gebhart/patrepeval huggingface dataset:
Mode analysis and stabilization of a spatial power combining array with strongly coupled oscillators (1993)

In order to attain stabilized power-combining operation of a strongly coupled active antenna array, a mode analysis for the multimoding array problem is presented, and an effective method for exciting only the in-phase power-combining mode is proposed. In a one-dimensional array of active antennas coupled mutually through microstrip lines, the frequencies and the voltage distributions of the normal modes are obtained. Stable modes of the array are identified using the averaged potential theory. Time evolutions of the mode amplitudes are also calculated. In order for only the desired power-combining mode to oscillate, appropriate resistors are introduced at the midpoints of the coupling lines between the active antennas. An experiment for arrays with up to eight active antennas has been carried using Gunn diodes. It has been confirmed that the introduction of the resistors is effective for stable excitation of the in-phase power-combining mode.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Hand Hygiene among Physicians: Performance, Beliefs, and Perceptions (2004)

Physician adherence to hand hygiene is associated with work and system constraints, as well as knowledge and cognitive factors. At the individual level, strengthening a positive attitude toward hand hygiene and reinforcing the conviction that each individual can influence the group behavior may improve adherence among physicians. Physicians who work in technical specialties should also be targeted for improvement.
Passivation of GaAs surfaces (1980)

Various approaches to passivating the surface of GaAs have been explored. All of these were aimed at tying dangling bonds with atoms bonding more tightly than either Ga or As. Atomic species of hydrogen and nitrogen were generated by a glow discharge in H2, NH3, or N2. Nitridization with ammonia appears most promising. The degree of passivation was monitored by photoluminescence. A fourfold improvement in luminescence efficiency was obtained with nitridization while a factor-of-ten improvement can be obtained with the less practical technique of generating an (AlGa)As skin. (Author)
A double balanced 3-18 GHz resistive HEMT monolithic mixer (2003)

A double balanced (DB) 3-18 GHz resistance HEMT (high electron mobility transistor) monolithic mixer has been successfully developed. This mixer consists of a AlGaAs/InGaAs HEMT quad, an active LO (local oscillator) balun, and two passive baluns, RF and IF (intermediate frequency). At 16 dBm LO power, this mixer achieves the conversion losses of 7.5-9 dB for 4-14 GHz RF and 7.5-11 dB for 3-18 GHz RF. The simulated conversion loss is very much in agreement with the measured results. Also, a third-order input intercept of +26 dBm is achieved for a 10-11 GHz RF and 1 GHz IF at a LO drive of 16 dBm. The design is believed to be the first DB resistive HEMT MMIC (monolithic microwave integrated circuit) mixer covering up to 6:1 bandwidth.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Wave equation migration of turning waves (2006)

Traditional one‐way wave equation migration recursively downward continues the wavefield and usually ignores the turning waves that propagate beyond 90 degree. It fails to produce good image of the geologic structure that contains strong turning waves, such as the overhanging salt boundary. Full‐wave based reverse‐time migration certainly handles this case, but it's computationally expensive. Here we propose a one‐return wave equation migration to extrapolate both down‐going and up‐going waves. Followed by a properly designed imaging condition, the partial image contributed form turning waves is correctly reconstructed. A numerical example shows that this method can significantly enhance the overhanging salt boundary.
3D building reconstruction based on given ground plan information and surface models extracted from spaceborne imagery (2011)

3D surface models have gained field as an important tool for urban planning and mapping. However, urban environments have a complex nature to model and they provide a challenge to investigate the current limits of automatic digital surface modeling from high resolution satellite imagery. An approach is introduced to improve a 3D surface model, extracted photogrammetrically from satellite imagery, based on the geometric building information embodied in existing 2D ground plans. First buildings are clipped from the extracted DSM based on the 2D polygonal building ground plans. To generate prismatic shaped structures with vertical walls and flat roofs, building shape is retrieved from the cadastre database while elevation information is extracted from the DSM. Within each 2D building boundary, a constant roof height is extracted based on statistical calculations of the height values. After buildings are extracted from the initial surface model, the remaining DSM is further processed to simplify to a smooth DTM that reflects bare ground, without artifacts, local relief, vegetation, cars and city furniture. In a next phase, both models are merged to yield an integrated city model or generalized DSM. The accuracy of the generalized surface model is assessed according to a quantitative-statistical analysis by comparison with two different types of reference data.
Obstacle or Opportunity (1985)

Fresh out of school and looking for a good job... private industry is just one of the career options open to new forestry graduates. But there are so many companies, and all of them are completely different with vastly different operating philosophies. What ca be expected?
Workplace Integration: Key Considerations for Internationally Educated Nurses and Employers (2018)

Integration of internationally educated nurses (IENs) in the workplace over the long term, has not been a clear focus in nursing. The role of the employer organization in facilitating workplace integration for IENs has also not been emphasized in research. The overall aim of this paper is to highlight findings from an instrumental qualitative case study research informed by critical social theory, which examined workplace integration of IENs. The study explored what is meant by ‘integration’ and how the employer organizational context affects workplace integration of IENs. A purposeful sample of twenty-eight participants was involved. The participants included: stakeholders from various vantage points within the case organization as well as IENs from diverse backgrounds who were beyond the process of transitioning into the Canadian workplace—they had worked in Canada for an average of eleven years. Four methods of data collection were used: semi-structured interviews; socio-demographic survey; review of documents; and focus group discussions (FGDs). Thematic analysis methods guided the within subcase analysis first, followed by an across subcase analysis. FGDs were used as a platform for member-checking to establish the credibility of study findings. The resulting definition and conceptual framework point to workplace integration of IENs as a two-way process requiring efforts on the part of the IENs as well as the employer organization. This paper elaborates on selected themes of how beyond transition, workplace integration entails IENs progressing on their leadership journey, while persevering to overcome challenges. Organizational factors such as workforce diversity, leadership commitment to equity and engagement with the broader community serve as critical enablers and the importance of workplaces striving to avoid common pitfalls in addressing the priority of IEN integration are also discussed. This paper concludes with implications and key considerations for workplace integration of IENs.
Proliferation and activation of vascular endothelial cells in epiretinal membranes from patients with proliferative diabetic retinopathy. An immunohistochemistry and clinical study. (1994)

In the present study, we investigated the status of proliferation and activation of vascular endothelial cells in epiretinal membranes from patients with proliferative diabetic retinopathy (PDR) by means of immunohistochemical techniques and compared the findings with the main clinical features of the patients. The results showed that of 21 vascularized membranes, 17 (81%) contained proliferating endothelial cells (positive for proliferating vascular endothelial cell marker EN 7/44) and 19 (90%) were positive for endothelial cell activation marker anti-VCAM-1; Furthermore, by using a double-staining technique we found that in 15 of the 17 cases (88%) the proliferating vascular endothelial cells were activated (expressing VCAM-1). Of the 18 type I diabetics, 15 (83%) contained activated proliferating endothelial cells, whereas in the 3 type II patients, only 1 membrane contained activated proliferating endothelial cells, Preoperatively, 18 patients had severe vitreous hemorrhage, among whom 15 (83%) contained proliferating endothelial cells, which were activated in 13 cases, and 16 patients had tractional retinal detachment, among whom 12 contained proliferating endothelial cells, which were activated in 11 cases. In all, 7 patients (33%) had vitreous rebleeding within 8 months postoperatively, whose membranes in 6 cases contained proliferating and activated endothelial cells. In contrast, of the 4 patients who were negative for EN 7/44, none had rebleeding, and of the 6 patients who were negative for EN 7/44 and anti-VCAM-1, only 1 had rebleeding.(ABSTRACT TRUNCATED AT 250 WORDS)
<title>Digital Radiography</title> (1980)

Several diagnostic X-ray imaging techniques have been developed over the last few years which are variously called digital radiography, electronic radiography, computed radiography, and digital fluoroscopy. They all have the common element of producing projection radiographic images in a digital form. Some of the advantages proposed for these systems are highly efficient use of dose, scatter reduction, ease of operation, noiseless data transmission, new types of image storage, flexible display capability to exploit the total range of detected information, and a potential for various forms of image manipulation such as edge enhancement, filtering, and subtraction.1-7 Digital radiography will succeed as a diagnostic modality only to the extent that these advantages over the well entrenched analog radiography are truly realized.
DRAMDig: A Knowledge-assisted Tool to Uncover DRAM Address Mapping (2020)

As recently emerged rowhammer exploits require undocumented DRAM address mapping, we propose a generic knowledge-assisted tool, DRAMDig, which takes domain knowledge into consideration to efficiently and deterministically uncover the DRAM address mappings on any Intel-based machines. We test DRAMDig on a number of machines with different combinations of DRAM chips and microarchitectures ranging from Intel Sandy Bridge to Coffee Lake. Comparing to previous works, DRAMDig deterministically reverse-engineered DRAM address mappings on all the test machines with only 7.8 minutes on average. Based on the uncovered mappings, we perform double-sided rowhammer tests and the results show that DRAMDig induced significantly more bit flips than previous works, justifying the correctness of the uncovered DRAM address mappings.
Quality of general movements in preterm infants with transient periventricular echodensities (1998)

By means of sequential videotape recordings, the relevance of the quality of general movements for neurological outcome was determined in a group of 21 appropriate-for-gestational-age preterm infants with transient periventricular echodensities of variable localization and duration and in 6 infants without echodensities. Echodensities, especially in the parieto-occipital area, affected the quality of general movements. Echodensities persisting beyond 14 d were associated with abnormal general movements; infants with echodensities up to 14 d had either normal or abnormal general movements. The developmental course of movement quality was correlated to neurological outcome (p < 0:005): normal outcomes were found in 11/12 infants with normal general movements throughout and in 9/11 infants with transient abnormal general movements; all 4 infants with persistent abnormal general movements had impaired outcomes. In infants with transient echodensities, longitudinal assessment of the quality of general movements helps to determine if there is brain dysfunction, either transient or persistent, and identifies infants at risk for impaired neurological outcomes.
Liver Cancer Stem Cells (2011)

Hepatocellular carcinoma is the most common primary malignancy of the liver in adults. It is also the fifth most common solid cancer worldwide and the third leading cause of cancer-related death. Recent research supports that liver cancer is a disease of adult stem cells. From the models of experimental hepatocarcinogenesis, there may be at least three distinct cell lineages with progenitor properties susceptible to neoplastic transformation. Identification of specific cell surface markers for each of the liver cell types, production of corresponding monoclonal antibodies and cell sorting techniques have together revolutionized the characteristics of normal stem cells. In hepatocarcinogenesis, multiple signaling transduction pathways, important for stem cell proliferation and differentiations, are deregulated. Strategies are being developed to identify and characterize the liver cancer stem cells. Targeting liver cancer stem cells may bring hope to curing hepatocellular carcinoma.
A comparison of the VRS and MAC principles for network RTK (2009)

The Network Real-Time Kinematic (NRTK) GPS and GNSS technology isincreasingly being utilised for a wide range of surveying and mappingapplications, providing users with instant and highly accurate positioninformation over distances of several tens of kilometres. This paper reviewsthe principles behind the two prevalent NRTK methodologies currentlyavailable, the Virtual Reference Station (VRS) approach and the Master-Auxiliary Concept (MAC). The inherent differences are outlined, and thetwo concepts are compared from both the users and the network operatorsperspective. While both methods are supported by the major GNSSequipment manufacturers and deliver positioning results at the sameaccuracy-level, there are significant differences in regards to the distributionof processing load, correction data transparency, legal traceability andrequired bandwidth. Several CORSnet-NSW sites are used to empiricallydetermine the average bandwidth required for NRTK operation under typicalconditions based on differently sized networks ranging from 3 to 9 referencestations. While the bandwidth required for MAC is significantly larger thanfor VRS, particularly for large cells, results show that it can be readilysupported by common radios.
On aperiodic and periodic complementary binary sequences (1999)

We give direct and recursive constructions for aperiodic and periodic complementary sequences. Using these constructions, many missing entries in the table of Bomer and Antweiler (1990) can be filled.
Effect of Concanavalin A on Cells Infected with Enveloped RNA Viruses (1972)

SUMMARY A variety of cells infected with different enveloped RNA viruses are specifically agglutinated by Concanavalin A. The production of envelope-components seems to be essential for the agglutinability of cells infected with myxovirus. A strong flocculation of purified virus particles by Concanavalin A indicates that the specific receptor of the host cell membrane is incorporated into the virus envelope.
Limitations in the use of PAM fluorometry for measuring photosynthetic rates of macroalgae at high irradiances (2004)

Pulse amplitude modulated (PAM) fluorometry can be used for measuring photosynthetic electron transport rates (ETR) of marine angiosperms and macroalgae both in the laboratory and in situ. Regarding macroalgae, quantitative values and linear correlations between ETR and rates of photosynthetic O2 evolution have so far been shown only for a few species under low irradiances. As a logical continuation of such work, the aim of the present study was to (a) assess to what degree high irradiances would limit such measurements and (b) evaluate whether PAM fluorometry could be used quantitatively also for other marine macroalgae from different phyla. This was done by comparing ETR with rates of gross O2 evolution (net O2 exhcange corrected for dark respiration) at various irradiances for the green alga Ulva lactuca grown at two irradiances, the brown algae Fucus serratus and Laminaria saccharina and the red algae Palmaria palmata and Porphyra umbilicalis. At low irradiances, there was a clear positive correlation between O2 evolution and fluorescence-based ETR. At high irradiances, however, all algae featured an apparent decrease in ETR while O2 evolution remained relatively constant, and this resulted in markedly increasing O2/ETR ratios. This anomaly could be nicely illustrated in plots of O2/ETR as a function of the effective quantum yield of photosystem II (Y). Such plots showed that the O2/ETR ratio generally started to increase when Y reached a critical low value of c. 0.1. It was further found that the irradiance at which this value was reached varied with species and previous light histories. Thus, it is the Y value, rather than the irradiance per se
Recessed Channel Fin Field-Effect Transistor Cell Technology for Future-Generation Dynamic Random Access Memories (2008)

A new bulk fin field-effect transistor (bulk FinFET) with a recessed channel structure is proposed as a future dynamic random access memory (DRAM) cell transistor following the recess-channel-array transistor (RCAT). An enlarged effective channel length improves the relationship between off-state channel leakage (Ioff) and gate-induced drain leakage (GIDL) current, which correspond to the static and dynamic retention characteristics of a DRAM chip. The high current drivability of FinFET is maintained even with a recessed channel. A recessed-channel FinFET (RC-FinFET) shows excellent DC characteristics (subthreshold swing, drain-induced barrier lowering and body-bias effect) and longer retention time than a conventional local-damascene FinFET (LD-FinFET).
[Intermittent claudication in a young patient. A case of isolated fibromuscular dysplasia of the external iliac artery]. (1999)

Effort-linked intermittent claudication of arterial origin in sportsmen is often attributed to endofibrosis of the external iliac artery. Some knowledge of possible differential diagnoses, in particular the fibrodysplasia, is of importance regarding the therapy involved. Angioplasty treatment of external iliac endofibrosis may be controversial. However, the same does not apply to fibrodysplasia angioplasty, particularly if the latter is accomplished by inserting an endoprothesis. A case of fibromuscular dysplasia of external iliac artery in a 37 year old woman, treated with endoluminal angioplasty and stent, is reported.
IV분과 : 간벌강도에 따른 잣나무 인공림의 생장변화 모니터링 (2014)

본 연구는 잣나무 인공림을 대상으로 간벌강도를 다양하게 실시한 후 흉고직경, 수고, 수관폭, 수간재적, 수간바이오매스, 고사목의 생장변화를 파악하고자 실시하였다. 1차 간벌은 19년생 때 입목본수의 29~69% 강도로 실시되었으며, 간벌 직후(19년생), 5년 후(24년생), 12년 후(31년생)에 3차에 걸쳐 입목조사가 수행되었다. 흉고직경생장의경우 대조구에 비해 강도간벌구의 평균생장량이 간벌 5년 후 19.6~19.9%, 12년 후 13.3~24.7% 높았으며 유의적인 생장차이가 나타났다. 또한 간벌 후 초기생장량이 후기생장량보다 좋은 것으로 나타났다. 대경목 후보(DBH ≥ 25 cm)본수를 비교한 결과, 강도간벌구에서 약 31%가 나타난 반면, 대조구에서는 단지 2%에 불과했다. 수고생장은 간벌강도에 따라 생장의 차이가 나타나지 않았으며, 평균수관폭 생장량은 강도간벌구가 대조구에 비해 5년 후 30.6~33.3%,12년 후 35.0~40.0% 높았다. 단목재적의 평균 생장량은 강도간벌구가 대조구에 비해 간벌 5년 후 39.8~46.8%, 12년후 23.0~52.0% 높았다. 단위면적당 최대 임분재적 및 바이오매스량은 무간벌표준지에서 간벌 후 12년 동안 133 m3/ha(51 kg/ha)에서 344 m3/ha(132 kg/ha)로 증가하였다. 수관폭, 재적, 바이오매스는 간벌강도에 따라 모두 유의적인 생장차이가 있는 것으로 나타났다. 고사목은 간벌 후 12년 동안 강도간벌구에서 전혀 발생하지 않은 반면 대조구에서는27.9~37.8% 발생하였다. 2차 간벌시기를 결정하기 위하여 목편을 통해 연륜생장을 분석한 결과, 1차 간벌 후 10년전후가 적합한 것으로 나타났다.
Complications of Posterior Fossa Craniotomy (1983)

The nurse, as primary and continuous accessor of the patient, must have a thorough knowledge of complications related to posterior fossa surgery. Continuous evaluation of neuro status will alert her to any changes. These changes can occur quickly and require immediate intervention to prevent life-threatening situations. Attentive nursing care, both physiological and psychological, with utilization of other health care team members (social service, mental health counselors, physical and occupational therapy) can ensure a more secure recuperative period.
Electron Diffraction Investigation on the Molecular Structure of <i>n</i>-Butane (1959)

Abstract The molecular structure of n-butane has been investigated by means of the sector-microphotometer method of electron diffraction. The least-square analysis of the radial distribution curve has been carried out both for modified and unmodified curves giving the internuclear distances as well as their mean amplitudes and the bond angles. The estimation of experimental standard errors has been made by examining various sources of errors. Important results are the following: a) The average distance of the C–C bonds is 1.539±0.003Å. b) The angle C–C–C is 112°9′± 9′, is considerably greater than the tetrahedral angle. c) The position of hydrogen atoms is located with considerable accuracy; C–H=1.100±0.003Å and &lt;C–C–H=110°22′±15′. d) The mean amplitudes measured are in agreement with the calculated values within the limit of error. e) The existence of rotational isomers, the trans and the gauche forms, are confirmed. The structure and the fraction of the isomers are determined. The result is consistent with the spectroscopic results.
Jquery Ui 1.8: The User Interface Library for Jquery (2009)

An example-based approach leads you step-by-step through the implementation and customization of each library component and its associated resources in turn. To emphasize the way that jQuery UI takes the difficulty out of user interface design and implementation, each chapter ends with a 'fun with' section that puts together what you've learned throughout the chapter to make a usable and fun page. In these sections you'll often get to experiment with the latest associated technologies like AJAX and JSON. This book is for front-end designers and developers who need to quickly learn how to use t
<i>β</i>-Endorphin Suppresses Adrenocorticotropin and Cortisol Levels in Normal Human Subjects (1983)

To determine the effect of beta-endorphin on the pituitary-adrenal axis, human synthetic beta-endorphin was infused iv in 10 normal human subjects. Either beta-endorphin (0.3, 1.0, and 3.0 micrograms/kg . min, each dose for 30 min) or a control (sham) infusion of 5% dextrose water was administered in a blind fashion in the same subjects on 2 successive days. Plasma ACTH and cortisol and serum human GH and PRL levels were measured 30 min before and then every 30 min for 210 min during and after both the beta-endorphin and control infusions. In all subjects, cortisol levels decreased below the basal level in response to the infusion of beta-endorphin. The threshold dose was 1.0 micrograms/kg . min, with the mean control cortisol level (12 +/- 2 micrograms/dl) declining significantly to 7 +/- 1 micrograms/dl (1.0 micrograms/kg . min) and 6 +/- 1 micrograms/dl (3.0 micrograms/kg . min; P less than 0.01). ACTH levels also were significantly lower than the control value (48 +/- 6 pg/ml) at the 1.0 microgram/kg . min dose (32 +/- 4 pg/ml; P less than 0.05). The decline in ACTH and cortisol levels was also significantly different from levels obtained during the control infusions (P = 0.001 and P = 0.01, respectively). The results are consistent with short feedback loop inhibition of pituitary ACTH release or suppression of hypothalamic corticotropin-releasing factor release by beta-endorphin.