cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.10296239
title: Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers

description: ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p&lt;0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted feeding significantly inhibited ovary ER (Estrogen receptor), LEPR and MELR1B (Melatonin 1B receptor) gene expression at 14 wk, 18 wk and the first egg. At 14-week-old, abdominal fat LEPR gene expression was significantly lower in long photoperiod group compared with the short photoperiod group. At the first egg, short photoperiod and feed restriction group reduced abdominal fat LEPR gene expression. The results indicated that the reproductive activity of pullets is sensitive to feed intake and photoperiod. Feed restriction down regulated the ER, LEPR, MELR1A (Melatonin 1A receptor) and MELR1B mRNA expression of the ovary at 14 wk, 18wk and AFE. Long photoperiod enhanced the LEPR, MELR1A and MELR1B mRNA expression of abdominal fat at AFE.
DOI: 10.6084/m9.figshare.10296242
title: Different disclosure activities and sophisticated investors

description: ABSTRACT This article aims to verify what the influence is of different disclosure activities on the concentration of more sophisticated investors in Brazilian companies. The study fills a gap regarding the influence that disclosure activities can have on the concentration of sophisticated investors in Brazilian firms, considering that this may occur due to their ability to maximize the usefulness of the information disclosed and the return on investments, with a reduction in the cost of allocated funds. This subject is relevant because it verifies not the clientless effect of disclosure, presented by the only study previously developed on the subject in the United States (Kalay, 2015), but rather the influence that disclosure activities (earnings forecasts, market communications, and investor relations [IR]) have on the most sophisticated investors’ decisions to allocate funds in companies in the Brazilian market. As an impact on the area, it was noted that those companies that release market communications attract the investment of funds and the concentration of sophisticated investors much more than those that present better IR and release profit forecasts. We studied 89 publicly-traded companies whose reference forms were published in the period from 2011 to 2016. The number of institutional investors disclosed in the reference forms was used as a proxy to categorize them as more sophisticated. The different disclosure activities were represented by the disclosure of profit forecasts, the number of market communications, and the best IR. The best IR proxy was categorized using the companies awarded by IR Magazine Brazil that presented the best IR in the study period. The results of this study show that the most sophisticated investors concentrated in companies with better IR, in those that do not disclose profit forecasts, and in companies with a greater number of disclosed market communications. The disclosure of market communications is the disclosure activity that most influences the concentration of sophisticated investors in Brazilian companies that use more voluntary disclosure than discretionary disclosure to allocate their funds.
DOI: 10.6084/m9.figshare.10296245
title: Structural models for analysis of reinforced concrete frame buildings with masonry infills

description: Abstract The behavior of single-storey, single-bay reinforced concrete infilled frame with masonry panel subjected to static horizontal load was studied using two structural models: i) equivalent strut model (ESM) and ii) model with two-dimensional finite elements for state stress plane (MEF). In the first model, an equivalent diagonal strut replaces masonry. The axial stiffness of this element is defined by evaluation of the equivalent diagonal width. In the second model, the infilled frame is modeling by two-dimensional finite elements, requiring the simulation of the sliding and separation between the wall surfaces and the reinforced concrete frame. Although equivalent strut models are more attractive for design, the formulas found in the literature to determine equivalent strut width provide very different values. In addition, most of these formulas ignore some parameters that may be important, such as beam flexural stiffness. For this reason, several numerical analysis were be carried out. The models simulated usual geometric and mechanical characteristics observed in reinforced concrete buildings. The results of the two-dimensional finite element modeling (by software ANSYS) were used as reference for the evaluation of the results provided by the equivalent strut model. The comparison of results allowed the assessment of the analytical expressions for evaluation of the equivalent diagonal width. Based on this assessment, a new expression is proposed for buildings with similar characteristics as analyzed in this paper. The results of numerical simulations with MEF models also allowed for an evaluation of stresses and the probable cracking pattern in infill walls.
DOI: 10.6084/m9.figshare.10296251.v1
title: Lytic bacteriophages as a potential alternative to control Staphylococcus aureus

description: Abstract: The objective of this work was to characterize autochthonous bacteriophages and to determine their lytic activity on Staphylococcus aureus. Six phages were isolated from dairy barn flush water through enrichment cultures with three S. aureus strains. All phages were characterized by DNA digestion by restriction enzymes and sequencing of the DNA fragment encoding endolysin. Each phage was tested against 100 S. aureus strains isolated from bovine mastitis and from dairy products using the lysis-plate method. The sequences of the endolysin gene were highly conserved, with nucleotide similarity higher than 99% among the isolated phages. Three domains involved in the recognition and lysis of the bacterial cell wall were identified. Two bacteriophages isolated from the dairy barns present high lytic activity on S. aureus, on a wide range of host strains, indicating their potential for studies on phage therapy in dairy cattle or as a biological control agent for dairy products.
DOI: 10.6084/m9.figshare.10296242.v1
title: Different disclosure activities and sophisticated investors

description: ABSTRACT This article aims to verify what the influence is of different disclosure activities on the concentration of more sophisticated investors in Brazilian companies. The study fills a gap regarding the influence that disclosure activities can have on the concentration of sophisticated investors in Brazilian firms, considering that this may occur due to their ability to maximize the usefulness of the information disclosed and the return on investments, with a reduction in the cost of allocated funds. This subject is relevant because it verifies not the clientless effect of disclosure, presented by the only study previously developed on the subject in the United States (Kalay, 2015), but rather the influence that disclosure activities (earnings forecasts, market communications, and investor relations [IR]) have on the most sophisticated investors’ decisions to allocate funds in companies in the Brazilian market. As an impact on the area, it was noted that those companies that release market communications attract the investment of funds and the concentration of sophisticated investors much more than those that present better IR and release profit forecasts. We studied 89 publicly-traded companies whose reference forms were published in the period from 2011 to 2016. The number of institutional investors disclosed in the reference forms was used as a proxy to categorize them as more sophisticated. The different disclosure activities were represented by the disclosure of profit forecasts, the number of market communications, and the best IR. The best IR proxy was categorized using the companies awarded by IR Magazine Brazil that presented the best IR in the study period. The results of this study show that the most sophisticated investors concentrated in companies with better IR, in those that do not disclose profit forecasts, and in companies with a greater number of disclosed market communications. The disclosure of market communications is the disclosure activity that most influences the concentration of sophisticated investors in Brazilian companies that use more voluntary disclosure than discretionary disclosure to allocate their funds.
DOI: 10.6084/m9.figshare.10296236
title: Improvement of fertility parameters with Tribulus Terrestris and Anacyclus Pyrethrum treatment in male rats

description: ABSTRACT Objective Anacyclus Pyrethrum (AP) and Tribulus Terrestris (TT) have been reported as male infertility treatment in several studies; however, in Iranian traditional medicine these two plants are prescribed simultaneously. In this study, we aimed to determine the effects of AP and TT extracts both separately and simultaneously on the male Wistar rat fertility parameters. Materials and Methods 32 male Wistar rats were divided into 4 groups: Control, TT, AP, and AT treated groups. Treatment continued for 25 days and rats were weighed daily. Their testes were dissected for histological studies. Sperm analysis including sperm count, viability and motility were performed. Serum was obtained to evaluate testosterone, LH and FSH levels. Histological studies were conducted to study Leydig, and Sertoli cells, spermatogonia and spermatid cell numbers, and to measure seminiferous diameter and epithelium thickness. Results Sperm count increased in all the treatment groups. Sperm viability and motility in AT and AP groups were elevated. TT and AT groups showed significantly increased testosterone level compared to control group (P=004, P=0.000, respectively) and TT, AP and AT treatment groups showed increased LH level (P=0.002, P=0.03 and P=0.000, respectively) compared to control, while only AT group showed increased FSH (p=0.006) compared to control. Histological studies showed significant increase of spermatogonia, Leydig and Sertoli cell numbers and epithelial thickness in AT group compared to other groups. All the treatment groups had higher number of Leydig, spermatogonia and spermatid cells. Conclusion TT and AP improved sexual parameters; however, their simultaneous administration had higher improving effects on studied parameters.
DOI: 10.6084/m9.figshare.10296239.v1
title: Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers

description: ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p&lt;0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted feeding significantly inhibited ovary ER (Estrogen receptor), LEPR and MELR1B (Melatonin 1B receptor) gene expression at 14 wk, 18 wk and the first egg. At 14-week-old, abdominal fat LEPR gene expression was significantly lower in long photoperiod group compared with the short photoperiod group. At the first egg, short photoperiod and feed restriction group reduced abdominal fat LEPR gene expression. The results indicated that the reproductive activity of pullets is sensitive to feed intake and photoperiod. Feed restriction down regulated the ER, LEPR, MELR1A (Melatonin 1A receptor) and MELR1B mRNA expression of the ovary at 14 wk, 18wk and AFE. Long photoperiod enhanced the LEPR, MELR1A and MELR1B mRNA expression of abdominal fat at AFE.
DOI: 10.6084/m9.figshare.10296245.v1
title: Structural models for analysis of reinforced concrete frame buildings with masonry infills

description: Abstract The behavior of single-storey, single-bay reinforced concrete infilled frame with masonry panel subjected to static horizontal load was studied using two structural models: i) equivalent strut model (ESM) and ii) model with two-dimensional finite elements for state stress plane (MEF). In the first model, an equivalent diagonal strut replaces masonry. The axial stiffness of this element is defined by evaluation of the equivalent diagonal width. In the second model, the infilled frame is modeling by two-dimensional finite elements, requiring the simulation of the sliding and separation between the wall surfaces and the reinforced concrete frame. Although equivalent strut models are more attractive for design, the formulas found in the literature to determine equivalent strut width provide very different values. In addition, most of these formulas ignore some parameters that may be important, such as beam flexural stiffness. For this reason, several numerical analysis were be carried out. The models simulated usual geometric and mechanical characteristics observed in reinforced concrete buildings. The results of the two-dimensional finite element modeling (by software ANSYS) were used as reference for the evaluation of the results provided by the equivalent strut model. The comparison of results allowed the assessment of the analytical expressions for evaluation of the equivalent diagonal width. Based on this assessment, a new expression is proposed for buildings with similar characteristics as analyzed in this paper. The results of numerical simulations with MEF models also allowed for an evaluation of stresses and the probable cracking pattern in infill walls.
DOI: 10.6084/m9.figshare.10296233
title: Bolsa Família, time spent in school and students’ motivations

description: Abstract This article studies the impact of the Bolsa Família Program (BFP) on time spent in school, its components (enrollment, attendance, and school journey), and on the reasons students dropout or show low-attendance. The research uses data from the National Household Sample Survey (PNAD) for the years 2004 and 2006. During this period, the BFP coverage expanded by 67% enabling to test the dosage-effects of the program. The tests could not refute the hypothesis related to the impact of the BFP on time spent in school, and any of its components. Another identification strategy used shows that teenagers marginally eligible to BFP were 62% more likely to be enrolled at school, 8% more likely to comply with the attendance conditionality, and 6% more likely to study more than 4 hours per day. Finally, tests on the alleged reasons leading beneficiaries to fail in complying with the BFP conditions could not reject the existence of an effect of current income relief related to the program.
DOI: 10.6084/m9.figshare.10296227
title: Evaluation of surgery and surgical results of Baha® Attract system implantations - single centre experience of hundred twenty five cases

description: Abstract Introduction: Bone-anchored hearing aids are currently well-established solutions for treatment of hearing-impaired patients. Objective: To evaluate the surgery of the Baha® Attract system, healing process and soft tissue condition after the processor activation. Methods: 125 patients implanted with the Baha® Attract system during a 3 year period in a single ENT department were analysed. Evaluated parameters comprised: details of surgery, healing process and soft tissue condition at the time of the processor activation and on subsequent follow-up visits. Results: The implantation was conducted under local anaesthesia in 96% of patients. The mean surgery time was 42 min. Soft tissue reduction was performed in 43.2% of cases; bone polishing in 23.2% and bipolar coagulation in all the cases. Healing was uneventful in 92.8%. 10 days after the surgery, pain was reported in 48% of cases. On subsequent follow-up visits, 1 month and 3 months after the surgery, pain was present in 18.4% and 2.4% of cases respectively. Similarly, numbness and paresthesia, initially reported in 84% and 15.2%, were present in 60% and 11.2% after a month, and in 17.6% and 1.6% after three months. After the processor attachment, no serious problems were observed in the analysed group during follow-up visits. However, mild redness and/or mild pain over the magnet were observed in 9.6% of patients. Conclusion: Implantation of the Baha® Attract system is an easy and safe procedure. It can be performed under local anaesthesia in adults. There are no major surgical problems or complications, and the healing process proceeds efficiently in most patients. Postoperative pain is usually mild and gradually decreases in the following months. Numbness in the operated area is frequent, but as reinnervation occurs in time, the numb patch decreases in size and finally completely disappears in most cases.
DOI: 10.6084/m9.figshare.10296233.v1
title: Bolsa Família, time spent in school and students’ motivations

description: Abstract This article studies the impact of the Bolsa Família Program (BFP) on time spent in school, its components (enrollment, attendance, and school journey), and on the reasons students dropout or show low-attendance. The research uses data from the National Household Sample Survey (PNAD) for the years 2004 and 2006. During this period, the BFP coverage expanded by 67% enabling to test the dosage-effects of the program. The tests could not refute the hypothesis related to the impact of the BFP on time spent in school, and any of its components. Another identification strategy used shows that teenagers marginally eligible to BFP were 62% more likely to be enrolled at school, 8% more likely to comply with the attendance conditionality, and 6% more likely to study more than 4 hours per day. Finally, tests on the alleged reasons leading beneficiaries to fail in complying with the BFP conditions could not reject the existence of an effect of current income relief related to the program.
DOI: 10.6084/m9.figshare.10296227.v1
title: Evaluation of surgery and surgical results of Baha® Attract system implantations - single centre experience of hundred twenty five cases

description: Abstract Introduction: Bone-anchored hearing aids are currently well-established solutions for treatment of hearing-impaired patients. Objective: To evaluate the surgery of the Baha® Attract system, healing process and soft tissue condition after the processor activation. Methods: 125 patients implanted with the Baha® Attract system during a 3 year period in a single ENT department were analysed. Evaluated parameters comprised: details of surgery, healing process and soft tissue condition at the time of the processor activation and on subsequent follow-up visits. Results: The implantation was conducted under local anaesthesia in 96% of patients. The mean surgery time was 42 min. Soft tissue reduction was performed in 43.2% of cases; bone polishing in 23.2% and bipolar coagulation in all the cases. Healing was uneventful in 92.8%. 10 days after the surgery, pain was reported in 48% of cases. On subsequent follow-up visits, 1 month and 3 months after the surgery, pain was present in 18.4% and 2.4% of cases respectively. Similarly, numbness and paresthesia, initially reported in 84% and 15.2%, were present in 60% and 11.2% after a month, and in 17.6% and 1.6% after three months. After the processor attachment, no serious problems were observed in the analysed group during follow-up visits. However, mild redness and/or mild pain over the magnet were observed in 9.6% of patients. Conclusion: Implantation of the Baha® Attract system is an easy and safe procedure. It can be performed under local anaesthesia in adults. There are no major surgical problems or complications, and the healing process proceeds efficiently in most patients. Postoperative pain is usually mild and gradually decreases in the following months. Numbness in the operated area is frequent, but as reinnervation occurs in time, the numb patch decreases in size and finally completely disappears in most cases.
DOI: 10.6084/m9.figshare.10296236.v1
title: Improvement of fertility parameters with Tribulus Terrestris and Anacyclus Pyrethrum treatment in male rats

description: ABSTRACT Objective Anacyclus Pyrethrum (AP) and Tribulus Terrestris (TT) have been reported as male infertility treatment in several studies; however, in Iranian traditional medicine these two plants are prescribed simultaneously. In this study, we aimed to determine the effects of AP and TT extracts both separately and simultaneously on the male Wistar rat fertility parameters. Materials and Methods 32 male Wistar rats were divided into 4 groups: Control, TT, AP, and AT treated groups. Treatment continued for 25 days and rats were weighed daily. Their testes were dissected for histological studies. Sperm analysis including sperm count, viability and motility were performed. Serum was obtained to evaluate testosterone, LH and FSH levels. Histological studies were conducted to study Leydig, and Sertoli cells, spermatogonia and spermatid cell numbers, and to measure seminiferous diameter and epithelium thickness. Results Sperm count increased in all the treatment groups. Sperm viability and motility in AT and AP groups were elevated. TT and AT groups showed significantly increased testosterone level compared to control group (P=004, P=0.000, respectively) and TT, AP and AT treatment groups showed increased LH level (P=0.002, P=0.03 and P=0.000, respectively) compared to control, while only AT group showed increased FSH (p=0.006) compared to control. Histological studies showed significant increase of spermatogonia, Leydig and Sertoli cell numbers and epithelial thickness in AT group compared to other groups. All the treatment groups had higher number of Leydig, spermatogonia and spermatid cells. Conclusion TT and AP improved sexual parameters; however, their simultaneous administration had higher improving effects on studied parameters.
DOI: 10.6084/m9.figshare.10296221
title: AVOIDING INFINITE REGRESS: POSTERIOR ANALYTICS I 22

description: Abstract This article offers a reconstruction of an argument against infinite regress formulated by Aristotle in Posterior Analytics I 22. I argue against the traditional interpretation of the chapter, according to which singular terms and summa genera, in virtue of having restrict logical roles, provide limits for predicative chains, preventing them from proceeding ad infinitum. As I intend to show, this traditional reading is at odds with some important aspects of Aristotle’s theory of demonstration. More importantly, it fails to explain how his proof is connected to a defence of the existence of ultimate explanations, a connection that must be the case if I 19-22 is advancing a foundationalist way-out to a sceptical challenge raised in I 3.