Miracle-dz/UniFAR-FTUs huggingface dataset:
Lorentz invariance viólatión in qed: theoretical and phenomenological searches

In this thesis we study some aspects of Lorentz invariance violation (LIV) as well as violations of CPT symmetry. Particular attention will be given to the implications of these violations in QED. It must be said form the outset that these have not been experimentally seen so far, however its study is extremely relevant since in many approaches to Quantum Gravity these symmetries seem to be no longer valid at least in some very restricted regimes. Therefore exploring its consequences at least phenomenologically could tell us important features of the would-be theory of quantum gravity. We start presenting some formal issues and giving some context on the theoretical and experimental facets of LIV. Then we will specifically study the case of LIV in QED. To this end we will start from a model in which fermions are coupled to a constant background axial vector b which in this thesis will be the responsible for LIV, and henceforth call LIVQED. Some motivation for such a scenario will be given in the text. Then we will study the one-loop radiatively induced effects of the above in the photon sector. To this end we compute the vacuum polarization tensor and use the ’t Hooft-Veltman-Breitenlohner-Maison Dimensional Regularization scheme. The LIV vector introduces new subtleties at the quantum level of the theory which need to be critically examined for consistency. At this stage the LIV effects will produce both CPT -even and CPT -odd contributions, due to the axial coupling. The latter have already been studied in the literature, while the former had not been studied until the author in collaboration with other people addressed the issue in [4]. The phenomenological implications of this model are presented and by contrasting it to experiments we obtain bounds on the extent to which Lorentz symmetry could be violated in this scenario. Equally important, we analyze the quantum consistency of the CPT -even part of LIVQED opening the possibility for a new way in which LIV may occur which had not been found in the study of LIVQED in the CPT -odd sector. In this respect, this work is an important contribution in the study of the whole LIVQED programme since for the model to be fully consistent, both parts need to be studied.
Biodisponibilité et Dynamique de Partition de Métaux Traces aux Interphases Microbiennes : effets de Complexation Intracellulaire et Application aux Biosenseurs Bactériens.Bioavailability and Partitioning Dynamics of Trace Metals at Microbial Interphases: Intracellular Complexation Effects and Appli

La biodisponibilite d'un metal pour un organisme donne correspond a la fraction de ce metal qui est potentiellement bioadsorbable et/ou biointernalisable. Elle depend de la composition physicochimique du milieu, de la nature des surfaces biologiques considerees et elle est modulee par la reponse cellulaire des organismes. Dans un contexte environnemental, l’analyse des processus controlant la bioassimilation des metaux est essentielle pour une prediction fiable de leur biodisponibilite et toxicite. Dans ce manuscrit sont detailles des developpements theoriques et experimentaux visant a comprendre la dynamique de partition de contaminants metalliques aux interfaces microbiennes et les determinants de leur biodisponibilite selon une approche qui depasse les cadres thermodynamiques classiques (modele BLM). Apres une partie introductive et une revue de l'etat de l'art, le troisieme chapitre de cette these est dedie a l'elaboration d'un formalisme pour l'evaluation quantitative de la bio-partition hors-equilibre de metaux traces aux interfaces biologiques. Ce modele theorique est base sur les expressions des flux de contaminants depuis la solution extracellulaire vers la surface biologique par diffusion/conduction, des flux d'internalisation et excretion a travers la membrane, et il tient compte de la cinetique de depletion des metaux en solution. Le formalisme integre par ailleurs les processus de complexation intracellulaire des metaux sur la base d'un mecanisme d'Eigen generalise. Dans le quatrieme chapitre, des souches d'Escherichia coli ont ete genetiquement modifiees pour (i) limiter leurs capacites d'excretion des metaux et (ii) sur-exprimer des proteines intracellulaires ayant une forte affinite pour ces metaux. Des donnees experimentales issues de suivis cinetiques de depletion de Cd(II) realisees a differentes fractions volumiques en bacteries ont permis de conforter avec succes les bases de la theorie elaboree dans cette these pour la partition de metaux a des biointerfaces molles chargees. Un dernier chapitre est consacre a l’evaluation quantitative de la reponse de biosenseurs luminescents en presence de metaux. Ce formalisme decrit la facon avec laquelle la derivee temporelle des biosignaux depend de la dynamique d’internalisation du metal, de la cinetique de formation de complexes intracellulaires regulateurs des processus de transcription et de leurs stabilites, et des processus de bio-sorption passive. Une confrontation avec des donnees experimentales issues de biosenseurs sensibles au cadmium a permis de mettre en evidence l’inapplicabilite des modeles d’equilibre de biodistribution des metaux, et de predire la reponse des biosenseurs a des variations de la salinite du milieu, de la concentration cellulaire et de la concentration bulk de metaux
Detailed molecular movements during poly(L-lactic acid) cold-crystallization investigated by FTIR spectroscopy combined with two-dimensional correlation analysis

A good understanding of the detailed molecular movements of the poly(L-lactic acid) (PLLA) cold-crystallization is significant for academic investigation and commercial application. In this article, the cold-crystallization process of PLLA was successfully investigated via temperature-dependent FTIR spectroscopy combined with the perturbation correlation moving-window two-dimensional (PCMW2D) spectroscopy and generalized two-dimensional correlation (2D) spectroscopy. PCMW2D reveals that the cold-crystallization of PLLA undergoes two processes: Process I (60.8–73.7 °C) and Process II (91.1–104.0 °C), which is consistent with the results of differential scanning calorimetry (DSC) measurement. The method of estimating the regularization enthalpy of function groups (CH3, CO, and CCO–O) during both Process I and Process II is established based on van't Hoff plots. The results show that the enthalpy of the regularization of chain segments is decreased with the increasing mobility. The sequential order of the groups' movement in both Process I and Process II is successfully investigated by the generalized 2D correlation analysis, which has great significance for understanding the detailed microdynamics mechanism of the PLLA cold-crystallization. Process I is the relaxation process, which undergoes 2 steps and Process II is the primary cold-crystallization process, which has 5 steps.
Relative quantification of neuronal polar lipids by UPLC-MS reveals the brain protection mechanism of Danhong injection

Promising results from clinical trials have fueled a growing acceptance of Danhong injection (DHI) as a Chinese Materia Medica standardized product for the treatment of ischemic stroke. However, little information is available on the underlying mechanisms of DHI especially in lipidomics. In this study, experiments on permanent middle cerebral artery occlusion (MCAO) in mice were carried out to confirm the protective effect of DHI. Furthermore, primary mouse cortical neurons subjected to oxygen-glucose-deprivation (OGD) were used to investigate the protective mechanisms of DHI. A UPLC-MS profiling analysis for neuronal polar lipids including phosphatidylcholines (PCs), sphingomyelins (SMs) and ceramides (Cers) was carried out in order to study the potential biomarkers in this OGD-induced neuron injury model. The results showed that pretreatment with DHI resulted in a significantly smaller infarct volume and better neurological scores than pretreatment with saline in MCAO mice. In an OGD-induced neuron injury model, DHI exhibited remarkable neuroprotection by reducing the neuronal damage and excessive accumulation of intracellular reactive oxygen species, suppressing intracellular free calcium influx and apoptosis. Meanwhile, 28 biomarkers of PCs, SMs and Cers sub-species of neuronal injury induced by OGD have been identified for the first time. The perturbations could be partly reversed by DHI intervention such as PC (17:0,0:0), PC (18:0,0:0), PC (16:0,0:0), PC (P-16:0,0:0) and SM (18:0,16:0). The results specifically provide information on the relationships between PCs, SMs, Cers sub-species and neuronal damage mechanisms during an ischemic stroke. Overall, we found that the therapeutic effects of DHI on cerebral ischemia are partially due to interferences with the PC and SM metabolisms.
Lipolysis of domestic wastewater in anaerobic reactors operating at low temperatures

Poor breakdown of lipids is a major barrier to the anaerobic treatment of domestic wastewater at low temperatures. Lipids are degraded by extracellular lipases that are produced by, as yet, unknown bacteria. We wished to know if the poor degradation of lipids at low temperatures is due to a lack of lipase or to a lack of lipase activity. We therefore conducted an assay of the lipase activity in biomass adapted to the treatment of settled domestic wastewater at 4, 8 and 15 °C and compared this with the activity of the same biomass at 37 °C. Lipase activity decreased with temperature and was un-measurable at 4 °C. When the lipase activity in the biomass was evaluated at 37 °C, the lipase activity was 21.7 ± 14.0% greater in the biomass adapted to 4 °C than in the biomass adapted to 15 °C. We conclude that enzymes are produced at low temperatures but that the activity at these temperatures is low. Settled and unsettled wastewaters were used as controls and we were surprised to see lipolytic activity in the unsettled wastewaters at low temperatures. The activity was too high to be accounted for by the presence of biological detergents and we infer that is caused by bacteria naturally present in domestic wastewater. The presence of lipolytic activity at low temperatures was associated with the presence of members of the genera Trichococcus and Devosia, and the families Caldilineaceae and Bacteroidaceae.
Entry, Sunk Costs, and Market Structure: Reply

Robert Cairns's comment on my paper states that I reverse the central assumptions of contestability theory and that my analysis of the game is incomplete. These points highlight the many difficult and unresolved issues that arise when one tries to model the strategic behaviour of firms. The purpose of my paper is to provide an analysis of a model that incorporates both structure (entry/exit choice) and conduct (price choice) issues. Previous work has tended to highlight only one or the other issue. The comment by Cairns point out weaknesses in my exposition of these matters which I will try to correct in this reply. Although he finds an error in the proof of proposition 1 (the proposition itself is correct), the comment by Cairns demonstrates a serious misunderstanding of how one analyses dynamic games and in particular the use of optimal credible punishments in sustaining subgame perfect equilibria. Before going through each of Cairns's points, let me begin by pointing out that one of the appealing features of contestability theory is that it makes no assumptions concerning the structure of the game. To quote Baumol and Willig (1986) in a recent assessment of their theory: 'Contestability theory offers an analytic framework within which the fundamental features of demands and production technology determine the shape of industry structure and many of the characteristics of industry prices. The theory accomplishes this via a process of simplification; by stripping away through its assumptions all barriers to entry and exit, and the strategic behavior that goes along with them both in theory and reality. ' One of the virtues of contestability theory is that it is an extension of competitive equilibrium theory to the case of increasing returns to scale. Though contestability theory can act as a benchmark for policy analysis, it does not pretend to be the predicted outcome of strategic behaviour among firms. Baumol and Willig in the same article go on to say that contestability theory 'is by its very construction immune from considerations of strategic behaviour. Nevertheless . it is worthwhile to investigate what forms of game and what models of dynamic strategic
Chaussures minimalistes: quelle influence sur le taux de blessures et les douleurs ? : travail de bachelor

INTRODUCTION : For a few decades, running has become a sport growing in popularity. However, this practice is not without risk and the injuries inherent in this sport. The benefits of the standard shoe are questioned with the rise of popularity of the minimalist shoe. PROBLEMATIC : Evaluate the rate of injury and intensity of pain by recreational runners during a transition from standard footwear to minimalist footwear. METHOD : We consulted databases Medline via PubMed, Cinahl, PEDro, Embase, Cochrane Library, LiSSa, BDSP and Kinedoc. The research strategy used included combinations of key words and raw terms focused on three themes: running, minimalist footwear and injuries. Three studies were selected: two randomized controlled trials and one prospective study. Their quality were evaluated with the PEDro scale and the CONSORT checklist. OUTCOMES : The difference between conventional footwear and minimalist footwear for the risk of injury is not significant, even though it tends to increase number of injuries when transitioning to minimalist footwear. As far as overall pain is concerned, they do not differ between the groups. On the other hand, we observe that the runner making a transition to minimalist shoes may suffer more severe pain in the calf and tibia. CONCLUSION : Respecting a slow transition seems to reduce the risk of injury. However, additional studies are necessary in order to establish guidelines on the protection of runners during this period of time.
Visible light assisted photocatalytic degradation of crystal violet dye and electrochemical detection of ascorbic acid using a BiVO4/FeVO4 heterojunction composite

A BiVO4/FeVO4 nanocomposite photocatalyst was successfully synthesized via a hydrothermal method. The prepared heterojunction photocatalyst was characterized physically and chemically using XRD, SEM, EDX, XPS, BET, FT-IR, Raman, UV-vis DRS, EPR and photoluminescence techniques. BiVO4/FeVO4 was explored for its photocatalytic activity by the decomposition of crystal violet (CV) organic dye under visible radiation. This experiment showed that BiVO4/FeVO4 at a ratio of 2 : 1 completely degrades CV within 60 min. In addition, BiVO4/FeVO4 was investigated for the electrochemical detection of the useful analyte ascorbic acid using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry techniques. This work reveals the potential of the BiVO4/FeVO4 nanocomposite for applications in environmental disciplines as well as in biosensing.
Soil nutrient status and yield of rice as affected by long-term integrated use of organic and inorganic fertilizers

ABSTRACT Nutrient balance is the key component to increase crop yields. Excess and imbalanced use of nutrients has caused nutrient mining from the soil and deteriorated crop productivity and ultimately soil health. Replenishment of these nutrients has a direct impact on soil health and crop productivity. Based on this fact, the present research was conducted to determine the effects of long-term integrated use of organic and inorganic fertilizers on soil nutrient status and yield (grain and straw) in rice. Different combinations of inorganic nitrogen (N) and organic sources (sewage sludge and compost) were applied to the soil. Data revealed that application of mineral NPK in combination with 50% N through compost significantly increased the organic matter content (0.36%), available phosphorus (16.50 kg/ha) and available potassium content (239.80 kg/ha) in soil. The maximum available N (225.12 kg/ha) was found by the substitution of 50% N through sewage sludge. This improvement in soil nutrient status through combined use of organic and inorganic fertilizers produced significant increase in grain and straw yield as compared to inorganic fertilizers alone. Maximum grain (6.96 t/ha) and straw (8.56 t/ha) yields were found in treatment having substitution of 50% N (recommended) through compost @10t/ha. Also, a significant positive correlation was found between soil nutrients and straw and grain yield in rice. Thus the study demonstrated that substitution of 50% inorganic N through compost will be a good alternative for improving soil fertility.
Localización y cartografía simultánea: estudio sobre la exploración óptima de escenarios complejos

The main objective of this thesis work is the implementation and simulation of an SPLAM system focused mainly on the trajectory planning stage for the exploration of interior scenarios. Our proposal is based on the use of flexible computing techniques, more specifically genetic algorithms. The main objective is for the robot to carry out efficient trajectories that allow it to build a map with a map of a given environment. The poses are searched with the paradigm known as Next Best View which in our case finds the next best poses using each individual of the genetic algorithm as a potential next pose. That is, it is treated as an optimization problem. This is done through local searches. The operation of the proposed technique is evaluated by comparing it with a classical SPLAM technique based on the use of the EKF. The experiments are performed in a graphic simulator that was developed as part of this thesis work.
Entrapment of distilled palmarosa (cymbopogon martinii) wastes in alginate beads for adsorptive removal of methylene blue from aqueous solution

This study described a preparation of a low‐cost adsorbent by entrapment of palmarosa distillation wastes into alginate as supporting matrix and use of it for methylene blue (MB) dye removal from aqueous solution. Fourier transform infrared spectroscopy (FTIR) data of adsorbent confirms the entrapment for formation of composite beads. The effects of adsorption parameters (adsorbent dose, temperature, initial dye concentration, and pH) were investigated. Time to reach the equilibrium was dependent on dye concentration and it was 120 min for lower concentration and 240 min for higher concentration. The analysis of the kinetic data by pseudo‐first‐order and pseudo‐second‐order models displayed that MB adsorption followed pseudo‐second‐order model. The equilibrium data of MB adsorption were described by applying the Langmuir, Freundlich, and Temkin models. The observations from adsorption isotherms indicated that Langmuir model is the best fitted model and the maximum adsorption capacity (at the optimum pH 9.0) improved from 5.71 to 6.45 mg/g as the temperature increased from 298 to 328 K. The thermodynamic studies demonstrated that MB adsorption on to the adsorbent was spontaneous, feasible, and endothermic. Low desorption of the dyes from the adsorbent indicates that the dyes might have been chemisorbed on to the adsorbent surface. A single‐stage batch adsorber was designed and quantity of adsorbent required for treating 1–10 L of stained water was determined based on the Langmuir isotherm model equation. Results indicate that the composite bead could be an alternative for relatively costly adsorbents used for remediation of MB dye bearing industrial effluents. © 2018 American Institute of Chemical Engineers Environ Prog, 37: 1901–1907, 2018
Der Einfluss von HPV und ALDH1 auf das krankheitsspezifische Überleben des oralen Plattenepithelkarzinoms

In der vorliegenden Promotionsarbeit wurden Methoden des HPV-Nachweises evaluiert. Zudem wurde der Einfluss einer HPV-Infektion, des HPV-assoziierten Surrogatmarkers p16INK4a und des Tumorstammzellmarkers ALDH1 beim oralen Plattenpithelkarzinom untersucht. Es konnte gezeigt werden, dass der alleinige Nachweis von p16INK4a fur eine HPV-Infektion nicht ausreichend ist und dass eine HPV-Infektion keinen Einfluss auf das Uberleben beim oralen Plattenepithelkarzinom hat.
The Transference of the Language of Verse

Translating the language of verse is a challenge for the translator as he should live and put his mind in a poetical state. The translator of verse should sway with the different poetical images in order to be a carrying vessel for other cultures. Hence, liberating oneself from the narrow-minded feelings is the great obstacle that hinders the translator of poetry due to the fact that he should be in a state of empathy with the poet's personality alongside reading a great deal of the poet's other works for the sake of getting closer to his intellectual realm. Thus, translating poetry is believed to be next to impossible specially when trying to preserve both the form and content at the linguistic and cultural levels. To produce the exact purpose of poetry in another language, certainly, there should be some modifications in order to achieve the same aesthetic value of the original poem which is the measurement of success in poetry translating. Although there are many functions for poetry such as the informative, didactic, cognitive, practical and entertainment, the aesthetic function is the most noticeable and important one. To translate poetry, you are lying between the devil and the deep blue sea. Consequently, modification is a sore need, but it is a twosided coin because adding or losing any part of a poem leads to truncated images.
BUTAFOSFAN E CIANOCOBALAMINA: EFEITOS INDIRETOS NA RECUPERAÇÃO DA GLÂNDULA MAMÁRIA DE VACAS LEITEIRAS APÓS MASTITE CLÍNICA

Em vacas leiteiras, a recuperacao da glândula mamaria apos a ocorrencia de mastite e um processo que merece atencao especial. Sendo assim, o objetivo deste estudo foi avaliar o efeito da associacao de butafosfan e cianocobalamina (BFC) na recuperacao da glândula mamaria de vacas leiteiras apos o tratamento de mastite. Foram utilizadas 32 vacas da raca Holandes diagnosticadas com mastite clinica leve (n=18, leite coagulado) e mastite clinica moderada (n=14, leite coagulado e sinais clinicos). Dentro de cada categoria, os animais foram separados em dois grupos: Controle (CON, n=15) que recebeu tres aplicacoes por via intravenosa (IV) de placebo (NaCl 0,9%) 0,1 mL/kg de Peso Vivo (PV) e Grupo Tratado (GT/BFC, n=17) que recebeu tres aplicacoes IV de 10 mg de butafosfan + 5 µg de cianocobalamina/kg de PV (Catosal ® B 12 , Bayer Animal Health) a cada 5 dias. Amostras de sangue foram coletadas apos a ordenha, sendo 12 h antes e 12 e 36 h apos a aplicacao dos tratamentos, para analise de glicose, albumina, proteinas plasmaticas totais (PPT) e acidos graxos nao esterificados (AGNEs). Amostras individuais de leite foram coletadas 12 h antes, no momento da aplicacao (0 h) e 12, 24 e 36 h apos a realizacao dos tratamentos, para analise de proteina, caseinas totais, lactose, gordura, solidos totais, ureia, pH, crioscopia, densidade e contagem de celulas somaticas (CCS). A CCS no grupo GT/BFC foi menor (p=0,02) apos a terceira aplicacao de BFC. O peso corporal, niveis de glicose, albumina, PPT, AGNEs e os parâmetros do leite nao diferiram entre os grupos. A associacao de butafosfan e cianocobalamina apos o tratamento de mastite clinica pode contribuir para a reducao da contagem de celulas somaticas do leite, tendo um papel importante no processo de recuperacao da glândula mamaria.