bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cardiovascular MRI and CT in congenital heart disease
Authors: Pushparajah Kuberan , Duong Phuoc , Mathur Sujeev , Babu-Narayan Sonya V. 
Published: October 2019

Abstract
Cardiac MRI and CT are increasingly used in the diagnosis and management of patients with congenital heart disease as an imaging adjunct to echocardiography. The benefits and limitations of both modalities are highlighted, with a focus on the anatomical, functional and haemodynamic information that can be gained from the different modalities. Deciding on the imaging modality of choice must also take into account patient factors such as age, compliance, the type of congenital heart disease, and previous procedures. Future developments in CT and MRI are also discussed.
Impact of tooth brushing rhyme on the oral hygiene status of 6 -7 year old children - an educational intervention study
Authors: Sahiti Putta Sai , Kamatham Rekhalakshmi , Saikiran Kanamarlapudi Venkata 
Published: October 2019

Aim. To determine the impact of a newly composed tooth brushing rhyme on oral hygiene status of 6 to 7-year-old children.
Methods. A total of 60 children in the age range of 6 to 7 years were randomly assigned to either group 1 (experimental) or group 2 (control). Group 1 children were given brushing instructions and made to memorize a newly composed tooth brushing rhyme; the control group received only routine brushing instructions. Baseline oral hygiene status of all the children was assessed using the oral hygiene index simplified (OHI-S) and its modification for primary dentition. Oral prophylaxis was performed, and OHI was further recorded at intervals of seven, 14 and 28 days for all the children. The data was tabulated, compared, and analyzed statistically.
Results. There was no significant difference in the baseline OHI-S scores between the two groups (p≥0.05). However, there was a significant difference in OHI-S scores in all the considered time intervals after the intervention. Based on the two components of OHI-S, a statistically significant difference was noted only in debris scores. (7days: P=0.04, 14 days: P≤0.001, 28 days: P≤0.001)
Conclusion. The newly composed tooth brushing rhyme had a significant impact on the oral hygiene scores of children, and can be recommended in the routine educational curriculum of pre-primary children.
Various antioxidant responses to hyperthermia in anatomically different species of the genus Rosa
Authors: Nuzhyna N. V. , Tkachuk O. O. 
Published: October 2019

The heat and drought resistance of plants depend on their anatomical and biochemical features. In the present study, the adaptive features of three species of wild rose (Rosaceae, Rosales) under the short-term impact of high-temperature stress have been characterized. Plants of the species Rosa donetzica Dubovik, R. reversa Waldst. et Kit. and R. spinosissima L. were exposed to a temperature of 40 degrees C for 3 hours, following which peroxidase and superoxide dismutase activity, photosynthetic pigments and flavonoids’ content, and lipid peroxide oxidation level in the leaf were determined. In our investigation, the anatomical structure of leaves and drought resistance of three species of Rosa were studied. Xeromorphic features are the most expressed for R. reversa and R. spinosissima and almost absent for R. donetzica. It has been established that R. spinosissima is photophilous whereas R. donetzica is shade-tolerant. The relatively lower development of epidermic tissue in R. donetzica could probably contribute to more active destruction of the pigment complex under high temperature stress. The obtained data about changes in activity of peroxidase, superoxide dismutase, content of photosynthetic pigments and flavonoids, and level of lipid peroxidation indicate the low heat resistance of R. donetzica in comparison with the other two species. R. reversa, R. spinosissima were more tolerant to short-term hyperthermia. They showed faster antioxidant response, mainly due to the induction of peroxidase activity under stress. The species with the most expressed xerophytic features of anatomical structures have rapid antioxidant response and are more resistant to short-term hyperthermia. The induction of some activity of antioxidant enzymes "in reserve" is a less effective form of adaptation in wild roses. Such activation of enzymes is observed in plants with a more mesophytic structure. Flavonoids and superoxide dismutase were thermolabile to short-term influence of high temperature; therefore they play an insignificant role as antioxidants in the protecton against oxidative stress caused by high temperature stress in wild roses.
Unimaginable Dreams
Authors: Jamili Marzia , Nugent Brittany , Barbanel Dove 
Published: October 2019

Written and directed by Marzia Jamili, a Hazara refugee now living in Sweden, Unimaginable Dreams is an auto-ethnographic essay film that traces Marzia’s last days in Athens, Greece. Blending documentary and fiction, Marzia casts her best friends to recreate magically real versions of her dearest memories of Athens as she delivers a cutting address to Afghanistan, in which she tells the sea about her broken homeland.

This film project seeks to demonstrate the possibilities of collaborative filmmaking as a methodology, particularly in response to the limitations of etic observational approaches in migration research and the lack of refugee voices in public discourse. Through reenactment and Marzia’s epistolary narrative, Unimaginable Dreams resurfaces notions of belonging and citizenship within the imagination, weaving together oneiric and real geographies situated in the past and future. Facing perpetual displacement and public erasure, the film medium offers a declarative space of visibility in Athens, where its maker articulates rights and desires denied by the state.

Unimaginable Dreams is the first production by the Melissa Network's Film Club, a collaborative program cofounded by Brittany Nugent and Dove Barbanel that challenges hegemonic representations of migrant women by empowering members to reclaim the gaze and create narratives of their own. A creative group of women from Afghanistan, Iran, Syria, Iraq, Kenya, Nigeria and Ethiopia share diverse perspectives to analyze their favorite movies, learn filmmaking skills and collaborate on original productions that add urgent personal nuance and depth to migration storytelling.
THERMODYNAMIC INTERACTION COEFFICIENTS IN LOW-CONCENTRATED LIQUID BINARY ALLOYS
Authors: Bol’shov L. A. , Korneichuk S. K. 
Published: October 2019

The article considers basic expansion of thermodynamics and thermodynamic interaction coefficients of the first, second and third orders of low-concentrated binary alloys. The values of interaction coefficients of the first and second orders in 37 such systems were estimated according to experimental thermodynamic data on the concentration dependence of excess chemical potential of an impurity in liquid alloys of binary systems. Estimates were obtained by the numerical differentiation method. This method is based on Newton first interpolation formula. Calculation formulas for the corresponding estimates are given. A simple theory is proposed that relates the thermodynamic interaction coefficient of the second order with the first-order one in the liquid alloy of certain system. The theory is based on the lattice model of a solution and the principles of statistical mechanics. The FCC lattice is adopted as a model lattice. The model of pair interaction between metal atoms in the alloy was used. The radius of this interaction corresponds to radius of the nearest atomic shell. Using the proposed theory, thermodynamic interaction coefficients of the second-order for all 37 systems considered in this work, as well as the values of the third order interaction coefficients for 23 systems out of 37 mentioned above, were calculated. For these 23 systems, theoretical estimates of the second-order interaction coefficients are in agreement with experimental ones both by sign and by order of magnitude. This circumstance can be considered as evidence of applicability of the numerical differentiation method for estimation of thermodynamic interaction coefficients of the first and second orders in liquid binary alloys. The accuracy of estimating the values of the third derivative by numerical differentiation is insufficient. That makes it impossible to compare the calculated values of the interaction coefficients of the third order with the experimental ones, obtained by this method. It can be assumed that the theoretical calculations just give an idea of the magnitudes’ order of these coefficients.
CALCULATION OF THE THERMODYNAMIC CHARACTERISTICS OF Fe – P SYSTEM BY METHOD OF MOLECULAR DYNAMICS
Authors: Markidonov A. V. , Lubyanoi D. A. , Kovalenko V. V. , Starostenkov M. D. 
Published: October 2019

The problem of dephosphorization of iron-carbon alloys is relevant for the metallurgical industry, since a high concentration of phosphorus contributes to the appearance of a number of extremely undesirable phenomena. A lot of experimental work has been devoted to solving this problem, but it has still not been completely possible to cope with it. Any field experiments aimed at studying the process of phosphorus removal, require considerable material and time costs, but at the same time do not guarantee getting the desired result. Therefore, to search for new approaches to solving this problem, it is much more rational to use numerical simulation methods involving the computational capabilities of modern computers. At present, computer experiments are the same recognized research method as theoretical research and real experiment. To study the behavior of phosphorus atoms in iron using a numerical experiment, it is necessary to build a computational model and test it by calculating various characteristics whose values are known in advance. In this paper, the method of molecular dynamics was chosen as the method of computer simulation. Using this method, one can conduct experiments with given atomic velocities and describe dynamics of the studied processes. To describe the interparticle interaction, we used the potential calculated in the framework of the immersed atom method. The study was conducted on a computational cell simulating α-iron crystal with phosphorus substitution atoms. The constructed model demonstrated satisfactory results when calculating the known characteristics of the simulated system. Dependences of changes in such characteristics as temperature coefficient of linear expansion, melting point, latent heat of melting and heat capacity on the concentration of phosphorus atoms, as well as in some cases on magnitude of the applied external pressure were established. Calculations showed that, for example, the phosphorus concentration of 0.5 % leads to an increase in the average thermal coefficient of linear expansion by 9 %, a decrease in temperature and latent heat of fusion by 5 % and a heat capacity by 7 %.
FATIGUE PROCESS OF AUTOMOBILE MATERIALS
Authors: Pachurin G. V. , Goncharova D. A. , Filippov A. A. , Nuzhdina T. V. , Deev V. B. 
Published: October 2019

During operation, the structural elements of cars are exposed to temperatures and vibrations. Overwhelming majority of the destruction of metal structures is caused by their fatigue. It causes economic losses and often human casualties from accidents. Therefore, the task of ensuring the operability of parts and components of automobiles is one of the most relevant in the modern automotive industry. So it is necessary to know the patterns of behavior of metallic materials, obtained by different technologies, when they are exposed to vibration. Destruction of the metal structure directly affects the behavior of the samples deflection, reflecting the competition of two mutually oppositephenomena – hardening and softening. It directly influences structural damageability of the metal. The article is devoted to the study of kinetics of fatigue failure of automotive materials using the calibration of structural damage to their surface with behavior of the curves of changes in current deflection under alternating loading. The paper considers automotive materials (steel grades 20KhI3, 14Kh17N2, 35KhGSА) and model metals and alloys (Copper M1, Brass L63T, aluminum alloy V95pchT2) in different structural state under cyclic loading for low, room and high temperatures with fixation of the sample deflection and structural damage corresponding to it. It is possible to study kinetics of fatigue destruction of the sample material by the deflection curves, which is an integral characteristic of destructive processes occurring under alternating loading. Using these processes, one can track the stages of damage during fatigue of metallic materials – damage to the structure at the initial stage, moment of the macroscopic crack appearance, its subsequent advancement up to complete separation of the structural material. It is probable to identify ratio of the period duration before the appearance of a fatigue crack and its subsequent growth, as well as to determine the average rate at which the fatigue crack moves through the body of the metal sample. It is important that it is also possible to estimate the kinetics of materials destruction under the conditions when direct study of the structural state of the sample surface is impossible, for example, in conditions of cryogenic and high temperatures, and also, for example, in the presence of corrosive media. In combination with fractographic and metallographic analysis of the fatigue process, the deflection curves allow, based on the evaluation of the stages of materials destruction, to carry out selection of the latter for the structural elements of a car taking into account its operating conditions and optimizing the technology of parts manufacturing to increase serviceability and maintainability.
Escola Engenheiro Millet – pioneira em Tamandaré, Pernambuco
Authors: Santos Maria do Carmo Ferrão 
Published: October 2019

O texto objetiva reunir informações sobre a primeira escola municipal de Tamandaré, inaugurada em 1928, para que a história deste extraordinário legado seja divulgada por gerações. Este patrimônio de imensa importância social funcionou por quatro décadas, num período em que quase a totalidade da população era analfabeta. Também contempla uma resumida biografia sobre o engenheiro Millet, já que teve o seu nome escolhido para nominar a primeira grande obra social construída em Tamandaré.
Palavras-chave: Primeira escola. Engenheiro Millet. Tamandaré.
Highlights of a Cursory Study of Behavior of Three Instrumented Buildings during the Mw 7.1 Anchorage, Alaska, Earthquake of 30 November 2018
Authors: Çelebi Mehmet 
Published: October 2019

AbstractThis is a cursory study of the recorded responses of three buildings instrumented by the U.S. Geological Survey (USGS) in Anchorage, Alaska, during the Mw 7.1 earthquake of 30 November 2018. The earthquake caused the strongest shaking in Anchorage since the well‐known 1964 Mw 9.2 Great Alaska earthquake. Since the 1964 event, several structures (buildings and bridges) in Anchorage have been instrumented by the USGS, and their responses have been recorded during multiple events. For each of the three buildings (the 14‐story Frontier Building, the 20‐story Atwood Building, and the 22‐story Hilton Hotel) studied herein, essential dynamic characteristics and significant behavioral aspects such as beating and torsional motions are identified. Recorded peak accelerations and displacements are provided, and average drift ratios are computed using the peak displacements at the roof levels with respect to the ground level. These average drift ratios imply that the motions are at levels expected not to cause damage to the buildings. Visualization videos of both the 14‐story Frontier and the 20‐story Atwood Buildings have been developed to display overall shaking of the buildings during the earthquake.
The Impact of USArray on Earthquake Monitoring in Alaska
Authors: Ruppert Natalia A. , West Michael E. 
Published: October 2019

AbstractSeismic network coverage in Alaska has fundamentally changed with the presence of the USArray Transportable Array (TA) stations. These new stations provided an unprecedented opportunity to expand earthquake reporting in areas of Alaska that have not previously been instrumented. The Alaska Earthquake Center (AEC) has been incorporating all TA data into its standard earthquake analysis. The TA network is currently the second largest contributor of phase picks in the Alaska earthquake catalog, after the AK network operated by the AEC. Recent increases in reported earthquakes (about 45,000 in 2017 and 55,000 in 2018) are directly attributable to the additional TA stations, especially in the northern and western mainland Alaska. In some regions, the earthquake detection threshold decreased by as much as two units of magnitude. With the TA installation complete in 2017, the detection threshold over the entire mainland Alaska region is M∼1.5. The new stations have also led to a decrease in hypocentral location errors, which are now more uniform over the entire mainland Alaska region. The uniformity of the TA network made it possible, for the first time, to make quantitatively valid comparisons of microseismic activity in different parts of the state. Among other observations, this uniform coverage helped demonstrate that the quiescence that has long been inferred in the central and western Arctic Slope region appears to be real, and not just an artifact of network coverage. This combined network should, with time, provide vastly better data for seismic hazard assessments in an area of increasing national interest.
Medical awareness of risk factors of cardiovascular diseases in different types of hospitalized patients (part 2)
Authors: Pogosova N. V. , Yufereva Y. M. , Ausheva A. K. , Sokolova O. Y. , Melik-Oganjanyan G. Y. , Karpova A. V. , Arutyunov A. A. , Kalinina A. S. , Vygodin V. A. 
Published: October 2019

Objective. To study medical awareness of cardiovascular risk factors (RFs) in different types of hospitalized patients (pts). Methods. A total of 150 pts from neurological, endocrinological and cardiac units one of Moscow city hospital were enrolled into the survey (50 pts in each unit). The pts were interviewed during the I-II days of the hospitalization. A special questionnaire was developed in‑ cluding socio-demographic and clinical indicators, open questions on the awareness of traditional cardiovascular RFs and their target values. Results. Pts of three units did not differ in gender and age. The range of diagnoses corresponded to the profile of the unit. The survey revealed an extremely low awareness of major cardiovascular RFs of pts in all 3 units: almost none of them pointed to elevated cholesterol (0%, 4% and 0%, respectively) and blood pressure (2%, 2% and 0%) respectively) as RF of cardiovascular diseases. The pts of the three units most often referred to stress (64%, 56% and 66%, respectively) and unhealthy diet (50%, 56% and 64%, respectively) as the main cardiovascular RFs. On average, pts in three units correctly indicated only 2 RFs. Conclusion. The survey revealed a low awareness of cardiovascular RFs in different types of medical pts, including cardiac pts, at time of hospital admission.
A retrospective clinical study and management of ingested Indian currency coin found in the oesophagus among paediatric age group
Authors: M. S. Sudhakar Rao , Karade Deepak 
Published: October 2019

<p class="abstract"><strong>Background:</strong> Foreign body ingestion is a common event in children and carries significant morbidity and mortality. Indian currency coins are found to be the common ingested foreign bodies hence, to be treated accordingly.</p><p class="abstract"><strong>Methods:</strong> A 7 years retrospective review of 133 children diagnosed, admitted and managed for “ingested Indian currency coin” between January 2011 to December 2017 in the Department of Oto-rhino-laryngology and Head and Neck surgery, Vijayanagar Institute of Medical Sciences, Ballari, Karnataka, India. A plain radiograph of the relevant views of neck and chest were taken to identify the foreign body. </p><p class="abstract"><strong>Results:</strong> There were 80 (60.2%) males and 53 (39.8%) females, ranging in age from 6 months to 15 years. Most of the patients 98 (73.7%) presented within 12 hours of the coin ingestion. 109 patients presented with one or more symptoms, common being vomiting 83 (62.4%). Coin was located mostly at the cricopharynx 111 (83.5%). Coin removal was possible using Macintosh laryngoscope and Magill’s forceps in 106 (79.7%) patients, and 27 (20.3%) patient’s required rigid oesophagoscope.</p><p class="abstract"><strong>Conclusions:</strong> Indian currency coin ingestion is commonly found in cricopharyngeal area of the oesophagus among preschool age group. The duration of retention of the foreign body, procedural time, hospital stay of the patient, diameter of the coin in both the genders have no impact on clinical outcome on retrieval of them.</p>
Total knee arthroplasty at Gaza Strip Palestine: compliance and retrospective comparative study
Authors: Afana Hatem B. , Dhair Rafat F. 
Published: October 2019

<p class="abstract"><strong>Background:</strong> In Gaza Strip, arthroplasty only performed at our center. This study is to assess the compliance and improve current practices.</p><p class="abstract"><strong>Methods:</strong> Study is based on medical records review of all patients underwent total knee arthroplasty (TKA) between January 2016 and December 2017.<strong></strong></p><p class="abstract"><strong>Results:</strong> Forty eight TKA were performed on 41 patients. Neuraxial anesthesia used in 43 operations (30 spinal, 13 epidural). Tranexamic acid used in 20 operations and those show less frequently decrease in hemoglobin level after surgery and for blood transfusion. Simultaneous bilateral TKA used in one patient. Drain used in 26 operations, 2 of them had infection. No one started physiotherapy at same day surgery, this may be due to repeat doses of Epidural anesthesia, performed surgeries before weekend and using the drain. Delayed physiotherapy is associated with prolong hospitalization and increase suspicion of deep venous tthrombosis. The result from our retrospective comparative study was similar to guidelines.</p><p class="abstract"><strong>Conclusions:</strong> We concluded that there is overall good management of TKA in our hospital according to the best available evidence. We recommend to use the international guidelines like the American Academy of Orthopaedic Surgeons (AAOS) guidelines as a standard guidelines to our Hospital, and increase awareness of our staff to the good practice guidelines. Emphasize the important elements that we have shorten of good practice as listed in the discussion. </p>