Miracle-dz/UniFAR-FTUs huggingface dataset:
ESTIMATED AND MEASURED VALUES OF THE RADIOFREQUENCY RADIATION POWER DENSITY AROUND CELLULAR BASE STATIONS ê

Theoretical and experimental assessment of radiofrequency exposure due to cellular base station antennas is treated. The calculation of the incident power density of the radiation flux is possible by knowing the antenna’s technical data from the constructor and by defining the position of the exposed person. The free space propagation model in ideal conditions yet allow just a gross assessment of exposure in the far field region of the antenna, which generally overestimates the real exposure level. Exposure assessment may be also theoretically calculated in near field conditions, with a better agreement with real cases. The compliance distance from the antenna is another important parameter and it can be calculated in accordance to the reference levels stipulated in exposure standards. From experimental perspective, far field in situ measurements of power density level were made in a limited number of locations, by using the frequency-selective method and equipment. The results are discussed, regarding both the obtained values and the factors that influence the measurements. The measured values were well bellow the maximum permissible exposure levels in the adopted standard in our country.
Prevalence of vertebral fracture in women and the relationship with bone density and symptoms: The chingford study

A population survey was performed to estimate the prevalence of vertebral fractures in women aged 45–69 and to determine their relationship to bone density and symptoms. Subjects were 1035 women aged 45–69 (mean 55.4 years, response rate 77%) from the age‐sex register of a large 11,000‐person general practice in Chingford, London. Thoracic and lumbar spine x‐rays were read by a semiautomated quantitative method. Vertebral fractures were diagnosed using a variety of morphometric methods, including a new method we recently developed and the published methods of Melton and Eastell. These methods all detect abnormal ratios between anterior, central, or posterior vertebral height and between observed posterior vertebral height and values predicted from the posterior height of adjacent vertebrae. Bone mineral density (BMD) of lumbar spine L1–4 and neck of femur was measured by dual‐energy x‐ray absorptiometry (DXA). Using our method, 147, 14.2% (95% CI 12.0–16.2%) of the 1035 women, had minor fractures (at least two vertebral ratios 2–2.99 SD below the mean) and 20, 1.9% (95% CI 1.2–3.0%) of the total, had severe fractures (at least two ratios more than 3 SD below the mean). In the 147 women with minor fractures, bone density of the spine was not significantly lower than in the other 868 women, and reported back pain or loss of height was no more common. Women with multiple minor fractures did have lower bone density, by 0.4 SD. In the 20 women with severe fracture, bone density was significantly lower, by 0.6 SD. Loss of height was more common, but back pain was not. Using the method of Melton the prevalence of deformity was 10.2% and, for the Eastell 3 and 4 SD method, 9.7 and 1.3%, respectively, which is similar to published data from the Rochester population. Minor vertebral deformities are common in postmenopausal women, but they are not usually associated with pain, loss of height, or (unless multiple) reduced bone density. This suggests that they may not be of clinical or pathologic importance. Severe deformities associated with low bone density are rare in U.K. women under the age of 70.
Impact of interferon beta-1a on neurologic disability in relapsing multiple sclerosis. 1997.

Background and Objective: A phase III double-blind, placebo-controlled clinical trial demonstrated that interferon beta-la (IFNβ-1a) (Avonex, Biogen) significantly delayed progression of disability in relapsing MS patients. The primary clinical outcome was time from study entry until disability progression, defined as≥1.0 point worsening from baseline Kurtzke Expanded Disability Status Scale (EDSS) score persisting for at least two consecutive scheduled visits separated by 6 months. The objective of this study was to examine the magnitude of benefit on EDSS and its clinical significance. Methods: Post hoc analyses related to disability outcomes using data collected during the double-blind, placebo-controlled phase III clinical trial. Results: (1) Clinical efficacy related to disability did not depend on the definition of disability progression. A significant benefit in favor of IFNβ-1a was observed when ≥2.0 point worsening from baseline EDSS was required or when worsening was required to persist for ≥1.0 year. (2) Placebo recipients who reached the primary clinical outcome worsened by a larger amount from baseline EDSS than did IFNβ-1a recipients who reached the primary study outcome. (3) Significantly fewer IFNβ-1a recipients progressed to EDSS milestones of 4.0 (relatively severe impairment) or 6.0(unilateral assistance needed to walk). (4) Cox proportional hazards models demonstrated that the only baseline characteristic strongly correlated with longer time to disability progression was IFNβ-1a treatment. Conclusions: The primary clinical outcome for the IFNβ-1a clinical trial underestimated clinical benefits of treatment. Results in this report demonstrate that IFNβ-1a treatment is associated with robust, clinically important beneficial effects on disability progression in relapsing MS patients.
Tissue engineering of bone

Despite well-established bone-grafting techniques, large bone defects still represent a challenge for orthopaedic and reconstructive surgeons. Efforts have therefore been made to develop osteoconductive, osteoinductive and osteogenic bone-replacement systems. According to its original definition, tissue engineering is an 'interdisciplinary field that applies the principles of engineering and the life sciences toward the development of biological substitutes that restore, maintain, or improve tissue function'. It is based on the understanding of tissue formation and regeneration, and aims to grow new functional tissues rather than to build new spare parts. This review focuses on the principles of tissue engineering applied to the creation of bioartificial bone tissue. Important aspects, such as osteogenic cells, matrix materials, inter- and intra-cellular communication, growth factors, gene therapy and current concepts of bone tissue engineering are reviewed. First clinical applications are discussed. An outlook provides insight into the possible future perspectives of bone tissue engineering.
Usefulness and limitations of contractile reserve evaluation in patients with low‐flow, low‐gradient aortic stenosis eligible for cardiac resynchronization therapy

In low‐flow, low‐gradient aortic stenosis (LF/LG AS), the assessment of contractile reserve (CR) by dobutamine stress echocardiography (DSE) is recommended for risk stratification and treatment strategy. However, DSE may show limitations in cases of left ventricular dyssynchrony (LVD). The impact of LVD in LF/LG AS, and the feasibility of CRT in this setting have never been evaluated. We aimed to assess: (i) the proportion of LF/LG AS patients with LVD; (ii) the influence of LVD on CR at DSE; and (iii) the effects of CRT in these patients.
Quantification of Different Classes of Canal‐Related Vestibular Nuclei Neuron Responses to Linear Acceleration

A change in otolith activity modifies the dynamic responses of both the and the vertical4 vestibuloocular reflexes (VOR). In response to rotations in vertical planes, dynamic otolith activity is necessary for compensatory eye movements in the rabbit5 and the cat.6 Therefore, significant convergence of otolith and canal information in the VOR pathway must occur. The activity of single vestibular nuclei neurons in the decerebrate rat were recorded extracellularly during sinusoidal linear translation in the horizontal head plane. Details of the experimental procedure are presented elsewhere. ’ Neurons from the four groups-(1) type I and (2) type I1 horizontal canal related, (3) vertical canal related, and (4) purely otolith-were systematically tested for their responses to translation at various horizontal head orientations. These responses were then used to describe a response ellipse*JO in which the semimajor axis (S1) defined the cell’s direction of maximum sensitivity and its associated gain and phase and the semiminor axis (S2) defined the minimum sensitivity of the cell in the horizontal head plane. When the magnitude of the S2 vector was zero, the response was referred to as narrowly tuned and was characterized by gain values that were proportional to the cosine of the angle between S1 and the stimulus direction and phase values that were constant with respect to stimulus direction. Whereas, a response with a nonzero magnitude of the S2 vector was referred to as broadly tuned and was characterized by a response phase that varied as a function of stimulus angle. The accuracy with which the response ellipse quantitatively described the data was assessed by comparing the direction, gain, and phase values of the maximum response determined empirically with those calculated from the fitted curves (compare the data points with the curve in FIGURE 1). The calculated and experimentally measured responses had high linear regression coefficients (r = 0.93014.9976) and slopes close to unity. Broadly tuned neurons were observed in each of the four groups of neurons studied. The ratio of S2 and S, response magnitudes (tuning ratio) was calculated for all neurons. The distribution of ratios was similar for all neuron groups. In addition,
Dynamic state estimation in power systems using Kalman filters

Dynamic state estimation of power systems is necessary for wide area control purposes. Among the states of synchronous machine, precise, accurate, and timely information about rotor angle and speed deviation can be useful to enhance power system reliability and stability. In this paper two popular nonlinear estimation approaches: Extended Kalman Filter (EKF) and Unscented Kalman Filter (UKF) are used to estimate main states of a simple power system using high rate data provided by Phasor Measurement Unit (PMU). A case study using a simple power system model is presented to illustrate the effectiveness of proposed approaches.
Future therapies for pre‐eclampsia: beyond treading water

Pre‐eclampsia remains a major burden of disease, accounting for approximately 50,000–70,000 maternal deaths each year worldwide. Frustratingly, the management of pre‐eclampsia has remained essentially unchanged for much of the last century and focussed primarily on maternal blood pressure control to allow fetal maturation. Recent advances in the understanding of the pathogenesis of pre‐eclampsia and the elucidation of distinct underlying mechanisms offer the genuine prospect of new and effective therapies that may transform outcomes for millions of women and their babies.
A new method for tilted radiation using frequency selective reflectors

We propose a new beam control method using frequency selective side reflectors (FSRs) with no help of the conventional array of multiple antennas. To control radiation directions on an H plane, we need only one feeding dipole antenna with a pair of the FSRs placed on both sides of the dipole antenna. Each FSR consists of equal-length rectangular copper patches. But, in order to obtain different reflection phase from each FSR, the lengths of the patches on each FSR are different from one another. By changing reflection behavior of each FSR, we can derive constructive interference between a direct wave from the dipole and the reflected waves from the FRS and a ground plane. Consequently, we can direct our antenna beam in any target direction with relatively high gain in a wide frequency range.
Characterization of the Tet M determinants in urogenital and respiratory bacteria

Tetracycline-resistant Fusobacterium nucleatum, Haemophilus ducreyi, Mycoplasma hominis, Peptostreptococcus spp. , Ureaplasma urealyticum, and Veillonella parvula had DNA sequences which showed homology throughout the length of the Tet M transposon, Tn916. In contrast, Gardnerella vaginalis, commensal Neisseria spp. , and the 25.2-megadalton plasmid family lacked the complete transposon.
Sexual Harassment, Workplace Authority, and the Paradox of Power

Power is at the core of feminist theories of sexual harassment, although it has rarely been measured directly in terms of workplace authority. Popular characterizations portray male supervisors harassing female subordinates, but power-threat theories suggest that women in authority may be more frequent targets. This article analyzes longitudinal survey data and qualitative interviews from the Youth Development Study to test this idea and to delineate why and how supervisory authority, gender nonconformity, and workplace sex ratios affect harassment. Relative to nonsupervisors, female supervisors are more likely to report harassing behaviors and to define their experiences as sexual harassment. Sexual harassment can serve as an equalizer against women in power, motivated more by control and domination than by sexual desire. Interviews point to social isolation as a mechanism linking harassment to gender nonconformity and women’s authority, particularly in male-dominated work settings.
COMPOUND ODONTOMA ASSOCIATED WITH A MESIODENS- A RARE CASE REPORT

Odontomas are developmental anomalies of the dental tissues that may interfere with the eruption of the associated tooth. These lesions are generally asymptomatic and are usually detected on routine radiographs. Morphologically odontomas can be classified as complex, when present as irregular masses containing different types of dental tissues, or as compound if there is superficial anatomic similarity to even rudimentary teeth – the denticles. The present report describes the surgical management of a case of compound odontoma in 11-year-old boy who presented with a complaint of missing tooth in maxillary anterior region. After the lesion was surgically removed under local anesthesia, histopathological examination confirmed the diagnosis of compound odontoma. KEYWORDSCompound odontomas, mesiodens, surgical excision Cite this Article:Rakhshanda Antulay, Aruna Tambuwala, Aatif Sayed, Gaurav Khutwad: Compound odontoma associated with a mesiodensA rare case report: Journal of Head & Neck physicians and surgeons Vol 3 ,Issue 3, 2015 :Pg 155164
THE RELATIONSHIP BETWEEN FIRM INTELLECTUAL CAPITAL AND THE COMPETITIVE ADVANTAGE pek

Previous studies rarely examined the relationship between intellectual capital and competitive advantage. Most studies underestimate the shift towards knowledge based economy where, capital and work are no longer the differentiating and generating factors of sustainable competitive advantage. Relatively, little is known in the literature about how intellectual capital affects competitive advantage. This study will contribute to the literature by proposing a theoretical model considering the relationship of intellectual capital with the creation of competitive advantage in knowledge intensive organizations. Additionally, the extensive literature review will be utilized in the development of five hypotheses linking intellectual capital with competitive advantage. The hypotheses show that, human capital, organizational capital and relational capital positively influence competitive advantage. Moreover the positive influence of intellectual capital on strategy formulation and the positive influence of strategy formulation on competitive advantage constitute the basis for the hypothesis; intellectual capital positively influences competitive advantage. The last hypothesis is based on the positive influence of innovation on competitive advantage regarding the positive relationship between the relational capital and innovation. A future research opportunity can be the statistical testing of the hypotheses with the survey method.
Differences in retinal neovascular tissue and vitreous humour in patients with type 1 and type 2 diabetes

Aims: The aim of the study was to evaluate the histopathology of neovascular tufts and vitreous samples collected from patients with diabetes. Methods: Vitreous samples and neovascular tufts were collected from patients with type 1 (n = 13) and (n = 17) type 2 diabetes with proliferative retinopathy, and from controls with a macular hole (n = 5). Neovessels were analysed using immunohistochemistry and vitreous samples with an enzyme-linked immunosorbent assay (ELISA). The main outcome measure was to examine differences in the levels of growth factors in patients with type 1 and type 2 diabetes with proliferative retinopathy. Results: Vascular endothelial growth factor (VEGF)-A was most strongly present in the samples from patients with type 1 diabetes. In type 2 diabetes, VEGF-D was more abundantly present than in type 1 diabetes. Angiopoietin (ANG)-2 was also abundantly present. Macrophages and nuclear factor kappa B (NFκB) were found, indicating the presence of an inflammatory process in the neovascular tissues. Conclusions: VEGF-A and ANG-2 are equally important in the neovascular process in both type 1 and type 2 diabetes. VEGF-D is abundantly present in type 2 diabetes. In order to achieve better control of diabetic retinopathy, it might be beneficial to develop treatments that prevent the actions of ANG-2 and VEGF-D.
Echocardiographic Features of Peripartum Cardiac Failure: The Zaria Syndrome

Zaria has the highest incidence of peripartum cardiac failure, a syndrome of unsettled aetiology. Over the years it has been noted that there has been a decrease in the period of treatment by traditional methods from an average of 90 days to 30 days and with a complete avoidance of hot bed treatment. Twenty-one subjects with the syndrome were studied: they exhibited the same clinical findings as evinced in previous reports from our centre. Echocardiography findings of dilated heart with depressed left ventricular function were noted. There was a statistically significant relationship between the duration of practice and ejection fraction (EF), r=0.36 and P<0.05, duration of practice and left ventricular internal diameter in diastole (LVIDd), r=0.28, P<0.05. Were these subjects suffering from a quiescent heart muscle disease from a previous viral myocarditis and did they require an expanded volume as a trigger? Or are they intolerant of salt requiring only a small increase from the traditional method of treatment to precipitate cardiac failure? Further investigation in the field of molecular biology is required.
Skin hydration: a review on its molecular mechanisms

Water is absolutely essential for the normal functioning of the skin and especially its outer layer, the stratum corneum (SC). Loss of water from the skin must be carefully regulated, a function dependent on the complex nature of the SC. The retention of water in the SC is dependent on two major components: (1) the presence of natural hygroscopic agents within the corneocytes (collectively referred to as natural moisturizing factor) and (2) the SC intercellular lipids orderly arranged to form a barrier to transepidermal water loss (TEWL). The water content of the SC is necessary for proper SC maturation and skin desquamation. Increased TEWL impairs enzymatic functions required for normal desquamation resulting in the visible appearance of dry, flaky skin. There have been recent discoveries regarding the complex mechanisms of skin hydration. In particular, it has been discovered that glycerol, a well‐known cosmetic ingredient, exists in the SC as a natural endogenous humectant. Hyaluronan, which has been regarded mainly as dermal component, is found in the epidermis and is important for maintaining normal SC structure and epidermal barrier function. More importantly, the discovery of the existence of the water‐transporting protein aquaporin‐3 in the viable epidermis and the presence of tight junction structures at the junction between the stratum granulosum and SC have brought new insights into the mechanisms of skin water distribution and barrier function.
How can we construct a science of consciousness?

This chapter gives an overview of the projects facing a science of consciousness. Such a science must integrate third‐person data about behavior and brain processes with first‐person data about conscious experience. Empirical projects for integrating these data include those of contrasting conscious and unconscious processes, investigating the contents of consciousness, finding neural correlates of consciousness, and eventually inferring underlying principles connecting consciousness with physical processes. These projects are discussed with reference to current experimental research on consciousness. Some obstacles that a science of consciousness faces are also discussed.
Building Environment Maps using Neural Networks

In this paper, we present an efficient and cheap approach to build a sonar based mapping for autonomous mobile robot in indoor environments. The system uses one ultrasonic sensor (Emitter and receiver are separated) mounted on a motorization constituted by two motors allowing horizontal and vertical scanning. The reading is modelled as probability profiles projected on a two-dimensional map. These readings provide information’s concerning empty and occupied areas in the sensor cone. The latter is the geometric representation of the sensor beam, it is composed of data allowing recognition of the environment structure. The world is modelled as a grid of cells. Two classifying neural nets are used to build the environment map, the first one for robot navigation in order to scan the workspace to obtain a data base which is used by a second one to build the map. The result is a faithful representation of the real environment when the inputs are cones of data. The map can be used to plan paths and for navigation. Results from actual runs are presented at the end.
Replica Placement Strategies for Wide-Area Storage Systems

Wide-area durable storage systems trigger data recovery to maintain target data availability levels. Data recovery needs to be triggered when storage nodes permanently fail, i.e., data is lost. Transient failures, where nodes return from failure with data, add noise to determining that a node has failed permanently. Replica placement strategies maintain data availability while minimizing cost, wide-area bandwidth. Correlated failures can compromise data availability. We demonstrate that correlated downtimes exist and that simple replica placement strategies can overcome the correlation and maintain target data availability levels.
Hormone induced lactation in the bovine III. Dynamics of injected and endogenous hormones.

Three lactations were induced in two cows in two trials by twice daily subcutaneous injections for seven days. Each injection contained . 05 mg/kg body weight of estradiol-17beta and . 125 mg/kg body weight of progesterone. Included with the hormones in trial 1 was a combination of 233 muCi of [6,7-hydrogen-3] estradiol-17beta and 12 muCi of [4-carbon-14] progesterone. During trial 2,2050 muCi of [2,4,6,7 hydrogen-3] estradiol-17beta were incorporated with the hormones for one cow and 2344 muCi of [1,2,6,7 hydrogen-3] progesterone for the other. Radioactivity from hydrogen-3 and carbon-14 was detected in urine and feces but not in mammary secretion during trial 1. Isotope recovery from [hydrogen-3] estradiol-17beta was too low to quantify. By day 17, 90% of the carbon-14 from progesterone was accumulated in feces and 8.0% in urine. For trial 2, recoveries of radioactivity by day 28 from urine, feces, and mammary secretions were, respectively, 32.4, 56.2, and less than . 002% from [hydrogen-3] estradiol-17beta and 6.0, 87.7, and . 25% from [hydrogen-3] progesterone. Estrogen and progesterone in plasma averaged 1.83 and 2.61 ng/ml during days 2 to 7. Estrogen decreased more rapidly than progesterone post-treatment, but both had decreased by days 16 to 19 when average prolactin of plasma increased. Quantitative measures of estradiol 17-beta and progesterone absorption, whether in plasma or excreta, were correlated.