Miracle-dz/UniFAR-FTUs huggingface dataset:
High-Temperature Characterization of Inorganic Particles and Vapors in a Circulating Fluidized Bed Boiler Cofiring Wood and Rubber Waste

The effects of varying fuel mixtures and using a lime additive were studied in a 125-MWth circulating fluidized bed boiler. A high-temperature aerosol measurement method using a hot-dilution probe was used to characterize the particles and condensing inorganic vapors upstream from the superheater. The particle size distributions of the extracted samples indicate that when high-sulfur rubber waste, waste wood, and forest fuel were cocombusted, the hot flue gas contained no substantial amount of particulate matter in the fine (<0.3 μm) particle size range, although the SO2 concentration exceeded 70 ppm. Only a nucleation mode was observed, which was presumably formed from inorganic vapors that condensed in the sampling probe. The size-segregated elemental analysis of the extracted samples indicated that when lime was added, the nucleation mode mainly comprised condensed alkali chlorides, while the sulfates dominated the mode when no lime was added. The presumed explanation for the sulfates in the nucleation.
Student’s Awareness and Perception on B40 Income Group Empowerment Program

B40 income group empowerment is one of the initiatives taken by the Malaysian government to improve the people’s wellbeing. Various policies and program have implemented for the purpose. This study aims to examine students’ awareness and perception on government’s B40 empowerment efforts. Primary data are collected from 596 students from secondary school and higher education to reveal students’ awareness on B40 and their perception on B40 empowerment. Binary logistic regression and ordinal logistic regression are applied to further investigate factors that affecting students’ awareness and perception. Finding shows that majority of respondents were aware on government’s effort while the results of binary logistic regression shows that diploma students were more likely to aware on government effort compared to form 6 students; T20 students were less aware on government’s effort. The finding also shows that less than one-third of the respondents agreed that government’s efforts are effective. The ordinal regression analysis confirms that students’ perception were not affected by gender, education level, study field and income group. The findings of this study provide an overview for government on their B40 empowerment effort. Awareness on the effort should be increased so that more people can benefit from the effort.
Protective effect of oat (Avena sativa) bran extracts on acute hepatic liver damage in mice

ABSTRACT Oat (Avena sativa) bran, a by-product during oat grain processing, is a excellent source of fibre, vitamins and phytochemicals. The health benefits of dietary fibre have long been established. In the present study, the antioxidant and hepatoprotective effects of oat bran extracts were investigated. The extracts showed strong 1,1-diphenyl-2-picryl-hydrazyl (DPPH), 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), hydroxyl, superoxide radicals scavenging and reducing power activities in vitro. In addition, the extracts (50 mg/kg mouse) significantly reduced the levels of malondialdehyde and hepatic damage marker enzymes (aspartate transaminase and alanine transaminase), proinflammatory cytokines as well as elevated SOD, CAT, and GPx enzymes expressions in LPS-treated (1 mg/kg body weight) BALB/c mice. Therefore, the present study strongly suggests that both oat bran extracts could be excellent raw materials for manufacturing functional food due to its protective effect on hepatic liver damage and excellent antioxidant activity. GRAPHICAL ABSTRACT
Dissolved Organic Matter Contains Previously Unidentified Protein-like Fluorophores in Old Woman Creek

0.0 0.2 0.4 0.6 0.8 1.0 Dissolved organic matter (DOM) constitutes a significant carbon pool in the global carbon cycle and is influential in many other processes e.g., altering the fate of contaminants, acting as redox and pH buffers, etc. DOM in the aqueous environment originates from sources ranging from autochthonous (microbial) to allochthonous (terrestrial) precursors. Lake Fryxell Fulvic Acid (LFFA) and Pony Lake Fulvic Acid (PLFA) represent Antarctica derived microbial end-member standards and Suwannee River Fulvic Acid (SRFA) represents a terrestrial end-member standard (origin in the Okeefenokee Swamp, GA). McKnight et al. (2001) developed a fluorescence index (FI) to determine DOM precursor material. The FI for the corrected spectra is calculated by determining the ratio between emission intensities at 470nm and 520nm at an excitation wavelength of 370nm. The FI for the uncorrected spectra is calculated by determining the ratio between emission intensities 450nm and 500nm at an excitation wavelength of 370nm. McKnight et al., (2001) noted that microbial DOM has more sharply defined intensity maxima at lower excitation and emission wavelengths. The isolation of DOM from natural waters is a common practice to preserve and concentrate DOM, yet the extraction method may significantly alter its composition. This study explores the characteristics of DOM collected from Old Woman Creek (OWC) National Estuarine Research Reserve, located in Huron, Ohio, isolated using PPL solid phase extraction (SPE). Previous DOM extraction methods such as C-18 or XAD-8 are limited to hydrophobic compounds, while the novel PPL SPE cartridges can capture more polar and non-polar components. PPL and previously collected XAD-8 isolated OWC DOM was characterized using fluorescence spectroscopy. Fluorescence analysis revealed protein-like components not present in previously collected XAD-8 isolated OWC DOM, demonstrating the significance of extraction method on the composition and potential reactivity of isolated DOM.
Charge and exciton transport through molecular wires

INTRODUCTION: MOLECULAR ELECTRONICS AND MOLECULAR WIRES Introduction Single-Molecule Devices Transport of Charges and Excitons in Molecular Wires PART I: Molecules between Electrodes QUANTUM INTERFERENCE IN ACYCLIC MOLECULES Introduction Theoretical Methods Interference in Acyclic Cross-Conjugated Molecules Understanding Interference in Model Systems Using Interference for Devices Probing the Limits of Calculations: Important Real-World Phenomena Conclusions HOPPING TRANSPORT IN LONG CONJUGATED MOLECULAR WIRES CONNECTED TO METALS Introduction Charge Transport Mechanisms Oligophenylene Imine Molecular Wires: A Flexible System for Examining the Physical Organic Chemistry of Hopping Conduction in Molecules Outlook: Probing the Physical Organic Chemistry of Hopping Conduction PART II: Donor-Bridge-Acceptor Systems TUNNELING THROUGH CONJUGATED BRIDGES IN DESIGNED DONOR-BRIDGE-ACCEPTOR MOLECULES Introduction Through-Bond Electronic Coupling in Pi-Conjugated Bridges Conclusions BASE PAIR SEQUENCE AND HOLE TRANSFER THROUGH DNA: RATIONAL DESIGN OF MOLECULAR WIRES Introduction Spectral Signatures of Charge Transfer Charge Injection into A-Tracts Crossover from Superexchange to Hopping in Sa--An--Sd Symmetry Breaking in Sa--An--Sa Influence of a Single G on Charge Transport Molecular Wire Behavior in Sa--A2-3G1-7--SD Charge Transfer through Alternating Sequences Theoretical Descriptions of Charge Transfer through DNA Conclusion CHARGE TRANSPORT THROUGH MOLECULES: ORGANIC NANOCABLES FOR MOLECULAR ELECTRONICS Introduction Theoretical Concepts Charge Transport along Pi-Conjugated Bridges in C60-Containing Donor-Bridge-Acceptor Conjugates Conclusion PART III: Charge Transport through Wires in Solution ELECTRON AND EXCITON TRANSPORT TO APPENDED TRAPS Introduction Experimental Methods to Investigate Transport to Appended Traps Results on Transport to Traps Comparison and Perspectives ELECTRON LATTICE DYNAMICS AS A METHOD TO STUDY CHARGE TRANSPORT IN CONJUGATED POLYMERS Introduction Methodology Results Summary CHARGE TRANSPORT ALONG ISOLATED CONJUGATED MOLECULAR WIRES MEASURED BY PULSE RADIOLYSIS TIME-RESOLVED MICROWAVE CONDUCTIVITY Introduction Pulse-Radiolysis Time-Resolved Microwave Conductivity Mechanisms for Charge Transport along Conjugated Chains The Meaning of the Mobility at Microwave Frequencies Charge Transport along Ladder-Type PPP Effect of Torsional Disorder on the Mobility Effect of Chain Coiling on the Mobility of Charges Supramolecular Control of Charge Transport along Molecular Wires Summary and Outlook PART IV: Exciton Transport through Conjugated Molecular Wires STRUCTURE PROPERTY RELATIONSHIPS FOR EXCITON TRANSFER IN CONJUGATED POLYMERS Introduction Signal Gain in Aplifying Fluorescent Polymers Directing Energy Transfer within CPs: Dimensionality and Molecular Design Lifetime Modulation Conformational Dependence on Energy Migration: Conjugated Polymer-Liquid Crystal Solutions Conclusions
Tolerance aux stress des peupliers transformes surexprimant la fe-superoxyde dismutase, la gamma-glutamylcysteine synthetase ou la glutathion synthetase

L'enzyme superoxide dismutase (sod) et le tripeptide glutathion participent du systeme de protection contre la surproduction des especes actives d'oxygene, qui peut se produire sous des conditions de stress. L'approche de transformation genetique a ete utilisee pour etudier la fe-sod et les enzymes de la voie de synthese du glutathion (-ecs et gs). Le peuplier a ete transforme pour obtenir la surexpression de la fe-sod dans le chloroplaste, la gs dans le chloroplaste, et la -ecs dans le cytosol ou dans le chloroplaste. Des anticorps contre -ecs et gs ont ete produits pour faciliter la criblage des plantes transformees et pour verifier la localisation de la proteine. Les peupliers surexprimant la fe-sod dans le chloroplaste presentent une forte activite fe-sod. Concernant la reponse de la photosynthese, quand la concentration en co#2 est basse le quenching photochimique de ces peupliers est plus eleve que celui des peupliers non transformes. On suggere que la sur-reduction du psii est evite dans cette situation chez les plantes surexprimant la fe-sod. Concernant la tolerance au stress, le peuplier transforme est plus resistant au paraquat, par contre, les traitements a forte lumiere effectue a differentes temperatures et concentrations d'oxygene provoquent des diminutions similaires du rapport fv/fm chez les peupliers transformes ou non. Les peupliers surexprimant la -ecs dans le cytosol ou dans le chloroplaste presentent une activite -ecs elevee et des concentrations augmentees en -glutamylcysteine et glutathion, par contre les peupliers surexprimant la gs dans le chloroplaste n'ont pas d'augmentation de teneurs en thiols, meme si l'activite gs est beaucoup augmentee. Ces resultats montrent que l'activite -ecs endogene est un facteur limitant de la concentration foliaire du glutathion et que l'activite gs est en exces relatif chez les peupliers non transformes. Chez les plantes surexprimant la -ecs, il a ete montre que la glycine utilisee pour la synthese du glutathion est fournie par la photorespiration.
Étude des métaux par microscopie électronique en transmission (MET) - Microscope, échantillons et diffraction

La microscopie electronique a transmission (MET), en donnant de l’objet mince une image globale avec une resolution meilleure qu’un dixieme de nanometre, est une des techniques qui permettent l’etude des materiaux a l’echelle nanometrique. Elle est basee sur le fait que les electrons sont des particules chargees dont les trajectoires sont modifiables par l’action de champs magnetiques et electrostatiques. Apres un descriptif de l’appareil, cet article expose les differentes methodes de preparation des echantillons. Sont ensuite exposees les parametres et les choix techniques existants lors de l’utilisation d’un MET, ainsi que les problemes frequemment rencontres. Pour terminer, est introduite la methode de diffraction en faisceau convergent.
Zervikale Lymphadenitis durch atypische Mykobakterien bei Kindern mit unterschiedlichem Wohnsitz

Zusammenfassung Hintergrund Die atypischen Mykobakterien stellen eine inhomogene Gruppe dar. Obwohl mehr als 140 Spezies identifiziert wurden, stehen nur 25 mit der atypischen Mykobakteriose beim Menschen in Beziehung. Die häufigste Manifestation bei immunkompetenten Kindern ist die zervikale Lymphadenitis. Das Ziel der vorliegenden Arbeit ist die Korrelation des Lebensraums mit den Patientendaten und dem Krankheitsbild, die Auswertung der sonografischen Befunde und der operativen Therapiemethoden und die Erstellung eines Diagnose- und Therapiealgorithmus. Material und Methoden Die Patienten wurden nach einer systematischen Suche in der klinischen, mikrobiologischen und pathologischen Datenbank der HNO-Klinik identifiziert. Eine statistische Analyse der Ergebnisse wurde durchgeführt. Ergebnisse 32 Patienten wurden ausgewertet. Eine signifikante Korrelation zwischen dem Wohnort und der Manifestation oder dem Verlauf der Erkrankung konnte nicht nachgewiesen werden. Echoarme Lymphknoten mit intraglandulärer Nekrose und niedriger Durchblutung wurden bei der Mehrheit der Patienten beobachtet. Die verwendeten operativen Methoden schlossen die Abszessinzision mit Biopsie, die diagnostische Lymphadenektomie, die selektive Neck-Dissection und die laterale Parotidektomie ein. Die Rezidivrate war signifikant höher nach Abszessinzision als nach Lymphadenektomie oder selektiver Neck-Dissection. Schlussfolgerungen Um den Einfluss des Wohnsitzes auf das Krankheitsbild deutlich zu definieren, sind größere prospektive Studien notwendig. Die sonografischen Befunde sind diagnostisch wegweisend. Eine vollständige Resektion trägt zur Diagnose und Therapie bei und stellt eine risikoarme Therapieoption dar.
Frequency of Human Papillomavirus Types in Women with Genital Warts by Probe-based Real-time PCR

The second most common cancer and the fourth leading cause of death in women is cervical cancer. In 90% of cases of human papillomavirus infections, HPV is the cause of this cancer. More than 200 different types of the virus have been identified, including low-risk and high-risk variants. According to statistics, infections from types 16 and 18 of the virus account for 70% of cervical cancers. This cancer is preventable, and one of the ways to prevent it is to have regular screenings. Probe-based real-time PCR methods are more accurate and sensitive methods for detection. In this study, we performed HPV typing with probed base real-time PCR in 50 genital wart samples and checking the relationship between questionnaire information.
Recognition and Analysis of Behavior Features of School-Age Children Based on Video Image Processing

School-age children have vastly different behavior features from adults. Most of the relevant studies are theoretical summaries of behavior features of these children, failing to detect the behaviors or recognize the behavior features in an accurate manner. To solve the problem, this paper puts forward a novel method to recognize the behavior features of school-age children through video image processing. Firstly, the authors designed a method to extract static behavior features of school-age children from surveillance video images. Next, the behavior features of school-age children were extracted by optical flow method. On this basis, a dual-network flow neural network (DNFNN) was designed, in which the time flow network processes the dense optical flow of multiple continuous frames of the surveillance video, while the spatial flow network treats the region of interest (ROI) in the static frame from the video. After that, the workflow of the DNFNN was introduced in details. Experimental results fully demonstrate the effectiveness of the proposed network. The research findings provide a reference for the application of video image processing to behavior recognition in other fields.
Finding the Gaps about Uses of Immersive Learning Environments: A Survey of Surveys

Advancing the field of research in Immersive Learning Environments requires avoiding the pitfalls of previous educational technologies. Studies must consider the actual use of these environments and the context where it occurs, not simply the technocentric perspectives on these environments. This paper provides an overview and analysis of surveys on this topic, in order to map the field and find out which information on actual uses of Immersive Learning Environments are reported, and hence which gaps need to be covered towards a robust, encompassing knowledge on their relationship with learning. Collected accounts of use were clustered via thematic analysis and contrasted with research areas in learning and technology, highlighting the gaps in the field and serving as a blueprint for research agendas on uses of immersive learning environments.
Efficient Procedure for Pre-Column Derivatization of Fatty Acids with Emphasis on Short-Chain Carboxylic Acids

An original derivatization method for short-chain carboxylic acids (SCAs), including volatile fatty acids (VFAs), lactic and succinic acids, followed by revesed-phase (RP) HPLC with photodiode array detection has been described. Initially, all acids present in the samples were converted into sodium salts (RCOONa); then, derivatization of RCOONa was carried out with an excess of2,4-dibromoacetophenone and triethylamine. Under such conditions, all acids were converted into derivatives with chromophoric groups. Their high molar absorptivity and absorbance maximum located close to 259 ± 2 nm make them ideally suited for RP-HPLC analysis with UV detection. All derivatized acids were substantially retained on the C 18 column. The proposed procedure provides a simple and sensitive analytical tool for quantification of SCAs, especially VFAs, in biological samples. As acid derivatization is carried out at 45 + 2°C for only 60 min, the proposed procedure can be used for determination of polyunsaturated fatty acids.
A 9-Bit Vector-Sum Digital Phase Shifter Using High Resolution VGAs and Compensated Quadrature Signal Generator

In this paper, a 90–98 GHz vector-sum digital phase shifter with high phase accuracy and low power consumption is presented for W-band phased-arrays. The proposedphase shifter is based on a quadrature all-pass filter (QAF) and four identical variable gain amplifiers (VGAs) with 7-bit current-digital to analog converters (I-DACs). To eliminate the parasitic loading capacitance influence of the VGAs on the QAF, a inductor-based compensation network is utilized. Then, specific phase shifting could be obtained. Meanwhile, the digital pre-distortion (DPD) technology is used to further improve the phase error performance. To verify the mechanisms mentioned above, a W-band digital phase shifter is implemented and fabricated in a 40-nm CMOS technology with a core size of 0.058 mm2. The measured results after DPD exhibit the root mean square (RMS) amplitude error of 0.67-1.23 dB and RMS phase error of 0.60°-0.71° from 90 to 98 GHz. Additionally, the phase shifter features an average gain of -1.29 dB at 92.1 GHz with a power consumption of 14 mW from 1.1 V supply.
The Association between Noise Annoyance and General Health among Iranian Nurses at Tabriz Pediatric Hospital

Article Info Background: This study aimed to measure the sound level and assess the association between noise annoyance and general health in Iranian nurses at Tabriz Pediatric Hospital in neonatal, infectious, internal, NICU, and emergency care wards. Materials and Methods: The noise level was measured continuously according to ISO9612. The general health questionnaire-28, the noise annoyance scale based on ISO15666, and demographic characteristics were the questionnaires used in this study. The study was conducted at Tabriz specialty and subspecialty Hospital for children, which includes different care wards and admits many patients to the hospital. Results: The highest 24-hour mean noise level (dBA) was measured in the emergency (69.65±1.68) ward. The highest mean noise level during the morning, afternoon, and night shifts belonged to the emergency ward at 69.53±0.27, 69.30±0.39, and 69.85±0.43, respectively. According to the results, the association between the equivalent sound exposure level and noise annoyance was significant. The highest mean score of the total GHQ (39.78 ±12.01) was obtained in the emergency ward, and the lowest mean score (30.20 ±7.15) was obtained in the neonatal ward. The rassociation between the total scale of GHQ-28 and GHQ-28 subscales was significantly positive in all wards. Conclusion: The mean of the LAeq (dBA), in different wards of the studied hospital, was higher than the levels suggested by the US-EPA, the WHO, the AAP, and the national standard. Accordingly, since the mentioned wards play a vital role in treatment procedures, effective management–technical noise reduction measures are required to be adopted in these wards.
ArborX

Searching for geometric objects that are close in space is a fundamental component of many applications. The performance of search algorithms comes to the forefront as the size of a problem increases both in terms of total object count as well as in the total number of search queries performed. Scientific applications requiring modern leadership-class supercomputers also pose an additional requirement of performance portability, i.e., being able to efficiently utilize a variety of hardware architectures. In this article, we introduce a new open-source C++ search library, ArborX, which we have designed for modern supercomputing architectures. We examine scalable search algorithms with a focus on performance, including a highly efficient parallel bounding volume hierarchy implementation, and propose a flexible interface making it easy to integrate with existing applications. We demonstrate the performance portability of ArborX on multi-core CPUs and GPUs and compare it to the state-of-the-art libraries such as Boost.Geometry. Index and nanoflann.
LIBERAÇÃO DE MACRONUTRIENTES DE RESÍDUOS DO CONSÓRCIO ENTRE MUCUNA PRETA E MILHO SOB SISTEMA ORGÂNICO DE PRODUÇÃO.

A avaliacao da decomposicao dos residuos vegetais adicionados ao solo pelas plantas de cobertura permite melhor compreensao da oferta de nutrientes as culturas comerciais. O objetivo do trabalho foi o de avaliar a decomposicao dos residuos e a liberacao de N, P e K em sistema plantio direto (SPD) e sistema de plantio convencional (SPC). A decomposicao da materia seca e a liberacao de nutrientes foram monitoradas por meio de coletas dos residuos aos 10, 20, 29, 36, 65, 103 dias apos a adicao das sacolas de decomposicao. A producao de biomassa seca de mucuna + milho foi 8,14 Mg ha-1 e 7,63 Mg ha-1 em SPD e SPC respectivamente. Ao final do primeiro mes, da instalacao dos litter bags, cerca de 42% da materia seca inicial da mucuna+milho permanecia nas areas onde adotou-se o SPD e cerca de 45% em SPC. Aproximadamente 75% do N em SPD e 70% em SPC, 85% do P e 85% de K foram liberados 20 dias apos a introducao das bolsas de decomposicao no solo em ambos os sistemas. Os T1/2 da massa seca remanescente diferiram estatisticamente entre os sistemas avaliados. Ambos os sistemas de manejo de solo apresentaram elevada taxa de liberacao de N, P e K. Palavras chaves: decomposicao, residuos culturais, plantio direto.
Scaling laws in the drier

conformations — right- and left-handed mirror images of each other, known as enantio-mers. Such molecules crystallize primarily in one of two forms: as a ‘racemate, me’ aning that the crystal is an ordered arrangement of equal numbers of both enantiomers; or as two sets of distinct enantiomorphic crystals, each con-taining only left-handed molecules or only right-handed molecules. The most famous example of this second process is Louis Pasteurs’ seminal discovery of the spontaneous separation of sodium ammonium tartrate into left- and right-handed crystals