gebhart/patrepeval huggingface dataset:
The digital revolution in mudlogging: An innovative workflow for advanced analysis and classification of drill cuttings using computer vision and machine-learning (2022)

PreviousNext No AccessSecond International Meeting for Applied Geoscience & EnergyThe digital revolution in mudlogging: An innovative workflow for advanced analysis and classification of drill cuttings using computer vision and machine-learningAuthors: Simone Di SantoTetsushi YamadaKarim BondabouMahdi AmmarSimone Di SantoSchlumberger, Tetsushi YamadaSchlumberger, Karim BondabouSchlumberger, and Mahdi AmmarSchlumbergerhttps://doi.org/10.1190/image2022-3750340.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractRock lithology identification and quantification is today a fundamental task of reservoir characterization, it is performed in real-time using drilled cuttings to have a very first insight of drilled formation, to take real-time decision and hence to build up a geological model of the reservoir. Cutting analysis have not evolved for the past 50 years and is still a tedious and fully human dependent process. Our solution, using digital image and smart processing will automate cuttings lithology interpretation and extract automatically digital rock features as measurement to enable remote operation, reduce skills required to execute the tasks and hence improved data quality and consistency to unlock new answer products…Keywords: mud logging, visual science, machine learning, object-based image analysis, cuttingsPermalink: https://doi.org/10.1190/image2022-3750340.1FiguresReferencesRelatedDetails Second International Meeting for Applied Geoscience & EnergyISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2022 Pages: 3694 publication data© 2022 Published in electronic format with permission by the Society of Exploration Geophysicists and the American Association of Petroleum GeologistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 15 Aug 2022 CITATION INFORMATION Simone Di Santo, Tetsushi Yamada, Karim Bondabou, and Mahdi Ammar, (2022), "The digital revolution in mudlogging: An innovative workflow for advanced analysis and classification of drill cuttings using computer vision and machine-learning," SEG Technical Program Expanded Abstracts : 1875-1879. https://doi.org/10.1190/image2022-3750340.1 Plain-Language Summary Keywordsmud loggingvisual sciencemachine learningobject-based image analysiscuttingsPDF DownloadLoading ...
Inversion duplication deletions involving the long arm of chromosome 13: Phenotypic description of additional three fetuses and genotype–phenotype correlation (2014)

Inversion duplication and terminal deletion of the long arm of chromosome 13 (inv dup del 13q) is a rare chromosomal rearrangement: only five patients have been reported, mostly involving a ring chromosome 13. We report on additional three fetuses with pure inv dup del 13q: Patient 1 had macrosomia, enlarged kidneys, hypersegmented lungs, unilateral moderate ventriculomegaly, and a mild form of hand and feet preaxial polydactyly; Patient 2 had intrauterine growth retardation, widely spaced eyes, left microphthalmia, right anophthalmia, short nose, bilateral absent thumbs, cutaneous syndactyly of toes 4 and 5, bifid third metacarpal, a small left kidney, hyposegmented lungs, and partial agenesis of the corpus callosum; Patient 3 had widely spaced eyes, long and smooth philtrum, low-set ears, median notch in the upper alveolar ridge, bifid tongue, cutaneous syndactyly of toes 2 and 3, enlarged kidneys and pancreas, arhinencephaly, and partial agenesis of the corpus callosum. We compared the phenotypes of these patients to those previously reported for ring chromosome 13, pure 13q deletions and duplications. We narrowed some critical regions previously reported for lung, kidney and fetal growth, and for thumb, cerebral, and eye anomalies.
A Random Graph Approach to NMR Sequential Assignment (2005)

Nuclear magnetic resonance (NMR) spectroscopy allows scientists to study protein structure, dynamics and interactions in solution. A necessary first step for such applications is determining the resonance assignment, mapping spectral data to atoms and residues in the primary sequence. Automated resonance assignment algorithms rely on information regarding connectivity (e.g., through-bond atomic interactions) and amino acid type, typically using the former to determine strings of connected residues and the latter to map those strings to positions in the primary sequence. Significant ambiguity exists in both connectivity and amino acid type information. This paper focuses on the information content available in connectivity alone and develops a novel random-graph theoretic framework and algorithm for connectivity-driven NMR sequential assignment. Our random graph model captures the structure of chemical shift degeneracy, a key source of connectivity ambiguity. We then give a simple and natural randomized algorithm for finding optimal assignments as sets of connected fragments in NMR graphs. The algorithm naturally and efficiently reuses substrings while exploring connectivity choices; it overcomes local ambiguity by enforcing global consistency of all choices. By analyzing our algorithm under our random graph model, we show that it can provably tolerate relatively large ambiguity while still giving expected optimal performance in polynomial time. We present results from practical applications of the algorithm to experimental datasets from a variety of proteins and experimental set-ups. We demonstrate that our approach is able to overcome significant noise and local ambiguity in identifying significant fragments of sequential assignments.
Efficient and robust data integrity verification scheme for high-performance storage devices (2021)

Most of the data generated on high-performance computing systems are transferred to storage in remote systems for various purposes such as backup. To detect data corruption caused by network or storage failures during data transfer, the receiver system verifies data integrity by comparing the checksum of the data. However, the internal operation of the storage device is not sufficiently investigated in the existing end-to-end integrity verification techniques. In this paper, we propose an efficient and robust data integrity verification scheme for large-scale data transfer between computing systems with high-performance storage devices. To ensure the robustness of the integrity verification, we control the order of I/O operations. In addition, we parallelize checksum computing and overlap it with I/O operations to make the integrity verification efficient.
Post‐Polymerization of Preorganized Assemblies for Creating Shape‐Controlled Functional Materials (2007)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Highly Regio- and Stereoselective Synthesis of (Z)-Trisubstituted Alkenes via Propyne Bromoboration and Tandem Pd-Catalyzed Cross-Coupling (2009)

Contrary to all previous reports, bromoboration of propyne with BBr(3) proceeds in >or=98% syn-selectivity to produce (Z)-2-bromo-1-propenyldibromoborane (1). Although 1 is readily prone to stereoisomerization, it can be converted to the pinacolboronate (2) of >or=98% isomeric purity by treatment with pinacol, which may then be subjected to Negishi coupling to give trisubstituted (Z)-alkenylpinacolboronates (3) containing various R groups in 73-90% yields. Iodinolysis of 3 affords alkenyl iodides (4) in 80-90% yields. All alkenes isolated and identified are >or=98% Z.
On the security of a digital signature with message recovery using self-certified public key (2005)

Self-certified public keys are proposed to eliminate the burden of verifying the public key before using. To alleviate reliance on system authority and strengthen the security of system, Chang et al. propose a new digital signature schemes, no redundancy is needed to be embedded in the signed messages in this scheme. Moreover, Chang et al claimed that the schemes are still secure even without the trustworthy system authority, and only the specified recipient can recover the message in his authentication encryption schemes. Unfortunately, In this work, we analyze the security of Chang et al. scheme and show that if the system authority is trustless, the scheme is insecure, namely, the system authority can recover the message without the private key of the recipient in Chang' authentication encryption schemes. Finally, we propose an improve scheme to overcome the weakness of Chang et al scheme.
Identifying tracé alternant activity in neonatal EEG using an inter-burst detection approach (2020)

Electroencephalography (EEG) is an important clinical tool for reviewing sleep-wake cycling in neonates in intensive care. Tracé alternant (TA)-a characteristic pattern of EEG activity during quiet sleep in term neonates-is defined by alternating periods of short-duration, high-voltage activity (bursts) separated by lower-voltage activity (inter-bursts). This study presents a novel approach for detecting TA activity by first detecting the inter-bursts and then processing the temporal map of the bursts and inter-bursts. EEG recordings from 72 healthy term neonates were used to develop and evaluate performance of 1) an inter-burst detection method which is then used for 2) detection of TA activity. First, multiple amplitude and spectral features were combined using a support vector machine (SVM) to classify bursts from inter-bursts within TA activity, resulting in a median area under the operating characteristic curve (AUC) of 0.95 (95% confidence interval, CI: 0.93 to 0.98). Second, post-processing of the continuous SVM output, the confidence score, was used to produce a TA envelope. This envelope was used to detect TA activity within the continuous EEG with a median AUC of 0.84 (95% CI: 0.80 to 0.88). These results validate how an inter-burst detection approach combined with post processing can be used to classify TA activity. Detecting the presence or absence of TA will help quantify disruption of the clinically important sleep-wake cycle.
Longitudinal changes in maternal soluble endoglin and angiopoietin‐2 in women at risk for pre‐eclampsia (2014)

Maternal plasma sEng, but not Ang-2, may be a useful mid- and late-gestation biomarker for the development of PE.
Evaluation of environmental data relating to selected nuclear power plant sites. The Zion Nuclear Power Station site (1976)

Environmental monitoring data for the years 1972 through 1975 pertaining to the Zion Station, which began commercial operation in 1974, were analyzed by the most practical qualitative and quantitative methods. Thermal plume, water chemistry and aquatic biota data were evaluated and the results are presented. The results showed no significant immediate deleterious effects, thus confirming preoperational predictions. Although the plant has not operated long enough to reveal long-term deleterious effects, the present indications do not lead to a concerned prediction that any are developing. The data utilized, the methods of analysis, and the results obtained are presented in detail, along with recommendations for improving monitoring techniques.
A PRML detector for a DVDR system (1999)

In this paper, adaptive algorithms for updating the coefficients of an equalizer and a 2-state Viterbi detector for a partial response maximum likelihood (PRML) detector in a digital versatile disc record (DVDR) system are proposed and implemented with field programmable gate array (FPGA). The conventional partial response (PR) equalization method, derived under the conventional minimum mean square error (MMSE) criterion, exhibits performance degradation due to high-frequency noise enhancement effect of the equalizer in the process of compensating the low pass characteristic of an optical channel with an eight-to-fourteen modulation-plus (EFMPlus) coded input. The proposed equalization method achieves performance improvement by effectively equalizing the channel output at the important points, i.e. zero-crossing points, where the information on actual recorded bits is stored. Considering the speed limit of the FPGA chip, the maximum likelihood (ML) detector is implemented by a 2-state Viterbi algorithm which has similar performance to the original 6-state Viterbi detector by selecting an appropriate value for threshold. Following performance analyses of the proposed algorithms for PRML detector by various computer simulation, the PRML detector is implemented by FPGA chip.
Z-Pinch Driven Inertial Confinement Fusion Program at Sandia National Laboratories: Double Pinch Hohlraum Approach. (2020)

Abstract not provided.
Echo chamber amplification and disagreement effects in the political\n activity of Twitter users (2014)

Online social networks have emerged as a significant platform for political\ndiscourse. In this paper we investigate what affects the level of participation\nof users in the political discussion. Specifically, are users more likely to be\nactive when they are surrounded by like-minded individuals, or, alternatively,\nwhen their environment is heterogeneous, and so their messages might be carried\nto people with differing views. To answer this question, we analyzed the\nactivity of about 200K Twitter users who expressed explicit support for one of\nthe candidates of the 2012 US presidential election. We quantified the level of\npolitical activity (PA) of users by the fraction of political tweets in their\nposts, and analyzed the relationship between PA and measures of the users'\npolitical environment. These measures were designed to assess the\nlikemindedness, e.g., the fraction of users with similar political views, of\ntheir virtual and geographic environments. Our results showed that high PA is\nusually obtained by users in politically balanced virtual environment. This is\nin line with the disagreement theory of political science that states that a\nuser's PA is invigorated by the disagreement with their peers. Our results also\nshow that users surrounded by politically like-minded virtual peers tend to\nhave low PA. This observation contradicts the echo chamber amplification theory\nthat states that a person tends to be more politically active when surrounded\nby like-minded people. Finally, we observe that the likemindedness of the\ngeographical environment does not affect PA. We thus conclude that PA of users\nis independent of the likemindedness of their geographical environment and is\ncorrelated with likemindedness of their virtual environment. The exact form of\ncorrelation manifests the phenomenon of disagreement and, in a majority of\nsettings, contradicts the echo chamber amplification theory.\n
ChemInform Abstract: Synthesis of the Antitumor Bisindole Alkaloid Vinblastine: Diastereoselectivity and Solvent Effect on the Stereochemistry of the Crucial C‐15‐C‐18′ Bond. (1991)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Clinical Hematology: Theory and Procedures (1988)

Part I: The Principles of Hematology 1. An Introduction to Hematology 2. Principles of Blood Collection 3. Molecular Genetics and Cellular Morphology 4. Hematopoiesis Part II: Erythrocytes 5. Normal Erythrocyte Lifecycle and Physiology 6. Erythrocyte Morphology and Inclusions 7. Classification and Laboratory Assessment of Anemias 8. Acute and Chronic Blood Loss Anemias 9. Aplastic and Related Anemias 10. Hypochromic Anemias and Disorders of Iron Metabolism 11. Macrocytic Anemias 12. Hemolytic Anemias 13. The Hemoglobinopathies Part III: Leukocytes 14. Leukocytes: The Granulocytic and Monocytic Series 15. Leukocytes: Nonmalignant Disorders of Granulocytes and Monocytes 16. Leukocytes: Lymphocytes and Plasma Cells 17. Leukocytes: Nonmalignant Lymphocytic Disorders 18. Characteristics of Leukemias and Lymphomas 19. Acute Leukemias 20. Malignant Lymphoid and Monocytic Disorders and Plasma Cell Dyscrasias Part IV: Additional Groups of Malignant Disorders 21. Chronic Myeloproliferative Disorders 22. Myelodysplastic Syndromes Part V: Fundamentals of Hematologic Analysis 23. Body Fluid Analysis 24. Manual Procedures in Hematology and Coagulation 25. Instrumentation in Hematology Part VI: Principles and Disorders of Hemostasis and Thrombosis 26. Principles of Hemostasis and Thrombosis 27. Disorders of Hemostasis and Thrombosis Appendices Answers to Review Questions Basics of Medical Terminology Glossary SI Units The Microscop
U.S. Army Land Condition-Trend Analysis (LCTA) Plot Inventory Field Methods (1992)

The U.S. Army is faced with a unique challenge in managing the lands on its installations, in meeting its needs for training land, and also in meeting environmental compliance recommendations and requirements. The Land Condition-Trend Analysis (LCTA) program uses standard methods to collect, analyze, and report natural resources data, and is the Army's standard for land inventory and monitoring. This report outlines standard methods for collecting and maintaining a permanent LCTA data base on the condition of Army land resources. Included are lists of equipment needed for data collection, and detailed procedures for establishing permanent field plots, collecting plant specimens, inventorying wildlife populations, and maintaining the data bases by periodic short- and long-term monitoring of the field plots.
Do pulsed lasers produce an effective photodynamic therapy response? (2006)

Both IPL and PDL are capable of activation of PDT but produce dramatically less PDT reaction than the standard CW blue-light broadband source. Physicians desiring a robust PDT response might select CW sources over pulsed sources. Ambient light may activate a PDT reaction.
Cyclopentadienylbis (Trimethylphosphine) and Cyclopentadienylbis (Trimethylphosphite) Complexes of Co and Rh (1989)

This chapter contains sections titled: (η5-Cyclopentadienyl)bis(trimethylphosphine)rhodium(I) (η5-Cyclopentadienyl)bis(trimethylphosphite)cobalt(I) (η5-Cyclopentadienyl)bis(trimethylphosphite)cobalt(I) (η5-cyclopentadienyl)bis(trimethylphosphite)-rhodium(I)
Optics for the 20/20 telescope (2003)

We present a plan for making the optics of a 21 m telescope that builds on advances in mirror design and fabrication developed for the Large Binocular Telescope and other large telescopes. The 21 m telescope, with a fast f/0.7 primary mirror made of only seven large honeycomb-sandwich segments and an adaptive secondary mirror with matching segments, is much stiffer than other designs and offers simpler and more accurate wavefront control. It can be a powerful stand-alone telescope, or one of a pair that move on a circular track to achieve coherent imaging with baselines up to 120 m (the 20/20 telescope). Each segment of the 21 m primary mirror is similar to an 8.4 m LBT primary, and each segment of the 2.1 m adaptive secondary mirror is similar to an LBT secondary. The off-axis segments of both mirrors can be made with the same methods and equipment currently used at the Steward Observatory Mirror Lab, and can be polished with the same stressed-lap polishing system used for the LBT mirrors. A change in algorithm to accommodate the asymmetric surface is required, but no new hardware development is needed because the lap bending is similar to that for the LBT mirrors. Each segment can be measured interferometrically, with a combination reflective and diffractive null corrector producing an accurate template wavefront and alignment references for the segments.
Evaluation of Flavoglaucin, Its Derivatives and Pyranonigrins Produced by Molds Used in Fermented Foods for Inhibiting Tumor Promotion (2010)

Flavoglaucin, its derivatives, and pyranonigrins, which are antioxidants produced by the molds used in fermented foods, were examined for their inhibition of tumor promotion by the Epstein-Barr virus early antigen activation test. Flavoglaucin and its derivatives exhibited high activity. Flavoglaucin and such a derivative as isodihydroauroglaucin inhibited mouse skin tumor promotion in a two-stage carcinogenesis test and appear to be antitumor promoters.
A pharmacokinetic comparison of cyclosporin oral solution and cyclosporin capsules in heart and lung transplant recipients (1995)

Abstract Pharmacokinetic profiles were obtained for 16 heart or lung recipients following the administration of identical doses of cyclosporin as oral solution and capsules on consecutive days. A comparison of pharmacokinetic parameters (AUC, Cmax, Cmin and tmax) showed that there were no significant differences between the two formulations except for the tmax, which was significantly longer for the capsules. The mean variation in day-to-day trough levels produced by the two different forms was 25.6%. A retrospective study was carried out of consecutive cyclosporin levels in patients at steady state on oral solution. The mean variation in day-to-day trough levels was 32.3%. This was not significantly different from the variation in consecutive trough levels seen in the oral solution/capsule comparison. This study shows that cyclosporin capsules can be substituted for oral solution without causing acute changes in cyclosporin blood levels, and that the pharmacokinetics of the two formulations are similar.
PCR detection of cytokines in normal human and pagetic osteoblast-like cells (1993)

We investigated the expression of cytokine transcripts in osteoblast-like cells derived from explants of pagetic and normal bone. A reverse transcription-linked PCR was used that allowed the simultaneous analysis of a range of cytokines. Normal osteoblast-like cells were found to contain the transcripts for IL-1 beta, IL-6, and TGF-beta 1. For the first time we detected in bone cells the two other mammalian isoforms of TGF-beta, beta 2, and beta 3. Furthermore, we have also identified mRNA for IL-3 and the novel chemotactic factor, IL-8. Using this sensitive technique it was not possible to detect mRNA for IL-1 alpha, IL-2, IL-4, IL-5, IL-7, TNF-alpha, or interferon-gamma. The human osteosarcoma cell line Saos-2 also showed a similar pattern of expression of these cytokines to primary osteoblast-like cells, with the exception that TNF-alpha was also identified. Cells isolated from pagetic bone showed essentially the same profile of cytokine expression as normal bone except that TNF-alpha was also detected in two of four samples. The cytokine profile of successive populations of cells harvested from one explant culture at 9, 22, and 57 days showed a consistent pattern of cytokine expression, demonstrating the phenotypic stability of the osteoblast-like cells in long-term cultures.
Properties of a single-level surface state induced by Be implantation into Si–SiO2 interfaces (1973)

Be ions implanted in an Si–SiO2 interface constitute the first measured single-level surface state at Ec − E=0.70 eV. Time constant dependence on surface potential was in good agreement with theory. Capture cross sections were determined σp=10−13 cm2 for holes and σn=10−10 cm2 for electrons. The Be ions form an efficient recombination center.