bluuebunny/crossref_metadata_2025 huggingface dataset:
Immediate implant placement: Report of case series
Authors: Koray Meltem , Ozcan I. , Alkan B. , Kesmez O. , Tanyeri H.
Published: July 2015

Objective: The aim of this study was to evaluate the outcome of immediate postextraction implant placement. Immediate placement of dental implants have been claimed of the potential advantages such as reductions in the number of surgical interventions, a shorter treatment time, an ideal 3-dimensional implant positioning, the presumptive preservation of alveolar bone at the site of the tooth extraction and soft tissue aesthetics. Method: In this case series we reported to extract 15 teeth in 12 patients (8 males; 4 females, mean age: 46.08 years) and replace the teeth with implants immediately. Results: There were no signs of inflammation or infection and none of the patients had complaints subsequently. All implants were osseointegrated at the time of abutment connection. Postoperative healing was uneventful in all of the patients. No complications were observed. Conclusion: Within the limits of the present study, immediate implant placement was a predictable treatment.
Comparative Analysis of Semiconductor Power Losses of Galvanically Isolated Quasi-Z-Source and Full-Bridge Boost DC-DC Converters
Authors: Kosenko Roman , Liivik Liisa , Chub Andrii , Velihorskyi Oleksandr
Published: July 2015

This paper compares semiconductor losses of the galvanically isolated quasi-Z-source converter and full-bridge boost DC-DC converter with active clamping circuit. Operation principle of both converters is described. Short design guidelines are provided as well. Results of steady state analysis are used to calculate semiconductor power losses for both converters. Analytical expressions are derived for all types of semiconductor power losses present in these converters. The theoretical results were verified by means of numerical simulation performed in the PSIM simulation software. Its add-on module “Thermal module” was used to estimate semiconductor power losses using the datasheet parameters of the selected semiconductor devices. Results of calculations and simulation study were obtained for four operating points with different input voltage and constant input current to compare performance of the converters in renewable applications, like photovoltaic, where input voltage and power can vary significantly. Power loss breakdown is detailed and its dependence on the converter output power is analyzed. Recommendations are given for the use of the converter topologies in applications with low input voltage and relatively high input current.
Regionální nástroje na podporu výzkumu, vývoje a inovací v České republice
Authors: Kostić Miroslav
Published: July 2015

V souvislosti s probíhajícím procesem přípravy a implementace Národní výzkumné a inovační strategie pro inteligentní specializaci ČR (RIS3) roste význam regionálních samospráv pro realizaci opatření zvyšujících inovační výkonnost kraje a pro posilování aktivní spolupráce veřejné, podnikové a akademické sféry. Příspěvek přibližuje vybrané typy nástrojů na podporu výzkumu, vývoje a inovací, využívané v krajích České republiky (dále ČR). Vychází přitom zejména z údajů z evropského projektu Regional Innovation Monitor Plus. V souboru zde sledovaných regionálních podpůrných programů a aktivit jsou nejčastěji se vyskytujícím typem nástroje inovační vouchery, jejichž hlavním cílem je posílení spolupráce a přenosu znalostí mezi výzkumnou a podnikovou sférou. V některých českých krajích jsou rovněž využívány dotační a úvěrové programy na podporu inovativních podniků. Celkově nízké prostředky plynoucí z regionální úrovně, malá diverzifikace využívaných podpůrných nástrojů ve většině krajů i nedostatečná evaluace ukončených programů představují hlavní výzvy pro regionální inovační politiku v ČR.
Of Masters, Men, Machines and (M)others: Revisiting the Virgin and the Dynamo in a Post/Trans-Human Context
Authors: Chiper Sorina
Published: July 2015

The Education of Henry Adams owes its cultural cachet, in part, to Adams’ elaboration of a dichotomy that has pitted religion against science and technology. Though Western ideologies of modernity have viewed religion in rather negative terms, the current revival of religiosity in the postist context (post-modern, post-communist, post-colonial, post-human) invites a reconsideration of the role of religious belief, practice and objects/symbols in the current society. This article discusses Henry Adams’s dichotomy of the Virgin and the Dynamo, and recontextualizes it from a post-human perspective. It argues that the return of religiosity or spirituality, in its multiple forms, is an ethical stance that signals a cultural need for the feminine values of care, solidarity, affection and affiliation.
Magnetostructural Relationships For Fe(III) Spin Crossover Complexes
Authors: Augustín Peter , Boča Roman
Published: July 2015

Structural data for fifteen complexes of Fe(III) of a general formula [FeL5X], with pentadentate Schiff-base ligands L5 and unidentate coligands X−, were subjected to a statistical analysis. The multivariate methods such as Pearson correlation, cluster analysis and principal component analysis split the data into two clusters depending upon the low-spin and/or high-spin state of the complex at the temperature of the X-ray experiment. Some of these complexes exhibit a thermally induced spin crossover. The numerical analysis of the magnetic susceptibility and magnetization data for an enlarged set of Fe(III) spin crossover systems yields the enthalpy ΔH and entropy ΔS of the transition along with the transition temperature T1/2 and the solid state cooperativeness. The thermodynamic data show a mutual relationship manifesting itself by linear ΔS vs ΔH and T1/2 vs ΔH correlations.
On Perceiving Tropes
Authors: Spryszak Przemyslaw
Published: July 2015

In this short paper I consider Professor Bence Nanay’s suggestion that representationalism can be supported by the theory of tropes. I argue that from a philosophical point of view such a support is nevertheless not very strong.
Scaffolded Minds And The Evolution Of Content In Signaling Pathways
Authors: Korbak Tomasz
Published: July 2015

Hutto and Myin (2013) famously argue that basic minds are not contentful and content exists only as far as it is scaffolded with social and linguistic practices. This view, however, rests on a troublesome distinction between basic and scaffolded minds. Since Hutto and Myin have to account for language purely in terms of joint action guidance, there is no reason why simpler communication systems, such as cellular signaling pathways, should not give rise to scaffolded content as well. This conclusion remains valid even if one rejects the view of language as mediated through public symbols and embraces global antirepresentationalism. Content evolves spontaneously in complex regulatory systems, such as human, animal, and cellular communication.
The Determination of Sub-microgram Quantities of Cyanide in Biological Materials
Authors: Shanahan R
Published: July 2015

In forensic toxicology it is often necessary to determine cyanide levels in biological materials. Reviews on methods for determining cyanide levels include those of Guatelli [10] and Bark and Higson [11].
Legal Problems of the Forensic Odontologist
Authors: Woolridge ED
Published: July 2015

With the growing demand for competent forensic odontologists and the corresponding growth of interest in the field, it becomes of utmost importance for us to be aware of the legal problems involved in this area. In conjunction with the rapid growth in this field, there are more people working on more cases and, therefore, more changes of litigation and a need for the understanding of laws that govern this specialty.
The Identification of Acrylic Fibers by Polymer Composition as Determined by Infared Spectroscopy and Physical Characteristics
Authors: Smalldon KW
Published: July 2015

Acrylic fibers are now regularly encountered in the investigation of crime mainly due to their widespread use in the manufacture of outer clothing and carpets. Although acrylic fibers are easily recognized as a group, making a specific identification is particularly difficult. The sample available for identification and comparison in forensic science laboratories may be restricted to a few single fibers, a condition which imposes severe limitations on the value of existing identification schemes for acrylic fibers.
Dental Identification of Aircraft-Accident Fatalities
Authors: Sopher IM
Published: July 2015

The identification of the dead represents a humane and moral responsibility that often comes to rest upon the shoulders of the dentist. The identification of unknown human remains is mandatory for legal certification of death, which is prerequisite to the culmination of subsequent legal events, such as the settlement of wills, awarding of insurance benefits, termination of business affairs, and remarriage of survivors. In deaths resulting from accidents, certification of death is necessary prior to the possible institution of legal action involving negligent parties. From the standpoint of the aerospace pathologist or other persons concerned with air safety and improvement of the man-machine relationship as it applies to aircraft, the identification of air-crash victims enables an assessment to be made regarding the seating location of those involved so as in turn to allow reconstruction of crash mechanics and the mechanism of injury patterns. In addition, identification of the crewmembers enables the pathologist to assess the role played by natural disease in a given accident. As an example, a question may arise as to whether the pilot suffered a fatal heart attack that resulted in the accident. The pathologist may have found a diseased heart, but is it from the pilot or whom?
Incompetency to Stand Trial: A Difference of Opinion
Authors: Ciccone JR , Nadeau RE
Published: July 2015

The issue of competency to stand trial has long been argued by lawyers and phychiatrists in private discussions and open court, in brief letters and lengthy books. There has been effort directed toward establishing legal and psychiatric standards which, despite the shortcomings of our language and knowledge, could be applied evenly and logically to determine a person's competency to stand trial [1–3].
Postmortem Chemistries on Blood with Particular Reference to Urea Nitrogen, Electrolytes, and Bilirubin
Authors: Coe JI
Published: July 2015

A great deal of work has been done on postmortem chemistry of blood, cerebrospinal fluid, and vitreous humor with the hope that biochemical abnormalities which exist during life can be demonstrated from examination of postmortem material. The author began investigation into this field in 1967 by performing tests on both serum and vitreous humor taken from cadavers at varying postmortem intervals. The results of the investigations on vitreous humor have already been published [1,2] as well as some of the studies on postmortem serum [3,4]. The following material represents part of the original investigation and has been presented orally both formally [5] and informally, but has never been available for review by other people interested in the subject.
Systems Analysts Look at the Crime Laboratory
Authors: Benson WR , Stacy JE , Nicol JD
Published: July 2015

Systems analysis has emerged as a scientific discipline only in recent times; nonetheless, the study of systems is by no means a new pursuit of the human mind. The development of a set of standards and procedures or a concept of society or even a theory of the universe is as old as history itself. Man has always sought to find relationships that could provide satisfactory explanations for what he sees, hears, or imagines. Indeed, the history of both the physical and social sciences has been a continuing enlargement upon this theme. The scientific method of inquiry, which demands relevant and dependable relationships for its results, is systems analysis in its broadest sense.
L-DOPA Poisioning
Authors: Sturner WQ , Garriott JC
Published: July 2015

The medical therapy for Parkinson's disease, especially in younger patients, has recently included L-DOPA, the generic name for levodihydroxyphenylalanine. The prescribed therapeutic amounts of this drug have been suggested and the resulting circulating blood concentrations documented [1]. We have recently observed what appears to be the first death from an overdose of this drug, affording an opportunity to perform distribution studies on the tissues and fluids. Meprobamate and flurazepam (Dalmane) were also recovered, but in trace to therapeutic amounts.
Toxicological Data for Fatalities due to Carbon Monoxide and Barbiturates in Ontario—A 4-Year Survey, 1965–1968
Authors: Cimbura G , McGarry E , Daigle J
Published: July 2015

The Toxicology Section of the Centre of Forensic Sciences is the only provincial forensic laboratory in Ontario and thus provides toxicological services for the entire Province in investigations of a criminal or medicolegal nature.
Analysis and Survey of Marine Fuels and Pollution Samples
Authors: Rouen RA , Reeve VC
Published: July 2015

The types of oil spills generally encountered in the harbors of British Columbia have consisted of oil mixtures from the ships' bilges. These mixtures are generally bunker fuels, intermediate diesel fuels, and lubricating oils. Such spilled petroleum mixtures have been collected from the surface of the water or from beaches, log booms, and piers [1]. Collected samples may range in volume from one litre to microlitre quantities.
A Review of “Flight Characteristics and Stain Patterns of Human Blood”
Authors: Vagnina LL
Published: July 2015

Mr. MacDonnell's object in writing Flight Characteristics and Stain Patterns of Human Blood was to advance the state of the art in an area of forensic science that has been neglected. The author states that the guides are just suggestions and not firm rules and will rarely be conclusive in and of themselves. The research was initiated because of the author's belief that there is a deficiency in documented knowledge regarding bloodstain evidence. Literature searched by the author contained little beyond elementary rules for establishing the direction of travel or simple correlations of a general character as a function of the distance a drop falls. The literature search included Dr. Kirk's text on Crime Investigation. However, the author states that the most comprehensive source of accurate information on this subject to date is the 1955 affidavit of the late Dr. Paul Kirk regarding his investigation of the Dr. Samuel Sheppard murder case. Mr. MacDonnell often refers to Dr. Kirk and states that in all instances the current investigation has verified both the accuracy and conclusions of Dr. Kirk's earlier work.
Renaissance for the Transsexual: A New Birth Certificate
Authors: Schroeder LO
Published: July 2015

The twentieth century has seen tremendous advances in medicine. In many instances collaborative efforts with law are needed for the maximum implementation of these. Compulsory vaccination is an example, for the applicable public health statutes designed to eliminate smallpox required a United States Supreme Court decision to establish their validity. The area of organ transplants with its attendant complicated problems concerning the moment of death, informed consent, and the right to the deceased's body is another medical field fraught with legal problems. The list is long. Added recently is concern over obtaining a new birth certificate for the transsexual who has undergone surgery to change or reassign his sex, a certificate which will reflect this change.
Pathologic Criteria of Radiation Injury
Authors: Warren S
Published: July 2015

The many lesions associated with response to radiation are best considered on the base of dose, amount of body irradiated, duration of the radiation exposure, and time since exposure. Ionizing radiation of different types—X-ray, radium, neutrons—produces essentially similar effects, allowing for differences in dose and in linear energy transfer. The symptomatic reaction to overwhelming whole-body doses of radiation—thousands of rads—is almost immediate disorientation or coma with prompt death. There is no distinctive lesion present at death because of insufficient time for its development. In those few who survive some hours, generalized erythema appears. When tissues are examined histologically, there is little obvious change. Necrosis may be present in lymphoid tissues, as well as congestion and phagocytosis of lymphocytes and red blood cells by reticulum cells and macrophages. Mitosis is absent in tissues where normally active, such as germinal centers of lymphoid tissue, hematopoietic tissue in general, crypts of the intestinal glands, and testes.
Examination of Gunshot Residues
Authors: Stone IC , Petty CS
Published: July 2015

The examination of gunshot residues in a forensic science laboratory should be a series of integrated procedures. The Southwestern Institute of Forensic Sciences includes both the Office of the Medical Examiner and the Criminal Investigation Laboratory. Accordingly, a unique opportunity for comprehensive and coordinated examination of gunshot residues presents itself. This paper deals with those aspects involving items of clothing and deposits which may be present on the hand; the pathological evidence is not covered.
Discoloration Effect of Diluents in Contraband Cocaine
Authors: Dugar S , Catalano T , Cerrato R
Published: July 2015

In the course of police investigations of confiscated drug samples, cocaine mixtures of various shades from white to brown have been encountered and analyzed at the Crime Laboratory of the New York City Police Department. Slight discoloration of cocaine mixtures is within reason, in view of the reported discoloration of lactose [1,2] and of lactose-amphetamine [3–5] upon storage.
An Analysis of Code-Mixing and Code-Switching in EFL Teaching of Cross Cultural Communication Context
Authors: Kustati Martin
Published: July 2015

The objective of the paper is to determine types of code-mixing and code-switching made by teachers and students in EFL cross cultural communication class and to identify reasons for the emergence of code-switching and mixing in the classroom. The data was obtained through observation and in-depth interviews of the second year students of undergraduate program of English in Tarbiyah Faculty, IAIN IB Padang. The finding showed that tag-switching, intra-sentential, inter-sentential, and intra-word were commonly used by EFL teachers and students in classroom. It was also found that the teachers used code-mixing and switching in the process of clarifying certain issues to make them more comprehensible to students. Teachers also do these kinds of switching during their attempt to promote relationship with students, to switch the topic, and to persuade or motivate students to be more engaged in learning English. Meanwhile, the students mix and switch their language to overcome their lack of knowledge of English. It is expected that this study provided empirical evidence to advise on their optimal uses in EFL teaching of State Institute for Islamic Studies.Copyright © 2014 by Al-Ta'lim All right reserved
Students’ Ability and Difficulties in Understanding English Text (A Study at English Program IAIN Padangsidimpuan)
Authors: Harida Eka Sustri
Published: July 2015

This study deals with the ability of the students to understand English texts and types of their reading strategies. It is believed that reading strategies help students improve their reading comperehension.  Based on this theory, then, the qualitative research was carried out to describe students’ reading ability and types of strategy they used. Data were collected through questionnaires that have been distributed to 34 students.  They were also observed and tested.  It was found that the students’ ability in understanding text was still low. They had many problems in understanding English texts because they did not apply appropriate reading strategies in their reading activities. Their low reading comprehension was due to their lack of reading strategies. Copyright © 2014 by Al-Ta'lim All right reserved
Natriureticus peptidek mérése szívelégtelen betegekben: a helyes laboratóriumi és klinikai gyakorlat
Authors: Kovács L. Gábor , Nyolczas Noémi , Habon Tamás , Sepp Róbert , Piroth Zsolt , Hajas Ágota , Boncz Imre , Tomcsányi János , Kappelmayer János , Merkely Béla
Published: July 2015

Cardiac natriuretic peptides (BNP, NT-proBNP) play a pivotal role in cardiovascular homeostasis, mainly due to their roles in vasodilatation, natriuresis, diuresis and due to their antiproliferative properties. Proper measurement of the natriuretic peptide levels may help differentiate between respiratory and cardiac forms of dyspnea, diagnose early forms of heart failure, evaluate severity of heart failure (prognosis) and monitor the efficacy of therapy. In many countries natriuretic peptide levels are being used as one of the earliest diagnostics tools to evaluate the involvement of the heart. Current theoretical and clinical data confirm the importance of natriuretic peptides in routine healthcare. These roles are clearly described in international recommendations and guidelines. In the current review the authors discuss the problems of the measurement of natriuretic peptides in Hungary, including several aspects related to laboratory medicine, cardiology and health economy. Orv. Hetil., 2015, 156(31), 1235–1245.
Child Discipline and African American Parents with Adolescent Children: A Psychoeducational Approach to Clinical Mental Health Counseling
Authors: Adkison-Johnson Carla
Published: July 2015

Parents from all backgrounds often grapple with child-rearing issues when their children reach adolescent age. For African American families, the task of addressing problematic adolescent behaviors is complicated by their interaction with external systems (e.g., agencies, schools, legal systems) whose workers often struggle to meet the mental health and social service needs of an increasingly diverse society. Clinical mental health counselors are ethically bound to be knowledgeable about the cultural diversity of individuals and families and about changes in cultural expectations and values. The primary focus of this article is to lay the foundation for a psychoeducational approach to addressing child discipline with African American parents who have adolescent children living at home. A five-week psychoeducational model is presented to inform African American parents of current research and discussions on African American child disciplinary methods.
Electronic structure and chemical bond nature in Cs2PuO2Cl4
Authors: Teterin Yury , Maslakov Konstantin , Ryzhkov Mikhail , Teterin Anton , Ivanov Kirill , Kalmykov Stepan , Petrov Vladimir , Suglobov Dmitry
Published: July 2015

X-ray photoelectron spectral analysis of dicaesiumtetrachlorodioxoplutonate
(Cs2PuO2Cl4) single crystal was done in the binding energy range 0-~35 eV on
the basis of binding energies and structure of the core electronic shells
(~35 eV-1250 eV), as well as the relativistic discrete variation calculation
results for the PuO2Cl4 (D4h). This cluster reflects Pu close environment in
Cs2PuO2Cl4 containing the plutonyl group PuO2. The many-body effects due to
the presence of cesium and chlorine were shown to contribute to the outer
valence (0-~15 eV binding energy) spectral structure much less than to the
inner valence (~15 eV- ~35 eV binding energy) one. The filled Pu 5f
electronic states were theoretically calculated and experimentally con-
firmed to present in the valence band of Cs2PuO2Cl4. It corroborates the
suggestion on the direct participation of the Pu 5f electrons in the chemical
bond. The Pu 6p atomic orbitals were shown to participate in formation of
both the inner and the outer valence molecular orbitals (bands), while the
filled Pu 6p and O 2s, Cl 3s electronic shells were found to take the largest
part in formation of the inner valence molecular orbitals. The composition of
molecular orbitals and the sequence order in the binding energy range 0-~35
eV in Cs2PuO2Cl4 were established. The quantitative scheme of molecular
orbitals for Cs2PuO2Cl4 in the binding energy range 0-~15 eV was built on the
basis of the experimental and theoretical data. It is fundamental for both
understanding the chemical bond nature in Cs2PuO2Cl4 and the interpretation
of other X-ray spectra of Cs2PuO2Cl4. The contributions to the chemical
binding for the PuO2Cl4 cluster were evaluated to be: the contribution of the
outer valence molecular orbitals -66 %, the contribution of the inner valence
molecular orbitals -34 %.
Dynamic behavior of the HTR-10 reactor: Dual temperature feedback model
Authors: Hosseini Seyed
Published: July 2015

The current work aims at presenting a simple model for PBM-type reactors'
dynamic behavior analysis. The proposed model is based on point kinetics
equations coupled with feedbacks from fuel and moderator temperatures. The
temperature reactivity coefficients were obtained through MCNP code and via
available experimental data. Parameters such as heat capacity and heat
conductivity were carefully analyzed and the final system of equations was
numerically solved. The obtained results, while in partial agreement with
previously proposed models, suggest lower sensitivity to step reactivity
insertion as compared to other reactor designs and inherent safety of the
design.
Radon exhalation rates of some granites used in Serbia
Authors: Nikolic Mladen , Simovic Rodoljub
Published: July 2015

In order to address concern about radon exhalation in building material,
radon exhalation rate was determined for different granites available on
Serbian market. Radon exhalation rate, along with mass exhalation rate and
effective radium content were determined by closed chamber method and active
continuous radon measurement technique. For this research, special chambers
were made and tested for back diffusion and leakage, and the radon
concentrations measured were included in the calculation of radon exhalation.
The radon exhalation rate ranged from 0.161 Bq/m2h to 0.576 Bq/m2h, the mass
exhalation rate from 0.167 Bq/kgh to 0.678 Bq/kgh, while the effective radium
content was found to be from 12.37 Bq/kg to 50.23 Bq/kg. The results indicate
that the granites used in Serbia have a low level of radon exhalation.
Development of a Highway Bridge Deck Using Ultra-High Performance Fiber- Reinforced Concrete
Authors: Kosaka Takashi , Kanaji Hidesada , Ichinomiya Toshimichi , Saito Kimio
Published: July 2015

In urban expressways, lightweight orthotropic steel decks are widely used. However, fatigue cracks occur in the orthotropic steel deck. To address this problem, we developed a light weight highway- bridge deck with high durability using ultra-high performance fiber-reinforced concrete (UHPFRC). The slab of the UHPFRC deck is 40 mm thick and the rib height is 83 mm. A UHPFRC deck has very thin components as compared with the conventional concrete deck, thus we validated the safety of this thin deck structure using finite element analysis. We also verified its fatigue durability using the wheel running fatigue test. In load conditions twice as high as those accounted for in the original design, several cracks of 0.04 mm or less developed on the side surface of a rib. However, the stiffness of the deck was not compromised. Therefore, we verified the high fatigue durability of the UHPFRC deck and feasibility for its application.
Compensation of phase nonlinearity of liquid crystal spatial light modulator for high-resolution wavefront correction
Authors: Zhang H. , Zhou H. , Li J. , Qiao Y. J. , Si J. , Gao W.
Published: July 2015

The ability of phase modulation enables liquid crystal spatial light modulator (LCSLM) to control wavefront. However, the disadvantage of its inherent nonlinear phase response will decrease the wavefront control accuracy. In this paper, a compensation for the nonlinear phase response is proposed based on Inverse Interpolation method. Characteristic curve of phase retardation versus gray levels for a 256×256 pixels phase-only LCSLM has been measured and calibrated by Inverse Interpolation. A mapping relationship between input gray levels and driving gray levels has been built and recorded by a linear look-up table ANTI2.LUT. The nonlinear error of the phase drops from 15.9% to 2.42% by using ANTI2.LUT. Further more, the mapping curve of ANTI2.LUT is almost consistent with 290.LUT from the manufacturer, which proved the efficiency of the compensation of phase nonlinearity. Finally, the distorted wavefront caused by a liquid crystal flake is corrected using LCSLM based on ANTI2.LUT. Experimental results show that the peak-valley value of the distorted wavefront decreases from 1.56λ to 0.26λ (λ =0.6328 μm), the root-mean-square value decreases from 0.25λ to 0.02λ and the Strehl ratio of diffractive spots increases from 0.08 to 0.97. So LCSLM can be applied to realize high-precision and high-resolution wavefront correction with linear phase response.
Metastatic Neck Node - A Study of 60 Cases
Authors: Rahman Md Mazibur , Ali Mohammad Idrish , Haque Md Momenul , Talukder Md Harun Ar Rashid , Rahman Masroor , Islam Md Tariqul
Published: July 2015

Objectives: To find out the incidence, distribution, level and staging of cervical nodal metastasis.Methods: This is a retrospective study carried out in the Department of Otolaryngology Head and Neck Surgery, BSMMU and Dhaka Medical College Hospital, Dhaka, from January 2005 to December 2005. Total 60 cases were studied. The diagnosis was made by detailed history, clinical examination, investigation. Analyzed data presented by various tables, graphs and figures.Results: In this study primary lesion was identified in 88.33% cases and undetected cases were 11.7%, 81.13% were squamous lining and 18.87% non-squamous. Highest frequency of metastatic node was found with carcinoma larynx (36.66%). Male and age of 41-50 years was had highest incidence. About 43.33% had dysphagia, 38.33% had hoarseness of voice, 13.33% respiratory distress, 8.33% strider and 8.33% had referred otalgia. The disease was unilateral 81.67%, 63.33% multiple node involvement, highest involvement in level II & III and stage N2 larynx was commonest site of involvement.Bangladesh J Otorhinolaryngol; April 2015; 21(1): 17-22
Complications of Parotid Surgery  A Study of 30 Cases
Authors: Biswas Ashim Kumar , Akhtar Nasima , Debnath Timir Kumar , Sarkar Anita , Salam Kazi Sameemus
Published: July 2015

Objectives: To find out the complication of parotid surgery and association of nerve injury with the type of disease pathology and type of parotid surgery.Methods: This cross-sectional study on 30 cases was carried out in the Department of Otolaryngology-Head & Neck Surgery, Bangabandhu Sheikh Mujib Medical University & Dhaka Medical College Hospital, Dhaka from September 2011 to September 2012. After taking history, clinical examination and investigation (FNAC, CT-scan) diagnosis was confirmed by histopathological examination.Results: In this study, lowest age was 14 years and highest age 65 years, male to female ration was 1.1:1. 83.33% cases were benign and 16.67% cases were malignant. Most of benign tumors was pleomorphic adenoma (80%). 88% cases involved in superficial lobe. Temporary facial nerve paresis was the most common postoperative complication (29.97%); 6.6% cases develoved permanent facial palsy and hypoesthesia of ear was 26.04%. Most patient regained normal facial nerve function within 6 months from the onset.Conclusion: Marginal mandibular nerve is the most common branch of facial nerve injury.Bangladesh J Otorhinolaryngol; April 2015; 21(1): 23-27
Tracheostomy in Intensive Care Unit: Indications, Benefits and Complications
Authors: Mahmud Muddassir , Hossain Md Abul , Sarkar Md Zakaria , Hossain HS Mubarak , Islam Md Obaidul , Ahmed Mesbah Uddin , Sattar Md Abdus
Published: July 2015

Objectives: To see the common indications of tracheostomy in ICU in this country, to compare the benefits over endotracheal intubation and to find out the pattern of complication of tracheostomy in the ICU to enrich the ideas for minimizing the complications.Methods: This is a cross sectional study was carried out at the Department of Otolaryngology and Head-Neck Surgery and Intensive Care Unit of Bangabandhu Sheikh Mujib Medical University & Dhaka Medical college Hospital, Dhaka from October 2012 to march 2013.This study includes all ICU patients, irrespective of age and sex, whose tracheostomy has done after admission in Intensive Care Unit.Results: The study revealed that the commonest indication of tracheostomy in the ICU was head injury with history of RTA (27.5%), followed by post operative case of Intracranial space occupying lesion (25%). Next common indications were Guillain-Barre syndrome (15%), cerebrovascular accident (12.5%), Maxillofacial trauma (5%), RTA with cervical spinal cord injury (5%), and post operative pneumonia (5%)., Regarding benefits of tracheostomy over endotracheal intubation in ICU we found that 100% patient had greater comfort.The rate of complication of tracheostomy in ICU was 10% in this study. Surgical emphysema was the commonest complications (5%) followed by haemorrhage(2.5%) and tube displacement(2.5%).Bangladesh J Otorhinolaryngol; April 2015; 21(1): 28-32
Significance of 18F-fluorocholine PET/CT positive pulmonary lesions in prostate cancer patients
Authors: Baskin A. , Amzalag G. , Buchegger F. , Miralbell R. , Ratib O. , Zilli T. , Garibotto V. , Rager O.
Published: July 2015

Aim: To assess the frequency and the significance of incidental pulmonary lesions with 18F-fluorocholine (18F-FCH) PET/CT in prostate cancer (PCa) patients. Patients, methods: 225 consecutive PCa patients referred for 18F-FCH PET/CT (median age 68 years) were retrospectively evaluated for the presence of lesions in the lungs: 173 referred for restaging and 52 for initial staging regarding their high risk of extra prostatic extension. The final diagnosis was based on histopathological or on clinical and radiological follow-up. Results: 13 patients had 18F-FCH positive pulmonary and 8 patients malignant lesions: 5 patients (38%) had a primary lung cancer (2 squamous cell carcinomas, 1 papillary adenocarcinoma, 1 typical pulmonary carcinoid, 1 bronchioloalveolar carcinoma) and 3 patients (23%) PCa metastases. Benign lesions were found in 5 subjects (38%). SUVmax and maximum diameter were neither significantly different in primary and metastatic tumors nor between malignant and benign lesions. Conclusions: Although our results suggest that incidental uptake in the lungs in PCa patients are nonspecific, their detection may have a significant impact on patient management knowing that more than 60% represent malignant diseas.
Study on Damage Effect of Concrete Bridge Model under Blast Loading
Authors: Chen Lei , Jiang Tian Hua , Gong Jie , Cai Lu Jun
Published: July 2015

With the rapid development of transportation, the vulnerability of bridge under blast loading has more and more attracted people's attention. To ensure the safety of the bridge under the impact of blast loading is very important. This article describes the current situation of bridge structure antiknock research in China and other countries. What’s more, pointed out the shortcomings of existing research and presented that the antiknock research of bridge structure should combine numerical simulation with model test at the same time. This article researches the stress, strain and bridge damage rule of 1: 5 model of T-beam Bridge under explosion effect of small doses explosive.
Thoughts of Alleviating the Disadvantage Effect of Static Sinking-Pile
Authors: Chen Ke Lin , Lei Jin Bo , Yue Teng Sheng , Zhou Xing
Published: July 2015

The soil surrounding of the pile will be compacted during static sinking-pile, higher pore water pressure will arise, which will cause compaction effect and affect the surrounding engineering environment in the soft soil area. In order to explore the new approach for alleviating the disadvantage effect of static sinking-pile effect, the pipe-pile with hole technique, tapered pipe-pile with hole technique and tapered-poled pipe-pile with hole technique have been put forward on the base of analyzing the static sinking-pile phenomena, the character of the tapered pipe-pile with hole has been analyzed, which differs from the poled pipe-pile with hole. The pipe-pile with hole technique is beneficial to perfect the method of soft soil disposal, the new notion has been afforded for alleviating the disadvantage of static piling effect.
Seismic Behavior of Partially Encased Concrete Composite Columns
Authors: Zhao Gen Tian , Hu Qiu Wen
Published: July 2015

In order to learn seismic behavior of partially encased concrete composite columns, experimental study on five H steel partially encased concrete composite columns was carried out under low cyclic loading. The main parameters were the axial compression ratio, steel ratio, shear span ratio. The test results show that deformation ability decreases as axial compression ratio increases; and as steel ratio increases, horizontal bearing capacity and deformation ability increases.
Parameter Optimization of Liquid Viscous Damper Based on Energy and Control Indexes under Random Excitation
Authors: Wang Li Xian , Liu Qi Yang , Di Sheng Kui , Xiang Chang Sheng
Published: July 2015

The damper parameter of a concrete-filled steel tube arch bridge is optimized. Random Fourier spectrum based on physical model is used to synthesis the random time-domain excitation. Four evaluation functions have been constructed as optimization of the objective functions based on energy dissipation and structural control indexes. Comparing two energy evaluation function combinations and traditional control evaluation functions, the damper optimization parameters have been obtained. Result shows that: Optimized damper parameters of concrete-filled steel tubular arch bridge under various seismic waves have high damping effect. After introducing the energy dissipation indexes, evaluation functions avoided the extreme value disadvantages of the traditional target, the final optimization results could be more economical and practical.
Study on Dispersion of Carbon Nanotubes in Pb-Sn Electroplating Bath
Authors: Hu Zheng Xi , Jie Xiao Hua
Published: July 2015

In order to get homogeneously dispersed carbon nanotubes suspension for composite plating, carbon nanotubes were ball milled for different times and polycyclic acid (PA) was used as dispersant in this work. Sedimentation ratio was calculated by measuring the absorbance of suspensions and friction coefficient of the composite coatings was measured by friction tester. Dispersant content and ball milling time on the dispersive stability of suspension were studied. The dispersion mechanisms were discussed. The results showed that PA could effectively disperse carbon nanotubes in Pb-Sn electroplating solution. When the volume percent of PA was 0.3%, milling time was 6h and the milling speed was 300r/min, the sedimentation ratio was the smallest. The composite coatings had the smallest friction coefficient. Besides, the mechanism of PA effectively dispersing CNTs in Pb-Sn electro plating solution was electrostatics stabilization.
Synthesis of Thiourea-Formaldehyde Resin for Cr3+ Removal
Authors: Mansuer Mulati , Wu Peng Fei , Zhu Zhi Rong , Hao Zhi Xian
Published: July 2015

The thiourea (T) -formaldehyde (F) resins with different lamellar crystal structures were synthesized by varying the relative T/F molar ratio in acidic aqueous solution at 55°C. By maintaining the amount of formaldehyde more than that of thiourea, the polymerization reaction allows one to transform the lamellar crystal fragments into cross-linked microspheres, TF resin that has a somewhat high absorption capability to Cr3+.
Experimental Analyses on Energy Absorption Property of Aluminum Honeycomb under Out-of-Plane Compression
Authors: Zhao Jing Hui , Wang Jian Feng , Liu Tao , Yang Na , Duan Wen Jie , He Zhong Qing
Published: July 2015

Aluminum honeycomb is a lightweight material with high strength and strong capacity of energy absorption. In order to research energy absorption characteristic of aluminum honeycomb material, quasi-static and dynamic out-of-plane compression experiments are carried out on a double-layer aluminum honeycomb impact attenuator of one FSAE racing car. Plateau stress (PS), specific load (SL), mass specific energy absorption (MSEA), volume specific energy absorption (VSEA) and other parameters of the tested aluminum honeycomb under both quasi-static and dynamic impact conditions are analyzed. The results show that the tested aluminum honeycomb impact attenuator has good energy absorption capacity to meet the collision requirements. Furthermore, under the condition of dynamic impact, the energy absorption capacity of this honeycomb improves compared with that under the condition of quasi static compression.
A Car Exhaust System Hook Position Optimization Analysis
Authors: Liao Shu Hua , Zhang Wei , Liu Li , Liu Guo Bing
Published: July 2015

Based on the study of a car exhaust system, use HyperMesh Software and its build-in finite element software to build FEM , Analysis the free modal of exhaust system, Calculate its natural frequency, Then optimize the position of hook based on the ways of average degrees of freedom (ADDOFD), Makes its modal frequencies avoiding engine idling frequency. Finally, through the calculated constraint mode, Verify whether coupling with the excitation frequency of engine, and further verify the reasonableness of the position of the hook.
The True Stress Strain Curve of Cr8 Steel Solved by the Method of Cone Inversion
Authors: Wang Lei Chuang , Quan Fang , Song Jian , Zhao Lian Gang , Yang Jie
Published: July 2015

To solve the true stress strain of Cr8 steel, a method of cone inversion is used to deal with the high temperature tensile data. Based on the precise determination and description of sample size, the test data is analyzed in the SSC(Stress strain calculator) software developed on MATLAB, and the true stress strain curve of Cr8 is drew. The true stress strain curve calculated by this method is smooth and continuous, and more identical to the principle of metal elastic-plastic deformation process, which shows a good promotion value.
Nanocrystalline Materials for Hybrid Photovoltaic Devices
Authors: Mashreki Tarek I.A. , Afzaal Mohammad
Published: July 2015

Nanocomposites containing inorganic semiconductor nanomaterials are of tremendous interest for low-cost 3rd generation solar cells. A variety of possible materials and structures could be potentially used to reduce processing costs which is highly attractive for large scale production of solar cells. Controlling the morphology and surface chemistry of nanomaterials remains a key challenge that has major knock-on effects in devices. Herein, an attempt is made to highlight some of the challenges and the possible solutions for depositing high quality thin film composites for solar cell devices.
Synthesis and Characterization of Nb-Doped TiO2 Thin Films Prepared by RF Magnetron Sputtering
Authors: Dobromir Marius , Apetrei Radu Paul , Rogachev A.V. , Kovalenko Dmitry L. , Luca Dumitru
Published: July 2015

Amorphous Nb-doped TiO2 thin films were deposited on (100) Si and glass substrates at room temperature by RF magnetron sputtering and a mosaic-type Nb2O5-TiO2 sputtering target. To adjust the amount of the niobium dopant in the film samples, appropriate numbers of Nb2O5 pellets were placed on the circular area of the magnetron target with intensive sputtering. By adjusting the discharge conditions and the number of niobium oxide pellets, films with dopant content varying between 0 and 16.2 at.% were prepared, as demonstrated by X-ray photoelectron spectroscopy data. The X-ray diffraction patterns of the as-deposited samples showed the lack of crystalline ordering in the samples. Surfaces roughness and energy band gap values increase with dopant concentration, as showed by atomic force microscopy and UV-Vis spectroscopy measurements.
Laser-Induced Modification of Properties of CdZnTe Crystals
Authors: Gnatyuk Volodymyr A. , Vlasenko Oleksandr I. , Levytskyi Sergiy N. , Aoki Toru
Published: July 2015

The photoconductivity (PC) spectra of CdZnTe (CZT) semiconductor solid solutions obtained from different manufacturers were investigated before and after irradiation with nanosecond laser pulses. Depending of energy density, irradiation of CZT crystals resulted in an increase in the photosensitivity, high-energy shift of the PC spectrum maximum and transformation of its profile. Laser processing with the certain energy densities improved homogeneity in the crystal surface area and provided equalization of structural characteristics in the surface region and bulk of the samples. Irradiation of CZT crystals pre-coated with an In electrode film caused rectification in the I-V characteristics because of the formation of a barrier structure. The application of the obtained In/CZT/Au diodes with low leakage current as X/γ-ray detectors is considered.
Work Measurement, Identification and Control
Authors: Belakova Dana , Ziemele Inese
Published: July 2015

The research has been conducted in the framework of the project financed by ESF “Practical application of labour relations and work safety normative acts in sectors and enterprises” implemented by the Employers’ Confederation of Latvia (LDDK) in cooperation with “DA Kompetentie Specialisti”, Ltd. The elaborated method of work measurement can be used in any sector. In the framework of the study, two pilot projects have been implemented – at a furniture manufacturing company and a cleaning service company.
Photon Beam Transmission Through Microstructures
Authors: Jabłonski Ryszard , Al Tabich Amin
Published: July 2015

At present there are many researches and forums concerning the dimensions of photon. The discussions are very active, there are many hypothesis and there is no univocal conclusion. We decided to approach the problem experimentally, trying to give an answer to the question: what is the possibly smallest size of microbore/microgap the photon can’t pass through. In these experiments the specially formed single photon beam was directed on the microstructure and the number of photons passing through was measured. Also we experimented with the photon size using Mach-Zender interferometer.
A Novel hig E Aptamer Biosensor Base on Core-Shell Fe3O4@Au Magnetic Composite Nanoparticles
Authors: Huang Guo Yin , Ma Long Fei , Guan Ming Yuan , Liang Jin Tao , Huang Yong , Li Gui Yin
Published: July 2015

In this paper, a novel hIg E aptamer biosensor was designed base on the core-shell Fe3O4@Au magnetic composite nanoparticles (Fe3O4@Au NPs). Firstly, Fe3O4@Au NPs were prepared by one-step reduction process with Fe3O4 nanoparticles (Fe3O4 NPs) as magnetic core and hydroxylamine hydrochloride as deoxidizer. Then, the morphology, composition, and properties of Fe3O4@Au NPs were characterized by scanning electron microscope (SEM), fourier translation infrared spectroscopy (FT-IR), vibrating sample magnetometer (VSM) and so on. Lastly, Human immunoglobulin E (hIg E) was used as the model analyte, a hIg E aptamer biosensor was presented which the hIg E antibody is covalently immobilized as the capture probe on Fe3O4@Au NPs surface, and hIg E aptamer was used as the detection probe. After the hIg E antigen was captured, the ascorbic acid 2-phosphate (AAP) formed ascorbic acid (AA) in the presence of alkaline phosphatase (ALP). The AA reduced the silver ions (Ag+) in the solution to silver metal that preferentially deposited on surface of the Fe3O4@Au NPs. The amount of deposited silver could be quantified using the electrochemical methods. The oxidation current of Ag0 was linear with the concertration of hIg E over the range 0.25~2.0 μg/mL. Therefore, the hIg E aptamer biosensor possessed higher sensitivity, low detection limit and rapid response speed.