showing 36 of ~574560 from 574555 documents
Measurement of the H2(p,γ)He3 S factor at 265–1094 keV
2021
Recent astronomical data have provided the primordial deuterium abundance with percent precision. As a result, big bang nucleosynthesis may provide a constraint on the universal baryon to photon ratio that is as precise as, but independent from, analyses of the cosmic microwave background. However, such a constraint requires that the nuclear reaction rates governing the production and destruction of primordial deuterium are sufficiently well known. Here, a new measurement of the $^{2}\mathrm{H}{(p,\ensuremath{\gamma})}^{3}\mathrm{He}$ cross-section is reported. This nuclear reaction dominates the error on the predicted big bang deuterium abundance. A proton beam of 400--1650 keV beam energy…
Philosophy’s treason: studies in philosophy and translation
2021
Translation remains marginal to academic discourses, but, like dark matter, the God of the Gnostics, or Jacques Derrida's supplement, it affects everything from the margins. One may thus be unsurpr...
Manuscript vs cursive writing. Learning to write in primary education
2021
For the proper development of writing, teachers must choose the best line for their students. To this day, it is still not very clear which is the correct or the most suitable letter for the beginn...
Rūdolfs Jurciņš un Beveronija
2021
Raksts tapis sadarbībā ar LU Fonda stipendiāti Anniju Pozņaku, lai popularizētu LU vēsturi studentu vidē. Raksta centrā ir izcils sportists, leģendārs latviešu basketbolists, latviešu studentu korporācijas "Beveronija" loceklis Rūdolfs Jurciņš, kurš bija Latvijas Basketbola izlases kapteinis 1935. gada Eiropas pirmajā Basketbola čempionātā Ženēvā, Šveicē. Basketbola izlases kapteinis aizveda Latviju līdz pirmajam Eiropas Basketbola čempiona titulam, uzvarot Spāniju finālā. Abi autori analizē divus aspektus - Annija sporta, Rūdolfs korporatīvo aspektu.
Fatness and Consequences of Neoliberalism
2021
My aim in this chapter is to inspect how neoliberal economic policy and rationale are enmeshed with conceptions of body, gender and health in the contemporary (primarily Western) cultural sphere and how they have been addressed in research literature, particularly concerning fatness and the fat body. In recent years, the fat body has been and is a target of intensifying biopolitical control. My point of departure is that different elements of neoliberal culture have found something to latch onto and exploit in the concept of the fat body. Social institutions such as health care policies; or structures, such as health care systems; not to mention social, moral, and political orders of the da…
IDENTIFIKASI KAWASAN NILAI KONSERVASI TINGGI 4 (NKT 4) DI DAERAH ALIRAN SUNGAI WAFOR, KABUPATEN SUPIORI, PROVINSI PAPUA
2021
Salah satu atribut dalan NKT adalah Kawasan yang memberikan jasa ekosistem dasar pada situasi yang kritis atau sangat penting. Suatu wilayah dapat dipertimbangkan sebagai NKT 4 jika berperan dalam melindungi atau menyediakan jasa ekosistem mendasar dalam situasi penting, termasuk perlindungan daerah tangkapan air dan kontrol erosi pada tanah rentan dan lereng. Saat ini telah dilakukan penilaian keberadaan NKT 4 Daerah Aliran Sungai (DAS) Wafor yang berada di Distrik Supiori Timur, Kabupaten Supiori, Provinsi Papua. Sungai-sungai di DAS Wafor dimanfaatkan oleh masyarakat lokal sebagai sumber air bersih. Sungai Wafor memiliki rasio relief rata-rata antara 0.04, namum dibeberapa tempat terutam…
PEMBUATAN SISTEM VAKUM OTOMATIS GAS H2S BERBAHAN TiO2-Ni/Al2O3 TERKONEKSI ARDUINO UNO PADA LABORATORIUM KIMIA
2021
Research has been carried out on the H2S gas sensor made of TiO2-Ni/Al2O3 which is connected to an automatic vacuum. The results showed that the optimum conditions for the variation of Ni doping metal levels were 20 mg / gram TiO2. The semiconductor material synthesis method used the sol gel method with TTiP precursor which was made at pH 7. Coating of the sol gel solution on the Al2O3 substrate used a dip coater with a decrease speed of 1 cm / minute and was carried out 7 times of immersion. The characterization of synthetic results used UVVis, XRD, FTIR and SEM-EDX. The band gap value resulting from Ni doping is 2.75 eV from 3.2 eV, XRD identification shows that TiO2 is anataseic and dete…
Two light sensors decode moonlight versus sunlight to adjust a plastic circadian/circalunidian clock to moon phase
2021
AbstractMany species synchronize their physiology and behavior to specific hours. It is commonly assumed that sunlight acts as the main entrainment signal for ~24h clocks. However, the moon provides similarly regular time information, and increasingly studies report correlations between diel behavior and lunidian cycles. Yet, mechanistic insight into the possible influences of the moon on ~24hr timers is scarce.We studiedPlatynereis dumeriliiand uncover that the moon, besides its role in monthly timing, also schedules the exact hour of nocturnal swarming onset to the nights’ darkest times. Moonlight adjusts a plastic clock, exhibiting <24h (moonlit) or >24h (no moon) periodicity. Abun…
Socio-behavioral factors, oral hygiene level and periodontitis prevalence in a 35-44-year-old Greek adult population: A cross-sectional survey
2021
Background Sub-optimal oral hygiene is considered as a primary risk factor for periodontitis occurrence. Various socio-behavioral determinants may contribute either independently or by influencing adversely the oral hygiene (OH) level. The aim of the present study was to examine the periodontal status of 35-44-year-old Greek adults and determine the contribution of risk indicators, including the socio-behavioral aspects and the population's oral hygiene level, on disease prevalence. Material and methods In 1218 participants, Community Periodontal Index (CPI), Loss of Attachment (LoA) and simplified Oral Hygiene Index (OHI-S) were calculated. Multivariable regression models examined the effe…
SPATIAL PATTERNS OF VOTING IN BUCHAREST AT THE EUROPEAN AND PRESIDENTIAL ELECTIONS OF 2019
2021
Impacts of electricity pricing on techno-economic performance of photovoltaic-battery centered microgrid
2021
The energy management technique in a microgrid, plays very crucial role for making it more economic viable during the electricity energy pricing dynamics. It is vital to investigate the impact of e...
POTENSI KITOSAN DARI LIMBAH CANGKANG UDANG Penaeus monodon ASAL BINTUNI SEBAGAI BIOSORBEN LIMBAH ORGANIK DAN LOGAM BERAT PADA LIMBAH CAIR PLTD MANOKW…
2021
The purpose of this research is to study the potency of chitosan synthesis of shrimp shells from Bintuni as a biosorbent of organic compound and heavy metal compound. The main procedure of chitosan synthesis is completed by insulating chitin from shrimp shells and then chitin is deacetilated to transform chitin to be chitosan. The wastewater were characterized to know the concentration of Total Organic Carbon (TOC), fat oil, and Zinc metal and studied the adsorption of each compound at 0,1; 0,5; 1; 2g dosage chitosan. Adsorption study result showed that chitosan can adsorb the fuel oil and Zinc metal which contained in wastewater. However, it was not adsorb the TOC compound. The yield of…
Interferometric Z-scan method for thermo-optical effect studies
2021
We demonstrated a new approach to measuring third-order nonlinear optical effects using an experimental setup incorporating both Z-scan and Mach-Zehnder interferometer methods. This method could be especially purposive for thermo-optical effect studies as it can simultaneously probe thermal gradient profile as well as absolute temperature changes induced by an optical beam. The experimental setup was tested using chloroform. Experimental measurements were carried out using 1064 nm Nd:YAG laser with 8 ns pulse width and 40 kHz pulse repetition rate. The measured nonlinear refractive index of chloroform was mainly induced by the thermo-optical effect. As thermo-optical response depends on bea…
VARIASI KUAT MEDAN MAGNET DAN DAYA LISTRIK INPUT TERHADAP KARAKTERISTIK MOTOR LISTRIK DC DUA KUTUB
2021
Penelitian tentang variasi medan magnet dan daya listrik input terhadap karakteristik motor listrik DC bertujuan untuk mengetahui pengaruh kuat medan magnet dan pengaruh besar daya listrik input terhadap RPM, efisiensi, dan torsi motor listrik DC serta mengetahui pengaruh kuat medan magnet permanen terhadap daya listrik input. Penelitian ini merupakan penelitian eksperimen, yang dimulai dengan pembuatan alat, pengambilan data, kemudian pengolahan data. Dalam pengambilan data, data yang diukur adalah tegangan listrik input, tegangan listrik output, arus listrik input, arus listrik output dan RPM. Hasil dari pengolahan data diperoleh bahwa setiap penambahan jumlah magnet akan menyebabkan RPM …
PERANCANGAN ALAT TIMBANGAN DIGITAL BERBASIS ARDUINO LEONARDO MENGGUNAKAN SENSOR LOAD CELL
2021
Kemajuan teknologi membawa perubahan pada peralatan-peralatan yang dahulu bekerja secara analog, mulai dikembangkan dengan teknik digital dan bahkan yang bekerja secara manual sekarang mulai banyak dikembangkan secara otomatis, seperti halnya alat timbang digital. Timbangan digital merupakan alat ukur untuk mengukur massa benda atau zat dengan tampilan digital. Penelitian ini dibuat dengan tujuan menghasilkan sebuah alat timbangan digital berbasis board Arduino Leonardo. Arduino Leonardo telah terintegrasi dengan mikrokontroler Atmega32u4, menggunakan load cell sebagai sensor beban dengan tampilan nilai beban menggunakan LCD jenis 16 x 2 sehingga hasil pengukuran dapat lebih mudah dibaca …
European comission's identity during brexit : a communication strategy change on twitter
2021
The European Union (EU) was founded to promote peace, prosperity and other values between an increasing number of member states (European Commission, 2001). However, Brexit has activated a reputation crisis that reinforces Euroscepticism (Borzel; Risse, 2018). The objective of the study is to identify the differences in the semantic construction and thematic framing of the European Commission during a two-year period, previous to Brexit and after Brexit, on a sample of 4827 tweets posted by the European Commission. Findings show that in the period before Brexit, the EU is presented as an abstract political body, highly informative on major crisis, and reactively framing messages with values…
Europium(III), Terbium(III), and Gadolinium(III) Oxamato-Based Coordination Polymers: Visible Luminescence and Slow Magnetic Relaxation
2021
The reaction of aqueous solutions of EuIII, TbIII, and GdIII ions with Na2Hpcpa [H3pcpa = N-(4-carboxyphenyl)oxamic acid] afforded three new isostructural oxamate-containing lanthanide(III) coordination polymers of general formula {LnIII2(Hpcpa)3(H2O)5·H2O}n [Ln = Eu (1),Tb (2), and Gd(3)]. Their structure is made up of neutral zigzag chains running parallel to the [101] direction where double syn-syn carboxylate(oxamate)-bridged dilanthanide(III) pairs (Ln1 and Ln2) are linked by three Hpcpa2- ligands, one of them with the μ-κ2O,O':κO″ coordination mode and the other two with the μ3-κ2O,O':κO″:κO'''. Additionally, two of those chains are interlinked through hydrogen bonding and π-π type in…
The Oppel-Kundt Illusion and Its Relation to Horizontal-Vertical and Oblique Effects.
2021
The Oppel–Kundt illusion consists in the overestimation of the length of filled versus empty extents. Two experiments explored its relation to the horizontal-vertical illusion, which consists in the overestimation of the length of vertical versus horizontal extents, and to the oblique effect, which consists in poorer discriminative sensitivity for obliquely as opposed to horizontally or vertically oriented stimuli. For Experiment 1, Kundt’s (1863) original stimulus was rotated in steps of 45° full circle around 360°. For Experiment 2, one part of the stimulus remained at a horizontal or vertical orientation, whereas the other part was tilted 45° or 90°. The Oppel–Kundt illusion was at its …
Real-life evaluation of a rapid extraction-free SARS-CoV-2 RT-PCR assay (COVID-19 PCR Fast-L) for the diagnosis of COVID-19.
2021
Myeloid and T-Cell Microenvironment Immune Features Identify Two Prognostic Sub-Groups in High-Grade Gastroenteropancreatic Neuroendocrine Neoplasms
2021
High-grade Gastroenteropancreatic Neuroendocrine neoplasms (H-NENs) comprehend well-differentiated tumors (NET G3) and poorly differentiated carcinomas (NEC) with proliferative activity indexes as mitotic count (MC) >
false
2021
This retrospective population-based study examined the impact of age and comorbidity burden on multimodal management and survival from colorectal cancer (CRC). From 2000 to 2015, 1479 consecutive patients, who underwent surgical resection for CRC, were reviewed for age-adjusted Charlson comorbidity index (ACCI) including 19 well-defined weighted comorbidities. The impact of ACCI on multimodal management and survival was compared between low (score 0–2), intermediate (score 3) and high ACCI (score ≥ 4) groups. Changes in treatment from 2000 to 2015 were seen next to a major increase of laparoscopic surgery, increased use of adjuvant chemotherapy and an intensified treatment of metastatic dis…
Hydrothermal ageing of fibre metal laminates made of flax fibres
2021
International audience; In the past two decades, fibre metal laminates (FMLs) have been widely used to manufacture aircraft and aerospace components. FMLs are hybrid composite structures based on thin sheets of metal alloys reinforced by organic matrix composites (Sinmazçelik et al., 2011). When compared to mono-material solutions, FMLs provide added functionalities such as high specific bending strength, fatigue resistance, acoustical absorption, vibration transmissibility and damping characteristics. They overcome most of the limitations of metal and polymeric reinforced composites. The first generation of FMLs was based on thermoset resins. To shorten the process cycle times, lower the p…
LGB´s Arts Affinity: An Empirical Study of Theater Audiences Based on Motivations
2021
The extended belief of gay people being more creative and showing higher interest toward arts lacks robust empirical support. The pioneer study on this issue highlighted that LGB´s arts participation was mostly explained by demographic factors such as level of studies, residence and family situation, which suggests that differences due to sexual orientation tend to fade. In this paper, we put forward the hypothesis that sexual orientation influences motivations to participate, which emphasizes their role and heterogeneity. To do so, we conducted a survey on participants at an alternative performing arts festival collecting information on socio-demographics, including sexual orientation, mot…
Single intracerebroventricular progranulin injection adversely affects the blood–brain barrier in experimental traumatic brain injury
2021
Progranulin (PGRN) is a neurotrophic and anti-inflammatory factor with protective effects in animal models of ischemic stroke, subarachnoid hemorrhage, and traumatic brain injury (TBI). Administration of recombinant (r) PGRN prevents exaggerated brain pathology after TBI in Grn-deficient mice, suggesting that local injection of recombinant progranulin (rPGRN) provides therapeutic benefit in the acute phase of TBI. To test this hypothesis, we subjected adult male C57Bl/6N mice to the controlled cortical impact model of TBI, administered a single dose of rPGRN intracerebroventricularly (ICV) shortly before the injury, and examined behavioral and biological effects up to 5 days post injury (dp…
Graphical and Analytical Quantitative Comparison in the Domes Assessment: The Case of San Francesco di Paola
2021
(1) Methods for checking the condition of monumental masonry structures can still be considered understudied. Among the different approaches available in the literature, the graphical ones have a special role, due to their simplicity and effectiveness. (2) In this work, a 2D method (Thrust Line Analysis (TLA)), the Modified Thrust Line Method (MTLM), and the 3D Membrane Equilibrium Analysis (MEA) method are compared. All methods have the same starting concept: no tensile strength, no sliding between the stone blocks, infinite compressive strength. (3) The methods are compared in terms of stress distribution (for the same—or similar—thrust line), and in terms of the Geometrical Safety Factor…
Phytochemical inhibitors of the NLRP3 inflammasome for the treatment of inflammatory diseases
2021
The NLRP3 inflammasome holds a crucial role in innate immune responses. Pathogen- and danger-associated molecular patterns may initiate inflammasome activation and following inflammatory cytokine release. The inflammasome formation and its-associated activity are involved in various pathological conditions such as cardiovascular, central nervous system, metabolic, renal, inflammatory and autoimmune diseases. Although the mechanism behind NLRP3-mediated disorders have not been entirely illuminated, many phytochemicals and medicinal plants have been described to prevent inflammatory disorders. In the present review, we mainly introduced phytochemicals inhibiting NLRP3 inflammasome in addition…
Protein content and lipid profiling of isolated native autophagosomes
2021
AbstractAutophagy is a central eukaryotic catabolic pathway responsible for clearance and recycling of an extensive portfolio of cargoes, which are packed in vesicles, called autophagosomes, and are delivered to lysosomes for degradation. Besides basal autophagy, which constantly degrades cellular material, the pathway is highly responsive to several stress conditions. However, the exact protein content and phospholipid composition of autophagosomes under changing autophagy conditions remain elusive so far. Here, we introduce a FACS-based approach for isolation of native unmanipulated autophagosomes and ensure the quality of the preparations. Employing quantitative proteomics and phospholip…
The Impact of Epigallocatechin Gallate and Coconut Oil Treatment on Cortisol Activity and Depression in Multiple Sclerosis Patients
2021
(1) Background: Multiple sclerosis (MS) is pathogenically characterized by high oxidative stress and symptomatically by progressive muscle loss and increased body fat associated with the presence of depression. Epigallocatechin gallate (EGCG) (particularly present in green tea) and ketone bodies (in particular beta-hydroxybutyrate (BHB)), whose main source is coconut oil, have shown emotional benefits and body fat loss. The aim of this study was to assess the impact of EGCG and coconut oil on cortisol activity related to fat loss and depression in MS patients. (2) Methods: The study involved 51 MS patients who were randomly divided into an intervention group or a control group. The interven…
Histone acetylation regulates the expression of genes involved in worker reproduction and lifespan in the ant Temnothorax rugatulus
2021
In insect societies, the queen monopolizes reproduction while workers perform tasks such as brood care or foraging. Queen loss leads to ovary development and lifespan extension in workers from many ants. However, the underlying molecular mechanisms of this phenotypic plasticity remain unclear. Recent studies highlight the importance of epigenetics in regulating plastic traits in social insects. We investigated the role of histone acetylation in the regulation of worker reproduction in the ant Temnothorax rugatulus. We removed queens from their colonies to induce worker fecundity, and either fed workers with chemical inhibitors of histone acetylation (C646), deacetylation (Trichostatin A), o…
Catalan words avoiding pairs of length three patterns
2021
Catalan words are particular growth-restricted words counted by the eponymous integer sequence. In this article we consider Catalan words avoiding a pair of patterns of length 3, pursuing the recent initiating work of the first and last authors and of S. Kirgizov where (among other things) the enumeration of Catalan words avoiding a patterns of length 3 is completed. More precisely, we explore systematically the structural properties of the sets of words under consideration and give enumerating results by means of recursive decomposition, constructive bijections or bivariate generating functions with respect to the length and descent number. Some of the obtained enumerating sequences are kn…
QUANTITATIVE ANALYSIS OF SPATIAL INDICATORS IN THE CASE OF VARYING ADMINISTRATIVE BOUNDARIES
2021
The aim of the research is to develop methods that would allow comparingthe statistical parameters of Latviaat differing administrative divisions, thereby solvingthe problems that arise in the case of discrepancy of borders. As part of thework, the developed method was implemented in order to assess the suitabilityof the created tool for mathematical analysis of statistical parameters on Latvia. Theterritory examined in the work is Latvia; the discrepancy of borderswas examined by comparing the parish borders of 1935 with the parishes of 2000.Therefore it was necessary to create a transfer matrix in order to link theadministrative borders of both periods. The transfer matrix was prepared in…
Sensitive screening of synthetic cannabinoids using liquid chromatography quadrupole time-of-flight mass spectrometry after solid phase extraction.
2021
Analysis of synthetic cannabinoids still poses a challenge for many institutions due to the number of available substances and the constantly changing drug market. Both new and well-known substances keep appearing and disappearing on the market, making it hard to adapt analytical methods in a timely manner. In this study, we developed a qualitative screening approach for synthetic cannabinoids and their metabolites by means of liquid chromatography quadrupole time-of-flight mass spectrometry (LC-QTOF-MS). Samples were measured in data-dependent auto-MS/MS mode and identified by fragment spectra, retention time and accurate mass. Two established solid phase extractions were compared using fo…
Metabolomics of the tryptophan-kynurenine degradation pathway and risk of atrial fibrillation and heart failure: potential modification effect of Med…
2021
BACKGROUND: The tryptophan–kynurenine pathway is linked to inflammation. We hypothesize that metabolites implicated in this pathway may be associated with the risk of heart failure (HF) or atrial fibrillation (AF) in a population at high risk of cardiovascular disease. OBJECTIVES: We aimed to prospectively analyze the associations of kynurenine-related metabolites with the risk of HF and AF and to analyze a potential effect modification by the randomized interventions of the PREDIMED (Prevención con Dieta Mediterránea) trial with Mediterranean diet (MedDiet). METHODS: Two case–control studies nested within the PREDIMED trial were designed. We selected 324 incident HF cases and 502 incident …
Physiological and oral parameters contribute prediction of retronasal aroma release in an elderly cohort.
2021
International audience; Malnutrition is a serious problem in the elderly while understanding flavour perception could be a tool for controlling appetite or food choices. To increase our knowledge, we characterised the health and oral physiology (oral volume, swallowing tongue force, number of teeth and salivary flow rate, protein content and antioxidant capacity) of a cohort of 54 community-dwelling French elderly as well as their individual retronasal release of five aroma compounds (2-pentanone, 2-nonanone, 2,3-hexanedione, octanal and linalool) by proton-transfer-reaction mass spectrometry (PTR-MS). In general, large variability across participants was observed in both oral physiological…
Microtomographic reconstruction of mandibular defects treated with xenografts and collagen-based membranes:a pre-clinical minipig model
2021
Background The goal of this study was to evaluate hard tissue response following guided bone regeneration using commercially available bovine bone grafts and collagen membranes; bilayer collagen membrane and porcine pericardium-based membrane, by means of a non-destructive three-dimensional (3D) computerized volumetric analysis following microtomography reconstruction. Material and Methods Bone regenerative properties of various bovine bone graft materials were evaluated in the Göttingen minipig model. Two standardized intraosseous defects (15mm x 8mm x 8mm) were created bilaterally of the mandible of eighteen animals (n=72 defects). Groups were nested within the same subject and randomly d…