gebhart/patrepeval huggingface dataset:
Integrated predictive power control and dynamic channel assignment in mobile radio systems (2003)

It is known that dynamic allocation of channels and power in a frequency/time-division multiple access system can improve performance and achieve higher capacity. Various algorithms have been separately proposed for dynamic channel assignment (DCA) and power control. Moreover, integrated dynamic channel and power allocation (DCPA) algorithms have already been proposed based on simple power control algorithms. In this paper, we propose a DCPA scheme based on a novel predictive power control algorithm. The minimum interference DCA algorithm is employed, while simple Kalman filters are designed to provide the predicted measurements of both the channel gains and the interference levels, which are then used to update the power levels. Local and global stability of the network are analyzed and extensive computer simulations are carried out to show the improvement in performance, under the dynamics of user arrivals and departures and user mobility. It is shown that call droppings and call blockings are decreased while, on average, fewer channel reassignments per call are required.
Phase transitions in Ga–Sb phase change alloys (2012)

Abstract Ga–Sb alloys are potential candidates for phase change random access memory (PCRAM) applications. Ga–Sb alloys of variable compositions including the single stoichiometric GaSb and several Sb‐rich compositions were studied using resistivity versus temperature measurements, static laser testing, and time‐resolved X‐ray diffraction. It was found that the stoichiometric alloy has an unusual inverse optical contrast compared to typical phase change materials as the crystalline phase has lower reflectance compared to the amorphous phase. Sb‐rich alloys show a decrease in reflectance upon crystallization at lower temperature but an increase in reflectance at higher temperature from subsequent Sb segregation. Alloys very rich in Sb only show a positive change in reflectance upon crystallization typical for conventional phase change materials. magnified image Change in reflectance of a Ga/Sb = 36:64 (in at.%) amorphous thin film crystallized by laser pulses of variable length and power. Unusual for a phase change material, this alloy shows both positive and negative contrast at different laser power levels.
Viscosity Patterns of Peanut Protein Solutions. (1945)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTViscosity Patterns of Peanut Protein Solutions.R. S. Burnett, E. J. Roberts, and E. D. ParkerCite this: Ind. Eng. Chem. 1945, 37, 3, 276–281Publication Date (Print):March 1, 1945Publication History Published online1 May 2002Published inissue 1 March 1945https://doi.org/10.1021/ie50423a020Request reuse permissionsArticle Views71Altmetric-Citations13LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (799 KB) Get e-Alerts
Quantitative analysis of cerebrospinal fluid spaces in children with occipital plagiocephaly (1996)

The etiology of occipital plagiocephaly (OP) is not fully understood. The authors have observed that many infants with this condition have external hydrocephalus. This study was undertaken to quantify cerebrospinal fluid (CSF) space caliber in children with OP and to compare these measurements to those derived from normal age-matched controls to further elucidate the pathogenesis of this condition. Thirty-one infants with isolated unilateral OP (mean age 6 months) were studied. Infants with multiple cranial suture abnormalities, impaired neurological function, developmental delay, and associated craniofacial anomalies were excluded. Twenty normal infants were evaluated as controls. The volumes of the sylvian fissures, frontal and occipital subarachnoid spaces, as well as the cross-sectional areas of the suprasellar and perimesencephalic cisterns, were calculated from computerized tomography (CT) studies. Ventricular size was also assessed. Generalized subarachnoid space dilation was observed in 29 (93.5%) of the 31 children with OP. Head circumference was significantly greater in the case group (71.4 vs. 50.8 percentile; p = 0.0002 by analysis of variance). The sylvian fissure volume was significantly larger in the case group (5.8 ml vs. 0.7 ml in controls, p < 0.0001). The volume of the contralateral sylvian fissure was greater than that ipsilateral to the side of OP (7.1 ml vs. 4.5 ml, p = 0.001). Frontal subarachnoid space volume was greater in infants with OP (27.5 ml vs. 0.6 ml in controls, p < 0.0001). Both the suprasellar and perimesencephalic cisterns were of greater caliber in the case group (p = 0.007 and p < 0.0001, respectively). No difference in ventricular size or occipital subarachnoid space volume was noted between groups. The extraventricular CSF spaces in neurologically unimpaired infants with OP are significantly larger than those in age- and sex-matched controls. Enlarged subarachnoid spaces may increase the compliance and malleability of the calvaria and sutures, predisposing to positional deformity. External hydrocephalus may be a fundamental etiological factor in OP.
The wrong side of the law (2008)

A new report from the Prison Reform Trust (see page 8) has identified a failure of leadership and direction across the criminal justice system that has resulted in vulnerable people facing ‘personal, systemic and routine’ discrimination from arrest through to release from prison. It will be no surprise to readers of Learning Disability Practice that this group includes significant numbers of people with learning disabilities. The report has found, among other things, that:
Digital forensics in the cloud era: The decline of passwords and the need for legal reform (2016)

The growing use of cloud services in the community means electronic evidence is moving beyond the physical jurisdiction of Australian law enforcement agencies. This paper looks at the legal and technical issues inherent in collecting electronic evidence from online and cloud services and the decline in use of stored passwords for apps in favour of authentication tokens. The most prevalent authentication token system, OAuth, is described and the utility of these tokens to forensic practitioners is discussed. The legal and technical aspects are considered, with a view to enhancing the capability of law enforcement and practitioners in an increasingly complex legislative and technical environment.
Real-time data reduction at the network edge of Internet-of-Things systems (2015)

The expected huge increase in the number of IoT data sources (sensors, embedded systems, personal devices etc.) will give rise to network-edge computing, i.e., data pre-processing, local storage, and filtering close to the data sources. Specifically, data reduction at the network edge (e.g., on an IoT gateway device or a mini-server deployed locally at an IoT area network) can prevent I/O bottlenecks, as well as dramatically reduce storage, bandwidth, and energy costs. However, current solutions face two main obstacles towards achieving this benefits of network-edge computing. Firstly, the most efficient algorithms for data reduction of time series (which is one of the prevailing kinds of data in IoT) are developed to work a posteriori upon big datasets and they cannot take decisions per incoming data item. Secondly, the state of the art lacks systems that can apply any of many different possible data reduction methods without adding significant delays or heavyweight re-configurations. This paper presents a solution that automates the switching between different data handling algorithms at the network edge, including an analysis of adjusted data reduction methods, as well as three flavors of a new algorithm that is capable of performing real-time reduction of incoming time series items based on the concept of Perceptually Important Points. The potential benefits are evaluated upon real datasets from street, household, and robot sensors, showing that our solution achieves accuracies between 76,1 % and 93,8 % despite forwarding only 1/3 of the data items, without adding significant forwarding delays.
Lifelong Learning: The Mission of Arts Education in the Learning Community of the 21st Century (1998)

Across the international arena governments, policy-makers and educators have been concentrating increasingly on the topic of Lifelong Learning. Recent publications from UNESCO, OECD, the APEC Forum, the European Parliament and the Nordic Council of Ministers have taken the theme of Learning: realising a lifelong approach for as their chief educational agendum over the next five to ten years. The reasons for this concentration are embodied in the Four Pillars of knowledge and skill on which UNESCO believes education in the 21st Century will have to stand. The Arts have a particularly powerful part to play in adapting to, and even leading the way, in embracing the challenges and changes inherent in the imperative for learning to be an activity engaged in throughout people's lives. This paper will draw upon research and critical reflection to argue for, and justify the importance and special role of the Arts in providing models of leadership for learners across all ages.
A novel ripple-based constant on-time control with virtual inductance and offset cancellation for DC power converters (2011)

In recent years, there has been a growing trend of mandating high power conversion efficiency, for both the heavy-load and the light-load conditions. To achieve this purpose, a ripple-based constant on-time (RBCOT) control for DC-DC converters has received wide attentions because of its natural characteristic of switching frequency reduction under light-load condition. However, a RBCOT converter suffers from output-voltage offset problem and sub-harmonic instability problem. In this paper, a modified RBCOT buck converter circuit will be proposed to solve both problems using the concept of virtual inductor current to stabilize the feedback and an offset cancellation circuit to cancel out the output DC offset. A control model based on describing function is also developed for the modified converter. From the model, it's found out that it's much easier to accomplish adaptive-voltage-positioning (AVP) using the proposed modified RBCOT scheme compared to a conventional constant-frequency controller. Simulation and experimental results are also given to verify the proposed scheme.
Solutions to Performance Problems in VoIP Over a 802.11 Wireless LAN (2005)

Voice over Internet Protocol (VoIP) over a wireless local area network (WLAN) is poised to become an important Internet application. However, two major technical problems that stand in the way are: 1) low VoIP capacity in WLAN and 2) unacceptable VoIP performance in the presence of coexisting traffic from other applications. With each VoIP stream typically requiring less than 10 kb/s, an 802.11b WLAN operated at 11 Mb/s could in principle support more than 500 VoIP sessions. In actuality, no more than a few sessions can be supported due to various protocol overheads (for GSM 6.10, it is about 12). This paper proposes and investigates a scheme that can improve the VoIP capacity by close to 100% without changing the standard 802.11 CSMA/CA protocol. In addition, we show that VoIP delay and loss performance in WLAN can be compromised severely in the presence of coexisting transmission-control protocol (TCP) traffic, even when the number of VoIP sessions is limited to half its potential capacity. A touted advantage of VoIP over traditional telephony is that it enables the creation of novel applications that integrate voice with data. The inability of VoIP and TCP traffic to coexist harmoniously over the WLAN poses a severe challenge to this vision. Fortunately, the problem can be largely solved by simple solutions that require only changes to the medium-access control (MAC) protocol at the access point. Specifically, in our proposed solutions, the MAC protocol at the wireless end stations does not need to be modified, making the solutions more readily deployable over the existing network infrastructure.
[Spinal endoscopy in the diagnosis of diseases of the spinal cord]. (1984)

A total of 112 patients with various diseases of the spinal cord were examined using spinal endoscopy. It is concluded on the basis of the findings obtained that this method is fairly reliable in detecting the pathological process in the cerebrospinal canal including secondary changes in its membranes and cerebrospinal radicals with the vessels attached to the latter which can develop in some forms of spinal diseases. While admitting the diagnostic significance of radioisotopic, roentgenocontrast and other methods of studying the spinal cord the authors consider spinal endoscopy to be fairly promising in terms of the topic and differential diagnosis of various disorders of the spinal cord, membranes and radicals which is crucial for early surgical of therapeutic management of the disease.
The Effects of a Newly Designed Air Mattress upon Sleep and Bed Climate. (1997)

In our previous study, an air mattress with three series of air cells with inflation pressure, that was increased/decreased in time interval of 20 min, did not affect sleep quality and quantity, although the relative and absolute humidity inside the bedding was kept significantly higher than that of a Futon. The purpose of this study was to confirm the effects of a newly designed air mattress upon sleep and bed climate. In this newly designed air mattress, the cell series and time interval was reduced. Six healthy female volunteers, aged 18-22, served as subjects. The experiment was carried out under two conditions: using a regular Futon (Futon), and a newly-designed air mattress with the timer and pump activated (Airmat). The room temperature and relative humidity were controlled at 22-23 degrees C and RH 50-60%, respectively. The subjects' sleep was monitored by using an EEG machine and their skin temperatures and bed climates were also measured continuously. Subjective evaluations of bed comfort and sleep were obtained before and after the recording sessions. Sleep onset latency, wake after sleep onset and the sleep efficiency index showed no significant differences between the two conditions. A significant difference was observed in the bed climate of the waist area. The temperature of the waist was lower overall under the Airmat than the Futon, while relative humidity was higher under the Airmat. Absolute humidity also tended to be higher in the Airmat. Sleep evaluation and comfort sensation were good under both conditions. Although sleep was not disturbed and subjective sleep evaluation tended to be better in Airmat, our results indicate that changing the time intervals and cell series until this air mattress level is not effective in decreasing the bed climate humidity.
P‐60: 3‐pair Intra‐panel Interface for 120Hz 3D Flat Panel Displays (2011)

Abstract A cost‐effective 3‐pair intra‐panel interface for flat panel displays is presented. By simply modifying the protocol of a conventional interface such as AiPi+, all video data from a TCON can be transferred to a column driver IC without any additional need to revise the interface physical layer. By adopting this interface, 64 wires are reduced to 48 wires for a 30‐bit color 120Hz 3D flat panel display device using 8 driver ICs.
Chemical Pharmacology of Calcium Antagonists (1982)

The comparative chemical pharmacology of a structurally diverse group of Ca2+ antagonists including verapamil/D600, diltiazem, nifedipine, cinnarizine, flunarizine and lidoflazine is reviewed. These agents, the Ca2+-channel antagonists or Ca2+ entry blockers, appear to function by blocking Ca2+ entry through defined Ca2+ channels of the plasma membrane. The existence of structure-activity relationships, particularly for the verapamil/D600 and the nifedipine 1,4-dihydropyridine series, including stereoselectivity of action in smooth and cardiac muscle preparations is consistent with specific loci of action. Although these loci remain to be defined much evidence, including the demonstration of specific binding of 3H-nitrendipine (a nifedipine analog) to smooth and cardiac muscle membranes, is indicative of a membrane site of action. Consistent with their chemical heterogeneity, the pharmacologic properties of these compounds are not uniform which suggests that a multiplicity of sites and mechanisms of action exist to impede Ca2+ entry. Of particular importance in this respect is the existence of tissue selectivity.
Binding of Duck Carboxypeptidase D to Duck Hepatitis B Virus (2004)

The initial step in viral infection is binding of the particle to a receptor on the host-cell surface. The specificity of this process is the outcome of an evolutionary adaptation of the pathogen to its host. Receptor recognition frequently determines host specificity and tissue tropism. For enveloped viruses, binding is followed by fusion of the virus membrane with either the plasma or an endosomal membrane. The general mechanism of membrane fusion involves conformational changes of virus-encoded fusion proteins, leading to physical approximation and finally merging of viral and cellular membranes. A detailed understanding of receptor binding and membrane fusion is not only of general interest for molecular virologists, it also provides the basis for therapeutics that interfere with infection.
Fingerprinting RFID Tags (2010)

Radio frequency identification (RFID) tags are low-cost devices that are used to uniquely identify the objects to which they are attached. Due to the low cost and small size that are driving the technology, a tag has limited computational capabilities and resources. These limitations constrain the use of conventional encryption algorithms and security protocols to prevent cloning and counterfeiting of an RFID tag. Therefore, we propose to create an electronic fingerprint of a tag based upon the physical attributes of the tag. We have fingerprinted RFID tags based upon their minimum power responses measured at multiple frequencies. The fingerprint can be used effectively to identify the tags in the future with high probability and to detect counterfeit tags. This mechanism does not increase the cost of the tag and can be applied to any existing tag, because it is independent of the computational capabilities and resources of the RFID tag.
Tune In or Tune Out: Age-Related Differences in Listening to Speech in Music (2008)

These findings reveal age-related differences in listening to speech in music. When older listeners are confronted with a music background they tend to focus attention on the speech foreground. In contrast, younger listeners attend to both the speech foreground and music background. When music is familiar, this strategy adopted by younger listeners seems to be beneficial to word identification.
YBCO Thin Films on&lt;tex&gt;$rm TiO_2$&lt;/tex&gt;Buffer Layer Deposited by RF Magnetron Sputtering (2005)

Rutile structure TiO/sub 2/ buffer layers and YBa/sub 2/Cu/sub 3/O/sub 7-x/ (YBCO) thin films have been deposited on (100) MgO substrates by RF magnetron sputtering. It was found that, high quality c-axis oriented YBCO thin films could be obtained on MgO with very thin [110] oriented rutile structure TiO/sub 2/ buffer layers. The crystal structure of TiO/sub 2/ thin films changed from (100) oriented anatase structure TiO/sub 2/ to [110] oriented rutile structure TiO/sub 2/ with increasing substrate temperature. The [110] oriented rutile structure TiO/sub 2/ thin films deposited with the optimal deposition condition had smooth surfaces. YBCO thin films on [110] oriented rutile structure TiO/sub 2/ buffer layers had better crystallinity and surface flatness than YBCO thin films deposited on bare MgO substrates.
Surgical Management of Posterior Fossa Mass Lesions (2006)

Suboccipital craniectomy is the predominant method reported for evacuation of posterior fossa mass lesions, and is therefore recommended.
Influence of Lansoprazole on Intragastric 24-Hour pH, Meal-Stimulated Gastric Acid Secretion, and Concentrations of Gastrointestinal Hormones and Enzymes in Serum and Gastric Juice in Healthy Volunteers (1995)

Twelve healthy volunteers (6 females, 6 males) between 26 and 36 years of age were enroled in this double-blind, randomized, placebo-controlled, three-way cross-over study. The objective was to determine the influence of lansoprazole (Agopton, Takeda Pharma GmbH, Aachen), a novel proton pump inhibitor, in doses of 30 and 60 mg, on the intragastric pH, on meal-stimulated gastric acid secretion and on the concentration of gastrointestinal hormones and enzymes in serum and gastric juice. Active drug or placebo had to be taken as single daily morning doses on an empty stomach for 7 days. Each wash-out period between drug application periods was 2 weeks long. Lansoprazole induced a dose-related increase in intragastric pH as well as a relevant reduction of basal acid output, meal-stimulated acid output and meal-stimulated secretion volume. 60 mg lansoprazole was significantly superior to 30 mg in increasing intragastric pH. The basal secretion volume in volunteers on 30 and 60 mg lansoprazole were lower than in volunteers on placebo. Serum gastrin and serum pepsinogen concentrations increased in a dose-dependent manner. Pepsin output and pepsin activity in gastric juice were slightly decreased in volunteers on 30 mg lansoprazole and markedly suppressed in volunteers on 60 mg lansoprazole 2 h after meal stimulation. Intrinsic factor concentration increased in volunteers on lansoprazole with a clear dose relationship. The evaluation of laboratory data and reported nonserious adverse events proved the relative safety of this new antiulcer agent.
Imaging in Transcatheter Aortic Valve Replacement (TAVR): role of the radiologist (2014)

• TAVR is a new technique to treat severe aortic stenosis in high-risk and nonsurgical candidates. • MDCT assessment of the aortic annulus is important for appropriate patient and device selection. • Multidisciplinary approach is required for patient selection, procedure planning and performance. • MDCT is required for assessment of the aortic root, iliofemoral or alternative vascular pathway.