cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7677167
title: Doped Silicon Nanowires for Lithium Ion Battery Anodes

description: Nanostructured silicon (Si) has showed outstanding results as Li-ion battery anode material. Fabrication of nanostructured silicon anode materials is usually very complex, time consuming and expensive. In this work, silicon nanowires (SiNW`s) were produced by using rapid and uncostly metal catalyzed electroless etching (MCEE) method from various silicon wafers with different dopant atoms and concentrations. We have investigated the effect of doping level on capacities and cycle stability. Highly doped silicon nanowires produced better results than lightly doped silicon nanowires due to their highly conductive and highly porous nature. Arsenic doped silicon nanowire anode electrodes have reached a capacity of 3635 mAh/g for the first lithiation and maximum 25% charge capacity loss after the 15th cycle. Owing to their small size and porosity this highly doped silicon nanowires showed very high performance and cycle retention as a lithium ion battery anode material.
DOI: 10.6084/m9.figshare.7677170.v1
title: Green Chemistry Method Based on PARAFAC EEM Data Modeling for Benzo[a]pyrene Quantitation in Distilled Spirit

description: Benzo[a]pyrene (BaP) is often used as a marker of polycyclic aromatic hydrocarbons (PAHs) in beverages. This marker is often quantified by chromatographic methods, which require sample preparations involving the use of reagents, solvents, extraction, pre-concentration, and/or cleanup steps. In this study, a new method for quantification of BaP in cachaças (liquors) that does not use any sample preparation was developed. Interferents in cachaças were overcome using excitation-emission matrices data modeling with parallel factor analysis (PARAFAC). The recoveries ranged from 93.20 to 101.13%, and the relative error of prediction and limit of detection were, respectively, estimated at 2.66% and 2.88 ng mL-1. The proposed method is inexpensive and less time consuming than other approaches described in the literature, uses no reagents, solvents or extraction, has no pre-concentration or cleanup steps, contributing to green analytical chemistry.
DOI: 10.6084/m9.figshare.7677173.v1
title: The More Doctors Program in remote areas: the experience of the Special Supervision Group in Pará, Brazil

description: Abstract The More Doctors Program encompasses an academic supervision carried out by supervisory institutions that have signed an agreement with the Ministry of Education (MEC). Academic supervision is part of the educational offers and implies periodic and regular visits to participant doctors. However, due to the difficulties of some institutions in the North region to fulfill their responsibilities under the Project More Doctors for Brazil, MEC created the Special Supervision Group (GES), which has been operating since 2014 in that region. This article records the GES experience in the state of Pará from January 2015 to May 2017. Its main contribution is to enable the provision of care for the population that inhabits a vast region where there is shortage of doctors, as the supervision of the professionals is mandatory and if it did not occur, the Program would not be allowed in Pará.
DOI: 10.6084/m9.figshare.7677161.v1
title: GOLD RECOVERY FROM PRINTED CIRCUIT BOARDS OF MOBILE PHONES SCRAPS USING A LEACHING SOLUTION ALTERNATIVE TO CYANIDE

description: Abstract Currently, the printed circuit boards (PCB) of waste electrical and electronic equipment (WEEE) are attracting interest among researchers for environmental concern reasons and mainly for their content of precious metals such as gold. Thus, this study aims to characterize different types of PCBs from mobile phones in relation to the amount of gold contained, to evaluate alternative leaching agents for the gold (ammonium and sodium thiosulfate) and compare these to commercial stripping (cyanide-based) and then the recovery of gold by the electrometallurgical route. First, the amount of gold was determined. Then, alternative leaching agents were tested under different concentrations and time. A cyanide-based solution was also tested to compare the results. The results showed that the content of gold varied from 142 to 700 g/ton. The cyanide-based solution was able to extract 88% of the gold, while sodium and ammonium thiosulfate extracted 70 and 75% of the gold, respectively. The electrowinning tests showed a 94% recovery of the gold present in thiosulfate solutions.
DOI: 10.7284/119019
title: GNSS (Global Navigation Satellite System) data collected during research cruise BH14-23 using a Northstar 941X instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7677167.v1
title: Doped Silicon Nanowires for Lithium Ion Battery Anodes

description: Nanostructured silicon (Si) has showed outstanding results as Li-ion battery anode material. Fabrication of nanostructured silicon anode materials is usually very complex, time consuming and expensive. In this work, silicon nanowires (SiNW`s) were produced by using rapid and uncostly metal catalyzed electroless etching (MCEE) method from various silicon wafers with different dopant atoms and concentrations. We have investigated the effect of doping level on capacities and cycle stability. Highly doped silicon nanowires produced better results than lightly doped silicon nanowires due to their highly conductive and highly porous nature. Arsenic doped silicon nanowire anode electrodes have reached a capacity of 3635 mAh/g for the first lithiation and maximum 25% charge capacity loss after the 15th cycle. Owing to their small size and porosity this highly doped silicon nanowires showed very high performance and cycle retention as a lithium ion battery anode material.
DOI: 10.6084/m9.figshare.7677143
title: BEHAVIORAL REGULATION IN SPORT QUESTIONNAIRE (BRSQ): USE IN YOUNG BRAZILIAN ATHLETES

description: ABSTRACT Introduction: The Behavioral Regulation in Sport Questionnaire (BRSQ) was originally proposed in English in order to identify sports motivation regulations according to the self-determination theory. Objectives: To translate into Portuguese, to perform cross-cultural adaptation, and to examine the psychometric properties of the BRSQ in a sample of young Brazilian athletes. Methods: The original version was translated according to international recommendations. A panel of judges analyzed the translated versions of the questionnaire, using semantic, idiomatic, cultural and conceptual equivalence as analysis criteria. The final version of the translated questionnaire was administered in a sample of 1217 young athletes (410 girls and 807 boys) aged 12 to 17 years. An exploratory factor analysis was carried out to identify initial psychometric properties, followed by a confirmatory factor analysis. Cronbach's alpha coefficient was used to assess the internal consistency of each factor associated with the BRSQ. Results: After minor changes identified in the translation process, the panel of judges was of the opinion that the Portuguese version of the BRSQ had semantic, idiomatic, cultural and conceptual equivalence. The factor analysis confirmed the structure of the eight factors proposed originally, through the statistical indicators χ2/gl = 1.87, CFI = 0.940, GFI = 0.945, AGFI = 0.958 and RMSR = 0.052 (95% CI 0.043 – 0.062). The Cronbach's alpha ranged from 0.71 to 0.85. Conclusions: Translation, cross-cultural adaptation and analysis of the psychometric qualities of the BRSQ were satisfactory, facilitating its application in future studies involving young athletes in Brazil. Level of Evidence III; Retrospective comparative study.
DOI: 10.7284/123947
title: ADCP (Acoustic Doppler Current Profiler) data collected during research cruise BH15-01 using a RDI VM-150 instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7677143.v1
title: BEHAVIORAL REGULATION IN SPORT QUESTIONNAIRE (BRSQ): USE IN YOUNG BRAZILIAN ATHLETES

description: ABSTRACT Introduction: The Behavioral Regulation in Sport Questionnaire (BRSQ) was originally proposed in English in order to identify sports motivation regulations according to the self-determination theory. Objectives: To translate into Portuguese, to perform cross-cultural adaptation, and to examine the psychometric properties of the BRSQ in a sample of young Brazilian athletes. Methods: The original version was translated according to international recommendations. A panel of judges analyzed the translated versions of the questionnaire, using semantic, idiomatic, cultural and conceptual equivalence as analysis criteria. The final version of the translated questionnaire was administered in a sample of 1217 young athletes (410 girls and 807 boys) aged 12 to 17 years. An exploratory factor analysis was carried out to identify initial psychometric properties, followed by a confirmatory factor analysis. Cronbach's alpha coefficient was used to assess the internal consistency of each factor associated with the BRSQ. Results: After minor changes identified in the translation process, the panel of judges was of the opinion that the Portuguese version of the BRSQ had semantic, idiomatic, cultural and conceptual equivalence. The factor analysis confirmed the structure of the eight factors proposed originally, through the statistical indicators χ2/gl = 1.87, CFI = 0.940, GFI = 0.945, AGFI = 0.958 and RMSR = 0.052 (95% CI 0.043 – 0.062). The Cronbach's alpha ranged from 0.71 to 0.85. Conclusions: Translation, cross-cultural adaptation and analysis of the psychometric qualities of the BRSQ were satisfactory, facilitating its application in future studies involving young athletes in Brazil. Level of Evidence III; Retrospective comparative study.
DOI: 10.6084/m9.figshare.7677131
title: Identification of a Subtype of Poorly Differentiated Invasive Ductal Carcinoma of the Breast Based on Vimentin and E-cadherin Expression

description: Abstract Objective The use of molecular markers can identify a subgroup of tumors with distinct recurrence patterns. The present study aimed to characterize the immunohistochemical expression of vimentin (VIM), of E-cadherin (CDH1), and of cytokeratin 5 (CK5) in patients with invasive ductal carcinomas (IDCs). Methods We have constructed a tissuemicroarray (TMA) from87 patients with IDC of the breast. Immunohistochemistry (IHC) was performed to study the expression of estrogen and progesterone receptors (ER and PgR), human epidermal growth factor receptor 2 (HER2), VIM, CDH1, CK5, and Ki67. The tumors were classified as luminal A and B (n = 39), HER2 enriched (n = 25), and triple-negative (TNBC) (n = 23), based on the IHC expression. Results We have observed that luminal A and B tumors lack the VIM+/CDH1-/low phenotype. This phenotype was observed in 16.5% of the HER2+ tumors and in 60% of the TNBC tumors (p = 0.0001). Out of a total of 20 TNBC tumors, the CK5 (basal-like marker) was positive in 11 of them. The VIM+/CDH1-/low phenotype was observed in 5 CK5+ TNBC tumors (45%) and in 7 out of 9 CK5- TNBC tumors (78%) (p = 0.02). The median Ki67 index in the VIM+/CDH1-/low tumors was 13.6 (range: 17.8-45.4) compared with 9.8 (range: 4.1-38.1) in other tumors (p = 0.0007). The presence of lymph nodemetastasis was less frequent in patients with VIM+/CDH1-/low tumors (23% versus 61%; X2 test; p = 0.01). Conclusion Our findings suggest that the expression of VIM and CDH1 can identify a subset of IDCs of the breast with a mesenchymal phenotype associated with poor prognosis, high-grade lesion, and high mitotic index.
DOI: 10.6084/m9.figshare.7677128
title: Interdisciplinary planning as a landmark for treatment: Case report with a 2-years follow-up

description: Abstract Case report: young adult woman with esthetic complaints regarding her smile and frontal teeth aspect. At first glance, the problem seemed to be only the shape of the lateral upper incisors and a small diastema between the central incisors. The diagnosis shared between the orthodontist and the prosthetist led us to consider some other important aspects, such as the deep bite, the teeth inclination and the lips support. All these findings led us to consider that the right way to improve the esthetics of the patient’s smile was to plan an orthodontic treatment. This would serve not only for the distribution of the spaces, but mostly it would improve all other problems, before the restoration of the upper lateral teeth with two ceramic veneers. Results: the treatment plan achieved the right distribution of spaces for upper lateral incisors, significant correction of the incisors inclination with important reduction of overbite and better lip support, upper laterals restorations with ceramic feldspathic veneers, obtaining a good integration with natural teeth satisfying patient complaint. Conclusion: in cases which involve interdisciplinary approach, the fundamental step comes from the beginning, when only an initial diagnosis shared among the team of specialists can define the patient problems from different points of view. In this way, we can better understand the competency fields and plan the right treatment and time sequence.
DOI: 10.7284/123913
title: CTD (Conductivity, Temperature, Depth) data collected during research cruise BH15-01 using a Sea-Bird SBE-911+ instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7677125
title: SPME Fiber Evaluation for Volatile Organic Compounds Extraction from Acerola

description: Volatile organic compounds (VOCs) were isolated from acerola fruits (Malpighia emarginata D.C.), by means of different solid phase microextraction (SPME) fibers. For the extraction, the headspace SPME method was used, identifying the VOCs by gas chromatography (GC) with mass spectrometry (MS). The objective of this work was to evaluate the efficiency of SPME fibers and determine the best conditions for extracting VOCs from acerola fruit. The investigated conditions were: extraction time (20, 30 and 40 min), extraction temperature (25, 45 and 65 ºC) and agitation (0, 50 and 100 rpm). Of the evaluated fibers, polydimethylsiloxane (PDMS)/divinylbenzene (DVB) extracted the highest number of VOCs, most belonging to terpene, carboxylic acids and hydrocarbons. According to the investigated conditions, most compounds were obtained with an extraction time of 20 min, extraction temperature 65 ºC, and no agitation. Compounds cumene, o-xylene, thymol, m-cymene, o-cymene, 2-methyl-1,3-butadiene, anethol, 3-buten-2-one and methyl octadecanoic ester were responsible for the volatile profile of acerola.
DOI: 10.6084/m9.figshare.7677128.v1
title: Interdisciplinary planning as a landmark for treatment: Case report with a 2-years follow-up

description: Abstract Case report: young adult woman with esthetic complaints regarding her smile and frontal teeth aspect. At first glance, the problem seemed to be only the shape of the lateral upper incisors and a small diastema between the central incisors. The diagnosis shared between the orthodontist and the prosthetist led us to consider some other important aspects, such as the deep bite, the teeth inclination and the lips support. All these findings led us to consider that the right way to improve the esthetics of the patient’s smile was to plan an orthodontic treatment. This would serve not only for the distribution of the spaces, but mostly it would improve all other problems, before the restoration of the upper lateral teeth with two ceramic veneers. Results: the treatment plan achieved the right distribution of spaces for upper lateral incisors, significant correction of the incisors inclination with important reduction of overbite and better lip support, upper laterals restorations with ceramic feldspathic veneers, obtaining a good integration with natural teeth satisfying patient complaint. Conclusion: in cases which involve interdisciplinary approach, the fundamental step comes from the beginning, when only an initial diagnosis shared among the team of specialists can define the patient problems from different points of view. In this way, we can better understand the competency fields and plan the right treatment and time sequence.
DOI: 10.6084/m9.figshare.7677131.v1
title: Identification of a Subtype of Poorly Differentiated Invasive Ductal Carcinoma of the Breast Based on Vimentin and E-cadherin Expression

description: Abstract Objective The use of molecular markers can identify a subgroup of tumors with distinct recurrence patterns. The present study aimed to characterize the immunohistochemical expression of vimentin (VIM), of E-cadherin (CDH1), and of cytokeratin 5 (CK5) in patients with invasive ductal carcinomas (IDCs). Methods We have constructed a tissuemicroarray (TMA) from87 patients with IDC of the breast. Immunohistochemistry (IHC) was performed to study the expression of estrogen and progesterone receptors (ER and PgR), human epidermal growth factor receptor 2 (HER2), VIM, CDH1, CK5, and Ki67. The tumors were classified as luminal A and B (n = 39), HER2 enriched (n = 25), and triple-negative (TNBC) (n = 23), based on the IHC expression. Results We have observed that luminal A and B tumors lack the VIM+/CDH1-/low phenotype. This phenotype was observed in 16.5% of the HER2+ tumors and in 60% of the TNBC tumors (p = 0.0001). Out of a total of 20 TNBC tumors, the CK5 (basal-like marker) was positive in 11 of them. The VIM+/CDH1-/low phenotype was observed in 5 CK5+ TNBC tumors (45%) and in 7 out of 9 CK5- TNBC tumors (78%) (p = 0.02). The median Ki67 index in the VIM+/CDH1-/low tumors was 13.6 (range: 17.8-45.4) compared with 9.8 (range: 4.1-38.1) in other tumors (p = 0.0007). The presence of lymph nodemetastasis was less frequent in patients with VIM+/CDH1-/low tumors (23% versus 61%; X2 test; p = 0.01). Conclusion Our findings suggest that the expression of VIM and CDH1 can identify a subset of IDCs of the breast with a mesenchymal phenotype associated with poor prognosis, high-grade lesion, and high mitotic index.
DOI: 10.6084/m9.figshare.7677125.v1
title: SPME Fiber Evaluation for Volatile Organic Compounds Extraction from Acerola

description: Volatile organic compounds (VOCs) were isolated from acerola fruits (Malpighia emarginata D.C.), by means of different solid phase microextraction (SPME) fibers. For the extraction, the headspace SPME method was used, identifying the VOCs by gas chromatography (GC) with mass spectrometry (MS). The objective of this work was to evaluate the efficiency of SPME fibers and determine the best conditions for extracting VOCs from acerola fruit. The investigated conditions were: extraction time (20, 30 and 40 min), extraction temperature (25, 45 and 65 ºC) and agitation (0, 50 and 100 rpm). Of the evaluated fibers, polydimethylsiloxane (PDMS)/divinylbenzene (DVB) extracted the highest number of VOCs, most belonging to terpene, carboxylic acids and hydrocarbons. According to the investigated conditions, most compounds were obtained with an extraction time of 20 min, extraction temperature 65 ºC, and no agitation. Compounds cumene, o-xylene, thymol, m-cymene, o-cymene, 2-methyl-1,3-butadiene, anethol, 3-buten-2-one and methyl octadecanoic ester were responsible for the volatile profile of acerola.
DOI: 10.7284/122316
title: GNSS (Global Navigation Satellite System) data collected during research cruise BH15-01 using a Northstar 941X instrument system onboard the platform RV Blue Heron

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7677113
title: GAME THEORY AND 2x2 STRATEGIC GAMES APPLIED FOR MODELING OIL AND GAS INDUSTRY DECISION-MAKING PROBLEMS

description: ABSTRACT Oil and gas resources have been considered valuable assets, associated with potential conflicts due to distinct interests of many agents involved in their exploration, such as producing and consuming countries, governments and companies. These conflicts can show up under many situations and market conditions, such as partnerships, joint development, optimal outputs and reserve maximization. Game theory is known as a methodology that improves the decision-making processes by better understanding the players’ specific motivations, strategic interactions and payoff estimation. A widely used framework for modeling social and economic phenomena is the 2 x 2 strategic games, of which include classical forms such as Prisoner’s Dilemma, Stag Hunt, and Battle of Sexes. Therefore, this paper proposes to examine relevant realistic and real-world cases of the oil and gas industry in the form of 2 x 2 strategic games, aiming to investigate game theory approaches to aid in the discussion and resolution of the main dilemmas faced.
DOI: 10.6084/m9.figshare.7677122
title: Sexual Function of Women with Infertility

description: Abstract Objective To assess the sexual function, anxiety, and depression of infertile women relative to a control group. Methods Infertile women (infertile group, IG) of reproductive age were invited to participate in this controlled study. A control group (CG) of women was recruited from the general population of the same city. Sexual function was assessed by the Female Sexual Function Index (FSFI), and anxiety and depression were measured by the Hospital Anxiety and Depression Scale (HADS). Results A total of 280 women participated in the present study, 140 in the IG and 140 in the CG. The analysis of the FSFI scores showed that 47 women (33.57%) in the IG and 49 women (35%) in the CG had sexual dysfunction (FSFI ≤ 26.55; p = 0.90). Women with anxiety or depression had a greater risk of sexual dysfunction, and sexual dysfunction increased the risk of anxiety and depression. Married women had a lower risk of depression than single women who were living with their partners. Conclusion Infertilewomenhadno increased riskof sexual dysfunction relativetocontrols. Anxiety and depression increased the risk of sexual dysfunction in the studied population.
DOI: 10.6084/m9.figshare.7677113.v1
title: GAME THEORY AND 2x2 STRATEGIC GAMES APPLIED FOR MODELING OIL AND GAS INDUSTRY DECISION-MAKING PROBLEMS

description: ABSTRACT Oil and gas resources have been considered valuable assets, associated with potential conflicts due to distinct interests of many agents involved in their exploration, such as producing and consuming countries, governments and companies. These conflicts can show up under many situations and market conditions, such as partnerships, joint development, optimal outputs and reserve maximization. Game theory is known as a methodology that improves the decision-making processes by better understanding the players’ specific motivations, strategic interactions and payoff estimation. A widely used framework for modeling social and economic phenomena is the 2 x 2 strategic games, of which include classical forms such as Prisoner’s Dilemma, Stag Hunt, and Battle of Sexes. Therefore, this paper proposes to examine relevant realistic and real-world cases of the oil and gas industry in the form of 2 x 2 strategic games, aiming to investigate game theory approaches to aid in the discussion and resolution of the main dilemmas faced.