Dyspeptic syndrome and infection by Helicobacter pylori exhibit histopathologic correlation when observed in adolescents

ABSTRACT Objective: Chronic gastritis is a histological entity and is primarily associated with Helicobacter pylori infection. The main reason for controversy is the lack of correlation between dyspeptic symptoms and histopathologic changes. The purpose of this study was to compare histological findings with dyspeptic symptoms in adolescents. Methods: Adolescents aged 10 to 19 years old with dyspeptic symptoms were referred to upper endoscopy. A protocol was systematically submitted to all patients prior to endoscopy. Histopathologic examination was performed on biopsy specimens. H. pylori infection was detected by rapid urease test and histology. Results: A total of 162 consecutive outpatients with dyspeptic complaints and indication for endoscopy were entered in the database of this study. The mean age of the sample was 16 years old; There were 120 females (74%) and 42 males (26%). Helicobacter pylori were present in 123 patients (75.9%) with a Pearson’s coefficient of 0.7 (infection versus symptoms). The frequency of gastritis in the antrum and incisura angularis was significantly higher in subjects who had epigastric pain (p=0,004). Superficial gastritis was 2 times more frequent among subjects who had epigastric pain than those who do not presented (p=0,012).  Severe gastritis was significantly more frequent among those who had epigastric pain (p=0,016). There was no correlation between gastritis and other dyspeptic symptoms. Conclusion: This study shows that there is a correlation between epigastric pain and superficial gastritis of greater intensity and infection by H. pylori. There is no correlation between epigastric pain and intestinal metaplasia in adolescents. Gastritis of the antrum and incisura angularis showed a correlation to regurgitation. Gastritis was not associated to other dyspeptic symptoms.Â

Analysis of the Energetic and Productive Effects Derived by the Installation of a Conveyor Belt in the Metal-mechanic Industry

Energy efficiency is a topic of interest due to the financial decisions that involve; high costs must be avoided and regulated by means of strategic decision with low-cost invest. The research presents an operational improvement in the production chain of metal parts in a metal-mechanic micro-enterprise by means of the installation of a conveyor belt, a comparison is made between the energy consumption of the previous system and the system with the conveyor belt, and the results present improvements in execution times, production and energy consumption per number of manufactured parts. Keywords: Energy efficiency, Metal-mechanic industry, Conveyer belt JEL Classifications: L61, Q41 DOI: https://doi.org/10.32479/ijeep.706

ECAL Front-End Monitoring in the CMS experiment

The CMS detector at LHC is equipped with a high precision lead tungstate crystal electromagnetic calorimeter (ECAL). The front-end boards and the photodetectors are monitored using a network of DCU (Detector Control Unit) chips located on the detector electronics. The DCU data are accessible through token rings controlled by an XDAQ based software component. Relevant parameters are transferred to DCS (Detector Control System) and stored into the Condition DataBase. The operational experience from the ECAL commissioning at the CMS experimental cavern is discussed and summarized

Aging impairs deliberation and behavioral flexibility in inter-temporal choice

Inter-temporal choice depends on multiple, interacting systems, some of which may be compromised with age. Some of these systems may be responsible for ongoing trial-by-trial choice strategies. Some may represent the consequences of action. Some may be necessary for the coupling between anticipated consequences and strategies currently in use, flexibly guiding behavior. When faced with a difficult decision, rats will orient back and forth, a behavior termed ``vicarious trial and error'' (VTE). Recent experiments have linked the occurrence of VTE to hippocampal search processes and behavioral flexibility. We tested 5 month (n=6), 9 month (n=8) and over-27 month-old (n=10) rats on a Spatial Adjusting Delay Discounting task to examine how aging impacted lap-by-lap strategies and VTE during inter-temporal choice. Rats chose between spatially separated food goals that provided a smaller-sooner or larger-later reward. On each lap, the delay to the larger-later reward was adjusted as a function of the rat's decisions, increasing by 1 second after delayed-side choices and decreasing by 1 second after non-delayed side choices. The strategies that aged rats used differed from those used in young and adult rats. Moreover, aged rats produced reliably more VTE behaviors, for protracted periods of time, uncoupled from behavioral flexibility

Neritic isotope and sedimentary records of the Eocene-Oligocene greenhouse-icehouse transition: The Calcare di Nago Formation (northern Italy) in a global context

From the Middle Eocene to Early Oligocene, the Earth experienced the most significant climatic cooling of the Cenozoic era. The Eocene-Oligocene transition (EOT) represents the culmination of this climatic cooling, leading to the onset of the Antarctic glaciation and, consequently, to the beginning of the present-day icehouse world. Whereas the response of deep-sea systems to this climate transition has been widely studied, its impact on the shallow-water carbonate realm is poorly constrained. Here, the sedimentary expression of the EOT in two shallow-marine carbonate successions (Nago and San Valentino, northern Italy) belonging to the Calcare di Nago Formation is presented. The chronostratigraphic framework was constructed by integrating litho-, bio-, and isotope-stratigraphic data (C and Sr isotopes), allowing to correlate these shallow-marine successions with pelagic sections in central Italy (Massignano), Tanzania (TDP Sites 12 and 17), and the Indian Ocean (ODP Site 744). Within several sections in northern Italy, including Nago and San Valentino, a Priabonian (Late Eocene) transgression is recorded. Oxygen isotopes of ODP Site 744 show a coeval negative shift of 0.4, suggesting a glacio-eustatic origin for this transgression. In the Nago and San Valentino sections, no prominent sequence boundary has been detected that would indicate a rapid sea-level drop occurring together with the positive shift in δ18O defining the EOT-1 cooling event. Instead, a gradual shallowing of the depositional environment is observed. At TDP Sites 12 and 17, the EOT-1 is followed by a negative shift in δ18O of around 0.4, which correlates with a relative deepening of the environment in the studied sections and suggests a melting pulse between EOT-1 and the Oligocene isotope event 1 (Oi-1). The positive δ18O shift related to the Oi-1 translates in San Valentino into a change in carbonate factory from a photozoan association dominated by larger benthic foraminifera, corals, and red algae to a heterozoan association dominated by bryozoans. The same bryozoan facies occurs in several Italian localities near the Eocene-Oligocene boundary. This facies is interpreted to represent an analogue of modern cool-water carbonates and results from a cooling pulse of at least regional scale, associated to the Oi-1 event. © 2012

Factores asociados al ataque cerebrovascular isquémico entre los años 2013 a 2016: estudio de casos y controles

Resumen: Objetivo: Determinar los factores asociados al ataque cerebrovascular isquémico en el servicio de urgencias de la Clínica Especializada Los Andes, de la ciudad de Tunja, entre los años 2013 a 2016. Pacientes y métodos: Estudio de casos y controles; los casos correspondieron a 97 pacientes con ataque cerebrovascular isquémico (infarto cerebral isquémico y accidente isquémico transitorio) y los controles a 291 pacientes sin ataque cerebrovascular isquémico que ingresaron a urgencias entre los años 2013 a 2016. Resultados: El sexo femenino correspondió al 56,7% (55) de los casos y al 54,6% de los controles (154) (p = 0,069). La media de edad en el grupo caso fue de 73,7 años [DE: 10,5 años] y en los controles de 64,5 años [DE: 11,3 años]. Los factores asociados al ataque cerebrovascular isquémico fueron: antecedente de ataque cerebrovascular isquémico [OR 7,7 IC 95% 3,2; 18 p= 0,000], tabaquismo [OR 4,4 IC 95% 1,1; 18 p= 0,022], dislipidemia [OR 3 IC 95% 1,2; 7,5 p= 0,017], edad igual o mayor a 70 años [OR 2,3 IC 95% 1,3; 4,1 p= 0,002] e hipertensión arterial [OR 1,8 IC 95% 1,06; 3,3 p= 0,029]. Conclusiones: Los factores asociados al ataque cerebrovascular isquémico fueron, en orden de importancia, antecedente de ataque cerebrovascular isquémico, tabaquismo, dislipidemia, edad igual o mayor a 70 años e hipertensión arterial. Abstract: Objective: To determine the factors associated with ischaemic cerebrovascular accidents (ICVA) in the Emergency Department of the Andes Specialist Clinic of the city of Tunja, between the years 2013 and 2016. Patients and methods: A case-control study was conducted in which the cases consisted of 97 patients with ICVA (ischaemic cerebral infarction and transient ischaemic accident), and the controls were 291 patients with no ICVA, who were admitted to the Emergency Department between the years 2013 and 2016. Results: There were 56.7% (55) females in the cases, and 54.6% (154) in the controls (P=.069). The mean age of the cases was 73.7 years [SD: 10.5 years], and 64.5 years [SD: 11.3 years] in the controls. The factors associated with ICVA were: a history of ICVA [OR; 7.7, 95% CI; 3.2â18, P=.000], smoking [OR; 4.4, 95% CI; 1.1â18, P=.022], dyslipidaemia [OR; 3, 95% CI; 1.2â7.5, P=.017], age equal to or greater than 70 years [OR; 2.3, 95% CI; 1.3â4.1, P=.002], and arterial hypertension [OR; 1.8, 95% CI; 1.06â3.3, P=.029]. Conclusions: The factors associated with ischaemic cerebrovascular accident were, in order of importance, a history of ischaemic cerebrovascular accident, smoking, dyslipidaemia, age equal to or greater than 70 years, and arterial hypertension. Palabras clave: Circulación cerebrovascular, Cerebro, Factores de riesgo, Keywords: Cerebrovascular circulation, Brain, Risk factor

Uso de leitos cultivados de vazão subsuperficial na remoção de macronutrientes de efluentes de tanques de piscicultura

Visando avaliar o desempenho de leitos cultivados na remoção de macronutrientes presentes em águas de escoamento de tanques de piscicultura, foi instalado um experimento em caixas de cimento-amianto, preenchidas com brita n.º 3, onde foram cultivadas macrófitas aquáticas emergentes conhecidas como Taboa (Typha spp.) em sistema de monocultivo. Foram mensuradas durante a avaliação as remoções de Nitrogênio, Fósforo, Enxofre, Cálcio, Potássio e Magnésio. Durante a fase experimental obteve-se os seguintes valores: Nitrogênio Total, remoção média de 36,15%, Fósforo Total remoção média de 43,30%, Enxofre remoção média de 28,20%, Potássio remoção média de 31,61% e a remoção média de Magnésio foi de 16,20%. Os resultados obtidos permitiram concluir que: a) o desempenho do sistema na remoção de Nitrogênio Total foi inferior às obtidas por outros autores, os quais trataram efluentes de esgoto doméstico e de suinocultura; b) a remoção de Fósforo Total pode ser considerada satisfatória quando comparada a outros trabalhos que utilizaram os leitos cultivados como forma de tratamento de efluentes; c) foi baixo o desempenho do sistema na remoção de Enxofre, Cálcio, Magnésio e Potássio. Palavras chave: Typha spp., leitos cultivados, piscicultura. ABSTRACT The objective of this study was to evaluate the performance of a subsurface flow constructed wetland onthe removal of fish water macronutrients, a experiment was carried out at cimento-amianto box cultivated with Thypha spp on monocultive system. The parameters evaluated were: Nitrogen removal, Phosphors removal, Sulfur removal, Calcium removal, Potassium removal and Magnesium removal. The results showed 36,15% of Nitrogen removal, 43,30% of Phosphors removal, 28,20% of Sulfur removal, 26,30% of Calcium removal, 31,61% of Potassium removal and 16,20% of Magnesium removal. As conclusions, the performance of the system on Nitrogen total removal was smaller whem comparated with other autors; the phosphorous removal was considered satisfactory and the performance of the system on Sulfur, Calcium, Magnesium and Potassium removal was low. Key Words: Typha spp., wastewater treatment, constructed wetland, fish water

Effect of age on semen characteristics in Morada Nova rams

One of the main characteristics to evaluate in selective breeding is semen quality. However, factors related to the animal itself, such as age, and the environment can influence reproductive traits. Good semen quality assures a faster return on investment in sheep farming by allowing better selection of males used as breeding stock to enhance reproductive efficiency of the herd, since males with good sexual performance and high fertility probably will beget a greater number of ewes in a shorter period of time. This study aimed to evaluate the effect of age on the semen quality of rams of the Morada Nova breed. The experiment was conducted at the Instituto de Zootecnia de Nova Odessa in São Paulo state, Brazil, in the period from March to May 2014. Twenty-four rams were used for monthly evaluation, with ages of 18±2 (n = 12) and 30±2 months (n = 12). The ejaculate from each animal was collected with an artificial vagina with the aid of a female in estrus, for further evaluation as to the volume, aspect, whirling, motility and sperm vigor. Then the sperm concentration and morphology were determined in wet slides. Means were compared by the t-test and chi-square test using the SAS software (SAS Inst., Inc., Cary, NC). There was no difference (P>0.05) for volume, concentration/mL, total concentration, coiled tails, decapitation and distal protoplasmic droplets. The variables whirling, vigor, motility, proximal protoplasmic droplets and piriform heads were different with regard to age (P<0.05). The younger rams produced spermatozoa with rates of curled tails, minor defects and total defects, respectively, of 8%, 8.66% and 6.14% higher than the older rams (P<0.05). Therefore, ram age may influence semen characteristics

Effect of vitamin and supplementation on color of lamb meat

Color is the first factor that consumers consider when it comes to meat quality, linking it to freshness. The most common function of vitamin E (tocopherol α-), is its ability to act as an antioxidant in biological systems. The free radicals are neutralized by α-tocopherol before lipid oxidation is propagated between the cellular and subcellular membranes of highly unsaturated fatty acids. The antioxidants in meat have the function to delay the onset of oxidation phenomena, retaining the sensory characteristics. They are added to the foods to preserve their color characteristics, avoiding the appearance of anomalous odors. The aim of this study was to evaluate the color of the meat of Santa Inês-bred lambs, supplemented with Vitamin E. Thirty two Santa Inês-bred lambs were divided into 2 groups: S (supplementation with Vitamin E) and NS (not supplemented with Vitamin E). The animals were fed an isoproteic diet formulated to meet the requirement of 250-300 g/day. The S group was fed a diet containing 350 mg/kg ppm of Vitamin E per day, added to the concentrate. After the slaughtering, the muscle Longissimus dorsi was separated for the evaluation of the color with the aid of a colorimeter (Minolta) in the CIELAB system, which assessed the parameters: L (brightness), a (red content) and b (level of yellow). The values L, a, and b were obtained in three separate surface points in the muscle to obtain the average between the values. The experimental design was completely randomized, and means were compared by Tukey test at 5% probability using the GLM procedure (SAS Inst., Inc., Cary, NC). The meat color (Table 1) was not different between treatments (P<0.05). This lack of difference between treatments may have occurred, because the measurements were realized with fresh meat, and there was not enough time for oxidative processes to occur. Thus, the supplementation with Vitamin E did not affect the meat color of Santa Inês-bred lambs