bluuebunny/crossref_metadata_2025_split huggingface dataset:
Transformation of eggshell waste to egg white protein solution, calcium chloride dihydrate, and eggshell membrane powder
Authors: Strelec Ivica , Ostojčić Marta , Brekalo Mirna , Hajra Sugato , Kim Hoe-Joon , Stanojev Jovana , Maravić Nikola , Budžaki Sandra 
Published: May 2023

Abstract
The present study investigated the possibility of complete utilization of eggshell waste (ESW) transforming it to adherent egg white protein solution, calcium chloride dihydrate, and eggshell membranes (ESM). Adherent egg white protein solution was obtained by washing ESW three times with distilled water at 25°C, followed by filtration, and analyzed for the protein content and lysozyme activity. ESM and calcium chloride were obtained simultaneously by the exposure of washed eggshells to 5% hydrochloric acid treatment at 25°C for 3 h, followed by separation by filtration. The separated ESM were washed, dried, and milled to powder and analyzed for protein and lipid content. The calcium chloride solution was exposed to the neutralization of excess hydrochloric acid by calcium hydroxide, followed by evaporation to one-tenth of volume. Calcium chloride crystals were precipitated from the concentrated solution with acetone, separated by filtration, dried at 110°C, and analyzed for chemical composition and purity. The obtained results revealed that 100 g of ESW can be transformed to 1.61 ± 0.34 g of adherent white proteins containing 485,821 U of lysozyme activity, 2.84 ± 0.16 g of ESM powder, and 108.74 ± 3.62 g of calcium chloride dihydrate of high purity.
Effect of essential oils on the oxidative stability of sunflower oil during storage
Authors: Causevic Amir , Omeragic Elma , Maestro Daniel , Causevic Mirela 
Published: May 2023

Abstract
The main non-microbial cause of quality deterioration in lipid-containing food is lipid oxidation, the process in which, simplifying, unsaturated fatty acids react with molecular oxygen via a free radical mechanism. The use of substances with antioxidant properties during the manufacturing process can minimize the extent of lipid oxidation.
This research aimed to determine the effect of selected essential oils on the quality and oxidative stability of sunflower oils. Sunflower oils were obtained by refining and cold-pressing and their quality and oxidative stability were studied during the different storage conditions: 20 °C and 5 °C at dark and with light exposure.
Obtained results suggested that the antimicrobial and antioxidant properties of essential oils can positively affect the oxidative stability and consequently the quality of sunflower oils during storage, and implicate with further application of essential oils in the edible vegetable oil industry.
Protein transport along the presequence pathway
Authors: Makki Abhijith , Rehling Peter 
Published: May 2023

Abstract
Most mitochondrial proteins are nuclear-encoded and imported by the protein import machinery based on specific targeting signals. The proteins that carry an amino-terminal targeting signal (presequence) are imported via the presequence import pathway that involves the translocases of the outer and inner membranes – TOM and TIM23 complexes. In this article, we discuss how mitochondrial matrix and inner membrane precursor proteins are imported along the presequence pathway in Saccharomyces cerevisiae with a focus on the dynamics of the TIM23 complex, and further update with some of the key findings that advanced the field in the last few years.
De–NO
x
conversion of selective catalytic reduction system for diesel engine using dual catalyst coated ceramic monoliths
Authors: Karaiellapalayam Palanisamy Devakaran , Jayabalan Arunshankar 
Published: May 2023

Abstract
Selective Catalytic Reduction (SCR) is a well-known method for reducing Oxides of Nitrogen (NO
x
) emissions from the exhaust manifold of the engine. Retrofitting SCR system to the diesel engines and, enhancing the catalyst activity along with injection controller of this system has become necessary because of stringent emission standards. In this work, dual catalyst is used to increase catalytic activity and, controlled urea injection is applied to decrease the slip of SCR system for stationary diesel engine. First, a pair of ceramic monolith substrate is selected and, coated with cerium oxide and Cu–zeolite for oxidation and SCR catalyst, respectively. XRD, BET and TGA–DSC are used to analyze the structural, and electrochemical behavior of the synthesized catalyst. The morphology and element composition of dual catalyst coated over the substrates are studied using FE-SEM and XEDS. Second, the thermocouple and rotary encoder are used to control the injector of SCR system, which injects the urea when the burned NO
x
leaves the engine exhaust manifold and enters the SCR. Finally, the diesel engine performance indicators and emission reduction due to the SCR system are evaluated under Non Road Steady Cycle (NRSC). From the experimental results, it is observed that the combined action of catalyst provides wide operating range between 153 and 425 °C and, controlled urea injection at 220° of exhaust valve opening with rate of 24.44 ms per cycle achieved a high De–NO
x
conversion efficiency of 93.4 % for SCR system, with a marginal reduction in engine Brake Thermal Efficiency (BTE) at maximum Brake Power (BP) condition. Thus, diesel engine exhaust retrofitted with SCR system proposed in this work will meet the Euro-VI emission standards.
Functions, sociocultural explanations and conversational influence of discourse markers: focus on zenme shuo ne in L2 Chinese
Authors: Chen Xi , Ren Wei 
Published: May 2023

Abstract
This study explores the ways that L2 learners develop their knowledge in understanding the pragmatic functions of a Chinese discourse marker (DM), zenme shuo ne (‘how to say’), and examines three interrelated aspects in pragmatic knowledge of this DM. Using metapragmatic interviews, emic data are collected from sixteen L2 Chinese learners and nineteen L1 Chinese speakers. The data are analysed using both qualitative methods and computational models. The findings reveal that L2 learners identify a different range of DM functions from L1 speakers. They attribute their function identification to concerns about self-face and speaker-centred interpersonal relationships, in contrast to L1 speakers, who refer to moral norms and indirect interpersonal relationships between the hearer and a third party. The different interpretations that L1 and L2 participants develop for the DM have given rise to different expectations of conversational directions. L2 learners are consistently more optimistic about upcoming conversations than L1 speakers.
Comparison among OOK, BPSK, DPSK, and QPSK with turbulence in FSO links
Authors: Pande Tanuja , Shukla Narendra Kumar 
Published: May 2023

Abstract
Free Space Optical (FSO) statement connection be a mark of view for the wire free connection among the lumps detached through a freehand intermediate so that the viewable and electromagnetic groups of the range are utilized as information transporter. The turbulence in an FSO link causes fluctuation in the intensity and the phase of the received signal. These fluctuations ultimately lead to the degradation in the link error probability and limit the system performance. This paper first focuses on survey of FSO system, modulation techniques used and environmental effects on link performance, while using different modulation techniques and turbulence models. In early days, it has been noticed that the vast renewal of investigation attention in this area possible to build FSO commercially feasible and observing into this prospect, information cadence approaches are one of the initial paths to improve connection feasibility. In this paper, we have applied the novel approach that is turbulence FSO for differentiation among OOK, BPSK, DPSK, and QPSK that has been analyzed. By comparison we found that BPSK approach is far better than all the other approaches in turbulence FSO connection. We use both theoretical analysis and MATLAB simulation to examine the BER performance. Here, the results have been mentioned for FSO system at different modulation format by taking values of the various parameters like: Data rate, Transmitter Wavelength, Aperture area, Transmitted power, Sigma. The contribution of the paper is to give a novel approach which is better than earlier approach in aspect of accuracy. The BER pursuance has been analyzed in aspect of distinct four approaches to remove the turbulence for its differentiation. The novelty of the system is that this paper analyzes the bit error rate of the FSO system using OOK, BPSK, DPSK, QPSK, and 8-PSK. It is appropriate as compared to the other systems it compensates lowest penalty rate as compared to other schemes that is why it is used for FSO turbulent system. This paper proposes adoptive transmission modulation technique gamma–gamma.
The AccuFlow sensor: a novel digital health tool to assess intrapartum blood loss at cesarean delivery
Authors: Lord Megan G. , Gould Alexander J. , Clark Melissa A. , Rouse Dwight J. , Lewkowitz Adam K. 
Published: May 2023

Abstract

Objectives
During obstetric hemorrhage, peripheral vasoconstriction maintains heart rate and blood pressure until compensatory mechanisms are overwhelmed and patients deteriorate rapidly. Real-time perfusion measurements could quantify vasoconstriction, improving early recognition of hemorrhage and facilitating early intervention to reduce morbidity and mortality. The AccuFlow device makes rapid, non-invasive, quantitative measurements of perfusion, but has not been studied for hemorrhage detection or used in surgical settings. This study evaluated feasibility, tolerability, and preliminary efficacy of the AccuFlow for assessment of blood loss at cesarean delivery (CD).

Methods
In this pilot study, sensors were applied to the wrist, forearm, bicep, and chest wall of 25 patients undergoing scheduled CD. Postoperatively, sensors were removed and patients rated the AccuFlow and the standard anesthesia monitoring equipment on a validated comfort rating scale for wearable computers (CRS). Blood loss was estimated by the surgical team (EBL) and calculated from change in hematocrit, weight, and height (CBL). CRS scores were compared via Wilcoxon signed ranks tests. Coefficients of correlation between sensor readings and CBL, and between EBL and CBL, were compared using Fisher’s R-to-z transformation.

Results
There were no safety events; no participants requested device removal. CRS ratings of the AccuFlow and the standard monitoring equipment were similar (7.2 vs. 8.8, p=0.25). Change in wrist perfusion from delivery to dressing placement was more strongly correlated with CBL than was EBL (R=−0.48 vs. R=0.087, p=0.03).

Conclusions
The AccuFlow sensor is well-tolerated and shows promise in detecting intrapartum hemorrhage, though larger studies are needed.
New records of the Annamite striped rabbit in Ngoc Linh, Quang Nam and Kon Tum provinces, Vietnam
Authors: Nguyen Anh Tuan , Tilker Andrew , Le Khac Quyen , Le Minh 
Published: May 2023

Abstract
The Annamite striped rabbit Nesolagus timminsi is an Endangered lagomorph endemic to the Annamite mountain range in Vietnam and Laos. We report new records of the Annamite striped rabbit from the elevations of 967–1210 m (mean = 1097 m) in the Ngoc Linh Mountains in Quang Nam and Kon Tum provinces, central Vietnam, located south of the southernmost known records in the central Annamites part of the species’ range. We also document previously unreported incidents of Annamite striped rabbit being caught for the pet trade. Our findings provide additional information on the distribution and threats to this little-known species that can be used to inform conservation measures.
The crystal structure of fac-tricarbonyl(2-pyridin-2-yl-quinoline-κ2
N,N′)-(pyrazole-κN)rhenium(I)nitrate, C20H14N4O3ReNO3
Authors: Sithole Sibusiso A. , Malan Federick P. , Katerere David R. , Manicum Amanda-Lee E. 
Published: May 2023

Abstract

C
20

H
14

N
4

O
3

${\mathrm{C}}_{20}{\mathrm{H}}_{14}{\mathrm{N}}_{4}{\mathrm{O}}_{3}$

Re

N
O

3

${\mathrm{N}\mathrm{O}}_{3}$

, monoclinic, P

2
1

${2}_{1}$

/c (no. 14), a = 12.9572 (2), b = 9.1568 (2), c = 17.3658 (3) Å, β =

97.267

(
2
)

°

$97.267(2){}^{\circ}$

, V = 2043.84 (7)

Å
3

${\mathrm{\mathring{\text{A}}}}^{3}$

, Z = 4,

R

g
t

${R}_{gt}$

(F) = 0.0231,

w

R

r
e
f

$w{R}_{ref}$

(

F
2

${F}^{2}$

) = 0.0514, T = 154 K
Araucaria Araucana
thermoplastic starch nanocomposite films reinforced with nanocellulose
Authors: Nazrin A. , Norfarhana A. S. , Ilyas R. A. , Sapuan S.M. , Khalina A. , Syafiq R. M. O. , Huzaifah M.R.M. , Azmi Ashraf , Khoo P. S. , Nordin Abu Hassan , Hawanis H. S. N. , Hassan S. A. 
Published: May 2023

Abstract

Araucaria Araucana
starch is a raw material with proven potential in obtaining biodegradable polymers. Plasticization improves the flexibility characteristics of starch-based films, however, they still tend to have low tensile strength and high hydrophilicity. The addition of nanocellulose is a technique to improve these characteristics. In this paper, the effects of adding different sources and concentrations of nanocellulose (NC) on the properties of thermoplastic Araucaria Araucana films are addressed. One can highlight, the main effects are the increase of tensile strength and transparency of the films along with the reduction of water vapor permeability and water solubility. Further studies involving the reinforcement of Araucaria Araucana starch and nanocellulose should be conducted to overcome the lack of information.
Phytochemicals from Annona muricata (Sour Sop) as potential inhibitors of SARS-CoV-2 main protease (Mpro) and spike receptor protein: a structure-based drug design studies and chemoinformatics analyses
Authors: Adedotun Ibrahim Olaide , Abdul-Hammed Misbaudeen , Towolawi Bamidele Toheeb , Afolabi Tolulope Irapada , Mufutau Karimot Motunrayo , Adegoke Hadijat Motunrayo 
Published: May 2023

Abstract
As the fight against SARS-CoV-2 remains undefeated despite available vaccines, continuous efforts to curtail this deadly and highly spreading virus remain a world priority. In this research, we have investigated the antiviral properties of the phytochemicals from Annona muricata (Sour Sop) as potential inhibitors of SARS-CoV-2 main protease (Mpro) and Spike Receptor Protein. Pharmacokinetic analyses such as in-silicoADME, drug-likeness, PASS prediction, oral-bioavailability and bioactivity were carried out to screen the phytochemicals, 9 out of the 131 ligands satisfied the screening. A molecular docking approach was used to obtain the binding energies of the 9 ligands, and the result showed that Roseoside (−7.50 kcal/mol) and Coreximine (−7.0 kcal/mol) displayed the best docking score and have predicted to have stable interactions with SARS-CoV-2 main protease and Spike Glycoprotein. Data from this study could be further explored in developing multi-target drugs against SARS-CoV-2.
Sequential Monte Carlo with model tempering
Authors: Mlikota Marko , Schorfheide Frank 
Published: May 2023

Abstract
Modern macroeconometrics often relies on time series models for which it is time-consuming to evaluate the likelihood function. We demonstrate how Bayesian computations for such models can be drastically accelerated by reweighting and mutating posterior draws from an approximating model that allows for fast likelihood evaluations, into posterior draws from the model of interest, using a sequential Monte Carlo (SMC) algorithm. We apply the technique to the estimation of a vector autoregression with stochastic volatility and two nonlinear dynamic stochastic general equilibrium models. The runtime reductions we obtain range from 27 % to 88 %.
Reduced binding of apoE4 to complement factor H promotes amyloid‐β oligomerization and neuroinflammation
Authors: Chernyaeva Larisa , Ratti Giorgio , Teirilä Laura , Fudo Satoshi , Rankka Uni , Pelkonen Anssi , Korhonen Paula , Leskinen Katarzyna , Keskitalo Salla , Salokas Kari , Gkolfinopoulou Christina , Crompton Katrina E , Javanainen Matti , Happonen Lotta , Varjosalo Markku , Malm Tarja , Leinonen Ville , Chroni Angeliki , Saavalainen Päivi , Meri Seppo , Kajander Tommi , Wollman Adam JM , Nissilä Eija , Haapasalo Karita 
Published: May 2023

AbstractThe APOE4 variant of apolipoprotein E (apoE) is the most prevalent genetic risk allele associated with late‐onset Alzheimer's disease (AD). ApoE interacts with complement regulator factor H (FH), but the role of this interaction in AD pathogenesis is unknown. Here we elucidate the mechanism by which isoform‐specific binding of apoE to FH alters Aβ1‐42‐mediated neurotoxicity and clearance. Flow cytometry and transcriptomic analysis reveal that apoE and FH reduce binding of Aβ1‐42 to complement receptor 3 (CR3) and subsequent phagocytosis by microglia which alters expression of genes involved in AD. Moreover, FH forms complement‐resistant oligomers with apoE/Aβ1‐42 complexes and the formation of these complexes is isoform specific with apoE2 and apoE3 showing higher affinity to FH than apoE4. These FH/apoE complexes reduce Aβ1‐42 oligomerization and toxicity, and colocalize with complement activator C1q deposited on Aβ plaques in the brain. These findings provide an important mechanistic insight into AD pathogenesis and explain how the strongest genetic risk factor for AD predisposes for neuroinflammation in the early stages of the disease pathology.
Dinâmicas de preconceito contra a diversidade sexual no contexto da universidade
Authors: Magno da Silva Welligton , Francisco Tondin Celso , Saraiva de Queiroz Isabela 
Published: May 2023

O artigo objetiva analisar experiências de preconceito contra sexualidades vivenciadas por estudantes, autodeclarados homens gays, na trajetória acadêmica. Constitui um estudo qualitativo com pressupostos metodológicos e epistemológicos feministas, no qual foram realizadas entrevistas narrativas com sete discentes, acessados por meio da técnica snowball, sendo os dados discutidos com base na análise crítica do discurso. A universidade e outros espaços (festas e repúblicas universitárias), tomados como uma extensão da instituição, são vistos como ambientes mais acolhedores e libertários para as experiências não heterossexuais, no entanto, em muitos casos, (re)produzem dinâmicas complexas de preconceito que reforçam a manutenção de tais experiências no campo do privado, colaborando para a manutenção da lógica heteronormativa. Sugere-se a criação de espaços para troca de experiências como importante ferramenta de emergência de sujeitos políticos que compreendam criticamente o contexto que os cerca e desconstruam os mecanismos de poder que produzem silenciamento e naturalizam violências.
Neopatrystyczna koncepcja ascezy Sergieja Chorużego (1941–2020) i jego heideggerowsko-foucaultiańskie inspiracje
Authors: Kroczak Justyna 
Published: May 2023

W artykule przedstawiam osobowość twórczą współczesnego rosyjskiego myśliciela nurtu neopatrystycznego Sergiusza Chorużego ze szczególnym naciskiem na jego oryginalną koncepcję teorii ascezy (teorii energoform). Bazuje ona na źródłach patrystycznych, ale zdradza także inspiracje ustaleniami współczesnej filozofii zachodnioeuropejskiej, zwłaszcza myślą Martina Heideggera i Michela Foucaulta. W artykule analizuję główne założenia teorii ascezy Chorużego i komentuję heideggerowsko-foucaultiańskie elementy w niej zawarte. Rozważania na temat ascezy dotykają problemów zarówno typowo filozoficznych — ontologicznych, gdzie przejawiają się inspiracje Heideggerem, jak i historyczno-hermeneutyczne, gdzie widzimy polemikę z Foucaultem. W rezultacie przeprowadzam analizę komparatystyczną Heideggerowskiej i energijnej wizji człowieka, wskazując, że fenomeny życia duchowego, takie jak asceza, mogą z powodzeniem być przedmiotem rozważań teoretycznych oraz pokazać uniwersalność niektórych teologiczno-filozoficznych (ontologicznych) interpretacji kondycji człowieka.
Czy współczesne rozumienie problemu Bożej ukrytości prowadzi do ateizmu?
Authors: Mordarski Ryszard 
Published: May 2023

W artykule omówione zostały dwie znakomite prace na temat ukrytości Boga autorstwa Miłosza Hołdy (Źródło i noc. Wprowadzenie do współczesnego absconditeizmu) i Marka Dobrzenieckiego (Ukrytość i Wcielenie. Teistyczna odpowiedź na argument Johna L. Schellenberga za nieistnieniem Boga). Należą oni do tzw. przyjacielskich teistów, którzy usiłują traktować tezę o Bożej skrytości jako ważne poszerzenie problematyki klasycznego teizmu. Wydaje się jednak, że ulegają oni iluzji prowadzenia dialogu z tzw. przyjacielskimi ateistami, wciągającymi teistów w taką interpretację tezy o skrytości Boga, która wydaje się całkowicie sprzeczna z teizmem. Powstaje zatem pytanie, czy współczesne sformułowania problemu skrytości Boga są w jakikolwiek sposób do pogodzenia z chrześcijańskim teizmem?
Paradoksy podróży w czasie
Authors: Lewis David , Iwanicki Marcin , Teske Joanna Klara 
Published: May 2023

Przekład na podstawie: „The Paradoxes of Time Travel”. American Philosophical Quarterly 13 (1976): 145–152. Przekład za zgodą Wydawcy
Autor eseju argumentuje, że podróże w czasie są możliwe, a paradoksy podróży w czasie są osobliwościami, a nie niemożliwościami. Obrona możliwości podróży w czasie wymaga przyjęcia (a) trwających w czasie rzeczy, które posiadają zarówno przestrzenne, jak i czasowe części, (b) psychologicznej ciągłości i łączności oraz ciągłości przyczynowej jako kryteriów tożsamości osobowej, a także (c) rozróżnienia pomiędzy czasem zewnętrznym i osobistym.
Methods for determining the organic carbon content in soils (critical review)
Authors: Kogut B. M. , Milanovsky E. Yu. , Hamatnurov Sh. A. 
Published: May 2023

The paper presents theoretical basis of the methods for determining the content of soil organic carbon (SOC) both by direct dry combustion using automated analyzers and indirectly – by I.V. Tyurin and Walkley–Black oxidation. Author's and literature experimental data of SOC analyses in various soils by these methods are presented. Comparative analysis of the above data showed that in some cases the content of SOC determined by oxidability is lower than the one obtained by dry combustion (in most cases), while in others, on the contrary, the content of SOC is higher. This conclusion fully complies with the theoretical views of I.V. Tyurin on the chemical nature of soil organic matter (SOM). A schematic description of determining the content of total (organic) carbon in non-carbonate soils by dry combustion method using automated analyzers Leco (USA) and AH-7529 (Gomel, Belarus) is given. It was pointed out that it is difficult to determine SOC content by dry combustion method with automated analyzers in carbonate soils. For these soils it is recommended to determine the content of inorganic carbon by decomposition of carbonates with HClO4 solution using express analyzer AN-7529. The direct method of determining the content of SOC has the best metrological characteristics compared to ones of the indirect method, which convincingly confirms the authoritative opinions of Schollenberg and Tyurin about the inaccuracy of the latter. It is concluded that the indicators determined by the methods of Tyurin and Walkley–Black and dry combustion are chemically independent, characterizing, respectively, the oxidability and organic carbon content of SOM. It is recommended to use dry combustion method with automated analyzers when monitoring the content and stocks of organic carbon in soils.