gebhart/patrepeval huggingface dataset:
Steroidal Sapogenins. VIII. Markogenin (22b-Spirostane-2ξ,3β-diol). A New Sapogenin Isolated from Yucca<sup>2</sup> (1953)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSteroidal Sapogenins. VIII. Markogenin (22b-Spirostane-2ξ,3β-diol). A New Sapogenin Isolated from Yucca2Monroe E. Wall, C. Roland Eddy, Samuel Serota, and Robert F. MiningerCite this: J. Am. Chem. Soc. 1953, 75, 18, 4437–4440Publication Date (Print):September 1, 1953Publication History Published online1 May 2002Published inissue 1 September 1953https://pubs.acs.org/doi/10.1021/ja01114a012https://doi.org/10.1021/ja01114a012research-articleACS PublicationsRequest reuse permissionsArticle Views72Altmetric-Citations10LEARN 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
Prenatal treatment of type I congenital cystic adenomatoid malformation by intrauterine fetal thoracentesis (1989)

No Abstract.
Asbestos Fiber Analysis in Nine Lung Cancer Cases with High Asbestos Exposure (1995)

We examined the types and sizes of 100 asbestos fibers in lung tissue obtained from 9 lung-cancer cases (5 autopsy and 4 surgical) with more than 10(4) asbestos bodies per 5 g of wet lung tissue, asbestos bodies in histological sections, and the history of occupational asbestos exposure. Evaluation of asbestos fibers by transmission electron microscopy (2,000 x magnification) revealed that most fibers were longer than 3 microns (96%) and were thicker than 0.1 micron (93%). The analytical conditions we used enabled us to identify 99.7% of all asbestos fibers as being amphibole asbestos. Crocidolite fiber, which was found most frequently (73.1%), was the predominant type of fiber found in 8 of the 9 cases; crocidolite was followed by amosite (21.7%), which was the predominant type found in the remaining case. Crocidolite fibers were thin and had a high aspect ratio (mean diameter = 0.23 micron, mean aspect ratio [length/diameter] = 85.5). Amosite fibers were long, and they also had a high aspect ratio (mean length = 21.8 microns, mean aspect ratio = 66.4). It has been suggested that such fibers with a high aspect ratio are strongly carcinogenic to pulmonary parenchyma. Review of our previous and present data with respect to the ratio of amosite to crocidolite fibers in groups of subjects who had various diseases revealed that this ratio was relatively constant in some occupations. The more predominant fibers found were crocidolite in insulation workers and amosite in railroad workers. The ratio of amosite to crocidolite fibers should be considered in tissue-burden studies.
A multi-state interferometer on an atom chip (2013)

Matter-wave interferometry is a powerful tool for high-precision measurements of the quantum properties of atoms, many-body phenomena and gravity. The most precise matter-wave interferometers exploit the excellent localization in momentum space and coherence of the degenerate gases. Further enhancement of the sensitivity and reduction of complexity are crucial conditions for the success and widening of their applications. Here we introduce a multistate interferometric scheme that offers advances in both these aspects. The coherent coupling between Bose-Einstein condensates in different Zeeman states is used to generate high-harmonic output signals with an enhanced resolution and the maximum possible interferometric visibility. We demonstrate the realization of such an interferometer as a compact, easy to use, atomchip device. This provides an alternative method for the measurement of the light-atom and surface-atom interactions and enables the application of multiparameter sensing schemes in cold-atom interferometry.
A supersonic multikilohertz pulsed HF chemical laser (1983)

Operation of a pulsed, multikilohertz-repetition-rate, supersonic HF chemical laser is described. Continuously flowing reactants are premixed and then expanded through a supersonic nozzle to the laser cavity where a pulsed electrical discharge initiates the chemical reaction producing the lasing species. An average power of 12 W has been obtained from a hydrogen/sulfur-hexafluoride/helium mixture. It is suggested that this apparatus can be used to overcome some of the inherent problems in achieving quasi-continuous laser operation based on a chain reaction in fluorine/hydrogen mixtures.
The Regulator of MAT2 (ROM2) Protein Binds to Early Maturation Promoters and Represses PvALF-Activated Transcription (1996)

Maw-Shenq Chern, Andrew J. Bobb, Mauricio M. Bustos, The Regulator of MAT2 (ROM2) Protein Binds to Early Maturation Promoters and Represses PvALF-Activated Transcription, The Plant Cell, Vol. 8, No. 2 (Feb., 1996), pp. 305-321
[Optimization of the technic in the study of the upper abdomen using magnetic resonance. I. Artifact reduction]. (1989)

Complete motion artifact suppression is possible in abdominal MR imaging with the simple optimization of sequence parameters, with no need for special softwares. The authors have studied the influence of sequence parameters modification on the signal/noise relation and on the presence of motion artifacts. The tested parameters included Repetition Time (TR), 150 to 2000 ms, Echo Time (TE), 20 to 120 ms, and the number of acquisitions, 2 to 16. In T1-weighted sequences, the major advantages were offered by the short TR and short TE association, with many acquisitions. Optimal signal/noise relation and complete motion artifact suppression were thus obtained. In T2-weighted sequences, TE values had to be changed according to the desired contrast enhancement, and the number of acquisitions could not be increased to more than 2 in order to keep the acquisition time short.
Enhanced Dynamic Spectrum Access in UAV Wireless Networks for Post-Disaster Area Surveillance System: A Multi-Player Multi-Armed Bandit Approach (2021)

Modern wireless networks are notorious for being very dense, uncoordinated, and selfish, especially with greedy user needs. This leads to a critical scarcity problem in spectrum resources. The Dynamic Spectrum Access system (DSA) is considered a promising solution for this scarcity problem. With the aid of Unmanned Aerial Vehicles (UAVs), a post-disaster surveillance system is implemented using Cognitive Radio Network (CRN). UAVs are distributed in the disaster area to capture live images of the damaged area and send them to the disaster management center. CRN enables UAVs to utilize a portion of the spectrum of the Electronic Toll Collection (ETC) gates operating in the same area. In this paper, a joint transmission power selection, data-rate maximization, and interference mitigation problem is addressed. Considering all these conflicting parameters, this problem is investigated as a budget-constrained multi-player multi-armed bandit (MAB) problem. The whole process is done in a decentralized manner, where no information is exchanged between UAVs. To achieve this, two power-budget-aware PBA-MAB) algorithms, namely upper confidence bound (PBA-UCB (MAB) algorithm and Thompson sampling (PBA-TS) algorithm, were proposed to realize the selection of the transmission power value efficiently. The proposed PBA-MAB algorithms show outstanding performance over random power value selection in terms of achievable data rate.
Comparative Genomic Analysis of Clinical Strains of Campylobacter jejuni from South Africa (2008)

Background: Campylobacter jejuni is a common cause of acute gastroenteritis and is also associated with the post-infectious neuropathies, Guillain-Barre and Miller Fisher syndromes. In the Cape Town area of South Africa, C. jejuni strains with Penner heat-stable (HS) serotype HS:41 have been observed to be overrepresented among cases of Guillain-Barre syndrome. The present study examined the genetic content of a collection of 32 South African C. jejuni strains with different serotypes, including 13 HS:41 strains, that were recovered from patients with enteritis, Guillain-Barre or Miller Fisher syndromes. The sequence-based typing methods, multilocus sequence typing and DNA microarrays, were employed to potentially identify distinguishing features within the genomes of these C. jejuni strains with various disease outcomes.
Parallel image transmission by a single optical fiber (1978)

A nonscanning technique in which an image of a two-dimensional input transparency is transmitted in parallel through a single, round, step-index optical fiber is described. To ensure that the output display is not smeared, the input light distribution is first spectrally and spatially coded, and after transmission through the optical fiber it is decoded. Both coding and decoding operations are achieved solely by means of conventional, passive optical components.
Preoperative Prophylactic Digitalization of Patients with Coronary Artery Disease???A Randomized Echocardiographic and Hemodynamic Study (1984)

Advice regarding digitalis and surgical patients has ranged from a recommendation in 1967 by Dalen and his colleagues that all patients over the age of 60 be fully digitalized preoperatively, to the practice prevalent in many institutions today of withdrawing digitalis prior to anesthesia and surgery in patients. This situation is complex because chronic digitalization may well not be the same thing at all as acute digitalization. In the current study, comprising 8 patients in each group, the authors reported improved cardiac function postoperatively in those patients given an acute dose of digitalis preoperatively, in patients not taking digitalis prior to that time. It should be emphasized that this is not an outcome study. None of the patients in either group had poor outcomes from the standpoint of myocardial infarctions, etc. Further, a blanket recommendation that preoperative digitalization by the i.v. route become a standard is frightening to this Editor. Many such patients are not in ideal balance with respect to their potassium. Further, the anesthetists' “heavy on the bag” may well result in PaCO2‘s in the 20's, with consonant further reduction in serum potassium on an acute basis. I do not believe that, because no dysrhythmias were recorded in these 8 carefully controlled and studied patients, it is valid to make a recommendation that preoperative digitalis i.v. is always that safe. Nonetheless, the results of the investigation are impressive. The digitalized patients did show objective and convincing evidence of improved ventricular performance. Also, because heart rates were lower, improvements in ventricular performance probably came at less O2 cost. My recommendations at this point, with respect to this study, are that the authors continue their excellent work and, when they do so, it can be hoped that they will present us with an outcome study showing that such digitalization does indeed result in fewer perioperative myocardial infarctions and/or other untoward complications. Until such time, I remain insecure about the “prophylactic” use of a drug with such a low therapeutic index.
Exploring evolutionary stability in a concurrent artificial chemistry (2008)

Multi-level selection has proven to be an affective mean to\nprovide resistance against parasites for catalytic networks\n(Cronhjort and Blomberg, 1997). One way to implement these multi-level systems is to group molecules into several\ndistinct compartments (cells) which are capable of cellular\ndivision (where an offspring cell replaces another cell). In\nsuch systems parasitized cells decay and are ultimately displaced by neighboring healthy cells. However in relatively small cellular populations, it is also possible that infected cells may rapidly spread parasites throughout the entire cellular population. In which case, group selection may fail to provide resistance to parasites. In this paper, we propose a concurrent artificial chemistry (AC) which has been implemented on a cluster of computers where each cell is running on a single CPU. This multi-level selectional artificial chemistry called the Molecular Classifier Systems was based on the Holland broadcast language. An attribute inherent to such a concurrent\nsystem is that the computational complexity of the\nmolecular species contained in a reactor may now affect the\nfitness of the cell. This molecular computational cost may\nbe regarded as the chemical activation energy necessary for\na reaction to occur. Such a property is often not considered\nin typical Artificial Life models. Our experimental results\nobtained with this system suggest that this activation energy property may improve the resistance to parasites for catalytic networks. This work highlights some of the benefits that could be obtained using a concurrent architecture on top of computational efficiency. We first briefly present the Molecular Classifier Systems, this is then followed by a description of the multi-level concurrent model. Finally we discuss the benefits of using this multi-level concurrent model to enhance evolutionary stability for catalytic networks in our AC.
HLA in Familial Malignant Melanoma (1986)

In a family displaying the familial atypical multiple-mole melanoma syndrome, linkage analyses were performed between HLA and an assumed dominant gene respectively determining each of the following affected phenotypes: precursor lesions; cutaneous malignant melanoma (CMM); and precursor lesions or CMM or both. The results suggest that there is a complex mechanism involving several factors, genetic and environmental interacting with the gene determining precursor lesions to cause the neoplastic transformation.
Multifunctional Nanoplatform for Targeted Laser-induced Hyperthermia and Microscopy of Breast Cancer Cells using SPION-based Gold and Folic Acid Conjugated Nanodendrimers: An in vitro Assay (2017)

The use of nanotechnology seems to be a promising approach for early detection, imaging and therapy of cancer. In this investigation, 9 nm superparamagnetic iron oxide nanoparticles (SPION) were synthesized and functionalized by third generation polyamidoamine (G3-PAMAM) dendrimer. The magnetodendrimer samples were then conjugated by folic acid molecules for targeting and by gold nanoparticles for photothermal hyperthermia purpose. The gold nanoparticles were synthesized using three reducing agents of sodium borohydride, hydrazine sulfate and presynthesized 10-nm AuNPs. The final nanocomposite is named IDAF NC (Iron oxide-Dendrimer-Gold-Folic acid). Two breast cancer cell lines of MDA MB 231 and MCF 7 were used for cytotoxicity, uptake and photothermal assay. The results confirmed that AuNPs prepared by sodium borohydrate and the pre-synthesized 10-nm AuNPs were larger and those prepared by hydrazine sulfate were smaller and uniformly entrapped within dendrimer cavities. The MDA MB 231-IDAF-Hydr combination exhibited the highest viability percentage at 50 μg/mL before laser irradiation and lowest cancer cell viability of 65% (i.e., highest cell apoptosis and crystallization after irradiation).
EBV-Driven CD8+ T-Cell Lymphoproliferative Disorder Associated With Hemophagocytic Lymphohistiocytosis (2012)

Hemophagocytic lymphohistiocytosis (HLH) is characterized by multisystem involvement with excessive activation of histiocytes. The predominant clinical findings of HLH are persistent fever, cytopenia, hepatitis, and splenomegaly. Hemophagocytosis is one of the characteristic morphologic findings. EBV infection is one of most common infectious causes for acquired HLH. Herein, we report a rare case of EBV-driven T-cell lymphoproliferative disease associated with marked HLH. The patient was a 16-year-old otherwise healthy boy who suddenly developed fever and was found to have pancytopenia and hepatosplenomegaly. Laboratory studies showed hyperferritinemia, hypofibrinogenemia, and an elevated soluble IL-2R level. Serology studies were positive for EBV NA1 IgG and EBV VCA IgM with high titer of EBV VCA IgG (1:1,280). EBV DNA quantitative study by PCR showed 7.8 10 7 copies/mL. A clinical diagnosis of HLH triggered by EBV infection was rendered. Bone marrow evaluation showed a hypocellular bone marrow with diffuse lymphohistiocytic infiltrate and hemophagocytosis. Atypical large lymphocytes with irregular nuclei were noted. Flow cytometric analysis showed atypical T cells that were positive for CD3, CD8, and TCR/ with loss of CD5 and CD7 expression. These cells were positive for perforin, granzyme by immunohistochemistry, and EBER by in situ hybridization. T-cell gene rearrangement study showed clonal TCR gene PCR product. Cytogenetics study on bone marrow aspirate showed an abnormal karyotype, 49,XY,+5,+11,+20 [20]. This case illustrates a rare example of EBV-driven T-cell lymphoproliferative disorder associated with HLH, a distinct clinicopathologic syndrome. Distinguishing atypical T-cell proliferation from usual EBV-driven changes is important since it influences treatment and prognosis. Detailed immunophenotypic and molecular studies have a critical role in achieving the correct diagnosis and may represent a useful tool for disease follow-up.
MedCOM: a communication protocol to transmit physiologic data reliably over a modem connection (2002)

The authors designed and developed a communication protocol (MedCOM) specifically designed to transmit physiologic data over modem connections. MedCOM uses data packets of variable length, a checksum, and a positive acknowledge algorithm for reliability. MedCOM was tested with data generated by the Loral/UF Human Patient Simulator over a telephone link between Gainesville, FL and Orlando, FL. Link interruption tests show that MedCOM is reliable and that it has the ability to resynchronize a connection when synchronization is lost.
Ein intramolekulares Chinhydron der [2](1,4)Naphthalion[2]paracyclophan‐Reihe (1977)

Als Modelle zum Studium der Übertragung von Donor‐Acceptor‐Wechselwirkung wurden das Chinhydron (1) und einige seiner Derivate synthetisiert. Diese Verbindungen haben weniger ausgeprägte CT‐Banden als die Chinhydrone der Naphthalinophanreihe. magnified image
Trigram dialogue control using POMDPs (2010)

This paper proposes hybrid dialogue control of both trigram and POMDP dialogue controls by extending our proposed method that uses two approaches: automatically acquiring POMDP structures and rewards for target dialogues through Dynamic Bayesian Networks (DBNs) with a large amount of dialogue data and reflecting action predictive probabilities into the POMDP structures. In this extension, we modify the action predictive probabilities to treat trigram dialogue controls. Experimental results show that the proposed method can treat a trigram dialogue control with robustness for erroneous conditions and can simultaneously maximize trigram probability and the dialogue evaluations obtained from users.
FLUORADENE (INDENO[1,2,3-jk]FLUORENE), AN UNUSUALLY ACIDIC HYDROCARBON (1958)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFLUORADENE (INDENO[1,2,3-jk]FLUORENE), AN UNUSUALLY ACIDIC HYDROCARBONH. Rapoport and G. SmolinskyCite this: J. Am. Chem. Soc. 1958, 80, 11, 2910Publication Date (Print):June 1, 1958Publication History Published online1 May 2002Published inissue 1 June 1958https://pubs.acs.org/doi/10.1021/ja01544a087https://doi.org/10.1021/ja01544a087research-articleACS PublicationsRequest reuse permissionsArticle Views85Altmetric-Citations12LEARN 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
Transient Strain Driven by a Dense Electron-Hole Plasma (2003)

We measure transient strain in ultrafast laser-excited Ge by time-resolved x-ray anomalous transmission. The development of the coherent strain pulse is dominated by rapid ambipolar diffusion. This pulse extends considerably longer than the laser penetration depth because the plasma initially propagates faster than the acoustic modes. X-ray diffraction simulations are in agreement with the observed dynamics.
Use of Motor Abundance in Young and Older Adults during Dual-Task Treadmill Walking (2012)

Motor abundance allows individuals to perform any task reliably while being variable in movement's particulars. The study investigated age-related differences in this feature when young adults (YA) and older adults (OA) performed challenging tasks, namely treadmill walking alone and while performing a cognitive task. A goal function for treadmill walking was first defined, i.e., maintain constant speed at each step, which led to a goal equivalent manifold (GEM) containing all combinations of step time and step length that equally satisfied the function. Given the GEM, amounts of goal-equivalent and non-goal-equivalent variability were afterwards determined and used to define an index providing information about the set of effective motor solutions relative to the GEM. The set was limited in OA compared to YA in treadmill walking alone, indicating that OA made less flexible use of motor abundance than YA. However, this differentiation between YA and OA disappeared when concurrently performing the cognitive task. It is proposed that OA might have benefited from cognitive compensation.