cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5861166.v1
title: Presence of Cells in Fresh-Frozen Allogeneic Bone Grafts from Different Tissue Banks

description: Bone replacement materials have been widely used to reconstruct atrophic jawbones. Based on previous reports demonstrating the presence of viable cells in bone blocks even after processing by musculoskeletal tissue banks for orthopedic use, the aim of this study was to evaluate the presence of cells in bone blocks from three Brazilian tissue banks for maxillary reconstructions. All samples were processed by the respective tissue banks, according to the guidelines of the Brazilian National Sanitary Surveillance Agency. Three samples were removed from each block for subsequent histological processing and stained using hematoxylin & eosin. Further evaluation included section staining by the Feulgen method and ultrastructural analysis using scanning electron microscopy (SEM). Light microscopy images from all bone samples showed presence of osteocyte-like cells in all groups and intense Feulgen staining, demonstrating presence of DNA in bone even after tissue processing. The ultrastructural analysis showed red blood cells in lacunae within the bone tissue. In conclusion, despite bone tissue processing by the musculoskeletal tissue banks, cells may be found within the bone used for allogeneic grafts.
DOI: 10.6084/m9.figshare.5861157
title: Giant Epignathus Teratoma Discovered at Birth: A Case Report and 7-Year Follow-Up

description: Abstract Teratomas are tumors composed by tissues derived from the three germ cell layers, and they are relatively uncommon in head and neck. The term epignathus has been applied to teratomas from the oropharynx. This paper reports the case of a giant epignathus teratoma discovered at birth, which was successfully managed and followed up for 7 years. A newborn boy presented a polypoid tumor mass exteriorizing through the mouth over a length of 9 cm, with some surface areas resembling skin and others exhibiting hair. Computed tomography showed that the mass arose deep from the left hemiface. Alpha-fetoprotein (AFP) levels were high (316,000 ng/mL). Surgery was performed and microscopic analysis confirmed the diagnosis of mature teratoma. Because of residual tumor and high AFP levels, the patient was submitted to chemotherapy, resulting in complete regression of the lesion and normalization of AFP levels. Surgical repair of a cleft palate was performed at 5 years of age. At 7 years of age, the patient was in good general health and showed no clinical signs of recurrence. Although epignathus is a rare condition, it should be diagnosed in the fetus as early as possible. Prenatal care provides unquestionable benefits, providing the early diagnosis of anomalies that can jeopardize the life of the fetus and contributing to the indication of cases that require treatment before birth.
DOI: 10.6084/m9.figshare.5861157.v1
title: Giant Epignathus Teratoma Discovered at Birth: A Case Report and 7-Year Follow-Up

description: Abstract Teratomas are tumors composed by tissues derived from the three germ cell layers, and they are relatively uncommon in head and neck. The term epignathus has been applied to teratomas from the oropharynx. This paper reports the case of a giant epignathus teratoma discovered at birth, which was successfully managed and followed up for 7 years. A newborn boy presented a polypoid tumor mass exteriorizing through the mouth over a length of 9 cm, with some surface areas resembling skin and others exhibiting hair. Computed tomography showed that the mass arose deep from the left hemiface. Alpha-fetoprotein (AFP) levels were high (316,000 ng/mL). Surgery was performed and microscopic analysis confirmed the diagnosis of mature teratoma. Because of residual tumor and high AFP levels, the patient was submitted to chemotherapy, resulting in complete regression of the lesion and normalization of AFP levels. Surgical repair of a cleft palate was performed at 5 years of age. At 7 years of age, the patient was in good general health and showed no clinical signs of recurrence. Although epignathus is a rare condition, it should be diagnosed in the fetus as early as possible. Prenatal care provides unquestionable benefits, providing the early diagnosis of anomalies that can jeopardize the life of the fetus and contributing to the indication of cases that require treatment before birth.
DOI: 10.6084/m9.figshare.5861154
title: A Review Paper on Looseness Detection Methods in Bolted Structures

description: Abstract Bolted structures are widely utilized in industrial structures and equipment due to the numerous advantages they possess. However, the use of bolts in these structures by itself can cause considerable flaws or damages. One of the major reasons of flaw in such structures is looseness. Since the looseness is initiated with a reduction in the axial force, measurement and estimation of this force can contribute to a healthy performance of the structure. The methods used to measure axial force of bolts are divided into two: those which measure or estimate the force directly and those which, by controlling physical parameters, do this indirectly. Ba- sed on this categorization, this paper examines over 16 methods used for evaluation of axial force of bolted structures, and presents their theoretical bases, drawbacks and advantages, with the litera- ture on each method being discussed separately. Finally, the methods are compared and the most important criteria in selecting the methods are introduced.
DOI: 10.6084/m9.figshare.5861154.v1
title: A Review Paper on Looseness Detection Methods in Bolted Structures

description: Abstract Bolted structures are widely utilized in industrial structures and equipment due to the numerous advantages they possess. However, the use of bolts in these structures by itself can cause considerable flaws or damages. One of the major reasons of flaw in such structures is looseness. Since the looseness is initiated with a reduction in the axial force, measurement and estimation of this force can contribute to a healthy performance of the structure. The methods used to measure axial force of bolts are divided into two: those which measure or estimate the force directly and those which, by controlling physical parameters, do this indirectly. Ba- sed on this categorization, this paper examines over 16 methods used for evaluation of axial force of bolted structures, and presents their theoretical bases, drawbacks and advantages, with the litera- ture on each method being discussed separately. Finally, the methods are compared and the most important criteria in selecting the methods are introduced.
DOI: 10.6084/m9.figshare.5861151
title: Evaluation of the ELISA technique to search for anti-Toxoplasma gondii IgG in juices from sun dried meat

description: Abstract Toxoplasmosis is an important waterborne and foodborne zoonosis, whose agent is Toxoplasma gondii, and it affects both humans and production animals. This zoonosis is cosmopolitan and its prevalence is related to the consumption of raw or undercooked meat, this habit being considered one of the main risk factors. The control of the potential transmission of toxoplasmosis by meat is relevant, especially in artisanal products such as sun dried meats, which are handcrafted and may be consumed raw or undercooked. In this study, we proposed to evaluate the presence of immunoglobulins of the IgG anti T. gondii class by an ELISA immunoassay technique, standardizing a dilution of the meat juice obtained by defrosting sun dried meat produced from the muscles of experimentally infected animals and also from sun dried meats commercialized in shops in the north of Brazil. The results showed that the potential of the meat juice as a biological material was limited in processed meats, and the test was only possible in samples that showed an optical density (OD) equal to or greater than 0.116, a range that guaranteed the presence of sufficient blood for the ELISA assay, allowing for the measurement of specific anti-T. gondii immunoglobulins. Of the 32 samples of beef obtained from cuts from experimental cattle, only 9 (28%) presented sufficient blood to be tested, as measured by an OD equal to or greater than 0.116, 7 being positive, obtained from cuts from infected experimental animals, and 2 negative, obtained from cuts from control animals. Of the 42 samples of juice from retail sun dried meat, only 6 (14.28%) presented enough blood for the tests and only one presented anti T. gondii immunoglobulins, in agreement with data from the literature. The results were promising and demonstrated the importance of developing research and new approaches in the sanitary control of food offered to the population.
DOI: 10.6084/m9.figshare.5861151.v1
title: Evaluation of the ELISA technique to search for anti-Toxoplasma gondii IgG in juices from sun dried meat

description: Abstract Toxoplasmosis is an important waterborne and foodborne zoonosis, whose agent is Toxoplasma gondii, and it affects both humans and production animals. This zoonosis is cosmopolitan and its prevalence is related to the consumption of raw or undercooked meat, this habit being considered one of the main risk factors. The control of the potential transmission of toxoplasmosis by meat is relevant, especially in artisanal products such as sun dried meats, which are handcrafted and may be consumed raw or undercooked. In this study, we proposed to evaluate the presence of immunoglobulins of the IgG anti T. gondii class by an ELISA immunoassay technique, standardizing a dilution of the meat juice obtained by defrosting sun dried meat produced from the muscles of experimentally infected animals and also from sun dried meats commercialized in shops in the north of Brazil. The results showed that the potential of the meat juice as a biological material was limited in processed meats, and the test was only possible in samples that showed an optical density (OD) equal to or greater than 0.116, a range that guaranteed the presence of sufficient blood for the ELISA assay, allowing for the measurement of specific anti-T. gondii immunoglobulins. Of the 32 samples of beef obtained from cuts from experimental cattle, only 9 (28%) presented sufficient blood to be tested, as measured by an OD equal to or greater than 0.116, 7 being positive, obtained from cuts from infected experimental animals, and 2 negative, obtained from cuts from control animals. Of the 42 samples of juice from retail sun dried meat, only 6 (14.28%) presented enough blood for the tests and only one presented anti T. gondii immunoglobulins, in agreement with data from the literature. The results were promising and demonstrated the importance of developing research and new approaches in the sanitary control of food offered to the population.
DOI: 10.6084/m9.figshare.5861145
title: Bacterial halo blight of coffee crop: aggressiveness and genetic diversity of strains

description: ABSTRACT Bacterial halo blight, caused by Pseudomonas syringae pv. garcae, is an important disease of coffee crop occurring in Brazil and other countries. In recent years, outbreaks of this disease have damaged several coffee crops in Brazil. Aggressiveness and genetic diversity of 25 strains of P. s. pv. garcae, obtained between the years 1958 and 2011, in 23 cities of São Paulo and Minas Gerais states, as well as three strains from Kenya were evaluated in this study. The strains were inoculated on coffee seedlings cultivar Mundo Novo, and their genetic diversity was evaluated by ERIC-PCR, REP-PCR, and their combination. All the strains were pathogenic to the coffee seedlings; the results of pathogenicity tests, in both experiments, could be divided in four aggressiviness classes (highly aggressive; aggressive; moderately aggressive and less aggressive). The Kenyan strains grouped separately from the Brazilian strains with ERIC-PCR and the combination of ERIC- and REP-PCR. The Brazilian strains could be grouped in two sub-clusters, the first including the older strains, obtained from 1958 to 1978, and the other comprising the remaining strains. With a few exceptions, strains isolated from 1997 to 2011, grouped mainly by their region of origin, were predominantly isolated from higher altitude regions, above 800 m. This probably occurred because the climatic conditions that prevail in these regions, characterized by milder temperatures and regular rainfall, are favorable for the coffee crop and for the production of high quality coffee beverage, but can be also favorable to bacterial halo blight.
DOI: 10.6084/m9.figshare.5861145.v1
title: Bacterial halo blight of coffee crop: aggressiveness and genetic diversity of strains

description: ABSTRACT Bacterial halo blight, caused by Pseudomonas syringae pv. garcae, is an important disease of coffee crop occurring in Brazil and other countries. In recent years, outbreaks of this disease have damaged several coffee crops in Brazil. Aggressiveness and genetic diversity of 25 strains of P. s. pv. garcae, obtained between the years 1958 and 2011, in 23 cities of São Paulo and Minas Gerais states, as well as three strains from Kenya were evaluated in this study. The strains were inoculated on coffee seedlings cultivar Mundo Novo, and their genetic diversity was evaluated by ERIC-PCR, REP-PCR, and their combination. All the strains were pathogenic to the coffee seedlings; the results of pathogenicity tests, in both experiments, could be divided in four aggressiviness classes (highly aggressive; aggressive; moderately aggressive and less aggressive). The Kenyan strains grouped separately from the Brazilian strains with ERIC-PCR and the combination of ERIC- and REP-PCR. The Brazilian strains could be grouped in two sub-clusters, the first including the older strains, obtained from 1958 to 1978, and the other comprising the remaining strains. With a few exceptions, strains isolated from 1997 to 2011, grouped mainly by their region of origin, were predominantly isolated from higher altitude regions, above 800 m. This probably occurred because the climatic conditions that prevail in these regions, characterized by milder temperatures and regular rainfall, are favorable for the coffee crop and for the production of high quality coffee beverage, but can be also favorable to bacterial halo blight.
DOI: 10.6084/m9.figshare.5861139
title: Key factors that influence for seasonal production of Guinea grass

description: ABSTRACT: Climate, soil and management are the main drives for growth and production of tropical pastures. Thus, a better understanding of the effects of these factors and their interactions under climate conditions is required to obtain effective management options. Here, we used data from two field trials to research on climate and management interactions on the production seasonality of Panicum maximum Jacq. Treatments included four sampling times (250, 500, 750, and 1000 °C accumulated) during eight regrowth period, under irrigated and rainfed conditions and, cuts were made to simulate grazing intensity. All treatments were arranged in a completely randomized block design with four replications. At each sampling time, basal tillers were sampled to observe meristematic differentiation and were linked with the respective daylength. Soil moisture was determined, and the water availability index (WAI) was calculated. The dry matter production (DMP) was taken and relative productivity was calculated. Soil moisture was the key seasonal drive in spring-summer and the WAI could be used to adjust the maximum production for that season. The major drive for DMP in fall was the daylength, which was found at 11.81 h. For all seasons, DMP correlated better with the residues in early regrowth phase (r = 0.82 and p &lt; 0.0001) and with degree-days at final regrowth phase (r = 0.73 p &lt; 0.01). Applying these critical values to management guidelines should make Guinea grass DMP more efficient on tropical farms.
DOI: 10.6084/m9.figshare.5861139.v1
title: Key factors that influence for seasonal production of Guinea grass

description: ABSTRACT: Climate, soil and management are the main drives for growth and production of tropical pastures. Thus, a better understanding of the effects of these factors and their interactions under climate conditions is required to obtain effective management options. Here, we used data from two field trials to research on climate and management interactions on the production seasonality of Panicum maximum Jacq. Treatments included four sampling times (250, 500, 750, and 1000 °C accumulated) during eight regrowth period, under irrigated and rainfed conditions and, cuts were made to simulate grazing intensity. All treatments were arranged in a completely randomized block design with four replications. At each sampling time, basal tillers were sampled to observe meristematic differentiation and were linked with the respective daylength. Soil moisture was determined, and the water availability index (WAI) was calculated. The dry matter production (DMP) was taken and relative productivity was calculated. Soil moisture was the key seasonal drive in spring-summer and the WAI could be used to adjust the maximum production for that season. The major drive for DMP in fall was the daylength, which was found at 11.81 h. For all seasons, DMP correlated better with the residues in early regrowth phase (r = 0.82 and p &lt; 0.0001) and with degree-days at final regrowth phase (r = 0.73 p &lt; 0.01). Applying these critical values to management guidelines should make Guinea grass DMP more efficient on tropical farms.
DOI: 10.6084/m9.figshare.5861133
title: Ractopamine supplementation improves leanness and carcass yield, minimally affecting pork quality in immunocastrated pigs

description: ABSTRACT: This study was carried out to determine the combining effects of feeding up to 15 mg kg−1 ractopamine (RAC) to physically castrated (PC) pigs or those injected with an anti-GnRF vaccine (IC), on growth performance during suckling, weaning, growing and finishing phases. Out of a total of 1,160 male piglets, 50 % were surgically castrated at age 7, while 50 % underwent immunization against GnRF on the 103rd and 136th day of life. A completely randomized design, with two treatments (PC and IC), was used from the 1st until the 60th day of life. Afterwards, 792 animals, PC and IC, selected according to overall average weight (23.3 ± 0.69 kg) were allotted based on a completely randomized block design with a 2 × 4 factorial arrangement of treatments (castration categories × RAC levels) with 9 replications (11 animals) per main combination effect. IC growing pigs improved feed conversion due to lower average daily feed intake and higher average daily gain (ADG). During the finishing phase, both RAC and immunocastration increased body weight, but the effects were independent. RAC, on its own improved ADG and feed conversion. However, pigs fed 10 mg kg−1 RAC had higher blood lactate compared to those fed lower levels, suggesting that these animals were more susceptible to stress. Muscle depth was influenced only by RAC, whereas fat thickness was lower for IC. Lean meat increased and fat decreased in the shoulder and belly of IC; RAC had a positive effect on belly lean meat only. Either immunocastration or RAC inclusion (at least 5 mg kg−1) promoted muscle gain and fat reduction in pig carcass, adding value to pork.
DOI: 10.6084/m9.figshare.5861133.v1
title: Ractopamine supplementation improves leanness and carcass yield, minimally affecting pork quality in immunocastrated pigs

description: ABSTRACT: This study was carried out to determine the combining effects of feeding up to 15 mg kg−1 ractopamine (RAC) to physically castrated (PC) pigs or those injected with an anti-GnRF vaccine (IC), on growth performance during suckling, weaning, growing and finishing phases. Out of a total of 1,160 male piglets, 50 % were surgically castrated at age 7, while 50 % underwent immunization against GnRF on the 103rd and 136th day of life. A completely randomized design, with two treatments (PC and IC), was used from the 1st until the 60th day of life. Afterwards, 792 animals, PC and IC, selected according to overall average weight (23.3 ± 0.69 kg) were allotted based on a completely randomized block design with a 2 × 4 factorial arrangement of treatments (castration categories × RAC levels) with 9 replications (11 animals) per main combination effect. IC growing pigs improved feed conversion due to lower average daily feed intake and higher average daily gain (ADG). During the finishing phase, both RAC and immunocastration increased body weight, but the effects were independent. RAC, on its own improved ADG and feed conversion. However, pigs fed 10 mg kg−1 RAC had higher blood lactate compared to those fed lower levels, suggesting that these animals were more susceptible to stress. Muscle depth was influenced only by RAC, whereas fat thickness was lower for IC. Lean meat increased and fat decreased in the shoulder and belly of IC; RAC had a positive effect on belly lean meat only. Either immunocastration or RAC inclusion (at least 5 mg kg−1) promoted muscle gain and fat reduction in pig carcass, adding value to pork.
DOI: 10.6084/m9.figshare.5861124
title: Commercial and financial mathematics in the Lutheran parochial schools of Rio Grande do Sul in the first half of the 20th century

description: Abstract The article discusses how commercial and financial mathematics was taught in the Lutheran parochial schools of Rio Grande do Sul, during the first half of the 20th century, through the analysis of the Segunda Aritmética and of the Terceira Aritmética of the Concórdia series, edited by the Lutheran Church for their schools. The methodological support is grounded on cultural history and on content analysis. The Missouri Synod, currently the Evangelical Lutheran Church of Brazil, began its mission in the German colonies of Rio Grande do Sul in 1900, by founding religious congregations and parochial schools. These schools were inserted in a missionary and community project that sought to teach the mother tongue, mathematics, and cultural, social and religious values. Commercial and financial mathematics was approached in a contextualized manner in relation to the reality of the students, encouraging the development of the proportional thinking, of the correct calculation of return and debt values, and of the study of financial investments involving simple interest.
DOI: 10.6084/m9.figshare.5861124.v1
title: Commercial and financial mathematics in the Lutheran parochial schools of Rio Grande do Sul in the first half of the 20th century

description: Abstract The article discusses how commercial and financial mathematics was taught in the Lutheran parochial schools of Rio Grande do Sul, during the first half of the 20th century, through the analysis of the Segunda Aritmética and of the Terceira Aritmética of the Concórdia series, edited by the Lutheran Church for their schools. The methodological support is grounded on cultural history and on content analysis. The Missouri Synod, currently the Evangelical Lutheran Church of Brazil, began its mission in the German colonies of Rio Grande do Sul in 1900, by founding religious congregations and parochial schools. These schools were inserted in a missionary and community project that sought to teach the mother tongue, mathematics, and cultural, social and religious values. Commercial and financial mathematics was approached in a contextualized manner in relation to the reality of the students, encouraging the development of the proportional thinking, of the correct calculation of return and debt values, and of the study of financial investments involving simple interest.