LLukas22/scidocs huggingface dataset:
Periodogram Spectrum Sensing Using Blackman Tukey Method in Matlab

Wireless communication is the fastest growing industry from many aspects. Increasing number of users imposes bandwidth constraints on the communication system. Cognitive Radio (CR) finds the solution to this problem and uses the free portion of the spectrum. Energy based spectrum sensing is the simplest way and in frequency domain it can be performed by using Periodogram based spectrum sensing. In this paper we describe Periodogram spectrum sensing technique using Blackman Tukey method. Probability of detection and false alarm are figure of merits for the analysis of this technique. Moreover the simulation results are carried out using different channel taps, varying channel lengths and with the help of different windowing functions using MATLAB.
Randomised controlled trial of cognitive-behavioural therapy in early schizophrenia: acute-phase outcomes.

BACKGROUND
Cognitive-behavioural therapy (CBT) improves persistent psychotic symptoms.


AIMS
To test the effectiveness of added CBT in accelerating remission from acute psychotic symptoms in early schizophrenia.


METHOD
A 5-week CBT programme plus routine care was compared with supportive counselling plus routine care and routine care alone in a multi-centre trial randomising 315 people with DSM-IV schizophrenia and related disorders in their first (83%) or second acute admission. Outcome assessments were blinded.


RESULTS
Linear regression over 70 days showed predicted trends towards faster improvement in the CBT group. Uncorrected univariate comparisons showed significant benefits at 4 but not 6 weeks for CBT v. routine care alone on Positive and Negative Syndrome Scale total and positive sub-scale scores and delusion score and benefits v. supportive counselling for auditory hallucinations score.


CONCLUSIONS
CBT shows transient advantages over routine care alone or supportive counselling in speeding remission from acute symptoms in early schizophrenia.
TextProposals: a Text-specific Selective Search Algorithm for Word Spotting in the Wild

Motivated by the success of powerful while expensive techniques to recognize words in a holistic way [1, 2, 3], object proposals techniques emerge as an alternative to the traditional text detectors. In this paper we introduce a novel object proposals method that is specifically designed for text. We rely on a similarity based region grouping algorithm that generates a hierarchy of word hypotheses. Over the nodes of this hierarchy it is possible to apply a holistic word recognition method in an efficient way. Our experiments demonstrate that the presented method is superior in its ability of producing good quality word proposals when compared with class-independent algorithms. We show impressive recall rates with a few thousand proposals in different standard benchmarks, including focused or incidental text datasets, and multi-language scenarios. Moreover, the combination of our object proposals with existing whole-word recognizers [2, 3] shows competitive performance in end-to-end word spotting, and, in some benchmarks, outperforms previously published results. Concretely, in the challenging ICDAR2015 Incidental Text dataset, we overcome in more than 10 percent f-score the best-performing method in the last ICDAR Robust Preprint submitted to Pattern Recognition February 2, 2017 ar X iv :1 60 4. 02 61 9v 3 [ cs .C V ] 1 F eb 2 01 7 Reading Competition [4]. Source code of the complete end-to-end system is available at https://github.com/lluisgomez/TextProposals.
Fusing vision and LIDAR - Synchronization, correction and occlusion reasoning

Autonomous navigation in unstructured environments like forest or country roads with dynamic objects remains a challenging task, particularly with respect to the perception of the environment using multiple different sensors.
Churchill: Myth and Imperialist History

Review of Churchill by Clive Ponting. This article can also be found at the Monthly Review website , where most recent articles are published in full. Click here to purchase a PDF version of this article at the Monthly Review website.
Experimental Investigation of Performance of Diesel Engine Working On Diesel and Neem Oil Blends

The depletion of oil resources as well as the environmental regulation has led to the development of alternate energy sources. In this present work the performance characteristics of a single cylinder diesel engine when fulled with blends of neem oil and diesel are evaluated. Experiments were conducted with different blends (B10&B20) of neem oil and diesel as various loads. The results show that the brake thermal efficiency of diesel is slightly higher at all loads followed by blends of neem oil and diesel, it has been established that 20% of neem oil biodiesel can be use as a substitute for diesel without any engine modification thus neem oil as non-edible oil can be a good renewable raw material for biodiesel production. Keywordsalternate fuels, blends, neem oil, performance, transesterification.
Topical mitomycin C chemotherapy for conjunctival melanoma and PAM with atypia.

AIM
To evaluate topical mitomycin C (MMC) chemotherapy in the treatment of conjunctival melanoma and primary acquired melanosis with atypia.


METHODS
In a phase I clinical trial, 10 patients with conjunctival melanoma and/or primary acquired melanosis with atypia were treated with topical MMC 0.04% four times daily. Four patients were given MMC for 28 days as a primary treatment. Six patients were treated with MMC for 7 days after excision and cryotherapy in an effort to improve local control. In this series, 10 patients have been followed for an average of 29 months.


RESULTS
All patients were noted to develop transient keratoconjunctivitis during treatment. One patient also developed a transient corneal epithelial defect. Decreased conjunctival pigmentation was noted in the four patients where topical chemotherapy was used as a primary treatment. Nodular tumours were resistant to topical MMC chemotherapy. Of the six patients treated within 2 weeks after primary excision and cryotherapy, there has been no tumour recurrence or symblepharon formation. Nine of the 10 study patients have maintained within one line of their pretreatment visual acuity. No retinal or optic nerve toxicity was noted.


CONCLUSION
Since no complications which might preclude further investigation of topical MMC chemotherapy occurred, it was concluded that topical MMC chemotherapy was tolerated as a treatment for conjunctival melanoma and primary acquired melanosis with atypia.
Augmentation blepharoplasty: a review of 500 consecutive patients.

BACKGROUND
Volume loss in the upper and lower eyelids and in the malar area is now considered a major component of periorbital aging. As classical resection blepharoplasty does not address this loss, filling procedures are becoming increasingly common.


OBJECTIVES
The authors present their experience with periorbital fat grafting in conjunction with routine blepharoplasty to address periorbital aging.


METHODS
Outcomes were retrospectively reviewed for 500 consecutive patients who underwent blepharoplasty in conjunction with the authors' periorbital augmentation technique from January 2008 to September 2011. The augmentation technique was a fine particle fat (microfat) grafting procedure that involved the use of small-diameter cannulae for transfer of autologous fat to the medial part of the upper eyelid, the orbitomalar groove, and the malar area.


RESULTS
Clinical evaluation and review of patient photographs revealed favorable, natural-looking, and long-lasting improvement of the treated areas. Shortcomings of classical resection blepharoplasty, such as hollowing of the upper eyelids, incomplete blending of the eyelid-cheek junction, and persistent deflation of the midface, were avoided; the full and crisp aspect of the upper and lower eyelids seen at a younger age was regained; and the technique was not associated with the complications seen in an earlier patient series. No major complications occurred. Minor complications included bruising and swelling.


CONCLUSIONS
Augmentation of the upper and lower eyelids through microfat grafting can be a useful alternative to existing blepharoplasty techniques. This study documents very natural and pleasing results that avoid the shortcomings of classical resection. Microfat grafting appears to be a valuable and safe alternative to complicated, difficult, and potentially dangerous eyelid and midface rejuvenation techniques.
Protection Motivation Theory, Task-Technology Fit and the Adoption of Personal Health Records by Chronic Care Patients: The Role of Educational Interventions

With the increasing prevalence of chronic disease throughout the world, Personal Health Records (PHRs) have been suggested as a way to improve chronic disease self-management. However, PHRs are not yet widely used by consumers. Protection Motivation Theory (PMT) has been successfully utilized to explain health related behaviors among chronic care patients. In addition, several Information Systems (IS) theories have been successfully used to explain technology adoption. This study combines PMT with IS theory to propose a research model to aid in the understanding of PHR adoption by chronic care patients. The role of educational interventions on various elements of the proposed model is also examined. We outline a survey-based study to empirically validate the proposed model using structural equation modeling techniques.
Proximity of the mandibular molar root apex from the buccal bone surface: a cone-beam computed tomographic study

OBJECTIVES
The purpose of this study was to evaluate the proximity of the mandibular molar apex to the buccal bone surface in order to provide anatomic information for apical surgery.


MATERIALS AND METHODS
Cone-beam computed tomography (CBCT) images of 127 mandibular first molars and 153 mandibular second molars were analyzed from 160 patients' records. The distance was measured from the buccal bone surface to the root apex and the apical 3.0 mm on the cross-sectional view of CBCT.


RESULTS
The second molar apex and apical 3 mm were located significantly deeper relative to the buccal bone surface compared with the first molar (p < 0.01). For the mandibular second molars, the distance from the buccal bone surface to the root apex was significantly shorter in patients over 70 years of age (p < 0.05). Furthermore, this distance was significantly shorter when the first molar was missing compared to nonmissing cases (p < 0.05). For the mandibular first molars, the distance to the distal root apex of one distal-rooted tooth was significantly greater than the distance to the disto-buccal root apex (p < 0.01). In mandibular second molar, the distance to the apex of C-shaped roots was significantly greater than the distance to the mesial root apex of non-C-shaped roots (p < 0.01).


CONCLUSIONS
For apical surgery in mandibular molars, the distance from the buccal bone surface to the apex and apical 3 mm is significantly affected by the location, patient age, an adjacent missing anterior tooth, and root configuration.
Appendiceal Mucocele and Pseudomyxoma Peritonei; The Clinical Boundaries of a Subtle Disease

PATIENT
Male, 70 • Male, 84.


FINAL DIAGNOSIS
Appendiceal mucocele and pseudomyxoma peritonei.


SYMPTOMS
-.


MEDICATION
-.


CLINICAL PROCEDURE
-.


SPECIALTY
Surgery.


OBJECTIVE
Rare disease.


BACKGROUND
Mucocele of the appendix is an uncommon cystic lesion characterized by distension of the appendiceal lumen with mucus. Most commonly, it is the result of epithelial proliferation, but it can also be caused by inflammation or obstruction of the appendix. When an underlying mucinous cystadenocarcinoma exists, spontaneous or iatrogenic rupture of the mucocele can lead to mucinous intraperitoneal ascites, a syndrome known as pseudomyxoma peritonei.


CASE REPORT
We report 2 cases that represent the clinical extremities of this heterogeneous disease; an asymptomatic mucocele of the appendix in a 70-year-old female and a case of pseudomyxoma peritonei in an 84-year-old male. Subsequently, we review the current literature focusing to the optimal management of both conditions.


CONCLUSIONS
Mucocele of the appendix is a rare disease, usually diagnosed on histopathologic examination of appendectomized specimens. Due to the existing potential for malignant transformation and pseudomyxoma peritonei caused by rupture of the mucocele, extensive preoperative evaluation and thorough intraoperative gastrointestinal and peritoneal examination is required.
Active object recognition by view integration and reinforcement learning

A mobile agent with the task to classify its sensor pattern has to cope with ambiguous information. Active recognition of three-dimensional objects involves the observer in a search for discriminative evidence, e.g., by change of its viewpoint. This paper defines the recognition process as a sequential decision problem with the objective to disambiguate initial object hypotheses. Reinforcement learning provides then an efficient method to autonomously develop near-optimal decision strategies in terms of sensorimotor mappings. The proposed system learns object models from visual appearance and uses a radial basis function (RBF) network for a probabilistic interpretation of the two-dimensional views. The information gain in fusing successive object hypotheses provides a utility measure to reinforce actions leading to discriminative viewpoints. The system is verified in experiments with 16 objects and two degrees of freedom in sensor motion. Crucial improvements in performance are gained using the learned in contrast to random camera placements. © 2000 Elsevier Science B.V. All rights reserved.
Opinion: Projecting the effects of environmental change on Antarctic seals

We consider how Antarctic seals may respond to changes in climate, realizing that anthropogenic alteration of food webs will influence these responses. The species considered include the ice-obligate crabeater (Lobodon carcinophaga), Weddell (Leptonychotes weddellii), Ross (Ommataphoca rossii) and leopard (Hydrurga leptonyx) seal and the ice-tolerant Antarctic fur seal (Arctocephalus gazella) and southern elephant seal (Mirounga leonina). The data analysed are from long-term censuses of Weddell seals in McMurdo Sound (1997–2006), and of Weddell, fur and elephant seals at Arthur Harbour, Antarctic Peninsula (1974–2005). After considering their responses to recent changes in environmental features, as well as projected and current changes to their habitat our conclusions are that the distribution and abundance of 1) crabeater and Weddell seals will be negatively affected by changes in the extent, persistence and type of annual sea ice, 2) Ross and leopard seal will be the least negatively influenced by changes in pack ice characteristics, although, as may be the case for crabeater and Weddell, population size and distribution may be altered through changes in food web dynamics, and 3) southern elephant and fur seals will respond in ways opposite to the pack ice species, but could also be influenced most immediately by changes in their food resources due to factors other than climate. Received 14 June 2007, accepted 4 February 2008
[Patient education: state of the art of the programs in the region of Provence-Alpes-Côte d'Azur in 2008 before the publication of official documents relative to the authorizations of the Regional Health Agency (ARS)].

BACKGROUND
At the request of the Hospitalization Regional Agency (ARH)--in the context of the 2007-2011 plan aimed at improving the quality of life for patients affected by chronic diseases--the purpose of this work was to draw up a clear assessment of the 2008 Therapeutic Education programmes in the Provence-Alpes-Côte d'Azur (PACA) region. The study was carried out before the publication of the therapeutic education statutory orders and ARS (regional health agency) authorizations.


METHODS
Cross-sectional study, carried out in the three sectors of medical management in the region--namely health-care institutions, ambulatory structures and health networks--made it possible to identify, first, which structures had actually launched therapeutic education programmes and then, how the procedures had been designed and set up.


RESULTS
Among all the medical structures investigated, the study has listed 491 programmes, heterogeneously located throughout the PACA region. These programmes primarily target diabetes, respiratory and cardiovascular diseases. Their main objectives are the patients' quality of life, adherence to treatment and protective health behaviour (health improvement). The hospitalization sector programmes preferentially target the 30 to 60 years old, whereas the ambulatory and health networks programmes are more inclined to target the over 60 years old part of the population. More than 50% of the professionals involved in the programmes have never benefited from a specific training concerning the patients' therapeutic education.


CONCLUSION
This study has pointed out a great number of important aspects which need drastic improvement in terms of therapeutic education organization - the involvement and training of health professionals, for instance.
Overweight and obesity in the eastern province of Saudi Arabia.

OBJECTIVE
To describe anthropometric characteristics of participants and the influence of sociodemographic and cardiovascular risk factors involved in the prevalence of obesity in the eastern province of Saudi Arabia.


METHODS
In the year 2004, all Saudi residents in the Eastern province aged 30 years and above, were invited to participate in a community screening campaign for early detection of diabetes and hypertension. Demographic data, medical history, life habits, weight, height, blood pressure, and glucose concentration were recorded using a structured questionnaire. Obesity and overweight were defined by body mass index (BMI) >or=30 kg/m2 and 25-29.9 kg/m2, respectively. Logistic regression was used to predict the association of the significant factors with the prevalence of obesity.


RESULTS
Out of 195,874 participants, the overall prevalence of obesity was 43.8%, while 35.1% were overweight. The prevalence of underweight was 1.3%. The peak prevalence of obesity was observed in the age group 50-59 years. Obesity was higher among women than men, higher in housewives, and among the less educated than others (p<0.0001). Linear regression analysis showed a strong proportional association of BMI with diabetes, hypertension, triglycerides and cholesterol, and an inverse proportional association with physical activity and smoking


CONCLUSION
Obesity and overweight constitute an important health problem affecting a high proportion of Saudi population. Addressing associated factors, and enhancing public health education is an important aim to focus on for weight control.
The mechanism for efficacy of eccentric loading in Achilles tendon injury; an in vivo study in humans.

OBJECTIVE
Degenerative disorders of tendons present an enormous clinical challenge. They are extremely common, prone to recur and existing medical and surgical treatments are generally unsatisfactory. Recently eccentric, but not concentric, exercises have been shown to be highly effective in managing tendinopathy of the Achilles (and other) tendons. The mechanism for the efficacy of these exercises is unknown although it has been speculated that forces generated during eccentric loading are of a greater magnitude. Our objective was to determine the mechanism for the beneficial effect of eccentric exercise in Achilles tendinopathy.


METHODS
Seven healthy volunteers performed eccentric and concentric loading exercises for the Achilles tendon. Tendon force and length changes were determined using a combination of motion analysis, force plate data and real-time ultrasound.


RESULTS
There was no significant difference in peak tendon force or tendon length change when comparing eccentric with concentric exercises. However, high-frequency oscillations in tendon force occurred in all subjects during eccentric exercises but were rare in concentric exercises (P < 0.0001).


CONCLUSION
These oscillations provide a mechanism to explain the therapeutic benefit of eccentric loading in Achilles tendinopathy and parallels recent evidence from bone remodelling, where the frequency of the loading cycles is of more significance than the absolute magnitude of the force.
Index Modulation with PAPR and Beamforming for 5G MIMO-OFDM

Although key techniques for next-generation wireless communication have been explored separately, relatively little work has been done to investigate their potential cooperation for performance optimization. To address this problem, we propose a holistic framework for robust 5G communication based on multiple-input-multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM). More specifically, we design a new framework that supports: 1) index modulation based on OFDM (OFDM–M) [1]; 2) sub-band beamforming and channel estimation to achieve massive path gains by exploiting multiple antenna arrays [2]; and 3) sub-band pre-distortion for peak-to-average-power-ratio (PAPR) reduction [3] to significantly decrease the PAPR and communication errors in OFDM-IM by supporting a linear behavior of the power amplifier in the modem. The performance of the proposed framework is evaluated against the state-of-the-art QPSK, OFDM-IM [1] and QPSK-spatiotemporal QPSK-ST [2] schemes. The results show that our framework reduces the bit error rate (BER), mean square error (MSE) and PAPR compared to the baselines by approximately 6–13dB, 8–13dB, and 50%, respectively.
DnaSP, DNA polymorphism analyses by the coalescent and other methods

SUMMARY
DnaSP is a software package for the analysis of DNA polymorphism data. Present version introduces several new modules and features which, among other options allow: (1) handling big data sets (approximately 5 Mb per sequence); (2) conducting a large number of coalescent-based tests by Monte Carlo computer simulations; (3) extensive analyses of the genetic differentiation and gene flow among populations; (4) analysing the evolutionary pattern of preferred and unpreferred codons; (5) generating graphical outputs for an easy visualization of results.


AVAILABILITY
The software package, including complete documentation and examples, is freely available to academic users from: http://www.ub.es/dnasp