bluuebunny/crossref_metadata_2025 huggingface dataset:
Variability in the Preparation, Reporting, and Use of Bone Marrow Aspirate Concentrate in Musculoskeletal Disorders
Authors: Piuzzi Nicolas S. , Hussain Zaamin B. , Chahla Jorge , Cinque Mark E. , Moatshe Gilbert , Mantripragada Venkata P. , Muschler George F. , LaPrade Robert F.
Published: March 2018

Background:

Interest in the therapeutic potential of bone marrow aspirate concentrate (BMAC) has grown exponentially. However, comparisons among studies and their processing methods are challenging because of inconsistent reporting of protocols, as well as poor characterization of the composition of the initial bone marrow aspirate and of the final products delivered. The purpose of this study was to perform a systematic review of the literature to evaluate the level of reporting related to the protocols used for BMAC preparation and the composition of BMAC utilized in the treatment of musculoskeletal diseases in published clinical studies.

Methods:

A systematic review of the literature was performed by searching PubMed, MEDLINE, the Cochrane Database of Systematic Reviews, and the Cochrane Central Register of Controlled Trials from 1980 to 2016. Inclusion criteria were human clinical trials, English language, and manuscripts that reported on the use of BMAC in musculoskeletal conditions.

Results:

After a comprehensive review of the 986 identified articles, 46 articles met the inclusion criteria for analysis. No study provided comprehensive reporting that included a clear description of the preparation protocol that could be used by subsequent investigators to repeat the method. Only 14 (30%) of the studies provided quantitative metrics of the composition of the BMAC final product.

Conclusions:

The reporting of BMAC preparation protocols in clinical studies was highly inconsistent and studies did not provide sufficient information to allow the protocol to be reproduced. Moreover, comparison of the efficacy and yield of BMAC products is precluded by deficiencies in the reporting of preparation methods and composition. Future studies should contain standardized and stepwise descriptions of the BMAC preparation protocol, and the composition of the BMAC delivered, to permit validating and rationally optimizing the role of BMAC in musculoskeletal care.
Does Vancomycin Powder Decrease Surgical Site Infections in Growing Spine Surgery?
Authors: Thompson George H. , Poe-Kochert Connie , Hardesty Christina K. , Son-Hing Jochen , Mistovich R. Justin
Published: March 2018

Background:

Vancomycin powder has been demonstrated to be safe in children, and yet there are no data on its use to reduce surgical site infections (SSIs) in surgery for early-onset scoliosis.

Methods:

We performed a retrospective study of our patients treated for early-onset scoliosis in the period of 2010 to 2016. In 2010, we updated our standardized perioperative growing spine care path. The only later change was the gradual introduction of intrawound vancomycin powder. Procedures were categorized into either the control group (without vancomycin powder) or the experimental group (with vancomycin powder), with otherwise identical perioperative management. Initial insertion, revision, and lengthening procedures and final fusions were included. We compared the rate of postoperative SSIs per procedure between the groups.

Results:

Thirty-six patients who underwent 191 procedures met the inclusion criteria. The clinical and radiographic data were essentially the same between the groups. During the study period, 14 (39%) of the 36 patients developed ≥1 deep SSI. Only 2 patients had multiple acute infections. There were 87 procedures with 12 infections in the control group (SSI rate of 13.8% per procedure), while there were 104 procedures with 5 infections in the vancomycin group (4.8% per procedure). The difference in the SSI rate per procedure was significant (p = 0.038). The number of individual procedures needed to be performed using vancomycin to prevent an SSI was 10.9.

Conclusions:

The use of vancomycin powder in growing spine surgery for early-onset scoliosis is associated with a significant decreased risk of SSI. It appears to be effective even when previous surgeries have been performed without its use.

Level of Evidence:

Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
Clinical Outcomes Following the Latarjet Procedure in Contact and Collision Athletes
Authors: Privitera David M. , Sinz Nathan J. , Miller Lindsay R. , Siegel Elana J. , Solberg Muriel J. , Daniels Stephen D. , Higgins Laurence D.
Published: March 2018

Background:

Few studies have evaluated the success of the Latarjet procedure for recurrent anterior glenohumeral instability in the contact or collision athlete. The purpose of this study was to evaluate the return-to-sport and functional results of the Latarjet procedure in this select group.

Methods:

One hundred and nine consecutive contact or collision athletes (112 shoulders) treated with an open Latarjet procedure for recurrent anterior glenohumeral instability were retrospectively identified. Seventy-three shoulders in 73 patients (67%) were evaluated at a mean follow-up of 52 months (range, 24 to 120 months). The average age at surgery was 25.8 years (range, 15 to 54 years). The primary outcomes were the scores on the Western Ontario Shoulder Instability Index (WOSI), the American Shoulder and Elbow Surgeons (ASES) questionnaire, a visual analog scale (VAS) for pain, and return to sport. Predictors of return to sport were analyzed.

Results:

Six (8%) of the 73 patients experienced ≥1 postoperative dislocations. Ten additional patients (14%) experienced a perception of instability without a dislocation. The median postoperative WOSI and ASES scores were 382 (range, 0 to 2,016) and 93.3 (range, 21.7 to 100), respectively. The median postoperative VAS pain score was 0 (range, 0 to 10). Forty-nine percent (36) of the 73 patients returned to their preoperative sports level, 14% (10) decreased their activity level in the same sport, 12% (9) changed sports, and 25% (18) decreased their level of activity and changed sports or stopped participating in sports altogether. Patients with ≥2 stabilization procedures prior to the Latarjet procedure demonstrated a lower likelihood of returning to their original sport (p = 0.019; relative risk = 2.84; 95% confidence interval = 1.34 to 6.06). The percentage of glenoid bone loss showed no association with the return-to-sport rate (p = 0.507).

Conclusions:

The outcome of the Latarjet procedure in high-risk contact or collision athletes is variable. Patients who have fewer prior stabilization surgical procedures are more likely to successfully return to their original sport.

Level of Evidence:

Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
A Conceptual Model for the Evaluation of Surgical Missions
Authors: Bido Jennifer , Ghazinouri Roya , Collins Jamie E. , Diez Portela Desirée , Alcantara Luis , Thornhill Thomas S. , Katz Jeffrey N.
Published: March 2018

Background:

Medical missions to low and middle-income countries are increasingly frequent, with an estimated 6,000 trips sponsored by U.S. organizations accounting for approximately 200,000 surgical cases and $250 million in costs annually. However, these missions have received little critical evaluation. This paper describes the research program Operation Walk (Op-Walk) Boston, and proposes an evaluation model for similar surgical missions.

Methods:

We propose an evaluation model, borrowing from the work of Donabedian and enriched by evidence from our research program. The model calls for evaluation of the salient contextual factors (culture and beliefs), system management (structure, process, and outcomes), and sustainability of the program’s interventions. We used these domains to present findings from the quantitative and qualitative research work of Op-Walk Boston.

Results:

Op-Walk’s qualitative research findings demonstrated that cultural factors are important determinants of patients’ perceptions of arthritis etiology, physical activity patterns, and treatment preferences. Quantitative assessments documented that Dominican patients had worse lower-extremity functional status (mean Western Ontario and McMaster Universities Osteoarthritis Index [WOMAC] function score of 33.6) and pain preoperatively than patients undergoing total hip or knee replacement in the U.S. (WOMAC function score of 43.3 to 54), yet they achieved excellent outcomes (50-point improvement), comparable to those of their U.S. counterparts. Assessments of the quality and sustainability of the Op-Walk program showed that the quality of care provided by Op-Walk Boston meets Blue Cross Blue Shield Centers of Excellence (Blue Distinction) criteria, and that sustainable changes were transferred to the host hospital.

Conclusions:

Our proposed model offers a method for formal assessment of medical missions that addresses the call for evidence of their merit. We suggest that surgical missions adopt quantitative and qualitative strategies to document their impact, identify areas of improvement, and justify program continuation, growth, and support.
Genicular Nerve Radiofrequency Ablation
Authors: Kidd Vasco Deon
Published: March 2018

Knee osteoarthritis (OA) affects millions of Americans, and not every patient is amenable to surgery for a variety of reasons. Genicular nerve radiofrequency ablation (GNRFA) is emerging as an effective minimally invasive nonsurgical treatment option for symptomatic knee OA. GNRFA has been shown to provide consistent short-term (3 to 6 months), and sometimes longer, pain relief in patients with symptomatic knee OA or with pain syndrome following total knee arthroplasty. The data are limited to mostly smaller studies on the efficacy and safety of RFA in patients with symptomatic knee OA.
Karakteristik Flavor Beras Varietas Padi Aromatik dari Ketinggian Lokasi yang Berbeda
Authors: Tarigan Elsera , Jumali Jumali , Kusbiantoro B.
Published: March 2018

To express its optimum flavor, aromatic rice variety should be planted at a specific location. Elevation and soil types are generally considered as the main influencing factors. In this research, three sites, representing low, medium and high elevation, were used to test aromatic rice varieties for its flavor expression. The sites of research were Garut (over 1000 m above sea level/asl), Sumedang (over 500 m asl), and Subang (less then 500 m asl). The flavor components were measured using Gas Chromatograph Mass Spectrometer, GCMS. The data were analyzed using principle component method. Elevation of the sites greatly affected the flavor components of Gilirang, Cimelati, and Sintanur varieties. Among the volatile compounds constituting the rice flavor, hydro carbon aromatic and aldehyde were the most influential ones. Based on the principle component analysis, there were five components contributing to the flavor, namely: butyric acid, benzaldehyde, 2-nonen-1-ol, toluene, and hepthl alcohol. The 2AP (2-Acetyl-1-pyrroline) which gives the pandanus flavor in aromatic rice, was found only from the aromatic rice variety planted at high elevation of Garut. The volatile compounds influencing the taste preference, based on hedonic test, was detected most on Cimelati rice variety as a strong flavor aroma. The general responses of panelist with regard to the aroma, showed moderate aroma to all varieties tested. But for taste, texture, and preferences, most panelists chose Sintanur variety planted at medium elevations (Sumedang).
Similarity of 26 New Released Rice Varieties and Rice Parental Hybrids Based on 36 SSR Markers
Authors: Susanto Untung , Satoto Satoto , Rohmah Nofi A. , Mejaya Made Jana
Published: March 2018

More than 200 rice varieties had been released in Indonesia, but the genetic variability among those released varieties was suspected to be relatively low. Molecular markers, especially SSR could be used as a tool to disect the distinctness among rice genotypes, albeit phenotipically similar varieties. The technique could also be used to prove the authenticity of a variety. This research was aimed to obtain DNA fingerprinting data of new released rice varieties and hybrid parental lines using SSR markers. A total of 26 rice genotypes consisted of three upland, ten irrigated, five swampy rice varieties, along with eight hybrid parental lines were used in this experiments. The DNA was extracted from young leaf samples using CTAB modified method and was amplified with 36 SSR markers linked to important rice traits which spread accross the 12 rice chromosomes. The experiment was conducted in Plant Breeding Laboratory of Indonesian Center for Rice Research (ICRR) during 2012. The results showed that PIC value of the genotypes were mostly at medium level of the genetic diversity with the average value of 0.4451. The phylogenetic analysis showed that at the genetic distance of 10%, the genotypes were separated into 9 groups, i.e. Inpago 6, Inpara 5, and BH33d each stood alone while (Inpara 1, Inpara 2 , and Inpara 3); (Inpari 18 and Inpari 19, Inpago 4, Inpago 5, and Inpara 4); (Inpari 11, Inpari 12, Inpari 13, Inpari 14, Inpari 15, Inpari 16, Inpari 17, and Inpari 20); (GMJ6B, B6, and IR79156B); (PK21, BH95E, Bio9, and R14) each belong to one group. The grouping of the genotypes in this study seemed to follow the adaptation type to agro ecosystems. The hybrid parental lines tended to stay in different group from the inbred varieties. The application of these 36 SSR markers was able to distinguish among 26 genotypes rather distinctly.The use of more markers should give more powerful data to distinguish among genotypes.
Daya Hasil dan Stabilitas Ratun Galur Padi pada Lahan Pasang Surut
Authors: Sinaga Parlin H. , Trikoesoemaningtyas Trikoesoemaningtyas , Sopandie Didy , Aswidinnoor Hajrial
Published: March 2018

The study was aimed to determine the productivity and yield stability of ratoon rice genotypes in three environments and to obtain rice genotypes suistable for ratoonning on specific environment of tidal land. The experiment was designed in a randomized complete block with three replicates. Seedling was planted at 21 days old with spacing of 20 x 20 cm, one seedling per hill. Plants were harvested 30 days after heading by cutting at a height of 10 cm from the soil surface. One day after harvest, the land was irrigated as high as 3 cm and fertilized with Urea 50 kg/ha, TSP 30 kg/ha, and KCl 25 kg/ha. Yield stability was analyzed according to Eberhart and Russel (1966). Ratoons were sensitive to the environmental changes. Genotype IPB97-F-13-1-1, IPB 4S, and IPB 3S produced the main crop + ratoon grain yield of 5.26 t/ha, 5.14 t/ha, and 5.64 t/ha dry milling grain (DMG), respectively. Based on yield of the main crop + ratoon, IPB97-F-13-1-1 and IPB 4S was each considered as adaptable to the suboptimum condition (bi<1). Ratoon crop yield of genotype IPB97-F-13-1-1, IPB 4S, and IPB 3S each was the highest in three locations. The ratoon crop contribution to the rice production was from 31.3% to 61.9% to the main crop.
El uso de Twitter por parte del Gobierno español durante la crisis del ébola
Authors:   Universidad Panamericana (Campus Guadalajara), Díaz Cerveró Elba , Vázquez Barrio Tamara ,   Universidad CEU San Pablo
Published: March 2018

El 6 de octubre de 2014 se anunciaba a la opinión pública que la auxiliar de enfermería María Teresa Romero Ramos, que había atendido al misionero español Manuel García Viejo contagiado por ébola en Sierra Leona y repatriado a España, daba positivo en la primera prueba que se le hacía para detectar el virus. Era el primer caso de contagio fuera del territorio africano y todos los medios de comunicación del mundo estaban pendientes de la información facilitada por las autoridades españolas. La improvisación y la falta de liderazgo en la primera comparecencia pública de la ministra de Sanidad, Ana Mato, provocaron la sensación de que la situación no estaba bajo control y las especulaciones, los rumores y las opiniones empezaron a circular no solo en los medios periodísticos, sino principalmente a través de Internet y, especialmente, en las redes sociales. Entre las acciones de comunicación adoptadas por el Gobierno se incluyó la creación de una cuenta de Twitter. El objetivo de esta investigación es analizar la cantidad y el tipo de información facilitada y la respuesta que esta cuenta recibe por parte de los internautas. La metodología utilizada es el análisis de contenido cuantitativo y cualitativo. Como muestra se seleccionaron todos los tweets publicados en el perfil oficial @Info_Ebola_Es durante el tiempo que duró la crisis y los comentarios que produjeron. La conclusión general es que la comunicación gubernamental de la crisis a través de la red social habilitada para este fin adolece de una falta de inmediatez, proactividad y humanización.
La mujer cubana en el ejercicio del periodismo deportivo
Authors:   Universidad de Pinar del Río (Cuba), Seguí León Gladys Caridad
Published: March 2018

En ese trabajo se evidencian las contradicciones existentes entre la libertad de derechos de la mujer a ejercer un trabajo mientras se encuentre capacitada para hacerlo instituido a nivel estatal y la desigualdad a nivel social. La mujer cubana hoy goza de muchas libertades y la discriminación hacia la misma ha disminuido, sobre todo su erradicación a nivel social. Goza de libertades que aún no sueñan otras en el mundo, la escolaridad, el trabajo el derecho a percibir el mismo salario que el hombre cuando desempeñan una labor común, constituye algunas de estas facilidades. Sin embargo, desde la sociedad la mujer continua viviendo bajo los estatutos del patriarcado, si bien la violencia intrafamiliar contra las mismas es en menor medida y se combate con la colaboración de la Federación de Mujeres Cubanas (F.M.C.) organización que desde su fundación trabaja por la incorporación y libertad de la mujer en la familia y la sociedad, existen esferas aún dónde la mujer no ha podido desempeñarse en reales condiciones de igualdad. Una de estas pocas esferas es el ejercicio del periodismo deportivo y muestra de ello es no sólo la cantidad de estereotipos que rodean la profesión, el trabajo que pasan estas mujeres para llegar a ejercer, aún no existe en el país ninguna mujer narradora y de once mujeres que se dedican a informar sobre deporte sólo lo hacen exclusivamente como periodistas deportivo dos de ellas.
La representación eufemística de la relación gay en el periodismo serio
Authors:   Universidad de Valencia, Carratalá Adolfo
Published: March 2018

La visibilidad de las relaciones homosexuales ha logrado un espacio considerable y una cobertura relativamente digna en los medios de comunicación social, tanto en contenidos informativos como de entretenimiento. Sin embargo, esta representación continúa sufriendo un tratamiento estigmatizador en determinados discursos periodísticos, que emplean el eufemismo como recurso para aludir a las parejas formadas por dos hombres o dos mujeres, sobre todo en noticias que abordan asuntos considerados especialmente sensibles o serios como las grandes tragedias o el fallecimiento de personas ilustres. Este trabajo, que pretende conocer qué consecuencias tiene esta práctica en las características propias de la información periodística, aplica el análisis del discurso y de la desigualdad para abordar este fenómeno a partir del estudio de un caso concreto: la cobertura de un trágico accidente aéreo en el que fallecieron dos hombres que mantenían una relación amorosa. La muestra está compuesta por medios de comunicación españoles, italianos y franceses. Los resultados obtenidos demuestran que predominan los ejemplos en los que la relación gay aparece oculta o enmascarada bajo términos eufemísticos. Este hecho supone incoherencias en el mensaje de los medios, impide a los lectores una exacta comprensión de los hechos y confirma que el contexto cultural continúa privilegiando la sexualidad hegemónica en el espacio público.
Un modelo para analizar la representación simbólica del escándalo de corrupción política desde la teoría del framing: aplicación al ‘caso Umbra’
Authors:   Universidad Católica San Antonio de Murcia (UCAM), Zamora Rocío , Marín Albadalejo Juan Antonio ,   Universidad Católica San Antonio de Murcia (UCAM)
Published: March 2018

Lo que algunos ya llaman una cultura política del escándalo (Barkin, 1999; Thompson, 2001; Castells, 2009) ha supuesto el reconocimiento del poder de los medios en la construcción simbólica del escándalo, a partir del énfasis en ciertos marcos interpretativos con los que se narran las conductas que condicionan la percepción pública de los escándalos políticos. Este trabajo se centra en la representación simbólica de los escándalos de corrupción política. El análisis de la cobertura periodística sobre un caso de gran actualidad en Murcia, el ‘caso Umbra’, demuestra que, además de por el relato político-técnico, legal y moral, los escándalos de corrupción política pueden ser también enmarcados desde el enfoque reputacional, es decir, a partir de preocupación por el deterioro de la imagen que la proliferación de escándalos de corrupción política ofrece sobre un territorio concreto y sus instituciones.
Cucurbit Powdery Mildew-resistant Bitter Gourd Breeding Lines Reveal Four Races of Podosphaera xanthii in Asia
Authors: Dhillon Narinder P.S. , Sanguansil Supannika , Srimat Supornpun , Schafleitner Roland , Manjunath B. , Agarwal Parag , Xiang Qu , Masud Mohammed Abu Taher , Myint Thaingi , Hanh Ngo Thi , Cuong Tran Kim , Balatero Conrado H. , Salutan-Bautista Venus , Pitrat Michel , Lebeda Aleš , McCreight James D.
Published: March 2018

Bitter gourd (Momordica charantia L.) is a commercially and nutritionally important market vegetable in Asia cultivated mainly by smallholder farmers. Cucurbit powdery mildew (CPM) caused by Podosphaera xanthii (Px) is a nearly ubiquitous and serious fungal disease of bitter gourd. Five bitter gourd breeding lines (THMC 113, THMC 143, THMC 153, THMC 167, and THMC 170) were selected at the World Vegetable Center for resistance to a local isolate of Px in Kamphaeng Saen, Thailand. We evaluated the resistance potential of these five inbred lines against local isolates of Px at 12 locations in five Asian countries. Plants were inoculated with the respective local Px isolate 15 and 30 days after transplanting and additional Px-infected plants of the inoculated control were interplanted throughout each test. Plants were rated 60 days after transplanting for CPM reaction using a 0 (no evidence of infection) to 5 (>75% infection evident on individual leaves) disease severity scale. THMC 153 and THMC 167 were resistant to the local race of Px in all locations, whereas THMC 143 was observed resistant in all test locations except one in China. THMC 113 was resistant in each location except one in India. THMC 170 was susceptible in three locations in India. The multilocation tests revealed four unique Px races on bitter gourd in different Asian countries and sources of resistance for breeding CPM-resistant bitter gourd cultivars. Six strains of Px isolated from other cucurbits (Cucumis and Cucurbita) and representing five melon CPM races were unable to infect the susceptible M. charantia accession THMC 144 and the five resistant breeding lines, indicating pathotype differences between them and an isolate of M. charantia origin typed as race 1 on melon. THMC 143 and THMC 167, which originated from India, exhibited good yield potential in trials conducted in Thailand, Myanmar, Vietnam, and Bangladesh.
Vineyard Floor Management and Cluster Thinning Inconsistently Affect ‘Pinot noir’ Crop Load, Berry Composition, and Wine Quality
Authors: Reeve Alison L. , Skinkis Patricia A. , Vance Amanda J. , McLaughlin Katherine R. , Tomasino Elizabeth , Lee Jungmin , Tarara Julie M.
Published: March 2018

Growers of high-end ‘Pinot noir’ wine grapes (Vitis vinifera L.) commonly reduce yield by cluster thinning with the goal of increasing fruit quality; however, there are no objectively defined yield targets to achieve optimum fruit composition. Canopy leaf area relative to fruit yield can affect total soluble solids (TSS), and recommendations have been established for warm wine grape production regions. However, the relationship between leaf area and photoassimilation differs among climates and training systems. Leaf area to yield (LA:Y) ratios developed in warm, arid regions may not be suitable for cool, wet regions such as western Oregon. A 3-year field study was conducted to elucidate relationships between canopy to yield ratios and berry composition for ‘Pinot noir’. Vegetative growth and fruit yield were manipulated through competitive cover cropping and cluster thinning. Growth was manipulated in three ways: perennial red fescue (Festuca rubra L.) was grown in 1) both (Grass), 2) one (Alternate), or 3) neither (Tilled) of the alleyways flanking the vine row. Within each vineyard floor treatment, fruit clusters were thinned to one per shoot (Half Crop) or vines were left unthinned (Full Crop). Floor management influenced both canopy size and yield because of altered vine nitrogen (N) status. Effects of crop load on berry components were not always consistent between the crop load metrics used [yield to pruning weight (Y:PW) ratio or LA:Y]. In 2 years, TSS reached a maximum at similar LA:Y; however, this did not necessarily produce optimum TSS. Yield had the greatest influence on pH and total anthocyanins (ACY) in the highest yielding, coolest year. Crop load metrics were not reliable predictors of TSS because of the dominant effect of seasonal variation. Relationships between canopy to yield metrics and other berry components were partially explained by tissue N, photosynthetic photon flux (PPF) through the cluster zone, and/or yield. Cluster thinning to adjust yields may not alter source to sink relationships or canopy to yield ratios enough to overcome ripening limitations in cool climates. Only one wine vintage had sensory differences with Alternate-Half Crop and Alternate-Full Crop wines ranked high quality and Tilled-Half Crop and Tilled-Full Crop wines ranked low quality by both consumer and winemaker panels. Therefore, cluster thinning may have limited impact on wine sensory properties.
Potato Response to Polyhalite as a Potassium Source Fertilizer in Brazil: Yield and Quality
Authors: Mello Simone da Costa , Pierce Francis J. , Tonhati Rachel , Almeida Guilherme Silva , Neto Durval Dourado , Pavuluri Kiran
Published: March 2018

Polyhalite (PH) is a hydrated sulfate evaporite mineral containing potassium, calcium, magnesium, and sulfur, nutrients all required in significant quantities by crops, but has limited evaluation as a fertilizer for potato (Solanum tuberosum L.). Fertilizer source and application rate field trials were conducted to evaluate PH as a fertilizer for potato production in the weathered tropical soils in Brazil. We selected two locations in the potato producing region of Southeast Brazil in 2015–16, one trial was conducted during the wet season at Tapira in São Paulo and the other during the winter season at Casa Branca in Minas Gerais. A common blend, 4–14–8, was made with either muriate of potash (MOP), sulfate of potash (SOP), or PH as the K source; with kieserite and gypsum added to the SOP to make a synthetic PH with similar composition; P either as single super phosphate (SSP) for the MOP blend or mono ammonium phosphate (MAP) for the PH and SOP blends; and N as urea adjusted for the N in MAP. All blends were applied at four application rates of 62, 125, 187, and 249 kg K/ha. A control was also included consisting of N and P as urea and MAP but no K, Ca, Mg, or S. Total and marketable yields as well as potato quality including dry matter, starch, soluble solids, hardness, and crunchiness were measured at harvest using standard techniques. At Tapira, potato yields increased linearly with increasing K application rate from 22.4 t·ha−1 for the control to the highest yield of 29.2 t·ha−1 and were higher for PH and SOP than MOP (28.8, 29.2, and 25.3 t·ha−1, respectively). At Casa Branca, yields increased from 31.5 t·ha−1 for the control to 42.4 kg·ha−1 at the 62 kg K/ha application rate with no further increases at higher rates and no differences among fertilizer blends at any application rate. Polyhalite blend increased dry matter and starch at the higher application rates compared with MOP and SOP at Tapira and increased potato hardness and crunchiness at the optimum 62 kg K/ha application rate at Casa Branca. Yield response was similar for PH and SOP but quality differences between these two fertilizer blends were observed even though they were similar in composition. Differences between PH and MOP may be related either to Cl or lack of Mg in the MOP blend. PH performed well as a fertilizer for potatoes as it produced equal or higher yields and provided benefits to potato quality when compared with MOP or SOP as a K source in a common fertilizer blend.
Tracking user satisfaction of rural water services in northern Ghana
Authors: Kumasi T. C. , Agbemor Benjamin Dawurah
Published: March 2018

The article discusses the level of user satisfaction with actual handpump service levels and performance of service providers. In this paper, we outline some contradiction between actual service levels, performance of service providers and perception of water users. The findings suggest that users appeared satisfied with quantity and reliability of water facilities. In contrast, they were not satisfied with the time it takes them to access water, especially when the quantity of water diminishes. The sad irony is that tariffs are perceived affordable yet users are unwilling to pay for water. Their responses paint a picture of a payment system that is geared at reactive maintenance over preventative maintenance regime. It is worth noting here that this phenomenon raises questions on the sustainability of water systems when sound financial management is key to sustaining services. Service providers were perceived to perform better than they actually did. Perhaps this was due to lack of information and ignorance on the roles of service providers. In this regard it is imperative that the Community Water and Sanitation Agency (CWSA), implementing partners, the district assemblies and Water and Sanitation Management Teams (WSMTs) take steps to address the technical, social, financial and institutional factors during the planning, implementation and post-construction support which invariably affect sustainability.
APRESENTAÇÃO
Authors: Döring Katharina , Kleber Magali
Published: March 2018

O presente Dossiê, focando a temática Música e Educação – uma relação interdisciplinar e pluricultural, almeja contribuir com a discussão e reflexão sobre campos epistemológicos e práticas sociais que envolvem a formação do ser humano, considerando os diferentes contextos socioculturais. Trata-se de um empenho editorial que marca o compromisso com a produção acadêmica e científica que amplia as fronteiras do conhecimento mediante estudos e pesquisas que transitam por dimensões de uma base sociocultural e antropológica do conhecimento musical e educacional, evidenciando sua função social e seu poder de transformação, associado às diferentes manifestações da realidade.
MITOLOGIA DOS ORIXÁS: MOSTRA ARTÍSTICA INTERDISCIPLINAR ENVOLVENDO ALUNOS DE LICENCIATURA
Authors: Braga Simone Marques , Santos Luciene Souza , Lopes Aaron Roberto de Mello de Mello
Published: March 2018

Envolvendo estudantes de Licenciaturas diversas, essa experiência desenvolveuse a partir da criação e implementação de uma disciplina do Departamento de Educação da Universidade Estadual de Feira de Santana (UEFS) – Formação de Contadores de Histórias –, articulada com uma disciplina do Colegiado de Música da UEFS – História e Diversidade da Música Brasileira II. A primeira implementou os fundamentos da Arte de Contar Histórias no universo da Mitologia dos Orixás e introduziu conhecimentos básicos acerca da voz falada e cantada a partir do canto em Iorubá. A segunda enfatizou o trabalho com os toques rítmicos e cantigas dos cultos de matriz africana. A experiência interdisciplinar ainda contou com a colaboração de uma professora de teatro e um professor de dança afro que realizaram oficinas e ampliaram o repertório artístico dos estudantes. Buscou-se com essa experiência responder algumas inquietações: É possível desmistificar crenças e medos dos estudantes de Licenciaturas sobre a Mitologia dos Orixás? A partir de uma experiência estética sensorial de escuta e narração dessas histórias, é possível valorizar as relações étnico-raciais na universidade? Como desenvolver saberes pedagógicos e musicais envolvendo a matriz africana em uma licenciatura específica de música? Como resultado tivemos uma Mostra Performática cuja experiência cênica foi assistida por estudantes e professores de várias licenciaturas da Universidade, como também os processos formativos desta experiência foram abordados e discutidos através de uma roda de conversa.
TRAMA NA CINELÂNDIA: A NORMATIZAÇÃO DO ENSINO RELIGIOSO NO MUNICÍPIO DO RIO DE JANEIRO
Authors: Castelo Branco Jordanna
Published: March 2018

O presente texto tem como objetivo analisar o processo de elaboração da Lei nº 5.303/2011, que cria o quadro permanente de professores de ensino religioso nas escolas municipais da rede pública de ensino do Rio de Janeiro. Para isso, foi realizada revisão bibliográfica sobre o ensino religioso nas escolas públicas, levantamento e análise de artigos, de notícias em jornais e revistas no período de 2008 a 2013, das sessões da Câmara dos Vereadores ocorridas de abril a outubro de 2011 e de documentos legais (Diário Oficial, Pareceres, Indicações, Leis e Projetos de Lei), de 2008 a 2013, do município do Rio de Janeiro a respeito do ensino religioso e entrevistas com agentes de diferentes instâncias educacionais do município em questão. O estudo aponta a interferência do campo religioso no campo educacional, pela vertente ideológica, através da criação do quadro permanente de professores de ensino religioso nas escolas municipais da rede pública de ensino do Rio de Janeiro, o que fica evidente nos embates em torno da formação exigida para professor de ensino religioso e na distribuição de vagas do concurso.
Organização: Alexandre Santos e Niura Legramante Ribeiro
Authors: . . .
Published: March 2018

Dossiê organizado por Alexandre Santos e Niura Legramante Ribeiro, professores do Instituto de Artes da UFRGS, orientadores do Programa de Pós-Graduação em Artes Visuais, PPGAV/IA/UFRGS.
A pós-fotografia explicada aos macacos
Authors: Fontcuberta Joan
Published: March 2018

O artigo discute como as máquinas estão cada vez mais independentes do humano e atuam sem a nossa mediação, de forma que adquirem a sua própria autonomia, como os GPS, os smartphones e todos os tipos de computadores. Tais mudanças fizeram com que nos dissolvêssemos nelas, sentindo e pensando com elas. Neste contexto, como se posiciona a fotografia que historicamente procurou salvaguardar a identidade e a memória? Isto geraria a dessubjetivação da imagem? Como ficam as conexões entre a autoria, a criação e a nossa condição humana?
Instalação e "Site Specific Works": arte como oposição
Authors: Fabris Marcos
Published: March 2018

Este artigo pretende investigar a obra da artista contemporânea norte-americana Barbara Kruger, contextualizando o surgimento e desenvolvimento das artes da instalação e dos chamados "Site Specific Works", ferramentas frequentemente utilizadas pela artista. Serão igualmente investigadas algumas de suas matrizes artísticas, bem como o diálogo profícuo estabelecido com uma certa tradição, para a produção do que considero ser uma arte combativa e compósita, que amalgama e refuncionaliza elementos da publicidade, das artes visuais e da fotografia.
Notas sobre a imagem encenada, paradigma reprovado da história da fotografia?
Authors: Poivert Michel
Published: March 2018

A noção de imagem encenada é aqui colocada em perspectiva no plano teórico e histórico. No plano histórico, trata-se de mostrar como a encenação da fotografia corresponde a uma história do "tableau vivant" desde o século XIX. Contrariamente ao que se costuma pensar, a fotografia posada não é o resultado das exigências técnicas da duração da pose. Não se trata de um arcaísmo, mas sim de uma estética onde o fotógrafo pensa o espaço da representação como uma espécie de palco de teatro sobre o qual os modelos vêm atuar. Assim, a estética da imagem encenada repousa sobre uma ideia de imagem na qual o fotógrafo é reduzido à função de operador e onde o espectador é colocado em contato com o palco através de uma espécie de tela neutra. Não se trata verdadeiramente de um “gênero”, mas de uma fotografia antimoderna, rejeitando o naturalismo e as aplicações da fotografia à informação. Mais fundamentalmente, a imagem encenada nos lembra que a relação entre fotografia e teatro, intuída por Roland Barthes em "A câmara clara", repousa sobre uma problemática simétrica: o teatro a partir das teorias de Diderot até Jean-Paul Sartre foi pensado como uma imagem.
Números publicados / back issues
Authors: . . .
Published: March 2018

Números publicados / back issues
A fotografia como apontamento visual para a gravura
Authors: Ribeiro Niura Legramante
Published: March 2018

Sabe-se que desde o surgimento da fotografia, no século XIX, a imagem

técnica ofereceu subsídios de motivos compositivos para os processos de

criação dos gravadores. Este artigo trata das relações entre a fotografia e a

gravura nas obras de determinados artistas contemporâneos. A fotografia

como registro de um instantâneo de luz, de estruturas espaciais de paisagens, de memórias corporais, entre outras, é o que se pode encontrar

nas obras de artistas como Alex Flemming, Claudio Mubarac, Lurdi Blauth,

Marco Buti, Maristela Salvatori, Miriam Tolpolar e Regina Silveira. O estudo

procura mostrar como as gravuras que partem de premissas de fotografias

podem conservar, ou não, evidências dos códigos fotográficos.
Apontamentos sobre philosophy of tecnology: the technological condition: an anthology
Authors: Rama Jander Luiz
Published: March 2018

Apontamentos sobre Philosophy Of Technology: The Technological Condition - An Anthology, uma coletânea de artigos acadêmicos dedicada à filosofia da tecnologia, editada por Robert C. Scharff e Val Dusek.
Quatro olhares para a Cia de Foto
Authors: Schenkel Camila Monteiro , Jacinto Rafael , Kehl João , Figueiroa Pio , Lopes Carolina
Published: March 2018

Ao longo de dez anos de atividade, o coletivo Cia de Foto desenvolveu trabalhos em artes visuais, jornalismo e publicidade. A insistência em creditar suas obras apenas ao grupo, sem indicar qual ou quais integrantes estavam envolvidos diretamente em sua produção, colocou a Cia de Foto no centro das discussões sobre autoria e sobre as formas de produção de fotografia na contemporaneidade. Entre 2003 e o final de 2013, quando anunciou o encerramento de suas atividades, o coletivo foi expandindo e transformando sua atuação, além de passar por diversas formações e tentativas de organização. As entrevistas a seguir apresentam um balanço da trajetória do grupo a partir do ponto de vista de seus quatros membros.
A Pós-Graduação em Artes Visuais no Instituto de Artes da UFRGS [ Graduation in visual arts of the Arts Institute at UFRGS ]
Authors: Editores Equipe Editorial -
Published: March 2018

https://www.ufrgs.br/ppgav/programa/
Uma palavra vivida
Authors: Michael Androula , Villeglé Jacques
Published: March 2018

Em um tom caloroso, com uma rara clarividência e sensibilidade, grande testemunha de uma época, Jacques Villeglé dá um depoimento excepcional sobre o estado da arte da crítica na França, desde meados do século XX. Recorda seus anos de formação em plena Ocupação da França pelos alemães, quando era difícil se documentar. Ser artista, ele pensava, não era uma atividade para ele, já que os críticos reacionários qualificavam então de judeus ou de degenerados os artistas mais importantes da época. Ele gostaria de ter convivido com Picasso, mesmo que o considerasse, de certo modo, seu rival. Duchamp não contara para seu trabalho; aliás, ele confessa não ter se esforçado para encontrá-lo apesar das várias oportunidades que se apresentaram. Discorre sobre sua relação com o crítico de arte e autor do manifesto do Novo Realismo, Pierre Restany, e descreve em detalhes vários traços de sua personalidade complexa. Paralelamente, revela de maneira implícita sua própria prática da descolagem dos cartazes rasgados, atividade que consistia numa ação direta na vida, de um alcance sociológico e político certo e que rompia definitivamente com a arte do cavalete.
Informações gerais sobre n.36
Authors: Editores Equipe Editorial -
Published: March 2018

Informações gerais sobre a revista Porto Arte.
Editorial - EN
Authors: Editores Equipe Editorial -
Published: March 2018

.
“O que me motiva é perseguir o que é ser livre hoje”: uma conversa com Marcelo Cidade
Authors: Scovino Felipe , Cidade Marcelo
Published: March 2018

Em entrevista a Felipe Scovino, o artista Marcelo Cidade revisita diferentes trabalhos que realizou ao longo das décadas de 2000 e 2010, apontando suas motivações e comentando as dimensões críticas dessa obra, comumente voltada ao espaço público, seja como campo de ação, seja como temática. Da conversação, emergem temas como as relações entre arte e crime, passando por questões ligadas ao medo, à vigilância social, à violência institucionalizada e ao exercício da liberdade. A entrevista aborda ainda o diálogo entre a produção artística contemporânea e a tradição histórica e historiográfica da arte.
A entrevista com artistas como dispositivo de embate e a disputa discursiva dos anos 1960 e 1970
Authors: Almeida Juliana Gisi Martins de
Published: March 2018

Este artigo propõe uma reflexão sobre a entrevista com artistas como dispositivo de embate na interação de dois sujeitos, tendo em vista que o desejo por apreender trabalhos de arte por suas diversas vias, torna a palavra do artista objeto privilegiado. Algo que pode ser vislumbrado pela compreensão do contexto dos anos 1960/70 quando uma disputa discursiva no campo da arte se dá pela reivindicação dos artistas pelos espaços de fala. A palavra do artista não é uma verdade sobre o trabalho, pois tão determinada histórica, social e culturalmente como ele; assim, a entrevista pode ser compreendida como um mecanismo que abre a produção de sentido e a expande no cruzamento das visões interna e externa de uma prática artística.
Normas para publicação
Authors: Editora PORTO ARTE :
Published: March 2018

Normas para a publicação em 2017.
UTILIZATION OF ORGANIC LIQUID WAS TEAS FERTILIZER WITH DIFFERENT CONCENTRATION ON THE GROWTH AND YIELD OF BOK CHOY (BRASSICA RAPA VAR. CHINENSIS)
Authors: Nugroho Restu Dwi , Pasigai Muhammad Anshar , Bahrudin Bahrudin
Published: March 2018

This research aimedto study the influence ofthe right type and concentration organic waste on the growth and yield of bok choy. This research was compiled using a randomized block design factorial with two treatment factors, The first factor type of waste, second factor of concentration spraying. Thus obtained 8 experimental unitsconsists oforganic liquid waste cow urine (concentration of  20%, 40%, 60% and 80%), organic liquid waste water catfish pond (concentration of  20%, 40%, 60% and 80%). Each unit treatment was repeated three times so that there were 24 experimental units. The observed variables includeplant height (cm), leaves number, fresh weight of roots stems and leaves (g), dry weight of roots, stems and leaves (g), the amount of leaf(cm2), and the fresh weight of the plants (ton ha-1). The results showed that interaction between the type of organic liquid waste concentration of 40% (equivalent to 40 mL L-1)gives better results than other  concertation , Types of organic waste liquid cow urinegave better resultsthanorganic liquid waste water catfish pond, and the concentration better of organic liquid waste in a concentration of 40% (equivalent to 40 mL L-1).
Caristi-Kirk type and Boyd and Wong-Browder-Matkowski-Rus type fixed point results in b-metric spaces
Authors: Miculescu Radu , Mihail Alexandru
Published: March 2018

In this paper, based on a lemma giving a sufficient condition for a sequence
with elements from a b-metric space to be Cauchy, we obtain Caristi-Kirk type
and Boyd&Wong-Browder-Matkowski-Rus type fixed point results in the framework
of b-metric spaces. In addition, we extend Theorems 1, 2 and 3 from [M.
Bota,V. Ilea, E. Karapinar, O. Mle?ni?e, On ?*-?-contractive multi-valued
operators in b-metric spaces and applications, Applied Mathematics &
Information Sciences, 9 (2015), 2611-2620].
Complete moment convergence forweighted sums of extended negatively dependent random variables
Authors: Ding Yang , Tang Xufei , Deng Xin , Wang Xuejun
Published: March 2018

In this paper, the complete moment convergence for the weighted sums of
extended negatively dependent (END, in short) random variables is
investigated. Some general conditions to prove the complete moment
convergence are provided. The results obtained in the paper generalize and
improve the corresponding ones for some dependent sequences.
On the equivalence and qualitative behavior of the rational differential equations
Authors: Zhou Zhengxin
Published: March 2018

Recent study has shown great interest in the existence of center for planar
differential systems. Sufficient conditions have been given for a critical
point of some polynomial systems to be a center. However, it is challenging
to generalize these results to higher-order or non-polynomial systems by
traditional methods. In this paper, we tackle the problem by studying the
equivalence of differential systems using the Mironenko?s method. Our method
includes the construction of RF- integrals for the rational differential
equations, we give some new criterions for two differential equations to be
equivalent. Applying these results to the study of center of planar
differential systems, we generalize the conclusions made in existing
literature for a specific polynomial system to a wide range of higher-order
polynomial or non-polynomial systems.
Distinguishing number and distinguishing index of certain graphs
Authors: Alikhani Saeid , Soltani Samaneh
Published: March 2018

The distinguishing number (index) D(G) (D0(G)) of a graph G is the least
integer d such that G has an vertex labeling (edge labeling) with d labels
that is preserved only by a trivial automorphism. In this paper we compute
these two parameters for some specific graphs. Also we study the
distinguishing number and the distinguishing index of corona product of two
graphs.
Time-like loxodromes on helicoidal surfaces in Minkowski 3-space
Authors: Babaarslan Murat , Kayacik Mustafa
Published: March 2018

Loxodromes in Euclidean 3-space are often used in navigation. We study
time-like loxodromes which cut all meridians on helicoidal surfaces at a
constant Lorentzian angle in Minkowski 3-space.
Symmetries in some extremal problems between two parallel hyperplanes
Authors: Ribeiro Merkle
Published: March 2018

Let M be a compact hypersurface with boundary ?M = ?D1(?D2, ?D1 ( ?1, ?D2 (
?2, ?1 and ?2 two parallel hyperplanes in Rn+1 (n ? 2). Suppose that M is
contained in the slab determined by these hyperplanes and that the mean
curvature H of M depends only on the distance u to ?i,i = 1,2 and on (u. We
prove that these hypersurfaces are symmetric to a perpendicular orthogonal to
?i,i = 1, 2, under different conditions imposed on the boundary of
hypersurfaces on the parallel planes: (i) when the angle of contact between M
and ?i,i = 1,2 is constant; (ii) when ?u/?? is a non-increasing function of
the mean curvature of the boundary, ?? the inward normal; (iii) when ?u/??
has a linear dependency on the distance to a fixed point inside the body that
hypersurface englobes; (iv) when ?Di are symmetric to a perpendicular
orthogonal to ?i,i=1,2.
Some extensions of the Prabhu-Srivastava theorem involving the (p,q)-gamma function
Authors: Liu Ji-Cai , Liu Jichun
Published: March 2018

In this paper, we obtain some limit formulas for derivatives of (p,q)-gamma
function and (p,q)- digamma function at their poles. These limit formulas
extend the Prabhu-Srivastava theorem involving gamma function and digamma
function.