cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.5980117
title: Using a smartphone as a tool to measure compensatory and anomalous head positions

description: ABSTRACT Purpose: To describe a new method for measuring anomalous head positions by using a cell phone. Methods: The photo rotation feature of the iPhone® PHOTOS application was used. With the patient seated on a chair, a horizontal stripe was fixed on the wall in the background and a sagittal stripe was fixed on the seat. Photographs were obtained in the following views: front view (photographs A and B; with the head tilted over one shoulder) and upper axial view (photographs C and D; viewing the forehead and nose) (A and C are without camera rotation, and B and D are with camera rotation). A blank sheet of paper with two straight lines making a 32-degree angle was also photographed. Thirty examiners were instructed to measure the rotation required to align the reference points with the orthogonal axes. In order to set benchmarks to be compared with the measurements obtained by the examiners, blue lines were digitally added to the front and upper view photographs. Results: In the photograph of the sheet of paper (p=0.380 and a=5%), the observed values did not differ statistically from the known value of 32 degrees. Mean measurements were as follows: front view photograph A, 22.8 ± 2.77; front view B, 21.4 ± 1.61; upper view C, 19.6 ± 2.36; and upper view D, 20.1 ± 2.33 degrees. The mean difference in measurements for the front view photograph A was -1.88 (95% CI -2.88 to -0.88), front view B was -0.37 (95% CI -0.97 to 0.17), upper view C was 1.43 (95% CI 0.55 to 2.24), and upper view D was 1.87 (95% CI 1.02 to 2.77). Conclusion: The method used in this study for measuring anomalous head position is reproducible, with maximum variations for AHPs of 2.88 degrees around the X-axis and 2.77 degrees around the Y-axis.
DOI: 10.6084/m9.figshare.5980117.v1
title: Using a smartphone as a tool to measure compensatory and anomalous head positions

description: ABSTRACT Purpose: To describe a new method for measuring anomalous head positions by using a cell phone. Methods: The photo rotation feature of the iPhone® PHOTOS application was used. With the patient seated on a chair, a horizontal stripe was fixed on the wall in the background and a sagittal stripe was fixed on the seat. Photographs were obtained in the following views: front view (photographs A and B; with the head tilted over one shoulder) and upper axial view (photographs C and D; viewing the forehead and nose) (A and C are without camera rotation, and B and D are with camera rotation). A blank sheet of paper with two straight lines making a 32-degree angle was also photographed. Thirty examiners were instructed to measure the rotation required to align the reference points with the orthogonal axes. In order to set benchmarks to be compared with the measurements obtained by the examiners, blue lines were digitally added to the front and upper view photographs. Results: In the photograph of the sheet of paper (p=0.380 and a=5%), the observed values did not differ statistically from the known value of 32 degrees. Mean measurements were as follows: front view photograph A, 22.8 ± 2.77; front view B, 21.4 ± 1.61; upper view C, 19.6 ± 2.36; and upper view D, 20.1 ± 2.33 degrees. The mean difference in measurements for the front view photograph A was -1.88 (95% CI -2.88 to -0.88), front view B was -0.37 (95% CI -0.97 to 0.17), upper view C was 1.43 (95% CI 0.55 to 2.24), and upper view D was 1.87 (95% CI 1.02 to 2.77). Conclusion: The method used in this study for measuring anomalous head position is reproducible, with maximum variations for AHPs of 2.88 degrees around the X-axis and 2.77 degrees around the Y-axis.
DOI: 10.6084/m9.figshare.5980111
title: Anterior segment optical coherence tomography findings in type I Boston keratoprosthesis

description: ABSTRACT Purpose: To report the results of high-resolution anterior segment optical coherence tomography of patients implanted with a type 1 Boston keratoprosthesis (KPro). Methods: The retrospective study cohort included 11 eyes of 11 patients (average age, 58.4 years; range, 34-83 years). All subjects underwent anterior segment optical coherence tomography at a single posteoperative time point. The main outcome measures were retro-backplate and retro-optic membrane formation, thinning and gap formation of the corneal carrier graft (melting), and degree of angle closure. Results: Preoperative diagnoses included chemical burn (55%), failed corneal transplant (36%), and Stevens-Johnson syndrome (9%). The mean postoperative follow-up duration was 38.5 (range, 12-72) months. The most frequent findings of anterior segment optical coherence tomography were retroprosthetic membrane formation (63%, 7/11), thinning of the corneal carrier graft (melting; 55%, 6/11), and a narrow or closed angle (91%, 10/11). Other less common findings were epithelial growth over the optic surface and periprosthetic cyst formation. Retroprosthetic membrane formation was observed in all patients with melting (6/11). Conclusions: Detailed postoperative examination and visualization of subtle changes of keratoprosthesis implanted eyes by slit lamp biomicroscopy are often difficult. Anterior segment optical coherence tomography is a useful, noninvasive, and quantitative imaging technique that provides useful information to postoperatively monitor the anatomic stability of an implanted keratoprosthesis.
DOI: 10.6084/m9.figshare.5980111.v1
title: Anterior segment optical coherence tomography findings in type I Boston keratoprosthesis

description: ABSTRACT Purpose: To report the results of high-resolution anterior segment optical coherence tomography of patients implanted with a type 1 Boston keratoprosthesis (KPro). Methods: The retrospective study cohort included 11 eyes of 11 patients (average age, 58.4 years; range, 34-83 years). All subjects underwent anterior segment optical coherence tomography at a single posteoperative time point. The main outcome measures were retro-backplate and retro-optic membrane formation, thinning and gap formation of the corneal carrier graft (melting), and degree of angle closure. Results: Preoperative diagnoses included chemical burn (55%), failed corneal transplant (36%), and Stevens-Johnson syndrome (9%). The mean postoperative follow-up duration was 38.5 (range, 12-72) months. The most frequent findings of anterior segment optical coherence tomography were retroprosthetic membrane formation (63%, 7/11), thinning of the corneal carrier graft (melting; 55%, 6/11), and a narrow or closed angle (91%, 10/11). Other less common findings were epithelial growth over the optic surface and periprosthetic cyst formation. Retroprosthetic membrane formation was observed in all patients with melting (6/11). Conclusions: Detailed postoperative examination and visualization of subtle changes of keratoprosthesis implanted eyes by slit lamp biomicroscopy are often difficult. Anterior segment optical coherence tomography is a useful, noninvasive, and quantitative imaging technique that provides useful information to postoperatively monitor the anatomic stability of an implanted keratoprosthesis.
DOI: 10.6084/m9.figshare.5980108
title: The use of photogrammetry to evaluate chest wall after arthrodesis in patients with Adolescent Idiopathic Scoliosis

description: Abstract Introduction: Adolescent Idiopathic Scoliosis (AIS) is a three-dimensional spine deformity that creates changes in the rib cage biomechanics. Objective: Evaluate changes on the chest wall, quality of life and lung function on the preoperative and postoperative of arthrodesis in patients with AIS. Methods: Eighteen AIS patients with surgical indication for arthrodesis of both sexes aged between 11 and 18 years were evaluated. The evaluation of the chest was taken by using photogrammetry Postural Assessment Software (PAS). Thoracic markers were created using angles (A) and distances (D): A1 (bilateral acromion/manubrium), A2 (bilateral acromion/xiphoid process), A3 (bilateral rib/xiphoid process), A5 (acromion/scapula inferior angle/inframammilary), A6 (C7/acromion/T3), A7 (scapular irregularity) and D3 (xiphoid process to the anterior superior iliac spine). Spirometry and assessment of Quality of Life Questionnaire (SRS - 30) was performed. Evaluations were performed on the preoperative period (PRE), on two months of postoperative (PO1) and on the late postoperative period (LPO). Data were analysed using analysis of variance with repeated measures and Bonferroni method comparisons. Results: The thoracic markers A1, A2, A3, A5, A6, A7 and D3 showed significant difference in the LPO. All domains and the total score of the SRS - 30 questionnaire showed significant increase in periods PO1 and LPO. The FVC and FEV1 showed significant increase in the LPO. Conclusion: After arthrodesis patients with AIS showed alterations in the chest wall, associated with improved quality of life and lung function, especially in the late postoperative period.
DOI: 10.6084/m9.figshare.5980108.v1
title: The use of photogrammetry to evaluate chest wall after arthrodesis in patients with Adolescent Idiopathic Scoliosis

description: Abstract Introduction: Adolescent Idiopathic Scoliosis (AIS) is a three-dimensional spine deformity that creates changes in the rib cage biomechanics. Objective: Evaluate changes on the chest wall, quality of life and lung function on the preoperative and postoperative of arthrodesis in patients with AIS. Methods: Eighteen AIS patients with surgical indication for arthrodesis of both sexes aged between 11 and 18 years were evaluated. The evaluation of the chest was taken by using photogrammetry Postural Assessment Software (PAS). Thoracic markers were created using angles (A) and distances (D): A1 (bilateral acromion/manubrium), A2 (bilateral acromion/xiphoid process), A3 (bilateral rib/xiphoid process), A5 (acromion/scapula inferior angle/inframammilary), A6 (C7/acromion/T3), A7 (scapular irregularity) and D3 (xiphoid process to the anterior superior iliac spine). Spirometry and assessment of Quality of Life Questionnaire (SRS - 30) was performed. Evaluations were performed on the preoperative period (PRE), on two months of postoperative (PO1) and on the late postoperative period (LPO). Data were analysed using analysis of variance with repeated measures and Bonferroni method comparisons. Results: The thoracic markers A1, A2, A3, A5, A6, A7 and D3 showed significant difference in the LPO. All domains and the total score of the SRS - 30 questionnaire showed significant increase in periods PO1 and LPO. The FVC and FEV1 showed significant increase in the LPO. Conclusion: After arthrodesis patients with AIS showed alterations in the chest wall, associated with improved quality of life and lung function, especially in the late postoperative period.
DOI: 10.6084/m9.figshare.5980105
title: LC-MS/MS analysis of neonicotinoid insecticides: Residue findings in chilean honeys

description: ABSTRACT Neonicotinoids are a relatively new generation of insecticides that have been used for control of pests such as aphids, leafhoppers and whiteflies. This paper presents for the first time a determination of residues of four neonicotinoid insecticides (acetamiprid, thiamethoxam, thiacloprid and imidacloprid) in Chilean honey using QuEChERS extraction and UHPLC-MS/MS analysis. The limits of detection and quantification found for all analytes ranging from 0.34 to 1.43 μg kg-1 and from 0.30 to 4.76 μg kg-1, respectively. The extraction using QuEChERS method provided recoveries over 79% and the precision showed coefficient of variation lower than 20%. These data are in agreement with the international criteria that recommend general recovery limits of 70 - 120%. Of the 16 samples analyzed, in three honey samples neonicotinoids pesticides were detected. These three samples were collected from the same geographical area (Rengo). Fruit and grain production characterize the province of Rengo. The analysis of the botanical origin of these honeys showed the absence of pollen grains of crops and the majority presence of pollen grains of weeds such as Medicago sativa, Galega officinalis and Brassica rapa, which could be associated with crops. Although the residue levels found were low, the results also confirm the actual occurrence of a transfer of neonicotinoid insecticides from exposed honeybees into honey.
DOI: 10.6084/m9.figshare.5980105.v1
title: LC-MS/MS analysis of neonicotinoid insecticides: Residue findings in chilean honeys

description: ABSTRACT Neonicotinoids are a relatively new generation of insecticides that have been used for control of pests such as aphids, leafhoppers and whiteflies. This paper presents for the first time a determination of residues of four neonicotinoid insecticides (acetamiprid, thiamethoxam, thiacloprid and imidacloprid) in Chilean honey using QuEChERS extraction and UHPLC-MS/MS analysis. The limits of detection and quantification found for all analytes ranging from 0.34 to 1.43 μg kg-1 and from 0.30 to 4.76 μg kg-1, respectively. The extraction using QuEChERS method provided recoveries over 79% and the precision showed coefficient of variation lower than 20%. These data are in agreement with the international criteria that recommend general recovery limits of 70 - 120%. Of the 16 samples analyzed, in three honey samples neonicotinoids pesticides were detected. These three samples were collected from the same geographical area (Rengo). Fruit and grain production characterize the province of Rengo. The analysis of the botanical origin of these honeys showed the absence of pollen grains of crops and the majority presence of pollen grains of weeds such as Medicago sativa, Galega officinalis and Brassica rapa, which could be associated with crops. Although the residue levels found were low, the results also confirm the actual occurrence of a transfer of neonicotinoid insecticides from exposed honeybees into honey.
DOI: 10.6084/m9.figshare.5980102
title: Comparisons of retinal nerve fiber layer thickness changes after macular hole surgery

description: ABSTRACT Purpose: To compare postoperative changes in retinal nerve fiber layer thickness in patients with macular holes treated with vitrectomy with Brilliant Blue-assisted internal limiting membrane peeling. Methods: Twenty-two eyes of 20 patients with macular holes were studied. Each eye was selected to undergo Brilliant Blue-assisted internal limiting membrane peeling. The circumferential retinal nerve fiber layer thickness was determined using spectral domain optical coherence tomography preoperatively and 2 months postoperatively. Mean overall and sectoral retinal nerve fiber layer thicknesses were obtained for each patient. Results: There was no statistically significant difference (p≥0.05) between the pre- and post-treatment measurements in relation to each CFN variable, i.e., on average, pre-treatment measures were the same as post-treatment measures. Furthermore, despite the differences between the pre- and post-treatment measures always being positive (pre-post &gt;0), they are not statistically significant. Conclusions: This study showed no significant decrease in retinal nerve fiber layer thickness measurements after macular holes surgery, regardless of age or sex.
DOI: 10.6084/m9.figshare.5980102.v1
title: Comparisons of retinal nerve fiber layer thickness changes after macular hole surgery

description: ABSTRACT Purpose: To compare postoperative changes in retinal nerve fiber layer thickness in patients with macular holes treated with vitrectomy with Brilliant Blue-assisted internal limiting membrane peeling. Methods: Twenty-two eyes of 20 patients with macular holes were studied. Each eye was selected to undergo Brilliant Blue-assisted internal limiting membrane peeling. The circumferential retinal nerve fiber layer thickness was determined using spectral domain optical coherence tomography preoperatively and 2 months postoperatively. Mean overall and sectoral retinal nerve fiber layer thicknesses were obtained for each patient. Results: There was no statistically significant difference (p≥0.05) between the pre- and post-treatment measurements in relation to each CFN variable, i.e., on average, pre-treatment measures were the same as post-treatment measures. Furthermore, despite the differences between the pre- and post-treatment measures always being positive (pre-post &gt;0), they are not statistically significant. Conclusions: This study showed no significant decrease in retinal nerve fiber layer thickness measurements after macular holes surgery, regardless of age or sex.
DOI: 10.6084/m9.figshare.5980096
title: Some notes on informality, labour productivity and capacity utilization and its impacts over economic growth in Brazil in the 2000s

description: Abstract: This paper aims to discuss the implications of informality in Brazil by presenting new evidence on value added, occupations, and in labor productivity in the formal and informal sectors, disaggregated by economic activity. Moreover, we developed counterfactual exercises for these variables in order to assess the possible impacts of labor migration from non-formal sector to the formal sector as well as from changes in the rate of capacity utilization.
DOI: 10.6084/m9.figshare.5980096.v1
title: Some notes on informality, labour productivity and capacity utilization and its impacts over economic growth in Brazil in the 2000s

description: Abstract: This paper aims to discuss the implications of informality in Brazil by presenting new evidence on value added, occupations, and in labor productivity in the formal and informal sectors, disaggregated by economic activity. Moreover, we developed counterfactual exercises for these variables in order to assess the possible impacts of labor migration from non-formal sector to the formal sector as well as from changes in the rate of capacity utilization.
DOI: 10.6084/m9.figshare.5980093
title: Clinical importance of second-opinion interpretations by radiologists specializing in gynecologic oncology at a tertiary cancer center: magnetic resonance imaging for endometrial cancer staging

description: Abstract Objective: To determine whether there are substantive differences between the initial interpretations of magnetic resonance imaging (MRI) scans acquired at outside facilities and the second-opinion interpretations of radiologists specializing in gynecologic oncology at a tertiary cancer center, among patients referred for endometrial cancer staging. Materials and Methods: This was a retrospective, comparative analysis of 153 initial and second-opinion MRI reports for endometrial cancer staging officially submitted for review by radiologists specializing in gynecologic oncology. For each case, the relationship between the initial and second-opinion reports, regarding the suggested diagnosis and the clinically relevant MRI findings reported, was categorized as "agreement" or "disagreement". Histopathology was used in order to establish the definitive diagnosis. Results: Disagreement was found in 58 (37.9%) of the 153 cases. Second-opinion interpretations reported findings that affected the preoperative cancer staging and could have led to a change in treatment in 38 cases (24.8%); that did not affect the preoperative staging but provided information that was more accurate in 8 (5.2%); and that suggested a new cancer diagnosis in 12 (7.8%). In 37 cases (24.2%), there was a potential for changes in patient care. Among the 58 cases of disagreement, a definitive (histopathological) diagnosis was made in 41 (70.7%). In 31 (75.6%) of those 41 cases, the second-opinion report was more accurate than was the initial report. Conclusion: Discordant interpretations of MRI examinations, which can have a substantial effect on the clinical management of patients, appear to be common.
DOI: 10.6084/m9.figshare.5980093.v1
title: Clinical importance of second-opinion interpretations by radiologists specializing in gynecologic oncology at a tertiary cancer center: magnetic resonance imaging for endometrial cancer staging

description: Abstract Objective: To determine whether there are substantive differences between the initial interpretations of magnetic resonance imaging (MRI) scans acquired at outside facilities and the second-opinion interpretations of radiologists specializing in gynecologic oncology at a tertiary cancer center, among patients referred for endometrial cancer staging. Materials and Methods: This was a retrospective, comparative analysis of 153 initial and second-opinion MRI reports for endometrial cancer staging officially submitted for review by radiologists specializing in gynecologic oncology. For each case, the relationship between the initial and second-opinion reports, regarding the suggested diagnosis and the clinically relevant MRI findings reported, was categorized as "agreement" or "disagreement". Histopathology was used in order to establish the definitive diagnosis. Results: Disagreement was found in 58 (37.9%) of the 153 cases. Second-opinion interpretations reported findings that affected the preoperative cancer staging and could have led to a change in treatment in 38 cases (24.8%); that did not affect the preoperative staging but provided information that was more accurate in 8 (5.2%); and that suggested a new cancer diagnosis in 12 (7.8%). In 37 cases (24.2%), there was a potential for changes in patient care. Among the 58 cases of disagreement, a definitive (histopathological) diagnosis was made in 41 (70.7%). In 31 (75.6%) of those 41 cases, the second-opinion report was more accurate than was the initial report. Conclusion: Discordant interpretations of MRI examinations, which can have a substantial effect on the clinical management of patients, appear to be common.
DOI: 10.6084/m9.figshare.5980087
title: Reproductive biology of Hyphessobrycon eques (Characiformes: Characidae) in Southern Pantanal, Brazil

description: Abstract Population and reproductive aspects allow the knowledge and understanding of population dynamics and the influence of environmental factors, in addition to ensure the success of a species continuity. Thus, the aim of this study was to analyze population and reproductive traits of the species Hyphessobrycon eques in southern Pantanal, Brazil. Monthly samplings were conducted from February/2009 to January/2011, with 617 individuals analyzed, being 365 females and 262 males. A similar form of distribution in length and weight between the sexes was observed. There was no significant variation in sex ratio over time, with higher proportion of females during the entire sampled period. Both sexes presented a angular coefficient of Weight/Length (b) relationship greater than 3, with speed of increase in weight greater than in length. For females, a long reproductive period was observed, with greater reproductive intensity from January through June. No significant correlation was observed between the Gonadosomatic Index (GSI) and the average temperature, rainfall and river level, despite the fact that reproductive activity occurs in autumn/winter, when there are favorable conditions due to flooding. The size at first maturation (L50) was 20.2 mm, with confidence interval varying from 19.7 through 20.7 mm. The average fecundity was 191.9 oocytes/females and was significantly related to the standard length and total weight (g), demonstrating a relation with energy accumulation to invest in reproduction. The long reproductive period, intensified by partial spawning, higher proportion of females and low L50, show that the species has strategies necessary for survival and rapid population growth, common in small species characterized as r-strategists.