LLukas22/scidocs huggingface dataset:
Development of a Student Attendance Management System Using RFID and Face Recognition : A Review

Abstract: Whole world and administrators of Educational institutions’ in our country are concerned about regularity of student attendance. Student’s overall academic performance is affected by the student’s present in his institute. Mainly there are two conventional methods for attendance taking and they are by calling student nams or by taking student sign on paper. They both were more time consuming and inefficient. Hence, there is a requirement of computer-based student attendance management system which will assist the faculty for maintaining attendance of presence. The paper reviews various computerized attendance management system. In this paper basic problem of student attendance management is defined which is traditionally taken manually by faculty. One alternative to make student attendance system automatic is provided by Computer Vision. In this paper we review the various computerized system which is being developed by using different techniques. Based on this review a new approach for student attendance recording and management is proposed to be used for various colleges or academic institutes.
ACTORS - a model of concurrent computation in distributed systems

Gul A. Agha’s Actors: A Model of Concurrent Computation in Distributed Systems (The MIT Press, Cambridge, Mass., 1987, 144 pages, $25.00, ISBN O-262 010925) is part of the MIT Press Series in Artificial Intelligence. This volume is edited by Patrick Winston, Michael Brady, and Daniel Bobrow. In the actor formalism, pioneered by Carl Hewitt (1977), one perceives abstract computational agents, called actors, that are distributed in space. Each actor has a mailbox (and a mail address) and associated with each actor is a behavior. One actor can influence the actions of another actor only by sending it a communication. An actor can send another actor a communication only when it knows the address of the second actor. An actor can (should be able to) receive more than one message simultaneously (in some sense). In case of synchronous communication in nonactor paradigms, this simultaneous communication requires the sender to wait until the recipient of the communication is ready to accept it. Once the recipient starts processing a given communication, it is blocked from accepting any other messages until after it is done with the message-all for the sake of maintaining the integrity of communications, no doubt. The actor model achieves the same effect through buffering. A recipient’s mailbox is always ready to receive messages. Furthermore, in the actor framework, there are no restrictions on freely communicating mail addresses; thus, the interconnections of the actors can be dynamically modified, and resource management is more flexibly done. Should the reader begin pondering the difference between actors and objects (as found in object-oriented programming), I would like to make a few clarifying observations. Objects
The Heidelberg Conference: Setting an agenda for the IMIA working group on Health Information Systems

In April 2002, the International Medical Informatics Association (IMIA) Working Group on Health Information Systems (HIS) held its fourth working conference in Heidelberg, Germany. After a predecessor conference in Capetown 1979, this Working Group was officially founded as IMIA WG 10, Hospital Information Systems, in 1983 [1]. It was amalgamated with the IMIA Working Group on Health Professional Workstations in 1996. In 2001, the WG changed its name to ‘‘Health Information Systems’’. We will refer to it as HIS Working Group in the following. During Medinfo 2001 in London, the Scientific Program Committee for the 2002 Working Conference met. M.J. Ball, A.R. Bakker, P. Degoulet, D.A. Giuse, and K.A. Kuhn chose five tracks to be elaborated and discussed in Heidelberg.
A systematic review of patient-reported outcome instruments of nonmelanoma skin cancer in the dermatologic population.

BACKGROUND
Treatment of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) has traditionally focused on minimizing recurrence and complication rates. However, the assessment of patient satisfaction and quality of life (QOL) is also important. These outcomes are best assessed by patient-reported outcome (PRO) instruments.


OBJECTIVES
We sought to conduct a systematic review of published PRO instruments purporting to measure aspects associated with QOL and/or patient satisfaction in the dermatologic BCC/SCC population and evaluate their development, content, and psychometric properties.


METHODS
PubMed, Embase, Cochrane via Wiley, PsycINFO, CINAHL, and HaPI from inception to April 2011 were searched. Articles that discussed the instrument development and validation process were included.


RESULTS
A total of 2212 articles were identified. Twenty met our inclusion criteria resulting in 6 PRO instruments: 3 general dermatology (Skindex, Dermatology Life Quality Index, dermatology quality of life scales), 1 general plastic surgery (Patient Outcomes of Surgery-Head/Neck), and 2 skin cancer-specific (Skin Cancer Index, disease-specific questionnaire). The 6 instruments all underwent some degree of formal development and validation, however, only the Skin Cancer Index was developed and validated in the BCC/SCC population.


LIMITATIONS
The review may not have included all relevant PRO instruments.


CONCLUSIONS
The Skin Cancer Index demonstrates the most evidence of its usefulness in patients with BCC/SCC. The Skindex-16, Dermatology QOL Scales, and Dermatology Life Quality Index target different aspects of QOL and should be used depending on the specific question being investigated. The Patient Outcomes of Surgery-Head/Neck may be beneficial to assess perceptions in appearance before and after surgical intervention.
Bidirectional Texture Function Modeling: A State of the Art Survey

An ever-growing number of real-world computer vision applications require classification, segmentation, retrieval, or realistic rendering of genuine materials. However, the appearance of real materials dramatically changes with illumination and viewing variations. Thus, the only reliable representation of material visual properties requires capturing of its reflectance in as wide range of light and camera position combinations as possible. This is a principle of the recent most advanced texture representation, the bidirectional texture function (BTF). Multispectral BTF is a seven-dimensional function that depends on view and illumination directions as well as on planar texture coordinates. BTF is typically obtained by measurement of thousands of images covering many combinations of illumination and viewing angles. However, the large size of such measurements has prohibited their practical exploitation in any sensible application until recently. During the last few years, the first BTF measurement, compression, modeling, and rendering methods have emerged. In this paper, we categorize, critically survey, and psychophysically compare such approaches, which were published in this newly arising and important computer vision and graphics area.
Data transmission through energy coil of wireless power transfer system

The data communication always needs to be implemented in application of the Wireless Power Transfer (WPT) technology. However, there are also some problems need to be dealt with in practical applications. For example, the interference between power transfer and communication is serious, when the power and data are transmitted through the same coupling coil. A simple design is presented to implement bidirectional communication through the power transmission channel in this paper. The main idea is that the high-frequency signal can be sent via a single antenna. The power is transferred in the frequency range of 20 KHz to 100 KHz, the data is transferred by employing carrier at around 10MHz. The interference between the two function is analyzed. In order to demonstrate the effectiveness of the proposal, a hardware experiment prototype platform is built up in the project. In the experiment, the transmission gap distance is 10mm, the power transfer is reached 30W, and the data transmission rate is capable of up to 80 Kbps.
FoCs: Automatic Generation of Simulation Checkers from Formal Specifications

For the foreseeable future, industrial hardware design will continue to use both simulation and model checking in the design verification process. To date, these techniques are applied in isolation using different tools and methodologies, and different formulations of the problem. This results in cumulative high cost and little (if any) cross-leverage of the individual advantages of simulation and formal verification. With the goal of effectively and advantageously exploiting the co-existence of simulation and model checking, we have developed a tool called FoCs (”Formal Checkers”). FoCs, implemented as an independent component of the RuleBase toolset, takes RCTL1 properties as input and translates them into VHDL programs (”checkers”) which are integrated into the simulation environment and monitor simulation on a cycle-by-cycle basis for violations of the property. Checkers, also called Functional Checkers, are not a new concept: manuallywritten checkers are a traditional part of simulation environments (cf. [GB+99]). Checkers facilitate massive random testing, because they automate test results analysis. Moreover, checkers facilitate the analysis of intermediate results, and therefore save debugging effort by identifying problems directly ”as they happen”, and by pointing more accurately to the source of the problems. However, the manual writing and maintenance of checkers is a notoriously high-cost and labor-intensive effort, especially if the properties to be verified are complex temporal ones. For instance, in the case of a checker for a design with overlapping transactions (explained in Section 3), writing a checker manually is an excruciating error-prone effort. Observing the inefficient process of manual checker writing in ongoing IBM projects has inspired the development of FoCs, as a means for automatically generating checkers from formal specifications. For each property of the specification, represented as an RCTL formula, FoCs generates a checker for simulation. This checker essentially implements a state machine which will enter an error
Automatic Roof Plane Detection and Analysis in Airborne Lidar Point Clouds for Solar Potential Assessment

A relative height threshold is defined to separate potential roof points from the point cloud, followed by a segmentation of these points into homogeneous areas fulfilling the defined constraints of roof planes. The normal vector of each laser point is an excellent feature to decompose the point cloud into segments describing planar patches. An object-based error assessment is performed to determine the accuracy of the presented classification. It results in 94.4% completeness and 88.4% correctness. Once all roof planes are detected in the 3D point cloud, solar potential analysis is performed for each point. Shadowing effects of nearby objects are taken into account by calculating the horizon of each point within the point cloud. Effects of cloud cover are also considered by using data from a nearby meteorological station. As a result the annual sum of the direct and diffuse radiation for each roof plane is derived. The presented method uses the full 3D information for both feature extraction and solar potential analysis, which offers a number of new applications in fields where natural processes are influenced by the incoming solar radiation (e.g., evapotranspiration, distribution of permafrost). The presented method detected fully automatically a subset of 809 out of 1,071 roof planes where the arithmetic mean of the annual incoming solar radiation is more than 700 kWh/m(2).
Complications associated with implant migration into the maxillary sinus cavity.

BACKGROUND
Migration of dental implants into the maxillary sinus is an uncommon, but increasingly reported complication. Implant migration may result from initial lack of primary stability, intrasinusal and nasal pressure changes, autoimmune reaction to the implant or incorrect distribution of occlusal forces. This retrospective study aims at analyzing the factors that may influence implant migration into the maxillary sinus cavity.


MATERIAL AND METHODS
Fourteen patients presenting a total 15 implants that migrated into the maxillary sinus were recruited. Diagnosis of this complication was based on imaging techniques, such as cone beam computerized tomography scan and panoramic radiography. Clinical data were recorded in all cases and processed for statistical analysis.


RESULTS
ABH was below 6 mm in the majority of cases. However, almost 50% of the patients did not receive any site preparation treatment prior to implant insertion. Five patients (33.3%) were treated by osteotome techniques, but only one of them had bone grafting. Therefore, 73.3% of sites did not receive any biomaterial to increase available bone height. The most common complication-associated factors found on this study were related to implant design (cylindrical), implant dimension (diameter), implant restoration/rehabilitation method (partial removable denture), site-specific anatomy (initial residual bone height between 5 and 6.9 mm), demographics (age), and biomaterials.


CONCLUSION
Patient selection and proper treatment planning, as well as the application of the appropriate sinus augmentation technique, are critical aspects that should be controlled to minimize the risk of implant migration into the maxillary sinus cavity.
[Effects and adequacy of high-fidelity simulation-based training for obstetrical nursing].

PURPOSE
Clinical training for nursing students is limited to rudimentary skills to avoid potential risks. Simulation-Based Training (SBT) can overcome the shortcomings of clinical training. We evaluated the educational effect of SBT for obstetrical nursing students using high-fidelity simulation courses.


METHODS
We developed a simulation program for obstetrical nursing students to practice nursing skills that are necessary to provide quality care. The program consisted of four sessions. 1st: An orientation and a preliminary test. 2nd: Learning core skills required in obstetrical nursing. 3rd: Testing each student with scenario. 4th: Providing a debriefing session. At the beginning of the program, students were surveyed about their self-confidence in obstetrical nursing care, and at the end of the program, they were surveyed about the adequacy of SBT as well as self-confidence.


RESULTS
Students' self-confidence showed a significant difference before and after simulation. Mean adequacy of SBT was 7.15±1.35 (out of 10). Most students became more interested in Women's Health Nursing after SBT.


CONCLUSION
The results from evaluating the effects of simulation-based obstetrical nursing training show that SBT provides invaluable clinical experience for obstetrical nursing students by overcoming the lack of actual clinical involvement in clinical training programs.
The economics of free internet access

ABSTRACT In this paper, we argue that the role of the Dutch State has been (a) significant in the spread of management knowledge in the Dutch management community but (b) changed dramatically during the nineteen eighties. After the World War II, the Dutch government played an important role in the development of an institutionalized network to spread management knowledge through the management community. The government stimulated the introduction of new ideas by assisting in the development of different new institutions. In the nineteen eighties, however, the position of the government changed dramatically. Its role as distributor of knowledge disappeared almost completely and was taken over by consulting agencies, commercial publisher, and conference organizers. Besides the decreasing role as distributor, the government also changed its own interest. More and more, government agencies started to use management knowledge themselves and turned into one of the largest users in the Netherlands.
Right-handed neutrinos as the dark radiation: Status and forecasts for the LHC

Luis A. Anchordoqui, Haim Goldberg, and Gary Steigman 4, 5 Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI 53201 Department of Physics, Northeastern University, Boston, MA 02115 Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, OH 43210 Department of Physics, Ohio State University, Columbus, OH 43210 Department of Astronomy, Ohio State University, Columbus, OH 43210 (Dated: November 2012)
Is determination between complete and incomplete traumatic spinal cord injury clinically relevant? Validation of the ASIA sacral sparing criteria in a prospective cohort of 432 patients

Study design:Prospective multicenter longitudinal cohort study.Objective:To validate the prognostic value of the acute phase sacral sparing measurements with regard to chronic phase-independent ambulation in patients with traumatic spinal cord injury (SCI).Setting:European Multicenter Study of Human Spinal Cord Injury (EM-SCI).Methods:In 432 patients, acute phase (0–15 days) American Spinal Injury Association (ASIA)/International Spinal Cord Society neurological standard scale (AIS) grades, ASIA sacral sparing measurements, which are S4–5 light touch (LT), S4–5 pin prick (PP), anal sensation and voluntary anal contraction; and chronic phase (6 or 12 months) indoor mobility Spinal Cord Independence Measure (SCIM) measurements were analyzed. Calculations of positive and negative predictive values (PPV/NPV) as well as univariate and multivariate logistic regressions were performed in all four sacral sparing criteria. The area under the receiver-operating characteristic curve (AUC) ratios of all regression equations was calculated.Results:To achieve independent ambulation 1-year post injury, a normal S4–5 PP score showed the best PPV (96.5%, P<0.001, 95% confidence interval (95% CI): 87.9–99.6). Best NPV was reported in the S4–5 LT score (91.7%, P<0.001, 95% CI: 81.6–97.2). The use of the combination of only voluntary anal contraction and the S4–5 LT and PP sensory scores (AUC: 0.906, P<0.001, 95% CI: 0.871–0.941) showed significantly better (P<0.001, 95% CI: 0.038–0.128) discriminating results in prognosticating 1-year independent ambulation than with the use of currently used distinction between complete and incomplete SCI (AUC: 0.823, P<0.001, 95% CI: 0.781–0.864).Conclusions:Out of the four sacral sparing criteria, the acute phase anal sensory score measurements do not contribute significantly to the prognosis of independent ambulation. The combination of the acute phase voluntary anal contraction and the S4–5 LT and PP scores, predicts significantly better chronic phase-independent ambulation outcomes than the currently used distinction between complete and incomplete SCI.Sponsorship:This study was granted by ‘Acute Zorgregio Oost’ and the ‘Internationale Stiftung für Forschung in Paraplegie (IFP)’.
Sexual function after childbirth by the mode of delivery: a prospective study

The objective of the present study was to evaluate sexual behavior longitudinally in the postpartum period by mode of delivery. In this prospective study, five groups were defined: women who delivered vaginally without an episiotomy (n = 16), women who delivered vaginally with an episiotomy (n = 14), women who delivered by instrumental delivery (n = 16), women who delivered by an emergent cesarean section (n = 19), and women who delivered by an elective cesarean section (n = 17). Sexual behavior was assessed by the female sexual function index (FSFI) questionnaire at 6, 12, and 24 weeks postpartum and by the timing of resumption of sexual intercourse. The mean ± SD self-reported timing of resumption of sexual activity was 4.5 ± 1.8, 7.9 ± 3.0, 7.3 ± 3.4, 6.1 ± 2.6, and 6.1 ± 2.4 weeks in the vaginal delivery without an episiotomy group, in the vaginal delivery with an episiotomy group, in the instrumental delivery group, in the elective cesarean delivery group, and in the emergent cesarean delivery group, respectively (p = 0.013). The FSFI total score in the entire study group (n = 82) was 14.1 ± 10.8, 24.6 ± 7.6, and 27.7 ± 5.1 at 6, 12, and 24 weeks postpartum, respectively (p < 0.05). The FSFI total score did not differ significantly across types of mode of delivery at 6, 12, or 24 weeks postpartum. The significance by delivery mode difference in the postpartum resumption of sexual activity was not accompanied by difference in sexual function scores. Specifically, elective cesarean delivery was not associated with a protective effect on sexual function after childbirth.
Omega-3 fatty acids in cancer.

PURPOSE OF REVIEW
Significant achievements have been obtained in cancer treatment, but the clinical relevance of drug approach in daily practice remains questionable due to the high costs, limited efficacy, and negligible influence on quality of life. A new concept is emerging which is based on the early combination of chemotherapy and nutrition therapy.


RECENT FINDINGS
Inflammation dictates tumour initiation, progression and growth. Omega-3 fatty acids exert anti-inflammatory effects, and therefore recent studies investigated their role in cancer prevention, in cancer cachexia treatment and in enhancement of antitumour therapies. Limited evidence suggests a role for omega-3 fatty acid supplementation in cancer prevention, but they have been shown to preserve muscle mass and function in cancer patients even during active treatment. During chemotherapy, omega-3 fatty acids may contribute to a reduced inflammatory response, but whether cancer treatment toxicity can be prevented remains to be assessed. Finally, small studies showed that omega-3 fatty acids increase response rate to chemotherapy.


SUMMARY
Combination of chemotherapy and omega-3 supplementation appears an effective strategy to enhance the clinical outcome of cancer patients in their curative and palliative clinical trajectory.
Fine-grained power modeling for smartphones using system call tracing

Accurate, fine-grained online energy estimation and accounting of mobile devices such as smartphones is of critical importance to understanding and debugging the energy consumption of mobile applications. We observe that state-of-the-art, utilization-based power modeling correlates the (actual) utilization of a hardware component with its power state, and hence is insufficient in capturing several power behavior not directly related to the component utilization in modern smartphones. Such behavior arise due to various low level power optimizations programmed in the device drivers. We propose a new, system-call-based power modeling approach which gracefully encompasses both utilization-based and non-utilization-based power behavior. We present the detailed design of such a power modeling scheme and its implementation on Android and Windows Mobile. Our experimental results using a diverse set of applications confirm that the new model significantly improves the fine-grained as well as whole-application energy consumption accuracy. We further demonstrate fine-grained energy accounting enabled by such a fined-grained power model, via amanually implemented eprof, the energy counterpart of the classic gprof tool, for profiling application energy drain.