bluuebunny/crossref_metadata_2025_split huggingface dataset:
Comparación de genotipos de frijol negro opaco en suelos ácidos del sur de Veracruz
Authors: Tosquy-Valle Oscar Hugo , Zetina-Lezama Rigoberto , López-Salinas Ernesto , Ibarra-Pérez Francisco Javier , Villar-Sánchez Bernardo , Rodríguez-Rodríguez José Raúl 
Published: March 2020

In southern Veracruz, Mexico, soil acidity is one of the main environmental factors that reduce the production yield of common bean. The objectives of this research were to identify outstanding opaque black bean breeding lines according to their level of adaptation to acid soils and high yield eff iciency with and without the addition of dolomite into the soil, as well as to determine which is the yield component that associates the most to a greater production of beans. During the Fall/Winter season of 2016-17 two trials were performed in Juan Rodríguez Clara, Veracruz, in a land with a soil of initial pH = 4.67. One trial was conducted under stress conditions by soil acidity and the other with 2.58 Mg ha-1 of dolomite, applied to the soil 27 d before sowing. Twelve black bean breeding lines were evaluated and compared to Negro Grijalva and Negro Comapa bean varieties. All beans were arranged in a randomized complete block design with three replicates. The variables measured were dry matter production without grain, weight of 100 seeds, number of pods per plant and grain yield. An analysis of variance of the quantif ied variables and the least signif icant difference (LSD, 0.05) tests for separation of means were performed. Negro Citlali/XRAV-187-3-1-8 showed the best adaptation to acid soil conditions in southern Veracruz, which obtained yields of 911.0 and 706.3 kg ha-1 with and without dolomite, respectively. These values were signif icantly higher than the commercial beans. This breeding line also showed the highest productive eff iciency, since it obtained the highest geometric mean (MGi) values (802.1) and a relative eff iciency index (IERi) of 2.00. Under both conditions of edaphic acidity, the number of pods per plant was the only plant trait that was positively related to seed yield (r = 0.91 ** and 0.87 **, with and without dolomite).
Efecto de la aplicación de bioestimulantes sobre la calidad y capacidad antioxidante de frutos de calabacita (Cucurbita pepo L. var. ‘Grey Zucchini’)
Authors: Soriano-Melgar Lluvia de Abril Alexandra , Izquierdo-Oviedo Humberto , Saucedo-Espinosa Yvette Alessandra , Cárdenas-Flores Antonio 
Published: March 2020

Nowadays, agricultural research has not been only focused on studying the effect of different treatments on plant development and yield, but it has also been involved on study their effect on the postharvest quality of products. This study was conducted to determine the treatment effect based on plant growth-promoting rhizobacteria (Azotobacter chroococcum), alone or combined with different oligosaccharins of pectic origin (Pectimorf®) or derivatives of chitosan (Quitomax®), on the postharvest quality of zucchini fruits (Cucurbita pepo L.) var. 'Grey Zucchini'. Physical characteristics (polar and equatorial diameter, weight, dry biomass, f irmness, and color) and chemical characteristics (pH, total soluble solids, treatable acidity and vitamin C), proteins, antioxidant enzymatic activities (superoxide dismutase, catalase and total peroxidase), polyphenol oxidase activity, and antioxidant content (phenolic compounds and antioxidant capacity) were evaluated. Results showed significant differences (P ≤ 0.05) between control and treatments in most of the parameters evaluated, such as: color, length (up to 15.88%), width (up to 16.25%), weight (up to 57.31%), dry biomass (up to 34.43%), pH (down to 9.72%), vitamin C (up to 162.6%) and protein content (up to 22.38%), and total antioxidant capacity (down to 18.72%). Therefore, plant treatments improved the quality and composition of postharvest fruits, which accentuates the importance of organic treatments during the development of plants to obtain fruits with better organoleptic characteristics.
The Porosity of Stabilized Earth Blocks with the Addition Plant Fibers of the Date Palm
Authors: Idder Abdelghani , Hamouine Abdelmadjid , Labbaci Boudjemaa , Abdeldjebar Rabia 
Published: March 2020

This work is an experimental study to analyze the physical behavior of Stabilized Earth Block (SEB) and reinforced with Plant Fibers of the Date Palm (PFDP). This is part of the valorization of local building materials (earth, fiber) and contributes to reduce the price of housing. Initially, physical tests (Density, Total Water Absorption, and Capillary Absorption) were carried out in preparation for the porosity study. However, the main objective of this study is the investigation of porosity phenomenon using several methods as well as the total porosity estimation, the total volume porosity in water and Open porosity methods, where the mechanical resistance is also considered. In order to improve the stabilized earth block porosity analyses, various dosages are proposed for cement, lime and fiber. Thus (0%, 5%, 10%) of cement, (0%, 5%, 10%) of lime and the combination (5% cement + 5% lime) with (0%, 0.25%, and 0.5%) of fibers for each composition. The experimental results showed that the addition of fibers increases the porosity of the stabilized earth block proportionally and an increasing quantity of the stabilizer reduces the porosity of the SEB, cement is also more effective at closing pores than lime. Moreover, the compositions 10% cement and the mixture of 5% cement + 5% lime with 0% fiber showed a good results of porosity, for this reason they can be used as a durable building material and good resistance to natural and chemical aggression.
STUDY OF INTERFACE BETWEEN GLASS AND STEEL FOR CORROSION RESISTANCE APPLICATION
Authors: Singh Dr. Surendra Kumar 
Published: March 2020

A protective glass- based coating of N-15 and N-25 glass was deposited on the Crofer steel by slurry method and its effect on 7500C-8500C has been studied. Oxidation behavior of steel at high temperature of 12500C was also investigated. Interface study of N-25 glass &Crofer steel and N-15 glass &Crofer steel has been done and found that coating of N-15 glass on the steel is more smooth and effective to prevent the surface of steel from corrosion.Structural study of different type of glass has also been done. Bare steel sample as well as coated steel sample was taken for the study of their isothermal oxidation which shows that the glass coating could prevent the corrosion and improve the quality of steel surface for practical application.This corrosion resistant effect takes place because a thin layer of molten glass is formed on the surface of steel at high temperature. This layer then acts as a diffusion barrier. This coating of glass and steel is cost effective, hence have wide application in many infrastructural construction where corrosion is a big challenge. It is also very useful in marine conditions where steel is most likely to be corroded be sea water.
Pengaruh Model Pembelajaran Coneccting, Organizing, Reflecting, Extending (CORE) Terhadap Pemahaman Konsep Fisika Dan Kemampuan Berpikir Kritis
Authors: Murniati Murniati , Ayub Syahrial , Sahidu Hairunisyah 
Published: March 2020

Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran Connecting, Organizing, Reflecting, Extending (CORE) terhadap pemahaman konsep fisika dan kemampuan berpikir kritis peserta didik SMAN 1 Labuhan Haji.ÃÂ Jenis penelitian quasi experiment dengan desain penelitian non-equivalent control group design. Populasinya seluruh peserta didik kelas XI IPA SMAN 1 Labuhan Haji Tahun Pelajaran 2019/2020 yangÃÂ berjumlah 157 orang dengan teknik pengambilan sampel purposive sampling. Terdapat dua sampel yang diambil yaitu peserta didik kelas XI IPA 3 sebagai kelas eksperimen yang diberikan perlakuan berupa model pembelajaran CORE dan peserta didik kelas XI IPA 4 sebagai kelas kontrol yang diberikan perlakukan pembelajaran konvensional. Jenis tes yang digunakan yaitu pilihan ganda sebanyak 15 item soal untuk pemahaman konsep dan soal essay sebanyak 5 item untuk kemampuan berpikir kritis. Uji hipotesis menggunakan uji MANOVA. Hasil uji hipotesis menunjukkan signifikan 0,024 sehingga H0 ditolak dan Ha diterima. Kesimpulannya terdapat pengaruh model pembelajaran CORE terhadap pemahaman konsep fisika dan kemampuan berpikir kritis peserta didik SMAN 1 Labuhan Haji.
P5 Aortic Volume Wave Velocity (VWV) in Chronic Heart Failure (CHF) Measured During the 12 Channel Routine ECG by Impedance Plethysmography Relates Negatively to Appendicular Muscle Mass (AppMM)
Authors: Skrabal Falko , Boyer Johannes , Ehsas Hasib , Skrabal Katharina 
Published: March 2020

Abstract
Introduction
Pulse wave velocity or (or VWV) may relate to muscle mass and body fat. We have included measurements for the above in the routine 12 channel ECG.

Methods
A 12 channel ECG supplies impedance plethysmographic measurements at the four extremities at 40 kHz [1]. From these VWW was derived in analogy to carotid femoral PWV. Impedance measurements at 5, 40 and 400 kHz in six body segments are also provided [2]. From these AppMM and body fat were measured in 123 participants without diabetes and CHF and in 72 patients with CHF (NYHA class 2 to 4).

Results
In multiple backward stepwise regression analysis VWV was related positively to age, standardized systolic blood pressure [3] and negatively to AppMM index (total r = 0.83, p < 0.001) but not to body fat.

Discussion
The relation between VWV and the degree of sarcopenia in CHF reveals the importance of muscularity for aortic health.
P12 Proliferation and Procoagulant Activity of Vascular Smooth Muscle Cells from Thoracic and Abdominal Aortic Aneurysms
Authors: Didelot Melusine , Lagrange Jeremy , Michel Jean-Baptiste , Lacolley Patrick , Regnault Veronique 
Published: March 2020

AbstractIn contrast to abdominal aortic aneurysm (AAA), aneurysms of the thoracic ascending aorta (TAA) are not associated with a mural thrombus. Mechanistic understanding of the involvement of vascular smooth muscle cells (VSMCs) in thrombus formation is lacking. We aim to determine (i) whether thrombin generation at the surface of VSMCs is increased in AAA, (ii) the contribution of the avb3 integrin as a receptor for prothrombin, (iii) the implication of protease activated receptor (PAR) activation in the thrombin generation, and (iv) the capacity of thrombin to induce VSMC proliferation. Primary cultures of VSMCs were prepared from human biopsies of TAA, AAA and healthy aorta (n = 11/group). In the presence of prothrombin deficient plasma, similar low levels of thrombin were formed on the 3 types of VSMCs. In the presence of healthy plasma, thrombin generation was higher on VSMCs from AAA and lower on VSMCs from TAA compared with controls. Incubation of VSMCs with a RGT peptide inhibiting the b3 signaling reduced the amount of thrombin in the 3 groups. Incubation of healthy VSMCs with a selective PAR-1 antagonist decreased thrombin generation. This inhibition was more pronounced for AAA (36%) than from TAA (17%). VSMCs from AAA were more sensitive to thrombin-induced proliferation than VSMCs from TAA. The prothrombotic phenotype and proliferation of VSMCs from AAA compared to TAA is mediated partly by PAR-1. This argues for a contribution of VSMC in the occurrence of thrombotic events in AAA. Thus, inhibition of PAR signaling represents a new target in this complex disease.
P27 Non-validated Blood Pressure Devices Dominate the Online Marketplace: An Initiative of the Lancet Commission on Hypertension Group
Authors: Picone Dean , Deshpande Rewati , Schultz Martin , Fonseca Ricardo , Campbell Norm , Delles Christian , Hecht-Olsen Michael , Schutte Aletta , Stergiou George , Angell Sonia , Padwal Raj , Sharman James 
Published: March 2020

Abstract
Introduction
Home BP monitoring is recommended to guide clinical decisions on hypertension and is used worldwide. People make their own decisions when purchasing BP measurement devices, which are often made online. One potential barrier to accurate home BP monitoring is that patients may purchase an unvalidated device (one that has not been proven accurate according to an internationally sanctioned protocol). This study aimed to evaluate the number, type, percentage validated and cost of home BP devices available online.

Methods
A systematic search of online businesses selling BP devices that may be used for home BP monitoring was conducted. Multinational companies make international deliveries, so searches were restricted to BP devices available for one nation (Australia) as an example of device availability through the globally connected online marketplace. Validation status of BP devices was determined according to established protocols.

Results
59 online businesses, selling 972 unique BP devices were identified. These included 278 upper-arm cuff devices (18.3% validated), 162 wrist-cuff devices (8.0% validated) and 532 wrist-band wearables (0% validated). Most BP devices (92.4%) were stocked by international ‘e-commerce’ businesses (e.g. eBay, Amazon), but only 5.5% of these were validated. Validated cuff BP devices were more expensive than non-validated devices: median (interquartile range) of 101.14 (75.00 to 151.50; versus 67.37 (30.40 to 112.83) AUD, p < 0.0001.

Conclusion
Non-validated BP devices dominate the online marketplace and are sold at lower cost than validated devices. The widespread use of non-validated BP devices is a barrier to accurate home BP monitoring and must be urgently addressed.
P28 A Commonly Used Single-item Physical Activity Question Fails to Discriminate Expected Blood Pressure-related Cardiovascular Risk in a General Community Sample
Authors: Schultz Martin , Picone Dean , Fonseca Ricardo , Sharman James 
Published: March 2020

Abstract
Background
Completion of ≥150 minutes/week of physical activity (PA) is recommended for cardiovascular health, but this is achieved only by ~50% of Australian adults. Assessing self-reported PA via quick single-item question is desirable for largescale cardiovascular research and health screening. We aimed to determine if a commonly used PA question elicits the expected discrimination of blood pressure (BP) related cardiovascular risk in a community population.

Methods
958 individuals (aged 47 ± 15 years; 54% female) participated in a community BP screening campaign. BP was measured in triplicate using a validated oscillometric device and cardiovascular risk factors assessed by self-report. Adherence to PA guidelines was assessed via a single binary ‘yes/no’ question as to whether individuals met the guideline of ≥150 minutes of PA/week.

Results
A higher than expected proportion of participants (68% females, 74% males) reported meeting PA guidelines. There was no difference in SBP or DBP (127 ± 15 vs. 128 ± 15 mmHg, p = 0.144; 80 ± 11 vs 81 ± 11 mmHg, p = 0.232 respectively) between those reporting to meet or not meet PA guidelines. There were also no between-group differences in age, prevalence of diabetes, myocardial infarction, stroke or alcohol consumption (p > 0.05 all). Prevalence of BP ≥140/90 mmHg (26% vs 30%, p = 0.129) and antihypertensive treatment (12% vs 12%, p = 0.801) was similar between groups.

Conclusion
Assessment of PA via a commonly used research question did not elicit expected prevalence or discrimination of BP-related cardiovascular risk in this community sample. Further work is required to assess the usefulness of single item self-report PA questions for use in cardiovascular research and health screening.
P30 Interplay of Genetic and Environmental Factors Determining Carotid and Femoral Intima-media Thickness and Plaques
Authors: Tarnoki Adam Domonkos , Debreceni Rebeka , Janositz Greta , Gyulay Kata , Zsofia Jokkel , Berczi Viktor , Szabo Helga , Hernyes Anita , Tarnoki David Laszlo 
Published: March 2020

Abstract
Introduction
Intima-media thickness (IMT) of carotid and femoral artery and plaque formation are both markers of subclinical cardiovascular risk, despite these two process are not simultaneous. Our aim was to investigate their genetic and environmental background.

Methods
54 monozygotic (MZ) and 32 dizygotic (DZ) healthy, adult (mean age: 54.3 ± 13.8 years) Hungarian twins underwent B-mode ultrasound of bilateral common (CCA), internal carotid (ICA) and common femoral arteries (CFA) with automatic IMT measurement and plaque analysis (Samsung Prestige RS80).

Results
In our healthy sample, most of the plaques were located on the carotid arteries (68%), while the prevalence was 33% on the femoral arteries. The mean IMT of CCA and CFA was significantly increased in the presence of plaques (p < 0.05), while IMT of ICA was not affected by the presence of plaques. Increased IMT was in a close relation with the presence of femoral plaques. However, there was no significant correlation between IMT and the number or volume of plaques. Segment-specific heritability of IMT changed between 0.20 and 0.93. The prevalence of soft plaques was the highest (59%) on carotid arteries, while the majority of plaques (42%) was mixed on the femoral arteries. Increased values of IMT were in correlation with the presence of calcified and mixed carotid, and calcified femoral plaques (p < 0.05), while there was no correlation with the occurrence of soft plaques.

Conclusion
Intima-media thickening and plaque formation has a different background, depending on the individual genetic predisposition. In addition, treatment efficacy of increased IMT may vary segment-specifically.
P45 Comparison of Systemic and Regional Vascular Parameters Using New Ultrasound Techniques: Are they Clinically Useful?
Authors: Forcada Pedro , Sangiovanni Miguel , Pampinella Wanda , Montaña Oscar 
Published: March 2020

Abstract
Background
US is a simple, reproducible and economic technique for vascular evaluation. New technologies using radiofrequency and multidimensional Doppler plus computer development allow to evaluate parameters like shear stress, Flow profile and vascular remodeling no invasively.

Objective
To compare the “regional” carotid evaluation with the accepted parameters of vascular disease like remodeling, arterial stiffness and endothelial function in hypertensive patients.

Methods
We evaluated 43 consecutive patients (18 healthy referent, 12 controlled HTN y 6 non controlled HTN) derived for NIVE (IMT, Plaques, PWV c-f and Endothelial Function) (“systemic parameters”) and using a new US machine Resona 7® with radiofrequency and multidimensional Doppler (VFlow) we obtained “regional parameters” of the common carotid artery like remodeling, arterial stiffness, wall shear stress and hemodynamic data like instantaneous speed and flow and speed gradient. The protocol was approved by LEC.

Results
All the systemic parameters (IMT, %Plaques, PWV c-f and Endothelial Function) were significantly abnormal (p < 0.05) independently of BP control. The regional parameters and the regional hemodynamics showed an abnormal tendency without statistical significance. Correlation, regression and concordance tests showed that these parameters are concordant but not interchangeable.

Conclusion
The systemic and regional parameters where altered in hypertensive patients indicating the presence of associated vascular disease, independently of BP control. However, they were not interchangeable. These findings are limited due to the sample size and heterogeneity to yield a clinical application. Maybe, this pattern of regional vascular abnormalities, clearly different in hypertensives, could open a new field of investigation of vascular disease in hypertension.
P64 Carotid Artery Tracking with Automated Wall Position Resets Yields Robust Distension Waveforms in Long-term Ultrasonic Recordings
Authors: Beutel Fabian , Valle Laura Mansilla , Hoof Chris Van , Hermeling Evelien 
Published: March 2020

Abstract
Background
Carotid artery tracking has high clinical relevance for the investigation of arterial stiffness indicators like Pulse Wave Velocity (PWV). However, current tracking systems are unreliable and/or not fully automated [1,2]. In this work we propose a novel wall tracking algorithm for long-term ultrasonic recordings, featuring automated beat-to-beat end-diastolic wall position resets.

Methods
Carotid artery ultrasound (Vantage64, Verasonics, USA) and simultaneous ECG (ECG100C, BIOPAC, USA) were acquired from 10 subjects (38 ± 10 years) in 6 repeated measurements, each involving a resting, breathing and handgrip intervention. The ECG triggers an automated algorithm, whose heuristics utilize the hypoechogenic lumen to detect the end-diastolic wall positions in the ultrasound data. Subsequently, wall motion is tracked throughout the cardiac cycle by complex cross-correlation [3]. Further processing yields carotid distension waveforms and local PWV via spatiotemporal fitting of waveform fiducials. The novel per-beat algorithm was benchmarked against a manually initialized per-intervention algorithm, while ground truth wall positions were manually annotated. Performance was assessed for temporal efficiency, spatial accuracy and feature consistency.

Results
Average results show a ~4000% higher temporal efficiency, 20% increased spatial accuracy (µ error: 0.66 to 0.53 [mm]) and 14% improved feature consistency (ơPWV: 2.2 to 1.9 [m/s]) for the per-beat algorithm. Results of exceptional cases reveal even more significant performance, e.g. 60% increased spatial accuracy (µ error: 1.57 to 0.64 [mm]) for gradual drift and 58% improved feature consistency (ơPWV: 1.9 to 0.8 [m/s]) for instant vessel loss (see Figure 1).

Conclusion
The proposed algorithm demonstrates significant temporal efficiency, spatial accuracy and feature consistency, particularly during perturbations. Such robustness is essential for long-term monitoring, making the algorithm a powerful tool in ambulatory vascular research.
P70 Effects of Different Vitamin D Status on Mechanical, Pharmacological and Histological Characteristics of Coronary Arterioles in Male Rat Model
Authors: Sziva Reka Eszter , Fontanyi Zoltan , Pal Eva , Hadjadj Leila , Monori-Kiss Anna , Horvath Eszter Maria , Benko Rita , Magyar Attila , Heinzlmann Andrea , Benyo Zoltan , Nadasy Gyorgy L. , Varbiro Szabolcs , Bányai Bálint 
Published: March 2020

Abstract
Objectives
The cardiovascular/CV risk is higher in males. To know better these increased risks, our aim was to investigate the effects of different vitamin D/VD status on mechanical, pharmacological and histological characteristics of coronary arterioles in male rat model.

Methods
In male Wistar-rats we induced different VD status: “Group C” got 1000 IU VD containing rat chow and VD-supplementation, “Group D-” got less, than 5 IU VD containing rat chow to model the VD deficient/VDD status. At the end of the experiment we prepared intramural, small coronary arteriole segments from the LAD. With microangiometer, we measured the inner and outer diameters, TXA2-vasoconstriction, adenosine-vasorelaxation, and the passive diameter. Histopathological examinations were taken.

Results
Inner and outer radius were significantly decreased, wall thickness and wall-thickness/lumen diameter ratio were significantly increased in group D-, while the wall-cross-sectional area and the intima-media area% were not different. Tangential wall stress and incremental elastic modulus were significantly reduced in group D-. TXA2-vasoconstriction significantly lower in group D-. In the point of adenosine-induced vasorelaxation, in group D-only the highest dose of adenosine could relax the vessels. eNOS-expression was not differ, SMA-expression was significantly decreased in group D-.

Conclusion
The characteristics of the VDD group’s coronary arterioles had changed. The results refer to development of inner eutrophic remodelling and changed wall structure. These changes can cause increased vascular resistance and diminished coronary perfusion which as a result lead to the deterioration of the heart’s blood supply. These mechanisms can contribute to the increased incidence of the CV diseases in VDD.