gebhart/patrepeval huggingface dataset:
ACT: An Autonomous Drone Cinematography System for Action Scenes (2018)

Drones are enabling new forms of cinematography. Aerial filming via drones in action scenes is difficult because it requires users to understand the dynamic scenarios and operate the drone and camera simultaneously. Existing systems allow the user to manually specify the shots and guide the drone to capture footage, while none of them employ aesthetic objectives to automate aerial filming in action scenes. Meanwhile, these drone cinematography systems depend on the external motion capture systems to perceive the human action, which is limited to the indoor environment. In this paper, we propose an Autonomous CinemaTography system “ACT” on the drone platform to address the above the challenges. To our knowledge, this is the first drone camera system which can autonomously capture cinematic shots of action scenes based on limb movements in both indoor and outdoor environments. Our system includes the following novelties. First, we propose an efficient method to extract 3D skeleton points via a stereo camera. Second, we design a real-time dynamical camera planning strategy that fulfills the aesthetic objectives for filming and respects the physical limits of a drone. At the system level, we integrate cameras and GPUs into the limited space of a drone and demonstrate the feasibility of running the entire cinematography system onboard in real-time. Experimental results in both simulation and real-world scenarios demonstrate that our cinematography system “ACT” can capture more expressive video footage of human action than that of a state-of-the-art drone camera system.
High-density low on-resistance trench MOSFETs employing oxide spacers and self-align technique for DC/DC converter (2002)

A new process technique for fabricating very high-density trench MOSFETs using 4 mask layers with oxide spacers and self-align technique is realized. This technique reduces the process steps, trench width, and source and p-body region with a resulting increase in cell density and current driving capability, and decrease in on-resistance as well as cost-effective production capability. Specific on-resistance of 0.41 m/spl Omega/.cm/sup 2/ with a blocking voltage of 43 is obtained.
High resolution single strand conformation polymorphism analysis using formamide and ethidium bromide staining. (1997)

Single strand conformation polymorphism (SSCP) analysis using ethidium bromide can be improved by adding formamide as the denaturant. This gives higher resolution than previous SSCP methods; it had 100% sensitivity in the discrimination of 14 PCR samples from two different genes, even for a long fragment close to the upper limit of 250 base pairs. This modified procedure is a rapid, simple, safe, and yet highly sensitive method for detecting structural differences in DNA fragments.
Conformational Analysis of Ketolide, Conformations of RU 004 in Solution and Bound to Bacterial Ribosomes (1998)

A new structurally distinct class of 14-membered-ring macrolides is characterized by a keto-function instead of the cladinose sugar, well-known for its fragility even in weakly acidic media. This new class called ketolides is endowed with remarkable antibacterial activity against macrolide-resistant strains. A complete assignment of the 1H and 13C NMR spectra of RU 004 in deuteriochloroform, methanol-d4 and D2O has been made using different two-dimensional (2D) chemical-shift correlation methods. The study of ketolide-ribosome interaction has been investigated using 2D transferred nuclear Overhauser effect spectroscopy (TRNOESY). A comparison of the conformations in solution and bound to ribosomes was made with those of previous macrolides. This study can highlight some of the significant differences between RU 004 and other antibiotics.
Chemically Controlled Epigenome Editing through an Inducible dCas9 System (2017)

Although histone modifications are associated with gene activities, studies of their causal relationships have been difficult. For this purpose, we developed an inducible system integrating dCas9-based targeting and chemically induced proximity technologies to allow small molecule induced recruitment of P300 acetyltransferase and the acetylation of H3K27 at precise gene loci in cells. Employing the new technique, we elucidated the temporal order of histone acetylation and gene activation, as well as the stability of the installed histone modification.
Preparation of olefins by pyrolysis of O-alkyldimethythiocarbamates (1969)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation of olefins by pyrolysis of O-alkyldimethythiocarbamatesMelvin S. Newman and Fredrick W. HetzelCite this: J. Org. Chem. 1969, 34, 11, 3604–3606Publication Date (Print):November 1, 1969Publication History Published online1 May 2002Published inissue 1 November 1969https://pubs.acs.org/doi/10.1021/jo01263a083https://doi.org/10.1021/jo01263a083research-articleACS PublicationsRequest reuse permissionsArticle Views206Altmetric-Citations29LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Shielded gradient coils and radio frequency probes for high‐resolution imaging of rat brains (1992)

A shielded gradient system and radio frequency probes for a 4.7-T/30-cm horizontal bore magnet are described. The systems were designed principally to obtain images and localized spectra from rat brains. The gradients can operate in either a shielded or non-shielded mode. The rf probe, which combines both highest sensitivity and highest resolution, consists of a large modified saddle type transmitter and a small surface reception coil, actively decoupled using diodes. The system performance is demonstrated on phantoms and on a rat brain, where an image with in plane resolution of 80 microns and a slice thickness of 150 microns is obtained.
Recent advances in acute myeloid leukemia stem cell biology (2012)

The existence of cancer stem cells has long been postulated, but was proven less than 20 years ago following the demonstration that only a small sub-fraction of leukemic cells from acute myeloid leukemia patients were able to propagate the disease in xenografts. These cells were termed leukemic stem cells since they exist at the apex of a loose hierarchy, possess extensive self-renewal and the ability to undergo limited differentiation into leukemic blasts. Acute myeloid leukemia is a heterogeneous condition at both the phenotypic and molecular level with a variety of distinct genetic alterations giving rise to the disease. Recent studies have highlighted that this heterogeneity extends to the leukemic stem cell, with this dynamic compartment evolving to overcome various selection pressures imposed upon it during disease progression. The result is a complex situation in which multiple pools of leukemic stem cells may exist within individual patients which differ both phenotypically and molecularly. Since leukemic stem cells are thought to be resistant to current chemotherapeutic regimens and mediate disease relapse, their study also has potentially profound clinical implications. Numerous studies have generated important recent advances in the field, including the identification of novel leukemic stem cell-specific cell surface antigens and gene expression signatures. These tools will no doubt prove invaluable for the rational design of targeted therapies in the future.
Physical Map of the Region Surrounding the Ataxia-Telangiectasia Gene on Human Chromosome 11q22-23 (1999)

Ataxia telangiectasia (A-T) is an autosomal recessive disease affecting multiple systems, including the development of the cerebellum and thymus. This results in a progressive cerebellar ataxia with onset between 1-3 years, telangiectasia occurs within the subsequent 3-5 years. We localized the A-T gene by linkage analysis to chromosome 11q22-23, between the markers D11S384, and D11S535, and constructed a series of contigs using three BACs and twelve cosmids, spanning a region of approximately 400 kb. We developed a set of sequence-tagged site (STS) markers from the ends of the BACs and cosmids. The A-T gene was isolated from within this region. It is now possible to precisely orient specific BACs, cosmids, and STSs with respect to the exons of the A-T gene (ATM). We anticipate that this information will be useful for further studies of functional domains and regulatory elements within the ATM gene, as well as for other genes in this region. In addition, these clones can be used for FISH studies of deletions, translocations and for loss of heterozygosity in various tumors.
Substance P and Neurotensin: Their Roles in the Regulation of Anterior Pituitary Function (1986)

Mitochondrial fatty acid β-oxidation (FAO) is the major pathway for the degradation of fatty acids and is essential for maintaining energy homeostasis in the human body. Fatty acids are a crucial energy source in the postabsorptive and fasted states when ...Read More
Navigating a protection-engineering database [for power systems] (1989)

The authors describe the features of a relational database and an associated full-screen database editor (DBE), which are major components of the computer-aided protection engineering (CAPE) system. CAPE is being developed under the sponsorship of the major US electric utilities and has been designed primarily as a productivity tool for protection engineers. CAPE combines a set of nine interactive programs for managing data, analyzing faults, and checking, setting, coordinating, and simulating protective relays. CAPE uses high-resolution computer graphics extensively and is implemented on an engineering workstation.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
An Ambient Temperature Secondary Aluminum Electrode: Its Cycling Rates and Its Cycling Efficiencies (1985)

Electrochemically active aluminum can be cathodically deposited and anodically stripped from acidic mixtures of 1‐methyl‐3‐ethylimidazolium chloride and aluminum chloride at room temperature. The rates of deposition can be high (25 mA/cm2), and the deposited aluminum can be quantitatively cycled in large amounts (>25 C/cm2) at high efficiency (>99%).
Montelukast attenuates the airway response to hypertonic saline in moderate-to-severe COPD (2003)

This study assessed the effect of the leukotriene receptor antagonist montelukast on hypertonic saline-induced airway obstruction. A total of 29 patients with chronic obstructive pulmonary disease (forced expiratory volume in one second (FEV1), 42+/-4% predicted) received either 10 mg montelukast and 3 h later placebo via metered-dose inhaler (MDI) (M), or placebo and 3 h later 200 microg salbutamol (S), or two doses of placebo (P), in a randomised order. Patients inhaled salbutamol 1 h after MDI and the challenge was performed 15 min later (3% saline, 5 min). Data are given as per cent changes versus baseline. Compared to P, S caused significant bronchodilation in FEV1 (7.3%) and forced inspiratory volume in one second (FIV1) (4.5%), and M in FIV1 (1.5%). The saline-induced fall in FEV1 was lower after M (-5.8%), compared with S (-10.3%) and P (-13.1%). FEV1 (11.3%) and FIV1 (7.6%) was improved over baseline after recovery by M but not P and S. Recovery times regarding FEV1 (8.5 min) and FIV1 (15.2 min) were shortest after M, respective values for S being 16.8 and 20.4 min, and for P 15.9 and 21.2 min. Effects were strongest in patients with low baseline FEV1 and/or inhaled corticosteroids. Data from this study indicate beneficial effects of montelukast on hypertonic saline-induced airway responses in patients with chronic obstructive pulmonary disease, particularly those with severe disease. The major effect was an accelerated recovery leading to values above baseline.
Historical and current progress in understanding the origin and structure of humic substances (2010)

Research into humic substances (HS) has focused selectively on the search for aromatic structures. All aromatic compounds are regarded as eligible HS constituents, whereas aliphatic, polysaccharide structural constituents are considered non-HS. Wet chemical methods for analysing HS produce 2–5% aromatic compounds from the original starting material. Only those compounds in the hydrophobic extraction phases are studied carefully. Compounds in the hydrophilic extraction phases, containing mainly aliphatics, are discarded. Solid-state NMR spectra from HS show 30–40% of carbon–carbon unsaturation, which is selectively interpreted as ‘aromatic’. No recognition is given to the fact that NMR spectroscopy of HS cannot distinguish olefinic unsaturation from aromatic unsaturation in molecules. By considering this unsaturation to be more or less olefinic, solid-state NMR shows the structure of HS to be mainly aliphatic. Polysaccharides are recycled in humification via microbial metabolism. Lignin is not formed again in humification. During evolution, polysaccharides appeared first and lignin much later, and it is reasonable to suppose that the existing humification process accommodated lignin as an additional material to consume. Humification has evolved to become a key process in the production of fertile soils, and dearomatisation may be an important component of this role.
Stable vision-aided navigation for large-area augmented reality (2011)

In this paper, we present a unified approach for a drift-free and jitter-reduced vision-aided navigation system. This approach is based on an error-state Kalman filter algorithm using both relative (local) measurements obtained from image based motion estimation through visual odometry, and global measurements as a result of landmark matching through a pre-built visual landmark database. To improve the accuracy in pose estimation for augmented reality applications, we capture the 3D local reconstruction uncertainty of each landmark point as a covariance matrix and implicity rely more on closer points in the filter. We conduct a number of experiments aimed at evaluating different aspects of our Kalman filter framework, and show our approach can provide highly-accurate and stable pose both indoors and outdoors over large areas. The results demonstrate both the long term stability and the overall accuracy of our algorithm as intended to provide a solution to the camera tracking problem in augmented reality applications.
Evidence and characterization of the receptor to eye-derived growth factor I, the retinal form of basic fibroblast growth factor, on bovine epithelial lens cells. (1986)

Eye-derived growth factor I (EDGF-I), the retinal form of the basic fibroblast growth factor, has been purified to homogeneity from bovine retina by heparin-Sepharose chromatography. The radioiodinated EDGF-I retained full mitogenic activity and was used to study the interaction of the growth factor with bovine epithelial lens cells. We showed that 125I-labeled EDGF-I bound in a saturable and reversible manner to a specific cellular receptor. Scatchard analysis of the equilibrium binding gave a Kd of 53 X 10(-12) M with approximately equal to 20,000 binding sites per cell. Crosslinking experiments using two homobifunctional reagents induced the formation of a specific major complex with a Mr of approximately equal to 145,000, as determined by NaDodSO4/PAGE, and independent of reducing conditions. These data establish the existence of a receptor for the basic growth factor derived from neural tissues and give an estimation of the size of this receptor at Mr 130,000.
Chemical Attractants for the Adult House Fly1 (1961)

Journal Article Chemical Attractants for the Adult House Fly Get access A. W. A. Brown, A. W. A. Brown Search for other works by this author on: Oxford Academic PubMed Google Scholar A. S. West, A. S. West Search for other works by this author on: Oxford Academic PubMed Google Scholar A. S. Lockley A. S. Lockley 4 4 Formerly Research Associate, Department of Bacteriology, Queen's University; present address: Department of Zoology, Loug Beach State College, Long Beach, California. Search for other works by this author on: Oxford Academic PubMed Google Scholar Journal of Economic Entomology, Volume 54, Issue 4, 1 August 1961, Pages 670–674, https://doi.org/10.1093/jee/54.4.670 Published: 01 August 1961 Article history Accepted: 01 February 1961 Published: 01 August 1961
Microfluidic application-specific integrated device for monitoring direct cell-cell communication via gap junctions between individual cell pairs (2005)

Direct cell-cell communication between adjacent cells is vital for the development and regulation of functional tissues. However, current biological techniques are difficult to scale up for high-throughput screening of cell-cell communication in an array format. In order to provide an effective biophysical tool for the analysis of molecular mechanisms of gap junctions that underlie intercellular communication, we have developed a microfluidic device for selective trapping of cell-pairs and simultaneous optical characterizations. Two different cell populations can be brought into membrane contact using an array of trapping channels with a 2μm by 2μm cross section. Device operation was verified by observation of dye transfer between mouse fibroblasts (NIH3T3) placed in membrane contact. Integration with lab-on-a-chip technologies offers promising applications for cell-based analytical tools such as drug screening, clinical diagnostics, and soft-state biophysical devices for the study of gap junction protein channels in cellular communications. Understanding electrical transport mechanisms via gap junctions in soft membranes will impact quantitative biomedical sciences as well as clinical applications.
Optical metamaterials: Linear and nonlinear characterization and application to optical limiting (2010)

Recent developments in metamaterials, or nanostructured materials with engineered optical properties, enable the creation of previously impossible devices. Optical cloaks, superlenses, optical black holes, and more are now theoretically possible, but robust methods to characterize the linear and nonlinear optical properties of these materials are critical to the evaluation and development of devices. First, this work is concerned with the linear optical characterization of general sub-wavelength periodic metal-dielectric nanostructures - optical metamagnetics - capable of producing magnetic responses in the visible. Then, nonlinear characterization of a nanoantenna type metamaterial is examined in the context of the optimal design of a thin-film optical limiting device. Optical limiting, or the ability to maintain high low intensity transmission and yet significantly attenuate or ‘limit’ high intensity throughput, has a wide variety of applications, most significantly for sensor protection or protective eyeware. In this work, the high local fields present in plasmonically resonant metamaterials are used to enhance the nonlinear response of a dye, resulting in a higher nonlinear absorption relative to the incident intensity, and a significant increase in the ‘effective’ nonlinear absorption coefficient. This work provides a foundation of linear and nonlinear characterization tools applicable to all metamaterials, but which is focused on optical limiting optimization.
A CGA based Source Address Authorization and Authentication (CSA) Mechanism for First IPv6 Layer-3 Hop (2008)

This document describes a method to authorize and authenticate the
address of a node in an IPv6 network. Except for Host Change, this
method satisfies all the requirements in the Charter of SAVI. The
modification on a host can be regarded as the extension of SEND and
IPSec.
BCL6 programs lymphoma cells for survival and differentiation through distinct biochemical mechanisms (2007)

The BCL6 transcriptional repressor is the most commonly involved oncogene in diffuse large B-cell lymphomas (DLBCLs). Constitutive expression of BCL6 mediates lymphomagenesis through aberrant proliferation, survival, and differentiation blockade. Binding of BCL6 to the SMRT/N-CoR corepressors mediates the BCL6 survival effect in DLBCL. Although the basis for differentiation blockade is unknown in DLBCL, recent data suggest that BCL6 binding to the MTA3 corepressor might be involved. We report that BCL6 and MTA3 are coexpressed in normal germinal center B cells and DLBCL. Depletion of MTA3 in DLBCL cells induced a differentiation-related BCL6 target gene (PRDM1), but not target genes involved in survival. Accordingly, MTA3 and PRDM1 expression are mutually exclusive in germinal center B cells. We performed chromatin immunoprecipitation (ChIP)-on-chip mapping of the PRDM1 locus, identifying a novel BCL6 binding site on intron 3 of the PRDM1 gene, and show that BCL6 recruits MTA3 to this site. In DLBCL cells, MTA3 depletion induced plasmacytic differentiation but did not decrease viability of DLBCL cells. However, MTA3 depletion synergized with a specific BCL6 inhibitor that blocks SMRT/N-CoR binding to decrease DLBCL viability. Taken together, these results show that BCL6 regulates distinct transcriptional programs through the SMRT/N-CoR and MTA3 corepressors, respectively, and provides a basis for combinatorial therapeutic targeting of BCL6.
Femtosecond Relaxation of Photoexcitations in a Poly(<i>Para</i>-Phenylene)-Type Ladder Polymer (1996)

Time-resolved femtosecond pump and probe experiments were conducted on films of poly(para-phenylene)-type ladder homopolymers featuring a high degree of intrachain order. We find stimulated emission in the region of the interband luminescence which is of the same magnitude as the photoinduced absorption. The latter is located energetically below the interband luminescence and therefore does not compete with the stimulated emission. We conjecture this to be an intrinsic property of conjugated polymers of high intrachain order and a narrow distribution of long conjugation lengths. From the decay dynamics we conclude that stimulated emission and photoinduced absorption originate from different species.
Integrated electrical power monitoring systems (2003)

The authors describe a system (called Epic Microversatrip) that integrates metering, protection (direct acting breaker trips or relaying), monitoring, and fault analysis in electrical switchgear. With this system not only can individual conventional meters, instruments, discrete transducers, and protective relays be replaced, but added functions can be provided. The total system then provides an economical alternative for determining the pulse of the electrical power distribution system.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A 3-level asynchronous protocol for a differential two-wire communication link (1994)

A differential two-wire communication link with a 3-level asynchronous protocol is introduced. The proposed 3-level code contains information of both data and clock. Since only one edge is needed for each bit, the bandwidth of a link is efficiently utilized. The power consumption is reduced by the low-swing differential two-wire link and is further reduced by a 3-level code. The speed of the protocol is expected to reach 1 Gb/s in a 1.2-/spl mu/m CMOS process.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>