bluuebunny/crossref_metadata_2025 huggingface dataset:
Possibility of Thermoelectric Oxide for Thermal Sensors
Authors: Seetawan Tosawat
Published: January 2016

The thermoelectric effects in oxide materials are developed to the Seebeck effect for thermal sensing. Thermal sensors are the thermal converters, in which an electrical, magnetic, mechanical, radiation, chemical signal are measured by converting it into heat and measuring the resulting temperature changes in the device. This proposes an analysis the electrical converters and radiation sensors by using single−junction of p−Ca3Co4O9 and n−CaMnO3 materials are presented into possible thermal sensing. Several thermal converters are measured the signal electrical resistivity, and Seebeck coefficient depended on temperature. Thermal radiation sensors are included the sensitivity, electricity, and specific detectivity. For application, thermoelectric oxide cell can be fabricated crowbar circuit for protection an overvoltage condition of a power supply which it yield 1.2 s turn off switch.
Preparation and Electrical Behaviour of BaCeO3 Ceramics
Authors: Boothrawong Narongdetch , Phatungthane Thanatep , Sanjoom Kachaporn , Sweatman Denis Russell , Rujijanagul Gobwute
Published: January 2016

Barium cerate (BaCeO3) ceramics were synthesized via a solid-state reaction technique. Pure phase perovskite powders were obtained at a calcination temperature of 1200 °C. BaCeO3 ceramics were fabricated from the calcined powder and their properties were investigated. XRD data of the ceramics was consistent with an orthorhombic symmetry. However, the pure phase perovskite of the BaCeO3 ceramics was only observed for sintering temperatures less than 1500°C. The microstructural analysis indicated that grain sizes of the ceramics increased with increasing sintering temperature. The dielectric constant of the samples had a constant value over a very wide range of temperature. All ceramics showed very good dielectric performance where the ceramics sintered at 1450 °C showed the highest dielectric constant.
Self-Propagating High-Temperature Synthesis of Si-SiC Composite Powder
Authors: Chanadee Tawat , Niyomwas Sutham
Published: January 2016

Silicon-silicon carbide (Si-SiC) composite powders were synthesized by in-situ self- propagating high-temperature synthesis using rice husk ash (RHA)/carbon/Mg as precursors in argon atmosphere. The as-SHS powders were leached by two leaching steps. The microstructure and chemical composition of the obtained Si-SiC composite powders were examined using scanning electron microscope (SEM) and x-ray diffractometer (XRD), respectively.
Synthesis and Dielectric Properties of [(K0.5Na0.5)0.935Li0.065]NbO3 Added with Mn for Piezoelectric Ceramic
Authors: Kongphimai Jukkrit , Wattanasarn Hassakorn , Seetawan Tosawat
Published: January 2016

[(K0.5Na0.5 )0.935Li0.065]NbO3–Mn ceramics (Mn = 0, 1.50 and 3 mol %) (KNNL–Mn) were synthesized and measured dielectric properties. Which the K2CO3, Na2CO3, Li2CO3, Nb2O5 and MnO2 (0, 1.5, 3 mol%) were mixed by ball milling method and calcined powders at 1,073 K for 4 h and the sintered at 1,343 K for 2 h in air. The crystal structure was analyzed by XRD technique, the crystallite size was identiﬁed by Scherrer’s equation and calculated the theoretical density. It was found that, the XRD patterns of the KNNL–Mn ceramics added with Mn contents was indicated the tetragonal structure and. the crystallite size of Mn = 0, 1.50 and 3 mol% about 32 nm, 34 nm and 57 nm, respectively. The physical properties of the KNNL–Mn ceramics was found that the maximum theoretical density of 90.79 % for Mn = 1.50 mol%. The dielectric constant was found to be maximum of 909.77 and dielectric loss of 0.48 for Mn = 3 mol%.
The Effects of Sintering Temperature on the Dielectric Properties of Sr(FeNb)0.5O3 Doped with Ba(Zr0.25Ti0.75)O3
Authors: Tawee Lalita , Sanjoom Kachaporn , Phatungthane Thanatep , Tunkasiri Tawee , Rujijanagul Gobwute , Sweatman Denis Russell
Published: January 2016

In this work, ceramics of Sr(Fe0.5Nb0.5O3) doped with Ba(Zr0.25Ti0.75)O3 (10 mol%), were synthesized by a solid-state reaction technique. The powders were calcined at 1300 °C for 12 hr and then sintered at 1400-1500 °C for 4 hr. Effects of sintering temperature on the properties of the ceramic were studied. Phase formation, microstructure, and dielectric properties were investigated. The ceramics exhibited a perovskite structure with cubic symmetry. Grain size of the ceramics increased with increasing the sintering temperature. The ceramics exhibited a dielectric relaxation like behavior with high dielectric constants over a wide temperature range
Ultrasonic Assisted Enhancement in Cotton Dyeing with Natural Colorants Extracted from Excoecaria Bicolor
Authors: Ohama Ploysai , Kumpun Saowanee
Published: January 2016

The dyeing of cotton fabrics using Excoecaria bicolor (Excoecaria cochinchinensis Lour.) as a natural dye has been studied in both conventional and ultrasonic techniques. Excoecaria bicolor leaves were extracted by various extracting procedures, using different solvents. The extractability of dye from natural origin using power ultrasonic was also evaluated in comparison with conventional heating. The results of dye extraction indicate that power ultrasonic is rather effective than conventional heating at low temperature and short time. The color of each dyed material was investigated in terms of the CIELab (L*, a* and b*) values.
Propagation of Massless Spin-1 Particle between Two Media
Authors: Maksuwan Atirat
Published: January 2016

In general explanation for propagation of electromagnetic wave at a plane between two media of different dielectric properties. The description of this phenomenon be based on the actual physical process of the well know interpretation of the classical rays with the polarization vectors. In this research, we investigate this situation by using the knowledge of the amplitude of emission and absorption of massless spin-1 particle (photon) excitation by the emitter and detector, respectively. By using time evolution process based on vacuum-to-vacuum transition amplitude in quantum (field) theory QED formalism. This process shows that the propagation of photon excitation by the external sources is given with an explanation of the amplitude of propagation between different spacetime points from an emitter to a detector, which exclude with the Feynman propagator. The purpose of this research is developing a formalism based on the actual physical process of photons propagate from an emitter to a detector. It shows the consistency to the actual physical process of interpretation of the polarization vectors in the classical rays.
Biosorption of Zn(II) from Aqueous Solution by Amusium pleuronectes Shell
Authors: Chantarasunthon K. , Teanchai Kanyakorn , Siriprom Wichian
Published: January 2016

In this study, the experimental investigation and assessment the absorption capacity for Zn ion with Amusium Pleuronectes shell. The investigations were carried out by batch method and variables of the batch experiment include solution pH, Contact time, were determind. The mechanism of bisorption is chemisorption or/and physical adsorption was confirmed by X-ray Diffraction (XRD) and Energy Dispersive X-ray Fluorescence (EDXRF). The results showed that the Amusium Pleuronectes shell has a high level of absorption capacity for Zn (II) ions. Another that result of mechanism of biosorption suggests and confirm with the result of XRD and EDXRF.
Synthesis of Silver Nanoparticles by Sparking Process
Authors: Jintakosol Thanut
Published: January 2016

Silver nanoparticles (Ag NPs) were synthesized by sparking process. The NPs were continuously deposited onto the substrate by varying the number of sparking cycles ranging from 100-200 and deposited on the glass substrate and annealing at 250-500 °C for 1 hr. The effect of Ag NPs on their structure and optical characteristics were investigated. The optical properties of the NPs have been studied from by Raman spectroscopy and UV-vis spectrophotometer. The morphology of Ag NP was characterized by Scanning Electron Microscope (SEM) and Atomic force microscope (AFM). The results have shown mainly spherical structure of Ag NPs in diameter ranging from 80-100 nm. This study demonstrated that the Ag NPs can be synthesized by sparking process and simply with low cost.
Theoretical Study of the Photon Interaction for Zirconium Alloy at 1 keV to 100 MeV
Authors: Khobkham Chumphon , Chaiphaksa W. , Limkitjaroenporn P. , Prongsamrong P. , Wiwatkanjana P. , Kaewkhao J.
Published: January 2016

In this work, the total mass attenuation coefficient and partial interactions of the zirconium alloy have been calculated by WinXCom program at 1 keV-100 MeV gamma ray energies. Zr2(Fe,Ni) alloys was studied for the mass attenuation coefficients, photoelectric absorption, incoherent, coherent and pair production processes. The effective atomic numbers and electron densities were also calculated. The calculated results show that the total mass attenuation coefficient decreased with increasing of gamma rays energy. The value of total mass attenuation coefficient of each material was different, which depend on chemical compositions of alloy. The partials interactions, effective atomic numbers and electron densities were also calculated and discussed.
Mechanical Properties Study of Plasma Treated Epoxy-Base Post in Dual-Material Systems
Authors: Sangprasert Waleepan , Sanghiran Lee Vannajan , Yavirach Piriya , Boonyawan Dheerawan , Nimmanpipug Piyarat
Published: January 2016

Improvement of adhesion between epoxy based post and composite resin core materials by low temperature plasma is an on-going dental material development. To systematically investigate the effects of surface change on the material’s chemical and mechanical properties, three series of two component materials, epoxy/urethane dimethacrylate (UDMA), epoxy/polyethylene (PE), and epoxy/poly(methylmethacrylate) (PMMA), were compared with dental epoxy based post/composite resin core. Each dual-materials system was modeled at an atomistic level. A molecular dynamics (MD) method with COMPASS force field was employed to simulate the most probable functionalization and the materials physical properties changes. Material surface modification was modeled and optimized using quantum calculations based on experimental characterization. To validate calculation results, the effect of plasma treatment on the mechanical properties of the dental post materials were examined by tensile pull out test.
Comparative Studies of Commercial Window with Standard Shielding Concretes on the Basis of Photon Interaction Parameters
Authors: Sangwaranatee N.W. , Sangwaranatee Narong , Kaewkhao Jakrapong , Chanthima Natthakridta
Published: January 2016

Commercial window added with BaSO4 have been studies on the mass attenuation coefficient and compared it with some standard shielding concretes. This parameter has been investigated at photon energy from 1 keV to 100 GeV on the basis of calculation. The theoretical values of photon interaction were obtained by the WinXCom program. The variations of mass attenuation coefficient of commercial window and standard shielding concretes are shown graphically with photon energy. It has been observed that the commercial window added with 30% BaSO4 has higher value of mass attenuation coefficient than all of standard shielding concretes at the photon energy range above 40-400 keV. Also, discontinuous jump of mass attenuation coefficient at the lower energy has been discusses.
Effect of Cobalt Dopant on Structural and Optical Properties of Co-Precipitated TiO2 Nanopowders
Authors: Junlabhut Prasopporn , Wattanawikkam Chakkaphan , Phoohinkong Weerachon , Mekprasart Wanichaya , Pecharapa Wisanu
Published: January 2016

The effects of cobalt (Co) addition on structural and optical properties of TiO2 nanopowders have been investigated. A co-precipitation method was employed to synthesize TiO2 nanoparticles with various Co additives from 0-10 mol% using tetrabutyl titanate and Cobalt (II) nitrate hexahydrate as starting precursors for Ti and Co source, respectively. The crystallinity of Co-doped TiO2 nanopowders is heightened by calcination process. The crystal structure, phase formation and the corresponding functional groups of Co-doped TiO2 were analyzed by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The scanning electron microscope (SEM) was taken to observe their morphologies. The chemical compositions of Co additive into TiO2 matrix are confirmed by EDAX. Their optical properties were investigated by diffuse reflectance spectroscopy. Diffuse reflectance spectra of samples exhibit the increasing absorption in visible region with an increasing Co content. The overall characterization results indicated that the crystallinity and optical properties of TiO2 nanoparticles are significantly affected by Co dopant.
Cd2+ and Cr3+ Cation Immobilization by Using Geopolymer Based on PT. IPMOMI Fly Ash
Authors: Fansuri Hamzah , Anisatun I’Is M. , Fatmawati Anif , Utomo Wahyu Prasetyo , Supriadi Warih , Bayuaji Ridho , Subaer
Published: January 2016

This study investigates the immobilization of Cd2+ and Cr3+ by using geopolymer paste based on PT. IPMOMI fly ash. The best composition of geopolimers paste was determined based on the highest magnitude of its 7 days compressive strength. Geopolymer pastes were prepared by varying SiO2/Al2O3 and Na2O/SiO2 molar ratio of the starting materials. X-Ray Diffraction (XRD) and Scanning Electron Microscope (SEM) were employed to examined these compositions. The molar ratio of SiO2/Al2O3 6.46 was found to produce the highest compressive strength of the resulting geopolymer paste, i.e 25 MPa and increased to 33.17 MPa by adjusting the ratio of Na2O/SiO2 to 0.65. Cd2+ and Cr3+ cations were added into geopolymers resin at the level of 1000 – 16000 ppm (mg/kg fly ash) and it was found to improve their compressive strength. The addition of 4000 ppm of Cd2+ increased the compressive strength to 38.6 MPa while the inclusion of 6800 ppm of Cr3+ reached 47.83 MPa. Further addition of cations reduced these values and the lowest compressive strength was observed on the addition of 16000 ppm of Cd2+ and Cr3+, i.e 8.65 MPa and 4.39 MPa, respectively. Leaching test was conducted by using Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES) and the distribution of heavy metal cations were examined by using SEM-EDX. The results showed that geopolymer pastes were able to immobilize Cr3+ at the studied level as there was no trace of Cr3+ detected after 6.5 hours of leaching. Geopolymer pastes were also found to completely immobilize Cd2+ at the level of 1000 ppm albeit the addition of 16000 ppm results in 6.26% leached out of this cation.
The Potential of Geopolymer as High Quality Refractory
Authors: Nurfadilla  , Dzulkifli Muhammad , Ramli Fardina , Subaer
Published: January 2016

The objective of this research is to investigate the potential of geopolymers produced from fly ash, metakaolin and clay as high quality refractory. Geopolymers were synthesized through alkaline activation method and cured at 70°C for 1 hour. The samples were subjected to various characterizations such as compressive and flexural strength, fire resistance and shock thermal measurements. Geopolymers made from fly ash showed higher compressive strength compared to those made from metakaolin and local clay. Fire resistance and thermal shock measurements indicated that the refractory quality of geopolymers made from fly ash, metakaolin, and local clay was very much the same.
Correlation between Mix Design Study and Flexural Strength of Kaolin Coated Lumber Wood via Geopolymer Technology
Authors: Ramasamy Shamala , Hussin Kamarudin , Abdullah Mohd Mustafa Al Bakri , Ghazali Che Mohd Ruzaidi , Sandhu Andrei Victor , Binhussain Mohammed
Published: January 2016

Kaolin, an abundantly available material that mainly contains alumina and silica is now being used in geopolymer system. Kaolin based geopolymer has been proven to acquire remarkable thermal resistance, chemical resistance, and mechanical properties. Geopolymer materials have become the new favorite, especially for the carbon conscious end users as a potential replacement for widely used Ordinary Portland Cement (OPC). This works shares the effect of various mix designs, especially in terms of altering the solid/liquid ratio, sodium silicate/sodium chloride ratio and sodium chloride molarity on the flexural properties of kaolin coated lumber woods via geopolymer technology.
Assessment to the Solid to Liquid Ratios on the Soil Strength and Water Absorption of the Kedah’s Soil
Authors: Hamzah Hazamaah Nur , Al Bakri Abdullah Mohd Mustafa , Heah Cheng Yong , Arif Zainol Mohd Remy Rozainy , Hussin Kamarudin
Published: January 2016

The purpose of this paper is to assess the solid to liquid ratios on the compressive strength and water absorption of Kedah’s soil by using geopolymerization method. Fly ash and soft soil were mixed with alkaline activators namely sodium hydroxide (NaOH) and sodium silicate (Na2SiO3) for preparing stabilize the soil sample. The geopolymerization process for soil stabilization was synthesized by the activation of fly ash and soil with alkaline solution at four different solid to liquid ratios which were 1.5, 2.0, 2.5, and 3.0 at a specific constant ratio of Na2SiO3/NaOH solution of 0.5. The compressive strength up to 4.77 MPa was obtained at 3.0 of solid to liquid ratio and the water absorption has become increasingly lower to 2.28% as the ratio of solid to liquid increases in 7 days curing at room temperature.
The Expanding Spectrum of Ligands for Leukocyte Ig-like Receptors
Authors: Burshtyn Deborah N. , Morcos Chris
Published: January 2016

The human leukocyte Ig-like receptor family is part of the paired receptor system. The receptors are widely expressed by various immune cells, and new functions continue to emerge. Understanding the range of functions of the receptors is of general interest because several types of pathogens exploit the receptors and genetic diversity of the receptors has been linked to various autoimmune diseases. Class I major histocompatibility molecules were the first ligands appreciated for these receptors, but the types of ligands identified over the last several years are quite diverse, including intact pathogens, immune-modulatory proteins, and molecules normally found within the CNS. This review focuses on the types of ligands described to date, how the individual receptors bind to several distinct types of ligands, and the known functional consequences of those interactions.
The MHC Class I Cancer-Associated Neoepitope Trh4 Linked with Impaired Peptide Processing Induces a Unique Noncanonical TCR Conformer
Authors: Hafstrand Ida , Doorduijn Elien M. , Duru Adil Doganay , Buratto Jeremie , Oliveira Claudia Cunha , Sandalova Tatyana , van Hall Thorbald , Achour Adnane
Published: January 2016

MHC class I downregulation represents a significant challenge for successful T cell–based immunotherapy. T cell epitopes associated with impaired peptide processing (TEIPP) constitute a novel category of immunogenic Ags that are selectively presented on transporter associated with Ag processing–deficient cells. The TEIPP neoepitopes are CD8 T cell targets, derived from nonmutated self-proteins that might be exploited to prevent immune escape. In this study, the crystal structure of H-2Db in complex with the first identified TEIPP Ag (MCLRMTAVM) derived from the Trh4 protein has been determined to 2.25 Å resolution. In contrast to prototypic H-2Db peptides, Trh4 takes a noncanonical peptide-binding pattern with extensive sulfur–π interactions that contribute to the overall complex stability. Importantly, the noncanonical methionine at peptide position 5 acts as a main anchor, altering only the conformation of the H-2Db residues Y156 and H155 and thereby forming a unique MHC/peptide conformer that is essential for recognition by TEIPP-specific T cells. Substitution of peptide residues p2C and p5M to the conservative α-aminobutyric acid and norleucine, respectively, significantly reduced complex stability, without altering peptide conformation or T cell recognition. In contrast, substitution of p5M to a conventional asparagine abolished recognition by the H-2Db/Trh4-specific T cell clone LnB5. We anticipate that the H-2Db/Trh4 complex represents the first example, to our knowledge, of a broader repertoire of alternative MHC class I binders.
Comments concerning the real risk of sexual adverse events secondary to the use of 5-ARIs
Authors: Pirozzi Farina Furio , Pischedda Antonella
Published: January 2016

Treatment-induced sexual dysfunctions (SD) are a recurrent and controversial topic in recent literature on the adverse events related to the use of 5-alpha-reductase inhibitors (5ARIs) (1, 2). In order to deal adequately with the various aspects of this topic, it is necessary to first cover some of the steps that allow a better definition and understanding of the subject.
Three-component hydraulic penile prosthesis malfunction due to penile fibrolipoma secondary to augmentative phalloplasty: A case report
Authors: Antonini Gabriele , Vicini Patrizio , De Berardinis Ettore , Pacchiarotti Arianna , Gentile Vincenzo , Perito Paul
Published: January 2016

Fibrolipomas are an infrequent type of lipomas. We describe a case of a man suffering from subcutaneous penile fibrolipoma, who twelve months earlier has been submitted to augmentative phalloplasty due to aesthetic dysmorphophobia. The same patient three years earlier has been submitted to three-component hydraulic penile prostheses implantation due to erectile dysfunction. After six months from removing of the mass, the penile elongation and penile enlargement were stable, the prostheses were correctly functioning and the patient was satisfied with his sexual intercourse and life. The diagnostics and surgical characteristics of this case are reported.
On the Evidence that Augmentation Therapy Helps Asthma: Are Storks Really Responsible for New Babies?
Authors: Stoller J.K.
Published: January 2016

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Temporal Changes in Lung Cancer: A 10-year Study in a Chest Hospital
Authors: Halilcolar H. , Yapicioglu S. , Bilaceroglu S.
Published: January 2016

Background and Aim. No prospective, wide-scale study on lung cancer (LC) exists in Turkey. We aimed to determine prospectively epidemiologic features, histologic types, stages and temporal changes in LC in the Aegean Region of Turkey. This is the first prospective and largest LC study in Turkey. Methods. A hospital-based study was conducted on LC cases diagnosed between 1994 and 2004 at a tertiary referral hospital for thoracic medicine and surgery in Izmir, Turkey. The study was divided into two 5-year periods to determine temporal changes. Results. Of 13,344 patients with pathologically confirmed LC, 93.1% was male. The mean age was 61.35±0.08 (59.5% between 41-65). The majority (82.5%) were smokers or ex-smokers. There was a 13.87% general rise in smoking rate, predominantly in females. LC incidence increased by 38% from 1994-1999 (42%) to 2000- 2004 (58%); the contributive increases were 35.5% in males, and 77.5% in females. Frequent types were squamous cell carcinoma (24.7%), small cell carcinoma (SCLC) (14.2%) and adenocarcinoma (13.2%). Adenocarcinoma in the younger group (<40), females or nonsmokers, and squamous cell carcinoma in the older group, males or smokers were the leading types. Nonsmall cell lung carcinoma (NSCLC) was mostly diagnosed at stages IIIB (36.7%) and IV (37%) whereas SCLC at limited stage (59.1%). Conclusion. The majority of the LC patients are over 40 years old, current or ex-smokers, or with squamous cell carcinoma. There is a general rise in smoking rate with a female predominance. The most common type is squamous cell carcinoma in males, and adenocarcinoma in females. NSCLC is diagnosed more frequently at advanced stage but SCLC at limited stage.
GOLD severity stratification and risk of hospitalisation for COPD exacerbations
Authors: Lusuardi M. , Lucioni C. , De Benedetto F. , Mazzi S. , Sanguinetti C.M. , Donner C.F.
Published: January 2016

Background and Aim. The Italian Costs for Exacerbations in COPD (“ICE”) study, following a pharmacoeconomic assessment of costs due to COPD exacerbations (primary endpoint), aimed also at evaluating (secondary endpoint) which clinical factors, among those considered for cost-analysis, may, at follow up, present a risk of new exacerbations and re-admission to hospital. Materials and methods. A prospective, multicentre study was carried out on COPD patients admitted to 25 Hospital Centres as a result of an exacerbation from October- December 2002. Following discharge, a 6-month follow- up was performed in each patient via three bi-monthly telephone interviews with a questionnaire administered by an investigator clinician. Results. 570 patients were eligible for data processing, mean age 70.6 years (± 9.5 standard deviation, SD), males 69.2%. According to GOLD, severity stratification was as follows: moderate 36.4%; severe 31.3%; very severe 32.3%. 282 patients experienced at least one exacerbation at follow up, 42% of exacerbations requiring hospitalisation. No significant association was seen between exacerbations and GOLD stage or co-morbidities or treatments except LTOT. Conversely, COPD functional severity influenced hospitalisations very significantly, with relative risks 2.6 (95% Confidence Interval, CI 1.8-3.8) and 2.0 (CI 1.3-2.8) (GOLD very severe versus moderate and severe, respectively), and 1.3 (CI 0.85-2.1) (GOLD severe versus moderate). Hospitalisations were also significantly associated with treatments denoting more severe conditions (oral corticosteroids, oral theophylline, and LTOT). Conclusions. Severity stratification of COPD patients according to respiratory function classes as outlined in GOLD guidelines and need for LTOT are confirmed as important predictors of hospitalisation for an exacerbation.
Cultural and linguistic testing of the Handling Questionnaire: a specific instrument for assessing the patient’s acceptability of dry powder inhalers
Authors: Dal Negro R.W. , Guerriero M.
Published: January 2016

The testing and checking phases of a questionnaire are briefly described in this paper, identifying the common errors due to incorrect formulation of questions and the main issues. The theoretical methods for “testing” a questionnaire has been examined in the first section, in the second section the testing process for a specific questionnaire for assessing the patient’s acceptability of a dry powder device (the Handling Questionnaire) has been described, together with the grading of improvement achieved.
Acute Fibrinous and Organising Pneumonia in Whipple’s disease
Authors: Canessa P.A. , Pratticò L. , Sivori M. , Magistrelli P. , Fedeli F. , Cavazza A. , Calcina G.
Published: January 2016

We report a case of acute fibrinous and organising pneumonia in Whipple’s disease with lung improvement after antibiotic therapy. In our knowledge this is the first report of Whipple’s disease with acute fibrinous and organising pneumonia.
Asymptomatic fatal post-lobectomy hemopericardium
Authors: Kotoulas C. , Meraj S. , Odom N.J.
Published: January 2016

We report a case of an asymptomatic post-lobectomy hemopericardium in a female who died suddenly at day two post surgery. Autopsy revealed no pathologic findings, but 250 ml of blood and clots in the pericardium and a non-significant injury to the epicardial fat overlying the circumflex artery territory.
Exercises using the upper limbs hyperinflate COPD patients more than exercises using the lower limbs at the same metabolic demand
Authors: Porto E.F. , Castro A.A.M. , Velloso M. , Nascimento O. , Dal Maso F. , Jardim J.R.
Published: January 2016

mandatory constituents of a rehabilitation programme for patients with COPD. However, it is not known how much these exercises may induce pulmonary dynamic hyperinflation (DH). Objective. To evaluate the DH in patients with COPD exercising the upper and lower parts of the body at the same metabolic demand. Methods. Sixteen patients aged 63 ± 13 years and with a FEV1 of 1.5 ± 0.7 L (41 ± 11% pred) were studied. Patients initially performed a maximal exercise test with the arms using the diagonal movement technique. The lower limbs were exercised on a treadmill at the same metabolic demand. Results. Inspiratory capacity decreased 222 ± 158 ml (9.8%) after the upper body exercise (p < 0.0001) and 148 ± 161 ml (7%) after exercise with the lower body (p = 0.0028) and a difference between the two groups was found (p < 0.05). There was no difference between resting IC before upper and lower limbs exercises (p = 0.8); increase in minute ventilation and in pulmonary ventilation in percentage of maximum voluntary ventilation and reduction of expiratory time were larger in the upper limbs exercise (p < 0.05). Dyspnea as measured by the Borg Scale was higher in the upper body (3.9 ± 2.2) than in the lower body (2.3 ± 1.3) at the end of the exercise (p = 0.033). Pulmonary ventilation and inspiratory capacity were correlated (p = 0.0001; r = 0.82). Conclusion. Exercise with the upper part of the body causes more DH and dyspnea than exercise with the lower part of the body at the same metabolic demand.
Tuberculous abscess on the chest wall
Authors: Ayık S. , Çakan A. , Aslankara N. , Özsöz A.
Published: January 2016

A 58-year old patient on dialysis for four years due to chronic renal failure presented with complaints of painless, continuously growing swelling on the left of his back and coughing, symptoms evolving over a period of approximately 3 months. Physical examination revealed a soft fixed mass of 10 x 10 x 4 cm on the left infrascapular area on the chest wall. The sample taken from the inflammation on the chest wall was analyzed with PCR method which resulted positive for Acid Fast Bacilli (AFB), tissue biopsy showed dermatitis with granulomata and sputum was positive for AFB. Thoracic MR, performed for the purpose of detecting the relationship between the lesion on the lung and the one on the chest wall, detected changes in the inflammatory soft tissues and multiple small abscess formations on the chest wall. There was no pathological signal in the bone structures of the chest wall. This case underlines the necessity to include “Empyema necessitatis’’ in the preliminary diagnosis when there is a soft tissue swelling on the chest wall without inflammatory signs in patients with reduced immune defences.
Risk of internet addiction among undergraduate medical, nursing, and lab technology students of a health institution from Delhi, India
Authors: Sulania Anika , Sachdeva Sandeep , Dwivedi Nidhi
Published: January 2016

ABSTRACT

Objective:

To assess prevalence, usage pattern, and risk of internet addiction (IA) among undergraduate students of a health institution from Delhi.

Materials and Methods:

A cross-sectional descriptive study was carried out during March-April 2015 using 20-item Young's IA test, a Likert scale-based interview schedule with scores ranging from 0 to 100 points with a higher score indicating greater internet dependency. Background variables included sociodemographic details, general health practices, self-assessment of mental health status, inter-personal relation (family/friends), personality type, and global satisfaction in life. The scoring pattern was analyzed in the form of low risk (score ≤49 points) and high risk (score ≥50 points) for IA. The proportion, Chi-square test, adjusted, and un-adjusted odds ratio (OR) (95% confidence interval) were computed using regression analysis.

Results:

Out of 202, 40.6% were MBBS students, followed by 35.6% from nursing, and 23.8% from medical lab technology stream; 68.3% were females; the mean age was 20.3 ± 1.4 years; and 61.9% were residing in hostels. It was observed that 44 (21.8%) and 22 (10.9%) students had ever consumed alcohol and smoked, respectively, while only 42 (20.8%) were engaged in physical activity (≥30 min) during most (≥5) of the days of the week. Based on self-assessment, 33 (16.3%) were globally dissatisfied and 88 (43.6%) reported themselves to be introverts. The majority of students were using internet for educational purpose (98%), entertainment (95.0%), accessing social sites (92.5%), checking E-mails (76.2%), and pornographic websites (45%). With regard to IA, 171 (84.7%) were at low risk (score ≤49) and 31 (15.4%) were at high risk (score ≥50). Male students (P = 0.001), ever consumed alcohol (P = 0.003), ever smoker (P = 0.02), and regular physical activity (P = 0.04) were found to be significantly associated with a high risk of IA based on Chi-square test, but none were found significant at higher levels of analyses (adjusted OR). No significant association of IA was found with mental status, global satisfaction, inter-personal relationship, or personality type.

Conclusion:

A large majority (84.7%) of students in our study are found to be at low risk of internet addiction.
Design de Interação, Design Experiencial e Design Thinking: a triângulação da Interação Humano-Computador
Authors: Ellwanger Cristiane , Rocha Rudimar Antunes da , Silva Régio Pierre da
Published: January 2016

O artigo trata da Interação Humano-Computador (IHC) e suas interfaces da participação do usuário como pressuposto à usabilidade de sistemas computacionais interativos e dinâmicos. As conceituações da IHC advêm do avanço exponencial das tecnologias da informação e comunicação (TICs) e de marketing, através de como as pessoas se comportarem frente ao Design de Interação (DI), Design Experiencial (DE) e Design Thinking (DT). Esta tríade tem elo com o marketing de relacionamento organizacional. Para ampliar as discussões, elaborou-se o presente trabalho, classificado como do tipo exploratório, analítico e descritivo exposto na literatura especializada sobre as variáveis supramencionadas (HAIR, et al., 2005). Da compreensão da IHC-TICs e da triangulação do DI, DE e DT, reflete-se sobre o ensino e a aprendizagem do desenvolvimento de sistemas computacionais interativos. A pesquisa foi elaborada durante o segundo e terceiro trimestre de 2014. Concluiu-se que o DE é utilizado em vários contextos da IHC e TICs, englobando, ou DI ou DT da IHC, como objetos e sujeito ao facilitar a experiência de sujeitos (designers e usuários) e objeto (produtos ou serviços) em que atuam.
O ICMS Ecológico como instrumento de política ambiental: evidências a partir do estado de Mato Grosso
Authors: MATTEI Lauro Francisco , Meirelles Neto José
Published: January 2016

Este artigo analisa a política ambiental denominada de ICMS Ecológico, tomando como referência o estado de Mato Grosso no período de 2002 a 2010. O objetivo central é analisar o impacto redistributivo dessa política naquela unidade da federação. Para tanto, considerou-se as receitas de alguns municípios no período anterior e posterior à implantação do programa ICMS Ecológico. Os resultados mostraram que essa política foi responsável por um aumento significativo de repasse de recursos financeiros para os munícipios envolvidos com o programa. Todavia, como essa política ainda se encontra em fase inicial de implantação, concluiu-se que são necessários vários aprimoramentos para torná-la um instrumento efetivo de defesa do meio ambiente e de promoção do desenvolvimento sustentável.
Metodologia de aprendizagem por riscos: uma simulação para projetos de inovação
Authors: Pech Gerson , Santo Lorena Costa do Espírito
Published: January 2016

Neste trabalho analisamos a necessidade de gerenciar riscos em projetos de inovação utilizando os dados da Pesquisa Industrial de Inovação Tecnológica – PINTEC. O objetivo deste trabalho é propor uma metodologia de gestão de riscos adequada a projetos de inovação cujo pilar é o estudo dos riscos a partir das suas causas relevantes. Nossa proposição tem a finalidade de gerar uma ferramenta de análise e controle dos riscos para ser utilizada ao longo das diversas fases da inovação. Realizamos uma simulação da aplicação dessa metodologia no projeto NUGI (Núcleo de Gestão da Inovação) do Instituto Euvaldo Lodi de Pernambuco (IEL PE) – instituição voltada para o apoio de projetos de inovação, entre outras atividades.  Dessa forma, foi possível comprovar que o método desenvolvido é capaz de instrumentalizar o processo de aprendizagem dos riscos e aumentar as chances de concretização das oportunidades.
Gestão Social nos Territórios da Cidadania: um estudo de caso no território do Meio Oeste do Contestado
Authors: Pacheco Anderson Sasaki Vasques , Moretto Neto Luis , Silva Karin Vieira da
Published: January 2016

Esta pesquisa tem o objetivo de analisar se o programa Territórios da Cidadania, especificamente da região Meio Oeste do Contestado, apresenta interface com os pressupostos teóricos da gestão social. Como fundamentação, foram utilizados estudos sobre gestão social, especialmente de Fernando Tenório. Quanto à metodologia, esse trabalho se enquadra como aplicado e estudo de caso. Para coleta dos dados, predominantemente qualitativos, foram realizadas entrevistas com atores relacionados ao programa. A análise dos dados baseou-se na metodologia para avaliar processos decisórios deliberativos em políticas públicas de Tenório et al. (2008c), assim como na utilização do método de análise de conteúdo. Os resultados ressaltam, em linhas gerais, que, ainda que haja um esforço institucional por parte do governo federal para a efetivação do programa, há, no território, a predominância de grupos de interesses específicos, que articulam suas ações de modo a garantir a manutenção de seus interesses e sobrepõem os anseios individuais aos desejos da coletividade.
Redes Públicas de Cooperação e o Desenvolvimento Local: a experiência do Programa Nacional de Habitação Rural (PNHR) no Alto Vale do Itajaí
Authors: Silva Silmara Sarai da , Coto Gabriela Cordioli
Published: January 2016

Este artigo, tendo como ponto de partida a Pró Mover, associação criada por agricultores do Alto Vale do Itajaí, que desenvolve ações dentro da rede de desenvolvimento do Programa Nacional de Habitação Rural (PNHR), pretende analisar a real contribuição dessa rede pública de cooperação para o desenvolvimento local no Alto Vale do Itajaí. Por meio da realização de entrevistas semiestruturadas, pesquisa documental e observação participante, coletaram-se os dados que foram analisados à luz de categorias relacionadas ao conceito de desenvolvimento local e que foram apresentadas no referencial teórico. Os resultados apontaram para aspectos que tiveram uma contribuição a partir da implementação do PNHR na região, principalmente no que diz respeito à qualidade de vida do público beneficiário. Ainda assim, se faz necessário potencializar e rever algumas ações para que os objetivos dessa política e da rede em questão sejam atingidos plenamente.
Learning by Doing: a critical analysis about partnership between University, Local Government and Civil Society
Authors: Vasconcellos Sobrinho Mário , Vasconcellos Ana Maria de Albuquerque , Heidtmann Neto Henrique Guilherme , Sousa Yana Moura de
Published: January 2016

The aim of this paper is to show how partnership between University, Local Government and Civil Society may contribute for territory development. The paper central issue is to critically debate to what extent partnership between University, Local Government and Civil Society is an effective strategy for development in areas that are changing from rural to urban structure. It shows a learning experience that has been carried out in the município of Benevides in Pará state, Amazonia region, Brazil. This experience aims to link university research, local government demands and civil society needs in a large development project that involves (a) local government, local organisations and communities capacity building, (b) município participatory planning and (c) university services delivering as a form to effectively contribute to the area where the university is involved with.
Gestão Social e Desenvolvimento Territorial: um olhar a partir processo de governança dos Colegiados Territoriais Brasileiros
Authors: Dias Thiago Ferreira , Paiva Juarez Azevedo de
Published: January 2016

Este artigo traz um diálogo teórico-empírico acerca da prática da gestão social nas ações de desenvolvimento territorial impulsionado pelo Governo Federal do Brasil no âmbito do Programa Território da Cidadania. No trabalho, ainda busca-se compreender como vem ocorrendo a gestão da governança territorial, com foco na participação da sociedade civil e dos representantes do poder público e nas discussões ocorridas nos Colegiados Territoriais. Para efeitos desta pesquisa foi utilizada uma abordagem quantitativa e qualitativa a partir dos microdados acerca da pesquisa sobre a Gestão dos Colegiados Territoriais, desenvolvida com financiamento do CNPq e MDA e executada por instituições de ensino superior brasileira, com recorte para 19 colegiados inseridos em sete Estados do Nordeste brasileiro. Ao analisar a gestão dos Colegiados dos Territórios da Cidadania do Nordeste brasileiro, com foco no processo de exercício da gestão social via participação na governança territorial, percebeu-se que o território tem acessado políticas de desenvolvimento endógeno, sobretudo, nos âmbitos de apoio aos projetos de apoio socioeconômico.
Teaching with Technology: North Carolina Agriculture Teachers’ Knowledge Acquisition, Attitudes, and Identified Barriers
Authors: Williams Maegen R. , Warner Wendy J. , Flowers James L. , Croom D. Barry
Published: January 2016

In order for agricultural education teachers to adapt to an ever-changing educational environment, they must possess the skills necessary to integrate technology into their classrooms. The purpose of this study was to examine the factors that influence North Carolina agriculture teachers’ ability to integrate educational technology. This study examined the identification of sources contributing to agriculture teachers’ technological knowledge, their attitudes towards technology integration, and barriers to the inclusion of technology in agriculture classrooms. Agriculture teachers acquired technology skills to a moderate extent from personal trial and error and interaction with other faculty/staff. Teachers felt technology allowed students to be creative, allowed students to access course materials easily, appealed to the learning styles of students, and provided opportunities for individualized instruction. The expense of technology was identified as the greatest barrier to technology integration.
Encouraging Teacher Change within the Realities of School-based Agricultural Education: Lessons from Teachers’ Initial Use of Socioscientific Issues-based Instruction
Authors: Wilcox Amie K. , Shoulders Catherine W. , Myers Brian E.
Published: January 2016

Calls for increased interdisciplinary education have led to the development of numerous teaching methods designed to help teachers provide meaningful experiences for their students. However, methods of guiding teachers in the successful adoption of innovative teaching methods are not firmly set. This qualitative study sought to better understand how school-based agricultural education teachers decide to adopt or discontinue a teaching innovation when introduced through ready-made lesson plans, which is currently a common practice of teaching method integration in SBAE. Constant comparative analysis unveiled themes within the reactions to the teaching method’s use, as well as how teacher actions to those reactions led to their ultimate adoption or discontinuance of the teaching method.
Examining Student Perceptions of Flipping an Agricultural Teaching Methods Course
Authors: Conner Nathan W.. , Rubenstein Eric D. , DiBenedetto Cathy A. , Stripling Christopher T. , Roberts T. Grady , Stedman Nicole L. P.
Published: January 2016

To meet the needs of the 21st century student, college instructors have been challenged to transform their classrooms from passive to active, “minds-on” learning environments. This qualitative study examined an active learning approach known as a flipped classroom and sought to explore student perceptions of flipping a teaching methods course required in an agricultural teacher education program. Students offered mixed perceptions about this flipped class. The emergent themes included: (a) positive aspects of online lecture, (b) technological issues, (c) positive aspects of classroom learning activities, (d) negative aspects of classroom learning activities, and (e) student beliefs regarding the flipped classroom approach. Based on the findings from this study, a flipped classroom approach seems to have promise as a model for delivering a teaching methods class. As a result, we suggest other instructors of similar courses attempt a flipped classroom approach to test the model in other contexts.
Effects of Agricultural Sales CDE Modules on Content Knowledge and Argumentation Skill
Authors: Sapp Sarah B. , Thoron Andrew C.
Published: January 2016

The purpose of this study was to determine the effects of the type of training module on argumentation skill, student content knowledge achievement, and performance in an agricultural sales practicum completed by secondary school agriculture students. Current research has concluded that most students do not possess the academic or transferable skills to be successful in the workplace. This quasi-experimental study sought to evaluate students’ development of academic and transferable skills through the use of researcher-developed agricultural sales training modules. Two sets of training modules were used, one with and one without argumentation infused into the lessons. Results indicated that both groups of students had increases in content knowledge and argumentation skill; further, there was no statistically significant difference between groups.
Exploring the Disconnect Between Mathematics Ability and Mathematics Efficacy Among Preservice Agricultural Education Teachers
Authors: Hilby Alyssa C. , Stripling Christopher T. , Stephens Carrie A.
Published: January 2016

STEM disciplines will continue to impact school-based agricultural education programs; thus, in order to produce secondary students proficient in science and mathematics, developing preservice agricultural education teachers who are competent in mathematics and teaching mathematics is essential. This study utilized data collected through a focus group of 10 preservice agricultural education teachers at the University of Tennessee in order to explore the disconnect between mathematics ability and mathematics efficacy of preservice agricultural education teachers. Five themes emerged, which help explain the disconnect between mathematics ability and mathematics efficacy: (a) review of mathematics, (b) misconceptions, (c) prior success, (d) use of guest lecturers/students, and (e) the importance of pedagogical knowledge. Based on the results of this study, we recommend the agricultural teacher education program at the University of Tennessee provide instruction on cross-referenced mathematics standards, methods of teaching contextualized mathematics, and the types of knowledge required for teaching contextualized mathematics. These efforts should better prepare preservice teachers for teaching contextualized mathematics and aid them in developing an accurate understanding of the mathematics found in the school-based curricula. Additionally, future research is warranted to determine the most effective means of providing instruction in the aforementioned areas.
Dés, Mihály. 2013. Pesti barokk ['Budapest-Style Baroque']. Budapest: Magvető. 552 pp.
Authors: Fenyő Mario
Published: January 2016

Dés, Mihály. 2013. Pesti barokk ['Budapest-Style Baroque']. Budapest: Magvető. 552 pp. Reviewed by Mario D. Fenyo, Bowie State University