) genes from <i>Brassica oleracea</i> encoding novel cysteine‐rich proteins involved in pollen‐stigma interactions (1996)

The pollen coatings of both Brassica oleracea and Brassica napus contain a small family of basic 6-8 kDa proteins which are released on to the stigmatic surface on pollination. Following partial amino-acid sequencing of one of these pollen coat proteins (PCPs), PCR primers were constructed to isolate the PCP sequence from anther mRNA using RT-PCR. A cDNA was obtained which, in Northern hybridization experiments, revealed a characteristic pattern of expression during late stages of anther development. Interestingly, in situ hybridization revealed expression of this sequence to be confined to the cytoplasm of the trinucleate pollen grains: no signal was detected in the tapetum. Southern hybridization experiments have shown the gene (PCP1) to be a member of a large family of between 30 and 40 PCP genes in the genome of Brassica oleracea. Surprisingly, RFLP experiments showed reduced copy number (one to two copies) in some of the F2 segregants, perhaps resulting from the clustering of PCP sequences. PCP1 contains a single intron and encodes a small, basic peptide 83 amino acids in length featuring a hydrophobic signal peptide sequence separated from the more hydrophilic, cysteine-rich mature protein. The central part and C-terminal region of the peptide contain a characteristic and invariant pattern of eight cysteines which show clear homology with a number of other anther-specific genes; the remainder of the sequence shows little similarity to other sequences on the data bases. The product of PCP1 is a member of a large family of similar proteins, some of which have been demonstrated to bind specifically to S-locus glycoproteins, but does not appear to be genetically linked to the S-locus.
Role of PPE18 Protein in Intracellular Survival and Pathogenicity of Mycobacterium tuberculosis in Mice (2012)

Taken together our data suggest that PPE18 could be a crucial virulence factor for intracellular survival of Mtb.
Storage and Release of Soluble Hexavalent Chromium from Chromate Conversion Coatings Equilibrium Aspects of Cr[sup VI] Concentration (2000)

The release of soluble CrVI species by a chromate conversion coating (CCC) was monitored quantitatively by ultraviolet-visible spectroscopy. By careful selection of measurement wavelength (339 nm), the CrVI concentration could be determined without regard to solution pH or CrVI speciation. The CrVI concentration in solution over a CCC reached an equilibrium value that depended on pH, ionic strength, and the ratio of the CCC surface area to the solution volume (A/V). In separate experiments, the adsorption of CrVI by synthetic CrIII hydroxide to form a CrIII-CrVI mixed oxide was observed, and also led to an equilibrium concentration of CrVI in solution. The equilibrium CrVI concentration was determined for a variety of A/V values on both AA1100 and AA2024-T3 aluminum alloys. The results are inconsistent with release mechanisms based on the solubility of a CrVI salt in the solution or depletion of CrVI from the CCC. However, the observed concentrations are consistent with a mechanism similar to a Langmuirian adsorption-desorption equilibrum of CrVI on a porous, insoluble CrIII hydroxide matrix. The CrIII hydroxide matrix has a finite number of CrVI binding sites and exhibits a nonlinear relationship between solution and solid CrVI concentrations governed by an equation similar to a Langmuir adsorption isotherm. The proposed model incorporates reversible adsorption and de-sorption of CrVI, with adsorption favored at low pH during formation of the CCC, and desorption favored in field conditions. The model quantitatively predicts the observed concentrations after determining the binding constant from fits to the data. The model explains the capacity of a CCC to release active CrVI corrosion inhibitor and provides strong evidence that CrVI storage in a CCC involves reversible formation of a CrVI-O-CrIII mixed oxide.
Classification of Surface EMG Signal Based on Energy Spectra Change (2008)

In this paper, we introduced a novel and simple methods of extracting the general features of two surface EMG signal patterns: forearm supination (FS) and forearm pronation (FP) surface EMG signals. The surface EMG signal was divided into two segments appropriately at the preparation stage and the action stages. Relative wavelet packet energy (RWPE, symbolized by p <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">np</sub> and p <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">na</sub> respectively at the preparation stage and the action stages, where n denotes the nth frequency band (FB)) of the surface EMG signal was firstly calculated, and then the change (P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">n</sub> =p <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">na</sub> -p <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">n</sub> p) was determined. The results show that P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">n</sub> from some FBs could effectively characterize the general characteristics of the two surface EMG signal patterns. Compared with P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">n</sub> in other FBs, P <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> (in 93.75-125 Hz) had more appropriate features.
Hierarchical Group Based Mutual Authentication and Key Agreement for Machine Type Communication in LTE and Future 5G Networks (2017)

In view of the exponential growth in the volume of wireless data communication among heterogeneous devices ranging from smart phones to tiny sensors across a wide range of applications, 3GPP LTE-A has standardized Machine Type Communication (MTC) which allows communication between entities without any human intervention. The future 5G cellular networks also envisage massive deployment of MTC Devices (MTCDs) which will increase the total number of connected devices hundredfold. This poses a huge challenge to the traditional cellular system processes, especially the traditional Mutual Authentication and Key Agreement (AKA) mechanism currently used in LTE systems, as the signaling load caused by the increasingly large number of devices may have an adverse effect on the regular Human to Human (H2H) traffic. A solution in the literature has been the use of group based architecture which, while addressing the authentication traffic, has their share of issues. This paper introduces Hierarchical Group based Mutual Authentication and Key Agreement (HGMAKA) protocol to address those issues and also enables the small cell heterogeneous architecture in line with 5G networks to support MTC services. The aggregate Message Authentication Code based approach has been shown to be lightweight and significantly efficient in terms of resource usage compared to the existing protocols, while being robust to authentication message failures, and scalable to heterogeneous network architectures.
Photoacoustic microscope (1979)

Photoacoustic effects can be used to generate microscopic light absorption images of various samples, even of the surfaces of thick nontransparent materials. The technique is sensitive to structures immediately beneath the surface as well. Resolution of a few micrometres is easily obtained by using standard microscopic objectives.
The Future X Network: A Bell Labs Perspective (2015)

We are at the dawn of an era in networking that has the potential to define a new phase of human existence. This era will be shaped by the digitization and connection of everything and everyone with the goal of automating much of life, effectively creating time by maximizing the efficiency of everything we do and augmenting our intelligence with knowledge that expedites and optimizes decision-making and everyday routines and processes. The Future X Network: A Bell Labs Perspective outlines how Bell Labs sees this future unfolding and the key technological breakthroughs needed at both the architectural and systems levels. Each chapter of the book is dedicated to a major area of change and the network and systems innovation required to realize the technological revolution that will be the essential product of this new digital future.
Decentralized reactive collision avoidance for multivehicle systems (2008)

This paper addresses a novel approach to the n-vehicle collision avoidance problem. The vehicle model used is a planar unicycle, chosen for its wide applicability to ground, sea, and air vehicles. This paper generalizes previous work with constant-speed vehicles to models that include the ability to slow down, stop and reverse. An algorithm is developed that works in conjunction with any desired controller to guarantee all vehicles remain free of collisions while attempting to follow their desired control. This algorithm is reactive and decentralized, making it well suited for real time applications, and explicitly accounts for actuation limits. Results are demonstrated in simulation.
Demetallization of heavy residual oils. Final report (1973)

The report gives results of a program to develop an improved demetallization catalyst so that residuum with high-sulfur and high-metals content could be desulfurized economically. Twenty-eight catalysts were prepared, representing a number of combinations of supports and promoters. Impregnating 20 x 50 mesh granulated activated bauxite with promoters provided the necessary catalytic activity and resistance to poisoning. The residua that were demetallized were Tia Juana, Bachaquero, and Gach Saran vacuum residua. Indications are that these residua can be economically desulfurized to 0.5% sulfur fuel oil.
The Nature of Indifference Curves (1934)

Journal Article The Nature of Indifference Curves Get access R. G. D. Allen R. G. D. Allen London Search for other works by this author on: Oxford Academic Google Scholar The Review of Economic Studies, Volume 1, Issue 2, February 1934, Pages 110–121, https://doi.org/10.2307/2967617 Published: 01 February 1934
An Improved Procedure for Bromomethylation of Aromatics Using Phase-Transfer Catalysis. Rapid Bis-haloalkylation (1989)

Bromomethylation of aromatic hydrocarbons proceeds in >90% yield using the phase-transfer catalyst tetradecyltri-methylammonium bromide with 1,3,5-trioxane and a mixture of 48% aqueous hydrobromic acid and glacial acetic acid; diaryl-methane by-products are not formed.
Testing system research based on virtual electricity meter software (2010)

With the further construction of smart grid by State Grid, demand for measuring equipment including smart electricity meter and acquisition terminal certainly will increase. In this paper, a new testing system based on virtual meter is proposed, contraposing weakness in the function testing equipment and consistency test. Conveniently, it can bring power enterprises automation and reliability of testing improvement, lower the cost, and help manufacturers to promote products. Through researching for the system, we find that it can effectively improve each equipment testing of the user information acquisition system, provide power enterprise effective means of testing conformance to protocols and detecting function under laboratory conditions, and support electric information acquisition system staunch technology.
Evaluation on network load balancing in Xen (2012)

Network load balancing is usually used to distribute workload across multiple network links, to improve the scalability and availability of network servers. Virtual machine is a technique in consolidated servers, co-located hosting facilities, distributed web services, and security platforms. We have implemented load balancing by NICs bonding on Xen which is an open source software for virtualization. The bonding of NICs also provides fault tolerance using network redundant connection to reduce network downtime. Two approaches are presented using bonding driver in Linux operating system with Xen. The evaluation shows that, bonding physical NICs in Xen virtual machine monitor (VMM) brings a higher throughput and lower CPU cost. Bonding in DomU has certain advantages in data path redundant and short message responses at the price of costing extra 10% CPU resources.
A molecular mechanics approach to the understanding of presynaptic selectivity for centrally acting dopamine receptor agonists of the phenylpiperidine series (1986)

Molecular mechanics (MMP2) calculated geometries and conformational energies have been employed in an attempt to elucidate the molecular basis for presynaptic dopamine receptor selectivity of centrally acting agonists of the phenylpiperidine series. A receptor interaction model based on the McDermed receptor concept, on superimpositions of calculated structures, and on conformational analysis is presented. The model focuses on the interaction between N-alkyl substituents and the receptor. From comparisons with rigid structures having either agonistic or antagonistic properties it is concluded that the presynaptically selective compound (S)-3-(3-hydroxyphenyl)-N-n-propylpiperidine [S)-3PPP) is acting as an agonist in one rotameric form and as an antagonist in another one. The selectivity of (S)-3PPP and the nonselectivity of its enantiomer are suggested to be due to differences in the interactions between N-alkyl substituents and the receptor. The receptor model presented led to the hypothesis that the piperidine ring in the compounds studied should be equivalent to a N-methyl group in its receptor interactions. Examples are given in support of this idea. Presynaptic selectivity was predicted for an aminotetralin derivative and was also observed in subsequent testing.
A Review on Solvent less coating: Recent Advances in Pharmaceutical Coating (2011)

There are many ways to coat tablets. Coatings are a very important part in the formulation of pharmaceutical dosage form to achieve excellent formulation quality. Coating is also providing superior physical and chemical protection for the drugs in the dosage forms, and modification of drug release characteristics. Almost all types of film coatings are applied as aqueous-or organic-based polymer solutions. Both film coating techniques have some disadvantages. Solventless coating technologies can overcome many of the disadvantages associated with the use of solvents (e.g., solvent exposure, solvent disposal, and residual solvent in product) in pharmaceutical coating. Solventless processing reduces the overall cost by eliminating the tedious and expensive processes of solvent disposal/treatment. In addition, it can significantly reduce the processing time because there is no drying/evaporation step. This environment-friendly performance without any heat in most cases (except hot-melt coating) and thus can provide an alternative technology to coat temperature-sensitive drugs. In this review discusses about 6 different types of solventless coating methods. Solventless coating techniques are compression coating, hot-melt coating, supercritical fluid spray coating, electrostatic coating, dry powder coating, and photocurable coating. All these techniques that can be used to coat the pharmaceutical dosage forms with excellent quality within less consuming time.
Platelet glycoprotein IIb/IIIa inhibitor therapy in acute myocardial infarction (1998)

There are many limitations to reperfusion therapy for acute myocardial infarction. Preliminary studies have explored the potential of using more potent antiplatelet therapy. Abciximab, eptifibatide, and lamifiban are new agents that inhibit platelet glycoprotein IIb/IIIa, which serves as the final common pathway for platelet aggregation. Infarct artery patency occurs more rapidly, normal coronary blood flow is more often restored, and reperfusion is more stable when these agents are used with standard- or reduced-dose fibrinolytic therapy. Moreover, abciximab monotherapy has thrombolytic activity and facilitates primary angioplasty or stenting. Further studies are needed to define safety, efficacy, and cost effectiveness.
Research in progress (1971)

These articles summarize research projects in lighting and related subjects which are presently being investigated at research institutions in the UK and overseas. They have been prepared both to inform research workers of studies being undertaken elsewhere in their own or associated fields of interest and to give to those with a general interest in lighting an appreciation of the trends of current research.
Internal fixation with Knodt's rods. (1986)

Knodt's rods are an effective distraction internal fixator for promoting fusion for lumbar spine surgery. The chief disadvantage in 92 cases was a removal rate of about one third. The 93% fusion rate, and instant mobilization of the patient are reasonable trade-offs for the disadvantages of a second operation for removal of the rods.
Enhancement of semiconductor equipment communications using a web-enabled equipment driver (2001)

Equipment communications are essential for semiconductor manufacturing automation. Equipment managers generally function to communicate between the manufacturing execution system (MES) and equipment. Connecting a different machine to the equipment manager requires modifying the associated equipment driver (ED) accordingly, which needs some efforts. To solve this problem, this study proposes a novel, web-enabled equipment driver (WED) that uses mobile object technology. Initially, a mobile object model with a Java applet, namely WED, is developed. WED is constructed on the equipment (server) side. Then, the equipment manager (client) downloads WED via a web browser. This process does not need to modify ED. Subsequently, the equipment manager can communicate with the equipment by either the Java socket technology using the high-speed SECS message services (HSMS) standard or the object web technology through the common object request broker architecture (CORBA) or distributed component object model (DCOM) protocols using the object-based equipment model (OBEM) standard. This proposed scheme has been successfully implemented. Illustrative examples reveal that the proposed mobile object model and WED establish a novel, efficient, and versatile scheme for semiconductor equipment communications.
Analyzing the Growing Needs of Users to Employ Hardware and Software Restrictions in Smartphones for Increased Privacy and Data Security (2021)

The use of smartphones has become an inevitable part of the lives of common people, as these days almost every day to day activity requires the active use of smartphones for the real world task processing. As the demanding needs of smartphones with the bundled operating system code along with a huge variety of user applications increased, there also exists an evil part hidden within the wide variety of applications that the application developers make use of to gain profit by collecting details about users either as private personal documents or in the form of metadata. As normal users of the system, they may not be always informed or well known about the ways in which these applications work. There also exists a problem where user security is compromised in the form of malicious code. Many government organizations collect and record information about user activity through telecom operators in the name of some backdoor operations they were working without the userâ€™s consent. In this paper we try to focus on the perspectives that a common user needs to be aware of, to make their system more private and secure it from data breeches.
Improved Working Memory but No Effect on Striatal Vesicular Monoamine Transporter Type 2 after Omega-3 Polyunsaturated Fatty Acid Supplementation (2012)

Studies in rodents indicate that diets deficient in omega-3 polyunsaturated fatty acids (n-3 PUFA) lower dopamine neurotransmission as measured by striatal vesicular monoamine transporter type 2 (VMAT2) density and amphetamine-induced dopamine release. This suggests that dietary supplementation with fish oil might increase VMAT2 availability, enhance dopamine storage and release, and improve dopamine-dependent cognitive functions such as working memory. To investigate this mechanism in humans, positron emission tomography (PET) was used to measure VMAT2 availability pre- and post-supplementation of n-3 PUFA in healthy individuals. Healthy young adult subjects were scanned with PET using [(11)C]-(+)-α-dihydrotetrabenzine (DTBZ) before and after six months of n-3 PUFA supplementation (Lovaza, 2 g/day containing docosahexaenonic acid, DHA 750 mg/d and eicosapentaenoic acid, EPA 930 mg/d). In addition, subjects underwent a working memory task (n-back) and red blood cell membrane (RBC) fatty acid composition analysis pre- and post-supplementation. RBC analysis showed a significant increase in both DHA and EPA post-supplementation. In contrast, no significant change in [(11)C]DTBZ binding potential (BP(ND)) in striatum and its subdivisions were observed after supplementation with n-3 PUFA. No correlation was evident between n-3 PUFA induced change in RBC DHA or EPA levels and change in [(11)C]DTBZ BP(ND) in striatal subdivisions. However, pre-supplementation RBC DHA levels was predictive of baseline performance (i.e., adjusted hit rate, AHR on 3-back) on the n-back task (y = 0.19+0.07, r(2) = 0.55, p = 0.009). In addition, subjects AHR performance improved on 3-back post-supplementation (pre 0.65±0.27, post 0.80±0.15, p = 0.04). The correlation between n-back performance, and DHA levels are consistent with reports in which higher DHA levels is related to improved cognitive performance. However, the lack of change in [(11)C]DBTZ BP(ND) indicates that striatal VMAT2 regulation is not the mechanism of action by which n-3 PUFA improves cognitive performance.
Enzymatic Polymerization of Dicarboxylic Acid and Glycol to Polyester in Solvent-Free System (1998)

Abstract Candida antarctica lipase induced polymerization of a dicarboxylic acid and glycol in a solvent-free system, despite the heterogeneous mixture of the monomers and catalyst. The chain length of the monomers strongly affected the yield and molecular weight of the product polyester.
Direct and Convenient Conversion of Alcohols to Fluorides (2004)

[reaction: see text] Directly mixing primary, secondary, and tertiary alcohols with nC(4)F(9)SO(2)F-NR(3)(HF)(3)-NR(3) in THF or MeCN results in convenient conversion to the corresponding fluorides in high yields. The readily available reagents are easy to handle, and the mild, almost neutral reaction conditions allow for excellent functional group compatibility. A NR(3)(HF)(3)/NR(3) ratio of </=1:2 gives the highest reactivity.
Eliminating dead spaces of the laser diode stack in the fast-axis direction using a plane-parallel plate array (2007)

Dead spaces are generated in the fast-axis direction of the laser diode stack (LDS) because of the construction of the LDS. A new method of using a plane-parallel plate array to eliminate dead spaces between the bars of the LDS is presented. The design method of the plane-parallel plate is also investigated, and the beam parameter product is used to evaluate the quality of the beams. As an example, the plane-parallel plate array for an LDS consisting of four bars is designed and simulated. The simulation results show that the dead spaces are eliminated, the spots size is compressed from 6.5 mm×10 mm to 3.5 mm×10mm, and the energy loss is about 2%.