AVALIAÇÃO DA UNIFORMIDADE DE APLICAÇÃO DE ÁGUA EM GOTEJADORES EM FUNÇÃO DO TEOR DE FERRO

1 RESUMO Este trabalho teve por objetivo estudar a variação de vazão em tubogotejadores NaanPC laranja e NaanPC azul em função de precipitados químicos, ao longo do tempo de funcionamento, quando submetidos a uma água rica em ferro, avaliando-se especificamente o coeficiente de uniformidade de Christiansen (CUC) e o coeficiente de uniformidade de distribuição (CUD). O experimento foi desenvolvido em uma bancada de ensaios para tubogotejadores no Laboratório de Ensaio de Equipamentos para Irrigação do Departamento de Engenharia Rural da Faculdade de Ciências Agronômicas - UNESP, localizado no município de Botucatu – SP. O experimento foi montado em esquema fatorial 2x2x7, sendo duas doses de Fe, dois modelos de gotejadores e sete tempos de funcionamento, com três repetições, totalizando 84 parcelas experimentais. Efetuou-se a análise de variância pelo teste F. As médias das vazões dos gotejadores foram comparadas pelo teste de T de Student a 5% de probabilidade. Os resultados obtidos não apontaram diferença significativa nas diferentes doses de ferro. Entretanto, os resultados apontaram diferença significativa na interação gotejador x tempo e coeficiente de uniformidade de Christiansen (CUC). UNITERMOS: coeficiente de uniformidade de Christiansen(CUC), coeficiente de uniformidade de distribuição (CUD), entupimento de emissores. BRAUER, R.L; CRUZ, R. L; VILLAS BÔAS, R. L.; PLETSCH, T. A.EVALUATION OFWATER APPLICATION UNIFORMITY IN DRIPPERSIN FUNCTION OF IRON CONTENT 2 ABSTRACT This work aimed to study the occurrence of chemical precipitates effects in two types of drip hose (NaanPC orange and blue) due to chemical precipitation along the operating time, when subjected to water rich in iron, specifically evaluating the Christiansen uniformity coefficient (CUC) and distribution uniformity (DU). The experiment was conducted in a test bench for drip hose at Laboratory Test Equipment for Irrigation - Department of Agricultural Engineering, Sao Paulo State University. The experiment was a 2 x 2 x 7 factorial design, with two Fe doses, two drip brands, and seven operational times with three replicates, totalizing 84 experimental plots. The variance analysis was performed by F test. Average emitter discharges were compared by Student t test at 5% probability. The results showed no significant difference in iron doses. However, the results indicated significant differences in drip versus operational time and the Christiansen uniformity coefficient (CUC). KEYWORDS: Uniformity coefficient of Christiansen(CUC), distribution uniformity (DU), emitter clogging.

Download Full-text

DESEMPENHO DE GOTEJADORES OPERANDO COM ÁGUA RESIDUÁRIA DE LATICÍNIOS EM ESCALA LABORATORIAL

Irriga ◽

10.15809/irriga.2016v21n1p140-155 ◽

2018 ◽

Vol 21 (1) ◽

pp. 140 ◽

Cited By ~ 2

Author(s):

Blake Charles Diniz Marques ◽

Vanessa Tainara da Cunha ◽

Valéria Tatiany da Cunha ◽

Ketson Bruno da Silva ◽

Rafael Oliveira Batista

Keyword(s):

Flow Rate ◽

Operating Time ◽

Dairy Wastewater ◽

Semiarid Region ◽

Uniformity Coefficient ◽

Microbiological Characteristics ◽

Wastewater Quality ◽

Distribution Uniformity ◽

Experimental Trials ◽

Iron Manganese

DESEMPENHO DE GOTEJADORES OPERANDO COM ÁGUA RESIDUÁRIA DE LATICÍNIOS EM ESCALA LABORATORIAL BLAKE CHARLES DINIZ MARQUES1; VANESSA TAINARA DA CUNHA1; VALÉRIA TATIANY DA CUNHA1; KETSON BRUNO DA SILVA1; RAFAEL OLIVEIRA BATISTA1 1 Departamento de Ciências Ambientais e Tecnológicas, UFERSA câmpus Mossoró-RN, Avenida Francisco Mota, no 572, Bairro Costa e Silva, CEP: 59.625-900 - Mossoró, RN, Brasil. E-mail: [email protected], [email protected], [email protected], [email protected], [email protected] 1 RESUMO A degradação ambiental e a escassez hídrica no semiárido são fatores que contribuem para utilização de águas residuárias na agricultura. A irrigação localizada torna-se o método mais adequado para este fim, devido ao uso eficiente da água. Neste contexto, o presente trabalho teve por objetivo monitorar a vazão e o coeficiente de uniformidade de distribuição (CUD) em unidades de irrigação, dotadas de cinco tipos de gotejadores (G1 = 1,6 L h-1, G2 = 2,0 L h-1, G3 = 2,0 L h-1, G4 = 1,70 L h-1 e G5 = 2,0 L h-1) aplicando água residuária de laticínios; e avaliar as características físico-químicas e microbiológica do efluente, quanto ao risco de obstrução. O monitoramento da qualidade da água residuária de laticínios foi realizado a cada 40 h, simultaneamente com a determinação da vazão dos gotejadores e do CUD, totalizando seis amostragens, até o encerramento dos ensaios experimentais, no tempo de operação de 200 h. O gotejador G2 foi o mais suscetível ao entupimento com efluente de laticínios tratado, enquanto o gotejador G5 foi o mais resistente ao entupimento. As características sólidos suspensos, sólidos dissolvidos, ferro, manganês, cálcio e a presença de microrganismos, interferiram, diretamente nos valores da vazão dos gotejadores e do CUD das unidades de irrigação que operaram com efluente de laticínios tratado. Palavras-chave: emissores, efluente, obstrução. MARQUES, B. C. D.; CUNHA, V. T.; CUNHA, V. T.; SILVA, K. B.; BATISTA, R. O.DRIPPERS PERFORMANCE OPERATING WITH DAIRY WASTEWATER IN LABORATORY SCALE 2 ABSTRACT Environmental degradation and water scarcity in the semiarid region are factors that contribute to the use of wastewater in agriculture. This study aimed to monitor the flow rate and the distribution uniformity coefficient (CUD) of irrigation units in five types of drippers (G1 = 1.6 L h-1, G2 = 2.0 L h-1, G3 = 2.0 L h-1, G4 = 1.70 L h-1 and G5 = 2.0 L h-1) applying wastewater dairy, as well as the physicochemical and microbiological characteristics of the effluent, that represented risk of obstruction. Monitoring of the dairy wastewater quality was performed every 40 h, simultaneously with the determination of the emitter flow rate and CUD, totaling six samples until the end of the experimental trials, in 200 h of operating time. The dripper G2 was the most susceptible to clogging with treated dairy wastewater, while the drip G5 was the most resistant to clogging. Solid suspended, dissolved solids, iron, manganese, calcium and presence of microorganisms interfered directly on flow rate and CUD of irrigation units that operated with treated dairy effluent. Keywords: emitters, effluent, clogging.

Download Full-text

Emerald zoyzia grass development regarding photosynthetically active radiation in different slopes

Engenharia Agrícola ◽

10.1590/s0100-69162012000300009 ◽

2012 ◽

Vol 32 (3) ◽

pp. 501-509 ◽

Cited By ~ 2

Author(s):

Ruchele M. Coan ◽

José E. P. Turco ◽

Kathia F. L. Pivetta ◽

Madson N. da Costa ◽

Caroline de M. D'A. Mateus

Keyword(s):

Photosynthetically Active Radiation ◽

Dry Matter ◽

Global Radiation ◽

Global Solar Radiation ◽

State University ◽

Active Radiation ◽

Agricultural Engineering ◽

Paulo State ◽

Tukey Test ◽

Engineering Department

With this study, the objective was to estimate the photosynthetically active radiation (PAR) and to correlate it with the dry matter (MMSPA) of the emerald zoysia (Zoysia japonica Steud.) on surfaces with different expositions and slopes. The research was conducted at the Experimental Watershed of the Agricultural Engineering Department, School of Agriculture and Veterinary Sciences of São Paulo State University (FCAV/UNESP), Brazil, where the surfaces (H, 10 N, 30 N, 50 N, 10 S, 30 S, 50 S, 10 L, 30 L, 50 L, 10 O, 30 O and 50 O) were used. To obtain the global solar radiation, it was installed an automated weather station where the PAR (dependent variable) was obtained by the equation y = a + bx, and the global radiation was independent. To compare means of MMSPA, it was used the Tukey test at 5% probability, and to assess the relation PAR/MMSPA, the simple linear correlation coefficient. The result showed that the accumulation of these effects in the PAR increases with North exposure and decreases with the South, and exposure to 50N is most suitable for slopes, not having correlation between the PAR and the MMSPA for the surfaces evaluated for the study period.

Download Full-text

ANÁLISE DOS COEFICIENTES DE UNIFORMIDADE DE APLICAÇÃO DE MICROASPERSORES

Irriga ◽

10.15809/irriga.2016v1n01p89-98 ◽

2018 ◽

Vol 1 (01) ◽

pp. 89

Author(s):

Luiz Fabiano Palaretti ◽

José Renato Zanini ◽

Diego Augusto Vechiato ◽

Alexandre Barcellos Dalri ◽

Rogério Teixeira de Farias

Keyword(s):

Constant Pressure ◽

Test Time ◽

State University ◽

University Campus ◽

Water Application ◽

Uniformity Coefficient ◽

Operating Range ◽

Coefficient Variation ◽

Total Absence ◽

Distribution Uniformity

ANÁLISE DOS COEFICIENTES DE UNIFORMIDADE DE APLICAÇÃO DE MICROASPERSORES LUIZ FABIANO PALARETTI1; JOSÉ RENATO ZANINI1; DIEGO AUGUSTO VECCHIATO1; ALEXANDRE BARCELLOS DALRI1 E ROGÉRIO TEIXEIRA DE FARIA1 1Departamento de Engenharia Rural, FCAV/Unesp, Via de acesso Prof. Paulo Donato Castellane, s/n, 14884-900, Jaboticabal, São Paulo, Brasil, email: [email protected], [email protected], [email protected], [email protected], [email protected] 1 RESUMO O objetivo deste trabalho foi analisar a uniformidade de aplicação de água e o padrão de molhamento dos microaspersores DAN 2001 e DAN 2002, conforme a ABNT (2004). O ensaio foi conduzido na Universidade Estadual Paulista, Jaboticabal, SP. O tempo de teste foi de 1 hora sob pressão constante de 250 kPa e total ausência de vento, com 3 repetições. Foram determinados os coeficientes de uniformidade de distribuição (CUD) e de Christiansen (CUC) e o padrão de molhamento dos microaspersores. Os valores médios de CUC para ambos os microaspersores foi classificado como “bom” alcançando 80,22% e 83,21% para o DAN 2001 e DAN 2002, respectivamente. Os valores médios de CUD foram 71,35% (DAN 2001) e 75,39% (DAN 2002), ambos classificados como “bom”. Os valores médios de CUC e CUD não diferiram entre si pelo teste de Tukey (p³0.05), apresentando valores de coeficiente de variação de 6,52 e 10,77, respectivamente. O padrão de molhamento apresentou maiores intensidades de aplicação (4,0 – 5,0 mm h-1) nos primeiros 0,25 m de distância do microaspersor, decrescendo com o aumento da distância, com intensidades de 2,0 a 3,0 mm h-1 a 2,25 m. Palavras-chave: sobreposição, emissores, raio de alcance PALARETTI, L. F.; ZANINI, J. R.; VECCHIATO, D. A.; DALRI, A. B.; FARIA, R. T. ANALYSIS OF APPLICATION UNIFORMITY COEFFICIENT OF THE MICROSPRINKLERS 2 ABSTRACT The aim of this study was to analyze water application uniformity and wetness pattern of microsprinklers DAN 2001 and DAN 2002 according to ABNT NBR (2004). The test was conducted in Paulista State University, campus of Jaboticabal, SP. The test time was 1 hour under a constant pressure of 250 kPa and total absence of wind, with 3 replications. The distribution uniformity coefficient (CUD); uniformity (CUC) and wetness pattern of microsprinklers were determinated. The average values of CUC for both microsprinklers were described as "good", reaching 80.22 and 83.21% for the DAN 2001 and DAN 2002, respectively. The average values of CUD were 71.35% (DAN 2001) and 75.39% (DAN 2002), both described as "good". The average values of CUC and CUD did not differ in Tukey tests (p³0.05), with coefficient variation values of 6.52 and 10.77, respectively. The wetness pattern showed higher intensities application (4.0 to 5.0 mm h-1) for the first 0.25 m distance from the microsprinklers, decreasing with increasing distance, with intensities from 2.0 to 3.0 mm h-1 at 2.25 m. Keywords: overlapping, emitters, operating range

Download Full-text

Water distribution from medium-size sprinkler in solid set sprinkler systems

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v20n3p195-201 ◽

2016 ◽

Vol 20 (3) ◽

pp. 195-201

Author(s):

Giuliani do Prado

Keyword(s):

Clustering Analysis ◽

Water Distribution ◽

Test Bench ◽

Digital Simulation ◽

Medium Size ◽

State University ◽

Geometric Shapes ◽

Sprinkler Systems ◽

Visual Basic For Applications ◽

Distribution Uniformity

ABSTRACT The study aimed to evaluate the water distribution from a medium-size sprinkler working in solid set sprinkler systems. Water distribution radial curves from the sprinkler operating under four nozzle diameter combinations (4.0 x 4.6; 5.0 x 4.6; 6.2 x 4.6 and; 7.1 x 4.6 mm) and four working pressures (196; 245; 294 and 343 kPa) were evaluated on the sprinkler test bench of the State University of Maringá, in Cidade Gaúcha, Paraná, Brazil. The sixteen water distribution curves were normalized and subjected to clustering analysis (K-Means algorithm), identifying the occurrence of normalized distribution curves with three different geometric shapes. A computer algorithm, in Visual Basic for Applications in Excel spreadsheet, was developed to simulate the water application uniformity (Christiansen's Coefficient - CU) from the sprinklers working with rectangular and triangular layouts in solid set sprinkler systems. For the three geometric shapes of the normalized water distribution curves, digital simulation results of water distribution uniformity for the sprinklers on mainline and lateral line spaced between 10 to 100% of wetted diameter indicated that sprinkler spacings around 50% of the wetted diameter provide acceptable CU values.

Download Full-text

Influence of environmental enrichment on the rehabilitation of white-eyed parakeet (Psittacara leucophthalmus)

Research Society and Development ◽

10.33448/rsd-v10i17.24284 ◽

2021 ◽

Vol 10 (17) ◽

pp. e74101724284

Author(s):

Gabriela Cortellini Ferreira Ramos ◽

Sérgio Diniz Garcia ◽

Matheus Janeck Araújo ◽

Márcia Marinho

Keyword(s):

Environmental Enrichment ◽

Wild Animal ◽

State University ◽

Friedman Test ◽

Paulo State ◽

Behavioral Observations ◽

Focal Animal ◽

Significant Difference ◽

The Impact ◽

Test For Normality

The use of sensory, physical, cognitive, and alimentary stimuli are varieties of environmental enrichment used to minimize stress caused by the monotonous captive environment. The objective of this study was to verify the impact of environmental enrichment in escape-related behavioral stereotypies. Thirty birds of the species Psittacara leucophthalmus were observed from March to September 2016, received at the Wild Animal Recovery and Screening Center of the São Paulo State University (UNESP), School of the Veterinary Medicine campus Araçatuba. The methodology used for the behavioral observations was the focal animal with observation through filming were made by 18 hours per bird for three consecutive days, while physical, cognitive, food, and sensory enrichment methods were applied, and the assessment was carried out before, during, and after the application of environmental enrichment. The data were analyzed by the Shapiro-Wilk test for normality and by the Friedman test, which showed no significant difference (p >0.05) before, during, and after environmental enrichment. Despite the statistical analyses, the perception of the bird’s welfare improving was visually clear.

Download Full-text

DESEMPENHO DE EMISSORES APLICANDO RESÍDUOS FINOS DE ROCHAS ORNAMENTAIS

Irriga ◽

10.15809/irriga.2017v1n1p118-126 ◽

2018 ◽

Vol 1 (1) ◽

pp. 118-126

Author(s):

Carlos Magno Mulinario Poloni ◽

Gustavo Haddad Souza Vieira ◽

José Julio Garcia De Freitas ◽

Jéssica Broseguini Loss ◽

Guilherme Peterle ◽

...

Keyword(s):

Drip Irrigation ◽

Test Bench ◽

Drip Line ◽

Small Particles ◽

Uniformity Coefficient ◽

Distribution Uniformity ◽

Set Up ◽

Irrigation Quality ◽

Continuous Use ◽

E Mail

DESEMPENHO DE EMISSORES APLICANDO RESÍDUOS FINOS DE ROCHAS ORNAMENTAIS CARLOS MAGNO MULINARIO POLONI1; GUSTAVO HADDAD SOUZA VIEIRA2; JOSÉ JÚLIO GARCIA DE FREITAS3; JÉSSICA BROSEGHINI LOSS4; GUILHERME PETERLE5 E PAOLA ALFONSA VIEIRA LO MONACO6 1Estudante de Agronomia, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected]. Doutor, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail:[email protected]. Mestre, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected] em Produção Vegetal, CCA-UFES, Alegre-ES. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected] de Agronomia, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected]ª. Doutora, IFES campus Santa Teresa. Rod ES 080, km 93, São João de Petrópolis, Santa Teresa – ES. CEP 29.660-000. e-mail: [email protected]. 1 RESUMO Objetivou-se, com a realização deste trabalho, avaliar o desempenho de diferentes emissores de irrigação localizada, aplicando resíduos finos do beneficiamento de rochas ornamentais. O experimento foi realizado no Ifes Campus Santa Teresa e os tratamentos consistiram em cinco diferentes emissores, sendo eles: Tubo gotejador D5000 Flow Regulated Drip Line (G1); Tubo gotejador NaanDanJain (G2); Botão gotejador Irritec (G3); Microspray Amanco roxo (G4) e Microspray Amanco vermelho (G5). Montou-se uma bancada para os testes de vazões, composta de cinco calhas com 12 metros de comprimento cada, para coleta e recirculação da solução utilizada. Os emissores, espaçados a 0,40 m, foram avaliados em 0, 100, 200, 300 e 400 horas de uso contínuo, com quatro repetições. Foi caracterizada a solubilidade e a granulometria do resíduo. Avaliou-se a vazão (Q); o coeficiente de uniformidade de distribuição (CUD); o coeficiente variação de vazão (CVq) e a vazão relativa dos emissores (Qr). Ao final, os emissores G1 e G2 apresentaram os melhores desempenhos, seguidos pelos emissores G3, G5 e G4. Palavras-chave: Entupimento, irrigação localizada, qualidade, uniformidade. POLONI, C. M. M.; VIEIRA, G. H. S.; FREITAS, J. J. G.; LOSS, J. B.; PETERLE, G.; LO MONACO, P.A.V.EMITTERS PERFORMANCE IN APPLYING SMALL WASTES PARTICLES FROM ORNAMENTAL ROCKS 2 ABSTRACT This work aims to evaluate the performance of different drip irrigation emitters, applying small particles from ornamental rocks processing. The experiment was carried out at the Ifes Campus of Santa Teresa using five different emitters: D5000 Flow Regulated Drip Line (G1); NaanDanJain drip tube (G2); Irritec drip button (G3); Microspray Amanco purple (G4) and Microspray Amanco red (G5). A test bench was set up for the flow tests, composed of five gutters each one of them 12 meters in length, for collection and recirculation of the solution used. The emitters, distributed at every 0.40 m within the gutter, were evaluated for 0, 100, 200, 300 and 400 hours of continuous use, with four repetitions. The solubility and particle size of the waste were characterized. The flow rate (Q); the distribution uniformity coefficient (CUD); the coefficient of flow variation (CVq); and the relative flow of the emitters (Qr) were evaluated. In the end, the emitters G1 and G2 presented the best performances, followed by emitters G3, G5 and G4. Keywords: Clogging, drip irrigation, quality, uniformity.

Download Full-text

Retropubic, laparoscopic, and robot-assisted radical prostatectomy: a multi-institutional comparative study

African Journal of Urology ◽

10.1186/s12301-020-00083-0 ◽

2020 ◽

Vol 26 (1) ◽

Author(s):

Amr A. Faddan ◽

Mahmoud M. Shalaby ◽

Mohamed Gadelmoula ◽

Younis Alshamsi ◽

Daniar K. Osmonov ◽

...

Keyword(s):

Radical Prostatectomy ◽

Complication Rate ◽

Perioperative Complications ◽

Statistical Significance ◽

Operating Time ◽

Perioperative Outcomes ◽

Academic Institutions ◽

Robot Assisted ◽

Surgical Specimen ◽

Significant Difference

Abstract Background The standard surgical treatment of localized prostate cancer (PCa) has been rapidly changed along the last two decades from open to laparoscopic and finally robot-assisted techniques. Herein, we compare the three procedures for radical prostatectomy (RP), namely radical retropubic (RRP), laparoscopic (LRP), and robot-assisted laparoscopic (RALRP) regarding the perioperative clinical outcome and complication rate in four academic institutions. Methods A total of 394 patients underwent RP between January 2016 and December 2018 in four academic institutions; their records were reviewed. We recorded the patient age, BMI, PSA level, Gleason score and TNM stage, type of surgery, the pathological data from the surgical specimen, the perioperative complications, unplanned reoperating, and readmission rates within 3 months postoperatively. Statistical significance was set at (P < 0.05). All reported P values are two-sided. Results A total of 123 patients underwent RALRP, 220 patients underwent RRP, and 51 underwent LRP. There was no statistically significant difference between the three groups regarding age, BMI, prostatic volume, and preoperative PSA. However, there were statistically significant differences between them regarding the operating time (P < .0001), catheterization period (P < .001), hospital stay (P < .0001), and overall complications rate (P = .023). Conclusions The minimally invasive procedures (RALRP and LRP) are followed by a significantly lower complication rate. However, the patients’ factors and surgical experience likely impact perioperative outcomes and complications.

Download Full-text

An eye-tracking based robotic scrub nurse: proof of concept

Surgical Endoscopy ◽

10.1007/s00464-021-08569-w ◽

2021 ◽

Author(s):

Ahmed Ezzat ◽

Alexandros Kogkas ◽

Josephine Holt ◽

Rudrik Thakkar ◽

Ara Darzi ◽

...

Keyword(s):

Eye Tracking ◽

Technology Acceptance ◽

Operating Time ◽

Human Robot Interaction ◽

Motion Sensors ◽

Scrub Nurse ◽

Task Load ◽

Significant Difference ◽

Nasa Tlx ◽

Robotic Devices

Abstract Background Within surgery, assistive robotic devices (ARD) have reported improved patient outcomes. ARD can offer the surgical team a “third hand” to perform wider tasks and more degrees of motion in comparison with conventional laparoscopy. We test an eye-tracking based robotic scrub nurse (RSN) in a simulated operating room based on a novel real-time framework for theatre-wide 3D gaze localization in a mobile fashion. Methods Surgeons performed segmental resection of pig colon and handsewn end-to-end anastomosis while wearing eye-tracking glasses (ETG) assisted by distributed RGB-D motion sensors. To select instruments, surgeons (ST) fixed their gaze on a screen, initiating the RSN to pick up and transfer the item. Comparison was made between the task with the assistance of a human scrub nurse (HSNt) versus the task with the assistance of robotic and human scrub nurse (R&HSNt). Task load (NASA-TLX), technology acceptance (Van der Laan’s), metric data on performance and team communication were measured. Results Overall, 10 ST participated. NASA-TLX feedback for ST on HSNt vs R&HSNt usage revealed no significant difference in mental, physical or temporal demands and no change in task performance. ST reported significantly higher frustration score with R&HSNt. Van der Laan’s scores showed positive usefulness and satisfaction scores in using the RSN. No significant difference in operating time was observed. Conclusions We report initial findings of our eye-tracking based RSN. This enables mobile, unrestricted hands-free human–robot interaction intra-operatively. Importantly, this platform is deemed non-inferior to HSNt and accepted by ST and HSN test users.

Download Full-text

Pancreaticogastrostomy after Pancreaticoduodenectomy Using Twin Square Wrapping with Duct-to-Mucosa Anastomosis

European Surgical Research ◽

10.1159/000433425 ◽

2015 ◽

Vol 55 (1-2) ◽

pp. 109-118 ◽

Cited By ~ 6

Author(s):

Kosei Maemura ◽

Yuko Mataki ◽

Hiroshi Kurahara ◽

Shinichiro Mori ◽

Naotomo Higo ◽

...

Keyword(s):

Operating Time ◽

Conventional Group ◽

C Reactive Protein ◽

Pancreatic Anastomosis ◽

Pancreatic Stump ◽

Reactive Protein ◽

Significant Difference ◽

Pancreatic Fistulas ◽

Hospital Stays ◽

Blood Loss Volume

Background/Purpose: This study aimed to evaluate the feasibility and safety of a novel pancreaticogastrostomy technique for diminishing pancreatic fistulas after pancreaticoduodenectomy using gastric wrapping of the pancreatic stump with a twin square-shaped horizontal mattress and a suture fixing the main pancreatic duct to the gastric mucosa anastomosis [twin square wrapping (TSW) method]. Methods: Fifty-three patients undergoing pancreaticogastrostomy after pancreaticoduodenectomy were included in the study and chronologically divided into a conventional group (n = 32) and a TSW group (n = 21). The perioperative factors and the postoperative outcomes were retrospectively analyzed. Results: The operating time for the pancreatic anastomosis, the total operating time, and the blood loss volume in the TSW group were lower than in the conventional group, but without a statistically significant difference. The TSW group had a significantly lower postoperative white blood cell count and C-reactive protein level, with a reduced intra-abdominal fluid accumulation as assessed by computed tomography on postoperative day 7, had a lower incidence of postoperative complications and pancreatic fistulas, and achieved a shorter duration of drain placement and shorter postoperative hospital stays as compared to the conventional group. Conclusions: The TSW technique should be considered for reducing pancreatic fistulas by diminishing the postoperative inflammatory response and improving patient outcomes without increasing the operating time.

Download Full-text

Issues And Concerns Of Teachers In Mindanao State University-Sulu Towards Modular Distance Learning Approach: An Analysis

Indonesian Community Empowerment Journal ◽

10.37275/icejournal.v1i2.12 ◽

2021 ◽

Vol 1 (2) ◽

pp. 51-69

Author(s):

Michelle Y. Alvarez

Keyword(s):

Distance Learning ◽

Media Literacy ◽

Teaching Strategy ◽

Research Question ◽

Literacy Skills ◽

Survey Method ◽

Learning Approach ◽

State University ◽

Teacher Guidance ◽

Significant Difference

The purpose of this study is to determine the demographic profiles of the respondents which are the teachers in Mindanao State University–Sulu according to gender and college, to identify the issues encountered by the MSU-Sulu Teacher towards modular distance learning approach, to distinguish the concerns of the MSU-Sulu Teacher towards modular distance learning approach, to investigate the teaching preparations on the adaptation of modular distance learning approach, and to identify the significant difference of issues and concern of the MSU-Sulu Teacher towards modular distance learning approach when they are grouped according gender and college. Frequency and percentage distribution, weighted arithmetic mean and independent t-test and chi-square are the statistical tools used to answer the entire research question. The data gathered was computed using SPSS analyzed and interpreted with the aide of the statistician. Descriptive survey method was used as the research method. This study utilizes 40 teachers from different colleges/department. Convenience sampling was used to It is the recommended number of which it is the 30% from the total population of all the faculty of Mindanao State University-Sulu.; questionnaire is used by the researcher as a research instrument of the study. The findings of the study were: 1) There is no significant difference of issues and concern of the MSU-Sulu teacher towards modular distance learning approach when grouped according gender but in contrary; and 2) There is significant difference on the issues and concern among MSU-Sulu teacher towards modular distance learning approach when grouped according colleges. The issues encountered towards modular distance learning approach were communication failure like that of instructions or confusion of students on the modules, limited teacher guidance, student’s in discourteous approach to teachers, complaints on not understanding the module, and all of which results to misbehavior on students and failure to pass worksheet on time. In addition, the concerns of the MSU-Sulu teacher towards modular distance learning approach were; first, hidden expenses on modules; second, teacher’s lack of media literacy; third, poor internet connection which intercepts communication between teacher and students; fourth, time constraint among teachers due to overload paperwork; fifth, equipment problem and complexity of the discussion as well as measurement of student’s performance; sixth, managing student’s responses from time to time; seventh, teacher’s unavailability and lastly, difficulties of studying among slow learners. Moreover, on teaching preparations on the adaptation of modular distance learning approach, the issues were cater and set time for student’s inquiries and be flexible to allow extension in terms of passing worksheets as well as allow parents, relative or even friends to pass worksheets in their behalf to lessen transportation expenses. Teachers must appreciate/ recognize his/her students to boost their confidence and avoid favouritism while being considerate to students who are attention seeker or may have ADHD. Correspondingly, the concerns were. Teachers must encourage handwritten answers to lessen plagiarism, on the absence of teacher, the parents and elders must guide the students in their learning at home. Teacher and parent’s guidance must go hand and hand in today’s learning. Teachers must likewise be flexible in finding solutions on printing shortage. And lastly, alternative teaching strategies like modular learning should be hone to aid lack of media literacy of both teacher and students In view of the findings and analysis, the following are recommended: Teachers must be flexible with the present kind of teaching strategy at all cost and at all aspects, Set guidelines as to establish proper communication among students and teachers, learning materials must be affordable as well as easy to understand content, teachers must develop their media literacy skills and encourage teachers to be available to their students on allotted time and cater all their inquiries with patience at all times. Furthermore, the following are the recommended research agenda: Teacher’s training on media literacy and module development programs to allow teamwork in the making process.

Download Full-text