gebhart/patrepeval huggingface dataset:
Exploiting Wireless Channel State Information for Throughput Maximization (2004)

We consider the problem of scheduling packets over channels with time-varying quality. This problem has received a lot of attention lately in the context of devising methods for providing quality of service in wireless communications. Earlier work dealing with this problem considered two cases. One case is that the arrival rate vector is in the throughput region and then policies that stabilize the system are pursued. The other case is that all packet queues are saturated and then policies that optimize an objective function of the channel throughputs are investigated. In this paper, we address the case where no assumption on the arrival rates is made. We obtain a scheduling policy that maximizes the weighted sum of channel throughputs. Under the optimal policy, in the general case, the system may operate in a regime where some queues are stable, while the other become saturated. If stability for the whole system is at all possible, it is always achieved. The optimal policy is a combination of a criterion that gives priorities based on queue lengths and a strict priority rule. The scheduling mechanism switches between the two criteria based on thresholds on the queue lengths and is modulated by the availability of the channels. The analysis of the operation of the system involves the study of a vector process which in steady state has some of its components stable while others are unstable. We adopt a novel model for time-varying channel availability that dispenses with the statistical assumptions and makes a rigorous description of system dynamics possible.
Katholieken versus moderniteit (2008)

Bespreking van: H.J. van Xanten,Katholieken, wat zijt Gij toch een wonderlijk volk Nijmegen:Valkhof Pers ,2007 
M. Derks,Heilig moeten. Radicaal-katholiek en retro-modern in de jaren twintig en dertig Hilversum:Verloren ,2007 
P. Luykx,'Daer is nog poezie, nog kleur, nog warmte.' Katholieke bekeerlingen en moderniteit in Nederland, 1880-1960 Hilversum:Verloren ,2007
GarageBand 2: The Missing Manual (2004)

Whether you're a professional musician or a mere novice, Apple's GarageBand software has everything you need to produce commercial-quality recordings entirely on your own. Just imagine how many thousands of singers and instrumentalists remain undiscovered because they lack the capability to produce viable demos. Well, no more. Now there's no need to assemble a backup band or book time at a professional studio--GarageBand has it covered. And GarageBand 2: The Missing Manual gives you the know-how you need to make it all happen. It's an authoritative, witty guide to constructing digital recordings with GarageBand. Written by the master of the Missing Manual series, and a musician himself, David Pogue, this top-selling book shows you how to maximize the program's entire set of tools. Pre-recorded loops, sampled sounds, live recordings--they're all explained in easy-to-understand language. It also shows you how to apply professional-sounding effects like reverb or chorusing, and then export the finished product to iTunes, where you can download your work to an iPod, export it as an MP3, or burn it onto CDs. Now revised to reflect GarageBand's latest features, this book's second edition also addresses how to: use GarageBand's eight-track capabilities display music notation in real time enhance timing and pitch for better quality recordings change the tempo and key of recorded instruments tune guitars with GarageBand before recording So if you're chasing a dream or just having fun, GarageBand 2: The Missing Manual is the only resource you need to make the finest musical recordings possible.
Modeling in chemical engineering (2000)

Models underlying the use of similarity considerations, dimensionless numbers, and dimensional analysis in chemical engineering are discussed. Special attention is given to the many levels at which models and ceteris paribus conditions play a role and to the modeling of initial and boundary conditions. It is shown that both the laws or dimensionless number correlations and the systems to which they apply are models. More generally, no matter which model or description one picks out, what is being modeled is itself a model of something else. Instead of saying that the artifact S models the given B, it is therefore better to say that S and B jointly make up B and S. Copyright © 2000 by HYLE and Jaap van Brakel.
A level-crossing sampling scheme for A/D conversion (1996)

A sampling scheme that is based on multiple level-crossings is presented. This scheme generates samples of the input signal that are nonuniformly spaced in time by recording the time instants at which the signal crosses any of the fixed quantization levels. The nonuniform sample sequence is transformed to uniform samples by polynomial interpolation. The resolution is further increased by employing decimation. Various trade-offs involved in terms of speed, resolution and hardware complexity are discussed.
Chromosome 9p deletions in cutaneous malignant melanoma tumors: the minimal deleted region involves markers outside the p16 (CDKN2) gene. (1995)

We have analyzed 12 microsatellite markers on chromosome 9p in 54 paired cutaneous malignant melanoma (CMM) tumors and normal tissues. Forty-six percent of the tumors, including two in situ CMMs, showed loss of heterozygosity (LOH) at 9p. Only one tumor was homozygously deleted for 9p markers. The smallest deleted region was defined by five tumors and included markers D9S126 to D9S259. Loss of eight or more markers correlated significantly with worse prognosis (P < .002). Among the primary tumors, 87.5% of those with large deletions have a high risk of metastasis, as compared with only 18% of those without deletions or with loss of fewer than 8 markers (P < .001). It was not possible to demonstrate homozygous deletions of p16 in any of the CMM tumors. In four tumors, the LOH for 9p markers did not involve p16. The reported data suggest the existence of several tumor suppressor genes at 9p that are involved in the predisposition to and/or progression of CMM and exclude p16 from involvement in the early development of some melanoma tumors.
Latent Room-Temperature T$_c$ in Cuprate Superconductors (2017)

The ancient phrase, "All roads lead to Rome" applies to Chemistry and Physics. Both are highly evolved sciences, with their own history, traditions, language, and approaches to problems. Despite all these differences, these two roads generally lead to the same place. For high temperature cuprate superconductors however, the Chemistry and Physics roads do not meet or even come close to each other. In this paper, we analyze the physics and chemistry approaches to the doped electronic structure of cuprates and find the chemistry doped hole (out-of-the-CuO$\mathrm{_2}$-planes) leads to explanations of a vast array of normal state cuprate phenomenology using simple counting arguments. The chemistry picture suggests that phonons are responsible for superconductivity in cuprates. We identify the important phonon modes, and show that the observed T$\mathrm{_c} \sim 100$ K, the T$\mathrm{_c}$-dome as a function of hole doping, the change in T$\mathrm{_c}$ as a function of the number of CuO$\mathrm{_2}$ layers per unit cell, the lack of an isotope effect at optimal T$\mathrm{_c}$ doping, and the D-wave symmetry of the superconducting Cooper pair wavefunction are all explained by the chemistry picture. Finally, we show that "crowding" the dopants in cuprates leads to a pair wavefunction with S-wave symmetry and T$\mathrm{_c}\approx280-390$ K. Hence, we believe there is enormous "latent" T$\mathrm{_c}$ remaining in the cuprate class of superconductors.
Large scale purification of hog renin. Physicochemical characterization. (1977)

Renin was purified from 47 kg of hog kidney to produce enough enzyme for enzymatic and physicochemical characterization. The procedure included extraction at pH 3.5 in the presence of protease inhibitors, two ammonium sulfate precipitations, ion exchange chromatography on Sepharose-hexamethylenediamino-pepstatin gel, gel filtration, and isoelectric focusing. Renin, 2.3 mg, with a specific activity of 1,100 GU/mg of protein was obtained with about 70,000-fold purification and 16% overall recovery. The purity criteria were: (1) a single band on sodium dodecyl sulfate (SDS)-gel electrophoresis, (2) same retardation factor on polyacrylamide gel electrophoresis for renin activity, protein and glycoprotein coloration. Renin was characterized by its stability at--20 degrees C, pH 6.5; its molecular weight on SDS-gel electrophoresis, 36,800; its relative mobility on polyacrylamide gel electrophoresis at pH 7.8; its isoelectric point, 5.15; its amino acid composition, which revealed that renin is a glycoprotein; and its Michaelis constant on tetradecapeptide substrate at pH 6.6, Km = 7.7 X 10(-6) M.
The Synthesis of Certain 17α-Alkyl Corticoids (1967)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Synthesis of Certain 17α-Alkyl CorticoidsRobert E. Schaub and Martin J. WeissCite this: J. Med. Chem. 1967, 10, 5, 789–795Publication Date (Print):September 1, 1967Publication History Published online1 May 2002Published inissue 1 September 1967https://doi.org/10.1021/jm00317a007RIGHTS & PERMISSIONSArticle Views61Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (899 KB) Get e-Alertsclose Get e-Alerts
Instagram Use, Loneliness, and Social Comparison Orientation: Interact and Browse on Social Media, But Don't Compare (2016)

Ever since the emergence of social networking sites (SNSs), it has remained a question without a conclusive answer whether SNSs make people more or less lonely. To achieve a better understanding, researchers need to move beyond studying overall SNS usage. In addition, it is necessary to attend to personal attributes as potential moderators. Given that SNSs provide rich opportunities for social comparison, one highly relevant personality trait would be social comparison orientation (SCO), and yet this personal attribute has been understudied in social media research. Drawing on literature of psychosocial implications of social media use and SCO, this study explored associations between loneliness and various Instagram activities and the role of SCO in this context. A total of 208 undergraduate students attending a U.S. mid-southern university completed a self-report survey (M<sub>age</sub> = 19.43, SD = 1.35; 78 percent female; 57 percent White). Findings showed that Instagram interaction and Instagram browsing were both related to lower loneliness, whereas Instagram broadcasting was associated with higher loneliness. SCO moderated the relationship between Instagram use and loneliness such that Instagram interaction was related to lower loneliness only for low SCO users. The results revealed implications for healthy SNS use and the importance of including personality traits and specific SNS use patterns to disentangle the role of SNS use in psychological well-being.
Advances in multimodality molecular imaging (2009)

Multimodality molecular imaging using high resolution positron emission tomography (PET) combined with other modalities is now playing a pivotal role in basic and clinical research. The introduction of combined PET/CT systems in clinical setting has revolutionized the practice of diagnostic imaging. The complementarity between the intrinsically aligned anatomic (CT) and functional or metabolic (PET) information provided in a "one-stop shop" and the possibility to use CT images for attenuation correction of the PET data has been the driving force behind the success of this technology. On the other hand, combining PET with Magnetic Resonance Imaging (MRI) in a single gantry is technically more challenging owing to the strong magnetic fields. Nevertheless, significant progress has been made resulting in the design of few preclinical PET systems and one human prototype dedicated for simultaneous PET/MR brain imaging. This paper discusses recent advances in PET instrumentation and the advantages and challenges of multimodality imaging systems. Future opportunities and the challenges facing the adoption of multimodality imaging instrumentation will also be addressed.
Deep motion features for visual tracking (2016)

Robust visual tracking is a challenging computer vision problem, with many real-world applications. Most existing approaches employ hand-crafted appearance features, such as HOG or Color Names. Recently, deep RGB features extracted from convolutional neural networks have been successfully applied for tracking. Despite their success, these features only capture appearance information. On the other hand, motion cues provide discriminative and complementary information that can improve tracking performance. Contrary to visual tracking, deep motion features have been successfully applied for action recognition and video classification tasks. Typically, the motion features are learned by training a CNN on optical flow images extracted from large amounts of labeled videos. This paper presents an investigation of the impact of deep motion features in a tracking-by-detection framework. We further show that hand-crafted, deep RGB, and deep motion features contain complementary information. To the best of our knowledge, we are the first to propose fusing appearance information with deep motion features for visual tracking. Comprehensive experiments clearly suggest that our fusion approach with deep motion features outperforms standard methods relying on appearance information alone.
Efficient Synthesis of Sterically Hindered Chiral Binaphthol Derivatives (1988)

Abstract A highly effective method for preparation of a variety of sterically hindered chiral binaphthol derivatives has been described which involves the intramolecular 1,3-rearrangement of bis(trialkylsilyl ether) of chiral 3,3′-dibromo-1,1′-bi-2-naphthol with t-BuLi.
Rotary Steerable Drilling System for the 6-in Hole (2003)

Abstract The availability of a reliable 3D rotary steerable system in 6-in. hole size opens up considerable opportunities to develop reserves where 3D steering is required, but the risks, difficulties, and delays involve in using bent housing mud motors are excessive. On 10 April 2002, parallel field trials of a 3D, 6-in. rotary steerable system (RSS) started in Oman and the North Sea. The field trials program finished in June with more than 16,000 ft drilled and more than 400 circulating hours experience accumulated in a range of formations without failure. During these trials, the tool displayed steerability and dogleg performance suited to landing and geosteering a well in the reservoir section. The paper outlines the principles of operation and performance capabilities of the system including the technical challenges encountered while developing a rotary steering system of this size. Field trial results from the test program are presented for a range of drilling conditions, formations, bit types, and bottom-hole assembly designs.
Critical review of the responsive neurostimulator system for epilepsy (2015)

Patients with medically refractory epilepsy have historically had few effective treatment options. Electrical brain stimulation for seizures has been studied for decades and ongoing technological refinements have made possible the development of an implantable electrical brain stimulator. The NeuroPace responsive neurostimulator was recently approved by the FDA for clinical use and the initial reports are encouraging. This device continually monitors brain activity and delivers an electric stimulus when abnormal activity is detected. Early reports of efficacy suggest that the device is well tolerated and offers a reduction in seizure frequency by approximately half at 2 years.
Chalcone Synthase mRNA and Activity Are Reduced in Yellow Soybean Seed Coats with Dominant I Alleles (1994)

The seed of all wild Glycine accessions have black or brown pigments because of the homozygous recessive i allele in combination with alleles at the R and T loci. In contrast, nearly all commercial soybean (Glycine max) varieties are yellow due to the presence of a dominant allele of the I locus (either I or i) that inhibits pigmentation in the seed coats. Spontaneous mutations to the recessive i allele occur in these varieties and result in pigmented seed coats. We have isolated a clone for a soybean dihydroflavonol reductase (DFR) gene using polymerase chain reaction. We examined expression of DFR and two other genes of the flavonoid pathway during soybean seed coat development in a series of near-isogenic isolines that vary in pigmentation as specified by combinations of alleles of the I, R, and T loci. The expression of phenylalanine ammonia-lyase and DFR mRNAs was similar in all of the gene combinations at each stage of seed coat development. In contrast, chalcone synthase (CHS) mRNA was barely detectable at all stages of development in seed coats that carry the dominant I allele that results in yellow seed coats. CHS activity in yellow seed coats (I) was also 7- to 10-fold less than in the pigmented seed coats that have the homozygous recessive i allele. It appears that the dominant I allele results in reduction of CHS mRNA, leading to reduction of CHS activity as the basis for inhibition of anthocyanin and proanthocyanin synthesis in soybean seed coats. A further connection between CHS and the I locus is indicated by the occurrence of multiple restriction site polymorphisms in genomic DNA blots of the CHS gene family in near-isogenic lines containing alleles of the I locus.
Stimulation of craniofacial muscle afferents induces prolonged facilitatory effects in trigeminal nociceptive brain-stem neurones (1992)

Stimulation of small-diameter afferents supplying deep tissues has been shown to increase the excitability of spinal cord neurones responding to cutaneous afferent inputs. This facilitation has been implicated as integral central mechanisms of deep pain that may contribute to the tenderness and spread and/or referral of pain following injury of deep tissues. In view of the recent documentation of deep craniofacial afferent inputs, as well as cutaneous afferent inputs to the trigeminal (V) spinal tract nucleus, we wished to determine the effects of deep inputs excited by the small-fibre irritant mustard oil on trigeminal nociceptive neurones. The extracellular activity of single brain-stem neurones was recorded in subnuclei caudalis and oralis of the V spinal tract nucleus of anaesthetized rats. The neurones were classified as low-threshold mechanosensitive (LTM), wide dynamic range (WDR) and nociceptive specific (NS) on the basis of their cutaneous mechanoreceptive field properties and their responses evoked by electrical stimulation of their cutaneous afferent inputs. Injection of 5% mustard oil (2-5 microliters) into the deep masseter muscle produced a facilitatory effect in 12 of 27 nociceptive neurones tested in caudalis and in 5 of 12 nociceptive neurones in oralis. This effect was reflected in an expansion of the cutaneous mechanoreceptive field, an increase in spontaneous activity or an increase in responsivity to electrical stimulation of cutaneous afferent inputs to the neurones. The facilitation was reversible and typically became apparent within 3-5 min of the injection, reached its peak at 5-10 min, and lasted for 20-30 min.(ABSTRACT TRUNCATED AT 250 WORDS)
Residential end-use load shape data analysis (1989)

Reliable data on end-use load shapes are important for forecasting electricity demand in least-cost utility planning. This report analyzes available residential end-use metered data collected by California utilities to use with an electricity peak demand forecasting model developed by the California Energy Commission. Representative daily load shapes for four seasons are developed for seven residential non-space-conditioning end uses. Hourly energy use for space conditioning end uses (central air conditioning and room air conditioning) is modeled with matrices that express energy use as a function of time of day, temperature and humidity. Exploratory work to represent these matrices with analytic functions is also presented. 17 refs., 25 figs., 20 tabs.
A 12-GS/s 81-mW 5-bit time-interleaved flash ADC with background timing skew calibration (2010)

A 12-GS/s 5-bit time-interleaved flash ADC is realized in 65-nm CMOS. The design utilizes a background timing skew calibration technique to improve dynamic performance, and comparator offset calibration to reduce power dissipation. The experimental prototype achieves an SNDR of 25.1 dB at Nyquist and 27.5 dB for low frequency inputs. The circuit occupies an active area of 0.44 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> and consumes 81 mW from a 1.1-V supply.
Dioxa‐dihydrocöranthryl, ein eingeebnetes Triphenylmethylradikal (1958)

Abstract Das durch zwei Ätherbrücken in ebener Anordnung stabilisierte Triphenylmethyl ist in Lösung und im kristallisierten Zustand praktisch vollständig dissoziiert.
The Role of Academic Libraries in the Accreditation of Undergraduate Programmes: A Case Study of Federal University of Technology Minna, Niger State (2017)

This study sets to find out the role of academic libraries in the accreditation of undergraduate programme. The study is anchored by five objectives and is limited to Federal University of Technology, Minna with academic librarians as target respondent. The study adopted census design method as means of gathering data with a target population of 97 staff of the library and a total enumeration was used for the research. The questionnaire was used as instrument of data collection. One hypothesis was tested at 0.05 level of significant and data was presented in frequency, Tables and percentages. The hypotheses were analyzed using T-test method. The finding reveals that libraries are actively involved in all accreditation process since it makes available and accessible information resources that are necessary and critical for accreditation. It was concluded that a number of constraints such as inadequate funding and erratic power supply affect library role in accreditation. The study recommended sufficient financial support should be given to academic libraries to enable them function effective, alternative power supply should be worked on for library to have a stable power supply, enough skilled personnel with background knowledge in librarianship should be put in charge of the library and academic libraries should also invest in acquisition of electronic resources, as the world is going digital.