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Water requirement and crop coefficient of sugarcane cultivated in Nicaragua
Pereira Rafael Menezes,Schwerz Felipe,Diotto Adriano Valentim,Sandoval Marlon Daniel Vargas,Aguirre Milton Javier Alvarado 한국작물학회 2024 Journal of crop science and biotechnology Vol.27 No.1
Sugarcane is one of the main agro-industrial crops in Nicaragua and Central America and one of the crops with the highest evapotranspiration rates. The lack of information related to sugarcane evapotranspiration as well as the crop coefficient (Kc) has limited productivity and water resources in Nicaragua. The knowledge of crop coefficient and water requirement for sugarcane, developed locally, will guide companies, farmers, and technicians for better irrigation management. In this context, this study aimed to determine the crop evapotranspiration and Kc for sugarcane in Nicaragua and to compare the results with those suggested by FAO. The study was performed in a field experiment at the Casur Sugarcane mill in Nicaragua, where the sugarcane was cultivated in a vertisol with a furrow irrigation method. The reference evapotranspiration was estimated using the Penman–Monteith FAO approach, and the crop evapotranspiration (ETc) was determined using the field water balance method. During the crop season, the total ETc was 1346.6 mm, resulting in a 0.90 average of Kc. The determined Kc for initial, tillering, grand growth and maturity was 0.37, 0.91, 1.11, and 0.71, respectively. The Kc proposed by FAO showed values 11.11% higher than that obtained in this study. These results highlight the importance of determining the Kc values at a local scale, parameters that guide irrigation management to use the water resources efficiently.
Common positioning errors in panoramic radiography: A review
Rafael Henrique Nunes Rondon,Yamba Carla Lara Pereira,Glauce Crivelaro do Nascimento 대한영상치의학회 2014 Imaging Science in Dentistry Vol.44 No.1
Professionals performing radiographic examinations are responsible for maintaining optimal image quality for accurate diagnoses. These professionals must competently execute techniques such as film manipulation and processing to minimize patient exposure to radiation. Improper performance by the professional and/or patient may result in a radiographic image of unsatisfactory quality that can also lead to a misdiagnosis and the development of an inadequate treatment plan. Currently, the most commonly performed extraoral examination is panoramic radiography. The invention of panoramic radiography has resulted in improvements in image quality with decreased exposure to radiation and at a low cost. However, this technique requires careful, accurate positioning of the patient’s teeth and surrounding maxillofacial bone structure within the focal trough. Therefore, we reviewed the literature for the most common types of positioning errors in panoramic radiography to suggest the correct techniques. We would also discuss how to determine if the most common positioning errors occurred in panoramic radiography, such as in the positioning of the patient’s head, tongue, chin, or body.
The value of PET/CT for cytoreductive surgery selection in recurrent ovarian carcinoma
Rafael Leite Nunes,Flávio Rodrigues Teixeira,Thiago Pereira Diniz,Carlos Chaves Faloppa,Henrique Mantoan,Alexandre Andre Balieiro Anastacio da Costa,Glauco Baiocchi 대한부인종양학회 2023 Journal of Gynecologic Oncology Vol.34 No.3
Objective: To evaluate the value of positron emission tomography/computed tomography (PET/CT) in predicting no residual disease (NRD) after secondary cytoreductive surgery (SCS) compared with MSK criteria, the iMODEL, and the AGO score. Methods: We analyzed 112 patients with platinum-sensitive ovarian carcinoma who underwent SCS. We excluded patients for whom PET/CT was not performed, those without sufficient data, and who received chemotherapy before SCS. Ultimately, 69 patients were included. Results: Variables that correlated with NRD were peritoneal carcinomatosis index (odds ratio [OR]=0.91; 95% confidence interval [CI]=0.83–0.99; p=0.044), European Cooperative Oncology Group Performance Status (ECOG) 0 (OR=8.0; 95% CI=1.34–47.5; p=0.022), and ≤2 lesions by PET/CT (OR=4.36; 95% CI=1.07–17.7; p=0.039). Of the patients with ≤2 lesions by PET/CT, 48 (92.3%) underwent complete SCS. The sensitivity, positive predictive value, negative predictive value, and accuracy of PET/CT for NRD were 85.7%, 92.3%, 33.3%, and 81.2%, respectively. NRD was achieved after fulfilling the MSK criteria, iMODEL and AGO Score in 89.1%, 88.1% and 85.9%, respectively. The accuracy of the MSK criteria, iMODEL, and AGO score in predicting NRD was 87%, 83.3%, and 77.3%, respectively. The PET/CT findings agreed well with the AGO score and iMODEL. The addition of PET/CT to these models increased the NRD rates (92.2%, 91.8%, and 89.4% for MSK+PET/CT, iMODEL+PET/CT, and AGO+PET/CT, respectively), but lowered their accuracy. Conclusion: We observed NRD in 92.3% of patients with ≤2 lesions by PET/CT, with an accuracy of 81.2%. PET/CT did not increase the accuracy of the MSK criteria, iMODEL, or AGO score models.
Common positioning errors in panoramic radiography: A review
Rondon, Rafael Henrique Nunes,Pereira, Yamba Carla Lara,do Nascimento, Glauce Crivelaro Korean Academy of Oral and Maxillofacial Radiology 2014 Imaging Science in Dentistry Vol.44 No.1
Professionals performing radiographic examinations are responsible for maintaining optimal image quality for accurate diagnoses. These professionals must competently execute techniques such as film manipulation and processing to minimize patient exposure to radiation. Improper performance by the professional and/or patient may result in a radiographic image of unsatisfactory quality that can also lead to a misdiagnosis and the development of an inadequate treatment plan. Currently, the most commonly performed extraoral examination is panoramic radiography. The invention of panoramic radiography has resulted in improvements in image quality with decreased exposure to radiation and at a low cost. However, this technique requires careful, accurate positioning of the patient's teeth and surrounding maxillofacial bone structure within the focal trough. Therefore, we reviewed the literature for the most common types of positioning errors in panoramic radiography to suggest the correct techniques. We would also discuss how to determine if the most common positioning errors occurred in panoramic radiography, such as in the positioning of the patient's head, tongue, chin, or body.
Lincon Rafael da Silva,Leonardo Luís de Barros Rodrigues,Amanda Silva Botelho,Bruna Sartório de Castro,Paulo Henrique Pereira Costa Muniz,Maria Carolina Blassioli Moraes,Sueli Corrêa Marques de Mello 한국식물병리학회 2023 Plant Pathology Journal Vol.39 No.1
Common bean (Phaseolus vulgaris L.) is one of the most important crops in human food production. The occurrence of diseases, such as white mold, caused by Sclerotinia sclerotiorum can limit the production of this legume. The use of Trichoderma has become an important strategy in the suppression of this disease. The aim of the present study was to evaluate the effect of volatile organic compounds (VOCs) emitted by Trichoderma azevedoi CEN1241 in five different growth periods on the severity of white mold in common bean. The in vitro assays were carried out in double-plate and split-plate, and the in vivo assays, through the exposure of the mycelia of S. sclerotiorum to the VOCs of T. azevedoi CEN1241 and subsequent inoculation in bean plants. Chemical analysis by gas chromatography coupled to mass spectrometry detected 37 VOCs produced by T. azevedoi CEN1241, covering six major chemical classes. The profile of VOCs produced by T. azevedoi CEN1241 varied according to colony age and was shown to be related to the ability of the biocontrol agent to suppress S. sclerotiorum. T. azevedoi CEN1241 VOCs reduced the size of S. sclerotiorum lesions on bean fragments in vitro and reduced disease severity in a greenhouse. This study demonstrated in a more applied way that the mechanism of antibiosis through the production of volatile compounds exerted by Trichoderma can complement other mechanisms, such as parasitism and competition, thus contributing to a better efficiency in the control of white mold in bean plants.
( Henrique Römer Schulz ),( Andrey Pereira Acosta ),( Kelvin Techera Barbosa ),( Mario Antonio Pinto Da Silva Junior ),( Ezequiel Gallio ),( Rafael De Ávila Delucis ),( Darci Alberto Gatto ) 한국목재공학회 2021 목재공학 Vol.49 No.3
This article aimed at thermally treating and charactering the Eucalyptus grandis wood under three different temperatures. For this, pristine eucalypt samples were treated by heating in a laboratory oven at 160 °C, 200 °C and 240 °C, always for 2 h. Treatment parameters (based on weight percentage loss and specific gravity), as well as mechanical (by hardness tests), chemical (by infrared spectroscopy), thermal (by thermogravimetry), and colorimetric (by CIELab method) features were evaluated. Compared to the pristine ones, the treated woods have there was a drop in apparent density at 12 % and consecutively greater thermal stability which is probably related to a previous partial degradation of some major amorphous components (namely cellulose, hemicellulose and lignin), as suggested by the treatment parameters and infrared spectra. Besides of that, the higher the temperature treatment, the higher the loss in surface hardness and the higher the colour darkening.
Lídia Da Silva Pereira,Thaynã Amanda Melo Souza,Rafael Walter,Cláudia Pombo Sudré,Layrana De Azevedo Dos Santos,Gabriel Bonan Taveira,Álan Chrisley Maracahipes,Virginia Silva Carvalho,Celso Shiniti Na 한국원예학회 2021 Horticulture, Environment, and Biotechnology Vol.62 No.3
Diseases caused by phytopathogenic microorganisms are diffi cult to control and can aff ect plants at diff erent stages of theirdevelopment. Several resistance genes and antimicrobial peptides (AMPs) have been identifi ed and related to the resistanceprocess of Capsicum . In recent years, studies have shown that peppers, especially the accession UENF1381, present resistanceagainst phytopathogenic microorganisms. This work aimed identify and characterize AMPs of the leaf and root from Capsicumannuum L. UENF1381 and to analyze the inhibitory activity of the AMPs on diff erent enzyme families and valuated theinhibitory activity on Colletotrichum scovillei. Initially, self-fertilized pepper seeds were cultured for 45 days in glass fl askscontaining ½-MS medium. Then, leaves were inoculated with inoculum of Xanthomonas euvesicatoria (10 8 CFU mL −1 )or water (control). Leaf and root samples were collected at 12, 24 and 48 h after inoculation to extraction. The activity ofextracts on diff erent enzyme families was analyzed by incubating the enzymes (trypsin, α-amylase and β-1,3-glucanase)with 30 μg mL −1 of the obtained extracts. The eff ect of extracts on fungi was also tested. It was identifi ed that protein of leafand root extracts from C. annuum L. UENF1381 presented a majority of bands with a low molecular mass (6–14 kDa). Weobserved that all leaf and root extracts signifi cantly inhibited trypsin and α-amylase activity and able to signifi cantly inhibitC. scovillei growth. With this work we hope to contribute to the use of peptides as potential molecules in microbial controland in the development of new Capsicum cultivars resistant to microorganisms.
Pâmela Letícia dos Santos,Rafael Scaf de Molon,Thallita Pereira Queiroz,Roberta Okamoto,Ana Paula de Souza Faloni,Jéssica Lemos Gulinelli,Eloá Rodrigues Luvizuto,Idelmo Rangel Garcia Junior 대한치주과학회 2016 Journal of Periodontal & Implant Science Vol.46 No.3
Purpose: We sought to evaluate the effectiveness of bone substitutes in circumferential periimplant defects created in the rabbit tibia. Methods: Thirty rabbits received 45 implants in their left and right tibia. A circumferential bone defect (6.1 mm in diameter/4 mm depth) was created in each rabbit tibia using a trephine bur. A dental implant (4.1 mm × 8.5 mm) was installed after the creation of the defect, providing a 2-mm gap. The bone defect gaps between the implant and the bone were randomly filled according to the following groups: blood clot (CO), particulate Bio-Oss® (BI), and Bio-Oss® Collagen (BC). Ten animals were euthanized after periods of 15, 30, and 60 days. Biomechanical analysis by means of the removal torque of the implants, as well as histologic and immunohistochemical analyses for protein expression of osteocalcin (OC), Runx2, OPG, RANKL, and TRAP were evaluated. Results: For biomechanics, BC showed a better biological response (61.00±15.28 Ncm) than CO (31.60±14.38 Ncm) at 30 days. Immunohistochemical analysis showed significantly different OC expression in CO and BC at 15 days, and also between the CO and BI groups, and between the CO and BC groups at 60 days. After 15 days, Runx2 expression was significantly different in the BI group compared to the CO and BC groups. RANKL expression was significantly different in the BI and CO groups and between the BI and BC groups at 15 days, and also between the BI and CO groups at 60 days. OPG expression was significantly higher at 60 days postoperatively in the BI group than the CO group. Conclusions: Collectively, our data indicate that, compared to CO and BI, BC offered better bone healing, which was characterized by greater RUNX2, OC, and OPG immunolabeling, and required greater reversal torque for implant removal. Indeed, along with BI, BC presents promising biomechanical and biological properties supporting its possible use in osteoconductive grafts for filling peri-implant gaps.
dos Santos, Pamela Leticia,de Molon, Rafael Scaf,Queiroz, Thallita Pereira,Okamoto, Roberta,de Souza Faloni, Ana Paula,Gulinelli, Jessica Lemos,Luvizuto, Eloa Rodrigues,Garcia, Idelmo Rangel Junior Korean Academy of Periodontology 2016 Journal of Periodontal & Implant Science Vol.46 No.3
Purpose: We sought to evaluate the effectiveness of bone substitutes in circumferential periimplant defects created in the rabbit tibia. Methods: Thirty rabbits received 45 implants in their left and right tibia. A circumferential bone defect (6.1 mm in diameter/4 mm depth) was created in each rabbit tibia using a trephine bur. A dental implant ($4.1mm{\times}8.5mm$) was installed after the creation of the defect, providing a 2-mm gap. The bone defect gaps between the implant and the bone were randomly filled according to the following groups: blood clot (CO), particulate Bio-Oss$^{(R)}$ (BI), and Bio-Oss$^{(R)}$ Collagen (BC). Ten animals were euthanized after periods of 15, 30, and 60 days. Biomechanical analysis by means of the removal torque of the implants, as well as histologic and immunohistochemical analyses for protein expression of osteocalcin (OC), Runx2, OPG, RANKL, and TRAP were evaluated. Results: For biomechanics, BC showed a better biological response ($61.00{\pm}15.28Ncm$) than CO ($31.60{\pm}14.38Ncm$) at 30 days. Immunohistochemical analysis showed significantly different OC expression in CO and BC at 15 days, and also between the CO and BI groups, and between the CO and BC groups at 60 days. After 15 days, Runx2 expression was significantly different in the BI group compared to the CO and BC groups. RANKL expression was significantly different in the BI and CO groups and between the BI and BC groups at 15 days, and also between the BI and CO groups at 60 days. OPG expression was significantly higher at 60 days postoperatively in the BI group than the CO group. Conclusions: Collectively, our data indicate that, compared to CO and BI, BC offered better bone healing, which was characterized by greater RUNX2, OC, and OPG immunolabeling, and required greater reversal torque for implant removal. Indeed, along with BI, BC presents promising biomechanical and biological properties supporting its possible use in osteoconductive grafts for filling peri-implant gaps.