Miracle-dz/UniFAR-FTUs huggingface dataset:
¿Qué libro de texto elegir? La competencia visual en las actividades con imágenes

The aim of this research is to generate criteria to help in the choice of textbooks focusing in the graphical or visual competence fostered in their activities. The criteria are tested by comparing different primary education textbooks by several Spanish publishers by means of how graphicacy is considered in the activities about the human body. The criteria used are task type, type of biological procedures, level of cognitive processing and the existence of graphical teaching. We found that one of the publishers promotes better the graphicacy in the activities about human body although we also analyzed the contributions of the other publishers. We concluded that the criteria proposed could help to select the best textbook according to graphicacy. Nevertheless, the results also show the necessity to change the conception and use of images as learning tool.
Effect of Human Umblical Cord Blood Stem Cells on a Rodent Model of Parkinson's Disease

Parkinson's disease (PD) is a neurodegenerative disease, which mainly affects the motor system. It is characterized by degeneration of dopaminergic neurons of the nigrostriatal pathway and formation of Lewy bodies. So far, there is no an effective treatment for PD, and the hope is to find neuroprotective strategies to stop or mitigate the disease progression. Therefore, this study aimed to find a treatment for PD with the help of regenerative medicine. Rotenone was administered subcutaneously in thirty adult female rats at a dose of 2 mg/kg BW for 35 days to induce PD. Afterwards; the animals were treated by either levocar or human umbilical cord blood mesenchymal stem cells (hUCB-MSCs). Body weight and behavior were recorded weekly around one month, then estimation of dopamine level in brain tissues and histopathological examination were also performed after one month. hUCB-MSCs-treated group showed an improvement (P< 0.05) of the body weight, behavioral assessment, dopamine level and the histopathological findings when compared with the untreated group. Levocar-treated group showed an improvement (P< 0.05) of body weight and behavioral assessment, whereas nonsignificant differences in dopamine level and the histopathological findings were noticed when compared with the untreated group. In conclusion, hUCB-MSCs significantly improved rotenone-induced PD, which evident by improving behavioral patterns, body weight, dopamine level and brain lesions.
Techniques for the study of ion-molecule reactions

Ion cyclotron resonance spectrometry Fourier transform mass spectrometry neutral products from electron bombardment flow studies flowing afterglow and sift pulsed electron high pressure mass spectrometer nuclear decay techniques ion beam methods state-selected and state-to-state ion-molecules reaction dynamics by photo-ionization methods spectroscopic probes infrared laser photolysis pulsed methods for cluster ion spectroscopy.
Synthesis, Physical Properties and Supramolecular Organization of B-doped Molecular Material

π-conjugated structures have been at the center of a growing interest regarding their applications in material science, for OLED, for solar cells and for information storage. In order to extend their applications field, the electronic properties of these molecules can be tuned by substituting the π-conjugated backbone with electron donating or withdrawing groups. An alternative strategy is to tune these properties by replacing the carbon atoms of a compound by heteroatoms. This leads to compounds presenting large arrays of tuned properties. For example, replacing a carbon-carbon pair, in a π-conjugated compound, by a boron-nitrogen pair can lead to bathochromically or hypsochromically shifted fluorescence, which can be exploited for emitting materials in OLED. The objective of the present thesis is to gain a detailed understanding of both the properties and the molecular and supramolecular structures of such compounds. The present thesis describes the synthetic strategies for the obtainment of π-conjugated structure where carbon-carbon pairs have been replaced by boron-nitrogen pairs. Upon substitution of the central phenyl ring, of hexasubstituted derivative, by a borazine ring, as a slight hypsochromic shift of the fluorescence in the UV region has well as an increase of quantum yield was noticed. The adsorption behavior on metallic surface was later probed, followed by the incorporation of the compound inside the emissive layer of OLED devices. In a second part, the self-assembly of phenylboronic acid with hydrogen bond acceptors was probed in the solid state by X-ray crystallography and in solution by ITC analysis. The equilibrium between these derivatives and their anhydride form was studied, with parameters such as the temperature and the position of the substitution by electron withdrawing/donating groups.
Probability and Consequences of Nuclear Criticality at a Geologic Repository—II: Potential Repository in Volcanic Tuff as an Example

Abstract This paper, Part II of two companion papers, demonstrates the concepts for evaluating the criticality scenario class after closure of a geologic repository for spent nuclear fuel (SNF) and high-level radioactive waste. As an example, the low-probability rationale used to exclude consideration of criticality in the performance assessment of the potential Yucca Mountain (YM) repository in southern Nevada is summarized. The Yucca Mountain Project (YMP) presented a quantitative rationale that the probability of criticality inside breached waste containers was <10−4 over 104 yr to show that criticality was not necessary to consider. The dominant probability occurred when neutron absorber material was inadvertently left out for a package disposing of SNF from experimental reactors owned by the U.S. Department of Energy. In addition, this paper develops a quantitative estimate of the low probability of criticality outside the package in either the engineered or geologic barrier to complement the qualitative rationale developed by YMP. Because consequence may also be used as the basis of screening, consequences of criticality at the potential YM repository are roughly estimated, based on results from the literature. The consequences are then combined with the low-probability estimates as a complementary cumulative distribution function to place the corresponding estimated consequences in context and, thereby, provide further perspective on excluding the criticality scenario class.
Design, preparation and animal experimental study of biodegradable Mg-Zn alloy rib contractor

Objective To investigate the effects of biodegradable Mg-Zn alloy rib contractor in rib internal fixation and its degradation process, in order to provide experimental evidence for clinical study. Methods The novel biodegradable Mg-Zn alloy rib contractor was prepared. Fifteen Beagle dogs were used to establish the model of animal multiple ribs fracture, and were divided into Mg-Zn alloy group (experiment group, n=10) and steel panel group (control group, n=5). Rib internal fixation was performed in each dog. The incision reaction, body weight and incidences of postoperative complications were compared between two groups. Chest CT examinations were performed 2, 4, 8 and 12 weeks after operation, and CT three dimensional reconstruction of thoracic cage was done. The dogs were sacrificed 4, 8 and 12 weeks after operation, the degradation of Mg-Zn alloy rib contractor was observed, and the histopathological features of callus were examined in experiment group. Results There was no perioperative death in two groups, and there was no significant difference in body weight and incidences of postoperative complications between two groups. Incision infection occurred in one dog in experiment group, which was healed after proper management. Twelve weeks after operation, HE staining demonstrated that the rib fracture was healed, with unclear borderline and no inflammatory cell infiltration. Chest CT examination and three-dimensional reconstruction indicated that the rib fracture was healed and Mg-Zn alloy was completely degraded. Conclusion Biodegradable Mg-Zn alloy is feasible for rib internal fixation, with no unfavorable effect on the surrounding tissues, which may have a good clinical prospect. Key words: Mg-Zn alloy rib internal contractor; Rrib fracture; Animal study; Biosafety
A revision of taxonomic relation between Oenothera perangusta and O. ersteinensis (Onagraceae) based on morphometric research and statistical analyses

The taxonomic status of Oenothera ersteinensis and O. perangusta (sect. Oenothera, subsect. Oenothera; Onagraceae) has remained unresolved. According to the representatives of the so-called American school of taxonomy both names should be assigned, as their synonyms, to two separate, widely treated species (O. biennis and O. oakesiana, respectively) whereas European researchers consider both taxa as very similar or even as a single species. In order to establish the taxonomic relation between these taxa, detailed morphometric research and statistical analyses—principal component analysis, correspondence analysis, discriminant analysis and Wald-Wolfowitz runs test—were performed. As a background to present the differentiation between the considered taxa, analyses of European representatives of two distinct and widely distributed species, O. biennis and O. oakesiana, were also conducted. The results revealed that the highest discriminatory power have mostly qualitative features. Oenothera ersteinensis turned out to be a distinct and well-separated species belonging to the series Oenothera whereas O. perangusta is most probably only a synonym name of O. oakesiana. Moreover, it was demonstrated that all the investigated specimens labelled as O. perangusta were in fact misrecognized representatives of O. ersteinensis. The updated map of distribution of O. ersteinensis is also provided.
Community‐level economics spectrum of fine‐roots driven by nutrient limitations in subalpine forests

Fine‐root traits show remarkable variation with plant community structure and environmental shifts, but there is limited understanding of how trait covariation that exists among fine‐root traits shifts among different communities, especially in forests. We explored links among the fine‐root traits of forest communities to determine whether community root traits shift predictably according to an economics framework along environmental gradients. Measurements of root morphology, nitrogen, phosphorus and carbon concentrations, and measures of standing root densities were collected on fine‐roots (diameter ≤ 2 mm) from 129 forest plots in five subalpine forests. This study demonstrates an existence of a community‐level fine‐root economics spectrum (REScom) in the subalpine forests, in which specific root length was strongly and positively related to root nitrogen and phosphorus contents, but negatively related to root diameter. Soil nutrient limitation was a major driver of the REScom as changes in soil [N], [P] and [C] contents were related to changes in SRL, root [N], root [P]. Variables related to standing fine‐root length and mass were independent of the REScom and were primarily related to forest community structure, particularly in tree closure and herbaceous plant mass. Synthesis. These results indicate two distinct functional dimensions of community fine‐root trait variation: resource‐use efficiency via changes in root structure and construction, and separately via changes in the standing root system. Identifying shifts in allocation to and investment in fine‐roots enhances our understanding of a root and whole‐plant economics spectrum and community functioning.
Equilibrium and Nonequilibrium Behaviours of 1D Bose Gases

One-dimensional quantum many-body systems exhibit peculiar and intriguing behaviors as a consequence of the reduced dimensionality, which enhances the effect of fluctuations and correlations. The high degree of isolation and controllability of experiments manipulating ultra-cold atomic gases allows for the experimental simulation of text-book models, for which many theory tools are available for quantitative comparison. I will present instances of such efforts carried out during my PhD thesis, namely, the studies performed to investigate the behavior of 1D Bose gas (Lieb-Liniger gas) at equilibrium and beyond. An overview of the toolbox available to date to characterize the equilibrium thermodynamics of a Lieb-Liniger gas will be shown, followed by a detailed study of the breathing mode of such a system.
Microscopic study of human nasal cavity microanatomy using semi-thin resin embedding and methylene blue staining

ABSTRACT The nasal cavity is a part of the respiratory tract which humidifies, filters, and warms the air we breathe, as well as being the organ of olfaction. It is easily accessible in terms of morphological and histopathological evaluation for clinical and research purposes. There have been many studies and textbooks showing the histological evaluation of the nasal cavity’s three functional regions: the vestibule, respiratory, and olfactory. The present study aimed to examine the nasal mucosa in a detailed manner in 11 predetermined anatomic areas. Specimens were collected from six fresh-frozen cadavers using a standard punch biopsy procedure. Microscopic evaluation was done on the nasal mucosa, glands, blood vessels, muscles, connective tissue, and neural anatomy. Also, examined and described were the epithelial cell and glandular transitions in the mucosal lining. The microscopic investigation of these features in the nasal cavity provided important information for both clinical and research purposes.
Social Networks and Business Performance of Igbo Migrant Traders in Ibadan, South-West Nigeria

This study focused on social networks and business performance among Igbo businessmen in Ibadan, South-west Nigeria through the exploratory research design. Social exchange, social network and social capital theories were employed as theoretical framework. Twenty-six in-depth interviews, key informant interviews and case studies were conducted with purposively selected respondents in four business locations in Ibadan. The results showed that among the factors that facilitated migration of the Igbo to Ibadan were their interest to learn a trade, their inability to attain higher education, and having a relative in Ibadan. The types of social networks available showed that social network was not location bound, as all the respondents belonged to town progressive unions and mutual benefits/cooperative associations. Social networks played vital roles in business performance, including social support, access to loan, business growth and expansion. The main challenges to maintaining adequate social network in business were distrust, envy, unbridled competition, dishonesty and inability to keep terms of agreement. The study concludes that social networks have positively influenced the business performance of migrant Igbo in Ibadan. There is need for the Igbo to strengthen their social networks through honesty, forthrightness, and transparency in all their dealings.
Plasma polymerization processes

1. Introduction. Historical background. Plasma polymerization and related processes of polymer film formation. 2. Fundamentals of Plasma Physics. Electrical breakdown in a gas and the d.c. glow discharge. Characterization of low temperature plasma generated by a glow discharge. Radio frequency and microwave discharges. 3. Fundamentals of Plasma Chemistry. Reactions in a plasma volume. Reactions on adjacent surfaces. 4. Fundamentals of Plasma Polymerization. Basic deposition arrangements for plasma polymerization. Kinetic models of plasma polymerization. General description of plasma polymer films. 5. Applied Systems for Plasma Polymerization and Classification of Plasma Polymers. Applied plasma polymerization systems. Main groups of plasma polymers. Hard polymer and hard carbon films. Metal-containing organic films. 6. Properties and Application of Plasma-Polymerized Films. Protective coatings. Optical, electrical and magnetic properties. Permselective membranes. Biomedical applications. Modifications of conventional polymer materials by plasma treatment. 7. Potential Applications in Microelectronics. Passivation and protective coatings. Active elements in electronics. Plasma polymerized photoconductive films. Concluding note. References. Appendix. Index.
Chemical properties of the soil fertilized with potassium and calcium in guava cultivation cv. 'Paluma'

Soil fertility gradually declines over time and under continuous cultivation. It negatively reflects on the yield and quality of crop production, including guava, which is a perennial fruit of high economic potential. Therefore, the objective of this study is to evaluate the effect of potassium doses with and without the application of calcium in soil cultivated with guava “Paluma. ” The experimental design was a randomized block with factorial arrangement of 2 × 5, relative to the soil with and without 120 g plant -1 year -1 calcium (using calcium nitrate) and five doses of K2O from 0, 45, 90, 135, and 180 g plant -1 year -1 in the form of potassium chloride. The variables analyzed in soil were potential hydrogen, organic matter, phosphorus, potassium, calcium, magnesium, sodium, sum of bases, hydrogen plus aluminum, aluminum, cation exchange capacity, and soil base saturation. The soil fertility was higher in the treatments with potassium (K) fertilizer which has recommended doses between 90 and 135 g plant -1 year -1 without application of calcium in the soil.
Journeying Toward Business Models for Sustainability: A Conceptual Model Found Inside the Black Box of Organisational Transformation

Scholars increasingly recognise that business contributions to sustainable development are founded in new business models. However, most research in this field remains conceptual and offers a rather static view of a complex and dynamic reality. This article contributes to understanding how new business models for sustainability are fashioned through the interactions between individuals and groups inside and outside companies. Based on two case studies, our findings show that three elements contributed to the path of transformation toward business models for sustainability: building networks and collaborative practices for learning and action around a new vision, the deployment of new concepts drawn from outside the company, and elaborating an implementation structure within a reconfigured network. Our findings reveal the complexity of the process, which went through four subprocesses: identifying, translating, embedding, and sharing. Our results also highlight the importance of considering value destruction as well as new ways to create and capture value.
Recommendation Revisions and Differences in the Interpretation of Earnings

I use recommendation revisions following earnings releases to contrast analysts’ and investors’ earnings interpretation. Building on the predictions of a simple model, I document that recommendation revisions are systematically related to variation in the relation between current earnings surprises and future earnings. Consistent with the idea that this information is not part of investors’ information set prior to the release of recommendations, I show that cross-sectional differences in how investors respond to their release align with the information they contain about future earnings. In addition, I document that investors recognise heterogeneity in analysts’ abilities to interpret earnings and they incorporate these differences when responding to revisions.
Pulse Waves: How Vascular Hemodynamics Affects Blood Pressure

CHAPTER 1 Introduction CHAPTER 2 Mean arterial pressure CHAPTER 3 Pulse pressure CHAPTER 4 Evaluation of the mechanical proprieties of large arteries CHAPTER 5 Central blood pressure CHAPTER 6 Pulse Wave Analysis CHAPTER 7 Central blood pressure and cardiovascular risk CHAPTER 8 Non-invasive measurement of central blood pressure CHAPTER 9 Instruments for the pulse wave analysis and the measurement of pulse wave velocity CHAPTER 10 Pulse wave velocity and pulse wave analysis in experimental animals ESSENTIAL BIBLIOGRAPHY
Biocontrol potential of a Bacillus subtilis strain BJ-1 against the rice blast fungus Magnaporthe oryzae

Abstract The biocontrol strain BJ-1 was isolated from a contaminated Magnaporthe oryzae culture plate and identified as Bacillus subtilis based on morphological characteristics, Biolog Microlog identification and 16S rDNA sequence analysis. The dual culture test showed that BJ-1 has a wide antimicrobial spectrum, and is especially potent against M. oryzae. The culture filtrates of BJ-1 significantly inhibited mycelial growth of M. oryzae P131, caused mycelial disintegration and induced swollen germ tubes. RT-PCR revealed the expressions of seven lipopeptide synthesis genes, encoding surfactin (srfAA and SPAB-ERIB), fengycin (fenB and FENCEA), subtilin (spa and spaS) and bacilysin (BACD) in BJ-1. Application of 1 × 108 CFU mL−1 bacterial cells or 5% culture filtrates of BJ-1 completely suppressed rice blast on detached leaves. In pot experiments, both spray and seed treatments using culture broth provided more than 50% disease suppression on rice blast. Interestingly, rice seeds soaked in culture broth of BJ-1 before planting induced host systemic resistance to inhibit rice blast development and promote plant growth, with disease reduction of over 70%, at a similar level as the fungicide tricyclazole. Expressions of two PR genes (OsPR1a and OsPR10) and three genes (OsPAL, OsICS1 and OsAOS2) known to function in salicylate- and jasmonate-dependent defence signalling pathways in rice plants after seed treatment by culture broth of BJ-1 were significantly induced. This is the first description of the use of B. subtilis as a seed treatment for control of rice blast and these results indicate that B. subtilis BJ-1 is a highly promising biocontrol agent for suppression of rice blast disease.