bluuebunny/crossref_metadata_2025_split huggingface dataset:
Spatial and Temporal Fluctuations of Pore‐Gas Composition in Sulfidic Mine Waste Rock
Authors: Lorca Maria E. , Mayer K. Ulrich , Pedretti Daniele , Smith Leslie , Beckie Roger D. 
Published: September 2016

Core Ideas
Grain‐size segregation during end dumping affects the pore‐gas distribution.
Seasonal variations in precipitation affect O2 ingress and CO2 egress.
Hot spots of sulfide oxidation are controlled by physical and chemical heterogeneity.
Grain‐size segregation is reflected in the spatial distribution of oxidation rates.
The oxidation of sulfide minerals and pH‐neutralization reactions in unsaturated mine waste rock produce changes in the pore‐gas composition, leading to substantial deviations from atmospheric conditions. We studied the temporal and spatial changes in pore‐gas composition, temperature, and volumetric water content (VWC) in an experimental pile during a 2‐yr period. The pile was constructed by end dumping and is exposed to a marked two‐season (wet–dry) climate. The grain‐size segregation of waste rock occurring during end‐dump construction significantly affected the spatial distribution of pore‐gas composition within the pile. Results from continuous monitoring also demonstrated the role of VWC fluctuations on pore‐gas composition at the study site. Oxygen decreased during the wet season, while CO2 concentrations showed the opposite behavior. Gaseous diffusion was inferred as an important O2 supply mechanism for this experimental waste‐rock pile. In addition, wind‐induced gas advection and convection probably contributed to O2 ingress into the basal regions of the pile. Intrinsic oxidation rates were estimated based on one‐dimensional reaction–diffusion modeling, showing pronounced variations between the top and bottom of the pile. These differences can be attributed to low reactivity in the basal region of the pile related to the coarse‐grained nature of the material and the omission of O2–supply mechanisms other than diffusion. The results demonstrate the complex interactions between physical and chemical heterogeneities in mine waste rock and contribute to an improved understanding of oxidation reactions and metal release that occur in sulfidic waste rock.
INFLUÊNCIAS NA VALORAÇÃO DO FALIDO NO HISTÓRICO DA PROTEÇÃO JURÍDICA DA RECUPERAÇÃO DE EMPRESAS
Authors: Dias Norton Maldonado 
Published: September 2016

<p>O trabalho procurou tratar da valoração histórica e cultural acerca do falido como um precedente necessário para a admissão de prerrogativas que considerassem direitos de recuperação ao empresário em crise. As oscilações históricas do instituto da recuperação no ordenamento jurídico brasileiro, enfatizando a abolição e restauração dos modelos extrajudiciais no reestabelecimento do empresário, atentando as problemáticas da concordata, correspondem, justamente, uma análise valorativa de evolução axiológica da figura do falido que releva a noção atual da atividade empresária contextualizada em meio a estabilização da função social e outros valores, dentre os quais, a preservação da empresa.</p> <p> </p>
Posición comercial regional de los maíces mejorados generados por el INIFAP en Veracruz
Authors: Del Angel-Pérez Ana Lid , Larqué Saavedra Bertha Sofía , Velázquez Jeremías Natarén , Martínez Hernándes María De Jesús , Rodríguez Montalvo Flavio Antonio , Vázquez Hernández Marcos Ventura 
Published: September 2016

Introducción. El maíz es un cereal básico en la alimentación mexicana y el más cultivado por los agricultores. Sin embargo, la demanda de maíz para consumo y de semilla mejorada (SM), ha ocasionado fuertes importaciones, pues en 2012, se importaron 9´515,000 t. Gran parte de la demanda de SM es cubierta por empresas transnacionales, y en menor medida por pequeñas empresas privadas y organismos gubernamentales como el Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP). El objetivo del trabajo fue conocer el mercado regional de SM en el estado de Veracruz, la posición comercial del INIFAP y las variables relevantes que motiva la decisión de compra.Método. En 2015 se aplicó un cuestionario a 100 productores de maíz para grano, en ocho municipios del estado de Veracruz, mediante el muestreo Respondent-Driven Sampling (RDS). El instrumento consideró preguntas abiertas y cerradas de opción múltiple, para obtener información socioeconómica y perceptual sobre el conocimiento y uso de semillas mejoradas (SM) de origen INIFAP o las que acostumbran sembrar. Resultados y discusión. El 75% del mercado regional de SM, las cubre el INIFAP. El mercado lo constituyen productores en pequeña escala (3.4 ha en promedio). La motivación de siembra depende de la Recomendación de amigos o familiares (p<0.0001). El uso de SM de origen INIFAP, está asociado a las variables socioeconómicas: Cercanía del lugar de compra (0.9451**) y Conoce las semillas INIFAP (0.9199**), así como con el hecho de que los productores Siembran SM (0.4320**) y Prefiere sembrar SM (0.3844**) cuyos coeficientes de correlación son bajos pero fortalecidos por la significancia. Las variables de opinión que favorecen el uso de SM fueron: Tiene ventajas sobre los maíces criollos (0.6162**) y Planta con buena arquitectura (0.3938**). Las características perceptuales importantes para el productor al consumir el grano fueron Sabor, Nixtamalización, Aroma, Color, Consistencia, Dureza, Tiempo de cocción y Vida de Almacén, observando diferencia significativa (p<0.0001), pero destacando las tres primeras. De ellas, las SM del INIFAP cumplen con dos expectativas: buen Sabor (0.2727**) y Nixtamalización (0.2596**), y aunque muestran r débiles son reforzadas por la significancia.Conclusión: El mercado regional de SM INIFAP está concentrado en productores de baja escala, que no tienen una idea clara de las ventajas de esta semilla, comparada con la de grandes empresas privadas, y solo pueden compararlas con variedades criollas. Las SM INIFAP solo proporcionan dos de ocho cualidades deseadas. Los mecanismos de difusión no ayudan a motivar u obtener la fidelidad del cliente. Ha sido la Recomendación de amigos o familiares y la Cercanía del Campo Experimental donde se produce y vende la semilla lo que ha determinado el uso.
Web-Based Intervention to Reduce Substance Abuse and Depressive Symptoms in Mexico: Development and Usability Test
Authors: Tiburcio Marcela , Lara Ma Asunción , Aguilar Abrego Araceli , Fernández Morise , Martínez Vélez Nora , Sánchez Alejandro 
Published: September 2016

Background
The development of Web-based interventions for substance abuse in Latin America is a new field of interest with great potential for expansion to other Spanish-speaking countries.

Objective
This paper describes a project aimed to develop and evaluate the usability of the Web-based Help Program for Drug Abuse and Depression (Programa de Ayuda para Abuso de Drogas y Depresión, PAADD, in Spanish) and also to construct a systematic frame of reference for the development of future Web-based programs.

Methods
The PAADD aims to reduce substance use and depressive symptoms with cognitive behavioral techniques translated into Web applications, aided by the participation of a counselor to provide support and guidance. This Web-based intervention includes 4 steps: (1) My Starting Point, (2) Where Do I Want to Be? (3) Strategies for Change, and (4) Maintaining Change. The development of the program was an interactive multistage process. The first stage defined the core structure and contents, which were validated in stage 2 by a group of 8 experts in addiction treatment. Programming of the applications took place in stage 3, taking into account 3 types of end users: administrators, counselors, and substance users. Stage 4 consisted of functionality testing. In stage 5, a total of 9 health professionals and 20 drug users currently in treatment voluntarily interacted with the program in a usability test, providing feedback about adjustments needed to improve users’ experience.

Results
The main finding of stage 2 was the consensus of the health professionals about the cognitive behavioral strategies and techniques included in PAADD being appropriate for changing substance use behaviors. In stage 5, the health professionals found the functionalities easy to learn; their suggestions were related to the page layout, inclusion of confirmation messages at the end of activities, avoiding “read more” links, and providing feedback about every activity. On the other hand, the users said the information presented within the modules was easy to follow and suggested more dynamic features with concrete instructions and feedback.

Conclusions
The resulting Web-based program may have advantages over traditional face-to-face therapies owing to its low cost, wide accessibility, anonymity, and independence of time and distance factors. The detailed description of the process of designing a Web-based program is an important contribution to others interested in this field. The potential benefits must be verified in specific studies.

Trial Registration
International Standard Randomized Controlled Trial Number (ISRCTN): 25429892; http://www.controlled-trials.com/ISRCTN25429892 (Archived by WebCite at http://www.webcitation.org/6ko1Fsvym)
Comparison of the effects of mini-implant and traditional anchorage on patients with maxillary dentoalveolar protrusion
Authors: Xu Yanhua , Xie Jiye 
Published: September 2016

ABSTRACT
Objective: To compare the treatment effects of mini-implants as anchor units with conventional methods of anchorage reinforcement in maxillary dentoalveolar protrusion patients in terms of skeletal, dental, and soft tissue changes.
Materials and Methods: We searched the databases of the Cochrane Library, PubMed, OVIDSP, CBM, VIP, WanFang Data, and CNKI covering December 1966 to March 2016 for randomized controlled trials (RCTs) and clinical controlled trials that compared the treatment effects of mini-implants with conventional anchorage reinforcement in maxillary dentoalveolar protrusion patients. Literature filtering, data extraction, and methodological quality evaluation were finished independently by two researchers and disagreements were solved by discussion. Meta-analysis was performed when possible; otherwise descriptive assessment was done.
Results: Through a predefined search strategy, we finally included 14 eligible studies. Eight outcomes were evaluated in this study: maxillary incisor retraction, maxillary molar movement, U1-SN, SNA, SN-MP, UL-E Plane, NLA and G-Sn-Pg.
Conclusions: Mini-implant anchorage was more effective in retracting the anterior teeth, produced less anchorage loss, and had a greater effect on SN-MP for the high-angle patients than did traditional anchorage. Both mini-implants and traditional anchorage underwent decreases in on U1-SN and SNA. More qualified RCTs are required to make reliable recommendations about the anchorage capacity of mini-implant and traditional anchorage in patients with maxillary dentoalveolar protrusion, especially on the UL-E plane, NLA, and G-Sn-Pg.
Improved corrosion inhibition of 3-amino-1,2,4-triazole on mild steel electrode in HCl solution using surface nanocrystallization
Authors: Pour-Ali Sadegh , Kiani-Rashid Alireza , Babakhani Abolfazl 
Published: September 2016

AbstractA nanocrystalline surface layer with average grain size of 77 nm was produced on mild steel through a wire brushing process. Its corrosion behavior was studied in the absence and presence of 3-amino-1,2,4-triazole (3-AT) as corrosion inhibitor. Although the increase in the inhibitor concentration shows a positive effect on inhibition efficiency of micro- and nano-grained surfaces, this effect is more remarkable for the sample with a nanocrystalline surface layer. In addition, in the presence of the optimum concentration of 3-AT, temperature increment has a more negative effect on the sample with a microcrystalline surface layer. The results also revealed that due to enhanced adsorption of 3-AT inhibitor and formation of a protective layer with a high polarization resistance, the inhibition effect of 3-AT increased as the grain size decreased from microcrystalline to nanocrystalline.
Detection of obstructive uropathy and assessment of differential renal function using two functional magnetic resonance urography tools
Authors: Steffen Ingo G. , Neumann Grit , Apostolova Ivayla , Ruf Juri , Rißmann Anke , Wiemann Dagobert , Liehr Uwe-Bernd , Schostak Martin , Amthauer Holger , Furth Christian , Genseke Philipp , Rogasch Julian M. M. 
Published: September 2016

Summary
Aim: After detection of obstructive uropathy (OU), the indication for or against surgery is primarily based on the differential renal function (DRF). This is to compare functional magnetic resonance urography (fMRU) with dynamic renal scintigraphy (DRS) to assess OU and DRF in infants and children. Patients, methods: Retrospective analysis in 30 patients (female: 16; male: 14; median age: 5.5 years [0.2-16.5]), divided into subgroup A (age: 0-2 years; n = 16) and B (> 2-17 years; n = 14). fMRU was assessed by measuring renal transit time (RTT) and volumetric DRF with CHOP fMRU tool (CT) and ImageJ MRU plug-in (IJ). OU detection by fMRU was compared with DRS (standard of reference) using areas under the curves (AUC) in ROC analyses. Concordant DRF was assumed if absolute deviation between fMRU and DRS was < 5 %. Results: DRS confirmed fixed OU in 4/31 kidneys (12.9 %) in subgroup A. AUC of CT was 0.94 compared with 0.93 by IJ. Subgroup B showed fixed OU in 1/21 kidneys (4.8 %) with AUCs of 0.98 each. RTT measured neither by CT nor by IJ in confirmed fixed OU was < 1200 s – resulting in negative predictive values of 1.0 each. In subgroup A, DRF was concordant in 81.3 % of the kidneys for CT and DRS compared with 75.0 % for IJ and DRS. In subgroup B, CT and DRS were concordant in 91.7 %, and IJ and DRS in 45.8 % of the kidneys. Conclusion: fMRU accurately excluded fixed OU in infants and children, independent from the software used for quantification. However, assessment of DRF with fMRU deviated from DRS especially in infants who may profit most from early intervention. Thus, fMRU cannot fully replace DRS as primary functional examination. If, for clinical reasons, fMRU is performed in first place and it cannot exclude fixed OU, it should be followed by DRS for validation and DRF quantification.
Influence of Different Peritoneal Dialysis Fluids on the In Vitro Activity of Cefepime, Ciprofloxacin, Ertapenem, Meropenem and Tobramycin against Escherichia Coli
Authors: Kussmann Manuel , Schuster Linda , Wrenger Sarah , Pichler Petra , Reznicek Gottfried , Burgmann Heinz , Poeppl Wolfgang , Zeitlinger Markus , Wiesholzer Martin 
Published: September 2016

Background Peritonitis is a major problem among patients on peritoneal dialysis (PD). The influence of diverse PD fluids on the activity of frequently used antibiotics has been insufficiently investigated. Thus, the present study set out to investigate the impact of different PD fluids on the activity of cefepime, ciprofloxacin, ertapenem, meropenem, and tobramycin against Escherichia coli. Methods Time-kill curves in 4 different PD fluids (Dianeal PDG4, Extraneal, Nutrineal PD4 and Physioneal 40, all Baxter Healthcare Corp., Deerfield, IL, USA) were performed over 24 hours with 4 different concentrations (1 x minimum inhibitory concentration [MIC], 4 x MIC, 8 x MIC, 30 x MIC) of each antibiotic evaluated and without antibiotics as control. Cation-adjusted Mueller Hinton broth (CA-MHB) was used as comparator solution. Results In all PD fluids investigated, bacterial growth and antimicrobial activity of all antibiotics tested was significantly reduced compared with the CA-MHB comparator solution. Except at high concentrations of 30 x MIC, cefepime, ertapenem and meropenem demonstrated a strongly reduced activity in all PD fluids investigated. Ciprofloxacin and tobramycin were highly active and bactericidal in all PD fluids and demonstrated dose-dependent activity. Conclusion The antimicrobial activity of cefepime, ertapenem and meropenem is limited or even nullified in certain PD fluids in vitro, whereas ciprofloxacin and tobramycin show excellent activity. The choice of PD fluids can impact the activity of antimicrobial agents and might influence microbiological outcome. Further studies are required to verify the clinical relevance of our findings.
Patients’ Perspectives on the Prevention and Treatment of Peritonitis in Peritoneal Dialysis: A Semi-Structured Interview Study
Authors: Campbell Denise J. , Craig Jonathan C. , Mudge David W. , Brown Fiona G. , Wong Germaine , Tong Allison 
Published: September 2016

Background Peritoneal dialysis (PD) is recommended for adults with residual kidney function and without significant comorbidities. However, peritonitis is a serious and common complication that is associated with hospitalization, pain, catheter loss, and death. This study aims to describe the beliefs, needs, and experiences of PD patients about peritonitis, to inform the training, support, and care of these patients. Methods Qualitative semi-structured interviews were conducted with 29 patients from 3 renal units in Australia who had previous or current experience of PD. The interviews were conducted between November 2014 and November 2015. Transcripts were analyzed thematically. Results We identified 4 themes: constant vigilance for prevention (conscious of vulnerability, sharing responsibility with family, demanding attention to detail, ambiguity of detecting infection, ineradicable inhabitation, jeopardizing PD success); invading harm (life-threatening, wreaking internal damage, debilitating pain, losing control and dignity); incapacitating lifestyle interference (financial strain, isolation and separation, exacerbating burden on family); and exasperation with hospitalization (dread of hospital admission, exposure to infection, gruelling follow-up schedule, exposure to harm). Conclusions Patients perceived that peritonitis could threaten their health, treatment modality, and lifestyle, which motivated vigilance and attention to hygiene. They felt a loss of control due to debilitating symptoms including pain and having to be hospitalized, and they were uncertain about how to monitor for signs of peritonitis. Providing patients with education about the causes and signs of peritonitis and addressing their concerns about lifestyle impact, financial impact, hospitalization, and peritonitis-related anxieties may improve treatment satisfaction and outcomes for patients requiring PD.
A GAP WITH A DEFICIT OF LARGE GRAINS IN THE PROTOPLANETARY DISK AROUND TW Hya
Authors: Tsukagoshi Takashi , Nomura Hideko , Muto Takayuki , Kawabe Ryohei , Ishimoto Daiki , Kanagawa Kazuhiro D. , Okuzumi Satoshi , Ida Shigeru , Walsh Catherine , Millar T. J. 
Published: September 2016

ABSTRACT
We report ∼3 au resolution imaging observations of the protoplanetary disk around TW Hya at 145 and 233 GHz with the Atacama Large Millimeter/submillimeter Array. Our observations revealed two deep gaps (∼25%–50%) at 22 and 37 au and shallower gaps (a few percent) at 6, 28, and 44 au, as recently reported by Andrews et al. The central hole with a radius of ∼3 au was also marginally resolved. The most remarkable finding is that the spectral index

between bands 4 and 6 peaks at the 22 au gap. The derived power-law index of the dust opacity

is ∼1.7 at the 22 au gap and decreases toward the disk center to ∼0. The most prominent gap at 22 au could be caused by the gravitational interaction between the disk and an unseen planet with a mass of ≲1.5 M
Neptune, although other origins may be possible. The planet-induced gap is supported by the fact that

is enhanced at the 22 au gap, indicating a deficit of ∼millimeter-sized grains within the gap due to dust filtration by a planet.
ALK positive Anaplastic Large Cell Lymphoma of the Thoracic Spine
Authors: Abrego Gabriela , Garcí­a Julio , Gilbert Bruce , Forseen Scott , Toscano Michael 
Published: September 2016

Primary bone lymphoma (PBL) is an uncommon extra nodal disease that represents about 1-3% of lymphoma cases. Imaging findings are variable and non-specific. Computed tomography may demonstrate lytic lesions with sequestra and periosteal reaction. On magnetic resonance imaging, lesions are T1WI hypointense and T2WI hyperintense, related to peritumoral edema or bone marrow replacement. Rarely lesions may have associated fibrosis and show a more hypointense signal pattern on T2WI. After administration of contrast, PBL tends to enhance avidly. We present a case of a 24 years old African American female patient with history of back pain. Initial imaging examinations showed lesions involving the T12 and T11 vertebral bodies with initial negative biopsy results. One month later, the patient returned with worsening back pain, and the follow up studies depicted collapse of the T12 vertebral body. A diagnosis of anaplastic large cell lymphoma in T12 was made. A brief review of the literature, imaging and pathological findings, and treatment options are also discussed.
Tuberous breast deformity: A modified technique for single-stage correction
Authors: Aggarwal Shweta , Niranjan Niri S. 
Published: September 2016

ABSTRACT
Introduction: Tuberous breast deformity is one of the most challenging congenital breast anomalies. Severe forms present as hypoplasia of lower medial and lateral quadrants and breast base constriction. We present a modified technique based on redistribution of breast tissue for single-stage aesthetic correction of this deformity. Material, Methods and Surgical Technique: The technique is based on Lejour’s method of single vertical scar breast reduction. The breast tissue is divided into three superiorly based pedicles. However, instead of joining the three pedicles, they are spread to redistribute tissue to quadrants which are deficient. This technique is combined with implant insertion if the breast volume is deficient or mastopexy if there is significant ptosis. The level of nipples is matched to achieve symmetry and areolar reduction done where indicated. We have used this for six patients with Type I/II/III (von Heimburg, 2000) tuberous breast deformity. Results and Discussion: The aesthetic results have been very good in terms of shape, volume, symmetry and patient satisfaction. A historical summary of the development of techniques for correction of tuberous breast is presented along with description of our method and its results.
Successful penile reconstruction following prior arteriovenous loop thrombosis due to undiagnosed protein-S deficiency and exogenous testosterone
Authors: Anoop Parameswaran , Malmande Vithal , Prakash Kumar M. N. , Rao Naveen 
Published: September 2016

ABSTRACTFlap failure from microvascular thrombotic occlusion is a rare but significant cause for unsuccessful reconstructive surgery. We encountered thrombosis of arteriovenous loop in a patient undergoing phallus reconstruction. Further investigations revealed underlying previously asymptomatic hypercoagulable state due to protein-S deficiency in addition to long-term exogenous testosterone administration. Role of thrombophilia testing, thrombogenic potential of testosterone and the need for therapeutic perioperative anti-coagulation in such situations are described here.
Replantation in scapulothoracic avulsion amputation of the right upper limb in a 3-year-old child- A preliminary report
Authors: Mahendru Sanjay , Khazanchi Rakesh Kumar , Brajesh Vimalendu , Jawed Akram , Aggarwal Aditya , Singh Hardeep , Singh Sukhdeep , Krishnan S. 
Published: September 2016

ABSTRACTReplantations for major amputations of upper extremity have been widely performed. We report a unique case of successful replantation of scapulothoracic avulsion amputation in a child. In this manuscript, we discuss the various challenges faced during the procedure and chances of neural recovery.