bluuebunny/crossref_metadata_2025 huggingface dataset:
Algunos elementos clave de teoría política en el pensamiento de Juan Duns Escoto
Authors: Mayocchi Enrique Santiago
Published: March 2023

La inestable relación entre el papado romano y la monarquía francesa desde finales del siglo XIII continuando las primeras décadas del siglo XIV ha sido ocasión propicia para el desarrollo de teorías políticas y la profundización en el estudio de las relaciones entre poder temporal y espiritual. Esta investigación tiene como objetivos principales determinar la posición de Duns Escoto sobre algunos elementos clave de teoría política, como lo son el origen de la sociedad y la autoridad, así como el papel que desempeña la propiedad privada alrededor de estas cuestiones. Nos interesa enmarcar las ideas políticas en conexión con las grandes doctrinas de su filosofía y el debate histórico que vivió él mismo, para poder indagar acerca de su posición en este. De este análisis surgirá que la propiedad privada no es absoluta, la potestad de la autoridad civil es otorgada por la comunidad, puesto que la sociabilidad es anterior a la politicidad y su inclinación contraria a las ideas teocráticas a favor de la separación de los poderes espiritual y temporal.
Aposentadoria e Envelhecimento: Estudo das Representações Sociais entre Mulheres Idosas
Authors: de Brito Jhessica Paula , Fernandes de Araújo Ludgleydson , Pereira Belo Raquel
Published: March 2023

Esta investigación tuvo como objetivo identificar y comparar las represen-taciones sociales de las mujeres mayores acerca de la jubilación y el envejecimiento. Doce mujeres con edad media de 67 años (DE=5) de grupos desarrollados en la ciudad de Parnaíba-PI, Brasil participaron de la investigación. Los datos se obtuvieron a través de un cuestionario sociodemográfico y la Técnica de Asociación de Palabras Libres – TAPL, utilizando estadísticas descriptivas y criterios de Rede Semánticas, respectivamente, de acuerdo con Vera-Noriega (2005), para analizar los datos recopilados. Los resultados apuntaron en ambos grupos representaciones sociales positivas y negativas ancladas en los aspectos de senescencia para el envejecimiento y la jubilación anclada en la idea del apoyo financiero. Los datos de esta investigación subrayan la concepción idiosincrásica del envejecimiento, así como la necesidad de dar una nueva mirada al concepto de vejez, políticas de salud pública, trabajo, jubilación y servicios para el público. Se espera que los datos presentados sirvan como subsidios para futuras investigaciones con acciones de intervenciones psicosociales y promoción de la ciudadanía destinadas al publico referido.
Optimization of Cellulase Production by Aspergillus niger InaCC F506 in Solid-State Fermentation of Tofu Dreg
Authors: Shih Talisia Kresna , Aminin Agustina L. N. , Mulyani Nies Suci
Published: March 2023

Indonesia has a growing demand for cellulase enzymes; however, 99% of the enzymes are imported from other countries. Aspergillus niger is well recognized for using the widely accessible tofu by-product, often known as tofu dreg, as a growth medium for synthesizing cellulase enzymes. This study aims to optimize the production of cellulase enzymes by Aspergillus niger InaCC F506 using tofu dregs as a substrate through the Solid-State Fermentation (SSF) method by varying the additives. The results showed that the E fermentation system with the composition of urea 0.5%; CMC 0.5%; KH2PO4 0.2%; MgSO4.7H2O 0.2% produced the highest cellulase enzymes from the tofu dregs substrate. The highest cellulase enzyme activity was at a fraction of ammonium sulfate saturation level of 40-60%. The optimum condition of enzyme activity was observed at pH 5 with an activity of 33 x 10-4 Units/mg protein and at 30℃ with an activity of 31 x 10-4 Units/mg protein.
PENGARUH PEMBERIAN COOKIES TEPUNG LABU KUNING DAN IKAN GABUS TINGGI PROTEIN TERHADAP KADAR HEMOGLOBIN PASIEN GAGAL GINJAL KRONIK DENGAN ANEMIA
Authors: Safitri Liza , Susyani Susyani , Terati Terati
Published: March 2023

Latar belakang: Penyakit gagal-ginjal-kronis ialah kondisi renal yang tidak lagi bisa mengeluarkan limbah metabolisme tubuh yang berakibat pada gangguan fungsi endokrin dan metabolisme. Dua faktor dapat mengembangkan anemia pada pasien gagal ginjal kronis. Pertama, dibandingkan dengan pasien tanpa gagal ginjal kronis, mereka dengan gagal ginjal kronis menghasilkan lebih sedikit erythropoietin (EPO), dan kedua, hepcidin meningkat pada pasien dengan gagal ginjal kronis.Tujuan:Mengetahui pengaruh pemberian cookies berbahan dasar tepung labu kuning dan ikan gabus terhadap hemoglobin pasien gagal ginjal hemodialisis anemia di RSUP Dr. M. Hoesin Palembang.Metode: Penelitian ini dilakukan dalam 2 tahap, tahap pertama menggunakan Rancangan Acak Lengkap Non Faktorial untuk menentukan formulasi produk yang digunakan sebagai intervensi, dan tahap kedua menggunakan desain penelitian quasi eksperimen dengan one group pre -test dan post-test desain penelitian. Populasi dalam penelitian ini adalah seluruh pasien gagal ginjal yang menjalani hemodialisis. Sampel penelitian dipilih dengan menggunakan metode Purposive Sampling dengan jumlah 40 responden. Analisis data menggunakan uji Friedman dan uji T-Dependent.Hasil: Uji organoleptik menunjukkan bahwa formula terpilih adalah formulasi F2. Sedangkan hasil intervensi menunjukkan adanya perbedaan kadar hemoglobin sebelum dan sesudah intervensi, rata-rata peningkatan kadar hemoglobin responden adalah 0,78 g/dl dengan p <0,001.Simpulan: Dapat disimpulkan bahwa cookies dengan penambahan labu kuning dan ikan gabus berpengaruh terhadap peningkatan kadar hemoglobin pada penderita gagal ginjal yang menjalani hemodialisa dan dapat dijadikan sebagai produk alternatif pencegahan anemia pada penderita gagal ginjal.
INDEKS GLIKEMIK DAN BEBAN GLIKEMIK MAKANAN KAITANNYA DENGAN KADAR LDL DAN RLPP PASIEN DIABETES MELLITUS TIPE-2
Authors: Wari Andaresfa Trias , Muhlishoh Arwin , Nurzihan Nastitie Cinintya
Published: March 2023

Latar belakang: Risiko DM (Diabetes Mellitus) sering dikaitkan dengan pangan yang berbasis karbohidrat yaitu IG (Indeks Glikemik) dan BG (Beban Glikemik) yang menyebabkan resistensi insulin, dan mempengaruhi metabolisme dalam lemak yang menyebabkan terjadinya peningkatan kadar LDL (Low Density Lipoprotein). Konsumsi karbohidrat yang berlebih akan menyebabkan tidak seimbangnya jumlah energy intake dengan energy expenditure sehingga dalam jangka waktu lama akan menimbulkan obesitas. Pengukuran antropometri yang berguna sebagai prediktor terjadinya obesitas adalah dengan menggunakan RLPP (Rasio Lingkar Pinggang dan Panggul).Tujuan: Penelitian ini bertujuan untuk mengetahui hubungan antara IG dan BG makanan dengan kadar LDL dan RLPP pada pasien DMT2.Metode: Desain penelitian adalah cross sectional. Responden dari penelitian ini adalah 21 pasien DMT2 di Puskesmas wilayah kerja Kabupaten Karanganyar. Pengambilan sampel menggunakan teknik purposive sampling. Variabel yang diteliti adalah IG, BG, kadar LDL, RLPP. Dianalisis menggunakan uji kolerasi pearson dengan nilai signifikansi < 0,05 dan dianalisis multivariat dengan menggunakan regresi linier berganda.Hasil: Penelitian ini menunjukkan bahwa IG mempunyai hubungan dengan kadar LDL (p<0,001; r=0,939), IG mempunyai hubungan dengan RLPP (p=<0,001; r=0,984), BG mempunyai hubungan dengan kadar LDL (p<0,001; r=0,969), BG mempunyai hubungan dengan RLPP (p<0,001; r=0,963), RLPP mempunyai hubungan dengan kadar LDL (p<0,001; r=0,984). Analisis multivariat menunjukkan BG makanan adalah prediktor dari kadar LDL dan IG dan BG makanan adalah prediktor dari RLPP.Simpulan: Terdapat hubungan positif dan signifikan antara IG dan BG makanan dengan kadar LDL dan RLPP pada pasien DMT2.
Čeština a angličtina v průsečíku lexikálních hybridů
Authors: Bozděchová Ivana , Klégr Aleš
Published: March 2023

Příspěvek je věnován analýze nejnovější české slovní zásoby, jejíž hybridnost vyplývá ze spojení slovotvorných prostředků českého a anglického jazykového půvo- du. Nejprve se zaměřuje na postavení hybridních útvarů v rámci přejímek a poskytuje terminologický přehled typů přejímek z angličtiny (anglicismy – pseudoanglicismy – kalky – hybridy). Na základě vzorku excerpce ze současných českých textů pak naznačuje možné klasifikace hybridů s anglickými slovotvornými prvky a ilustruje jejich různé typy.
Frequency and morphological behaviour of nouns in Czech and Russian
Authors: Mačutek Ján , Koščová Michaela , Kelih Emmerich , Čech Radek
Published: March 2023

Declensional morphology of nouns in Czech and Russian is investigated and compared. It is shown that, in general, word forms which are more similar to their lemmas are preferred, but there are differences between animate and inanimate nouns and also among grammatical genders. The frequency distribution of grammatical cases is also studied, with animacy and gender being again important factors.
Correlation analysis of physical and mechanical parameters of inland fluvial-lacustrine soft soil based on different survey techniques
Authors: Zhang Liujun , Qiu Youqiang , Wu Tong , Zhang Wei
Published: March 2023

Based on the collected soil property index test data of more than 2,500 groups of inland fluvial-lacustrine soft soil, the correlation of physical and mechanical parameters of this soft soil was systematically analyzed. The results show that the physical indexes of inland fluvial-lacustrine soft soil are close to that of marine soft soil, while its mechanical indexes are higher. However, the variation coefficient of its mechanical indexes is much larger than that of the physical indexes. In addition, it is found that the cone penetration parameters of this soft soil are significantly correlated with its physical and mechanical indexes by establishing a series of empirical relationships between the static point resistance and the natural unit weight, the liquidity index, the quick shear cohesion, and vane shear strength. On the basis of the previous research results, the disturbance strength of inland fluvial-lacustrine soft soil can be converted into in situ strength by deriving the theoretical formula between the vane shear strength and the disturbance degree. The calculation process of the above conversion relation is explained in detail through an engineering case, which indicates that the theoretical formulas have good applicability for inland fluvial-lacustrine soft soil.
SARS-CoV-2 specific T-cell humoral response assessment after COVID-19 vaccination using a rapid direct real-time PCR amplification
Authors: Cosma Chiara , Galla Luisa , Padoan Andrea , Furlan Giulia , Marchioro Lucio , Zaninotto Martina , Basso Daniela , Plebani Mario
Published: March 2023

Objectives

The SARS-CoV-2 immune response is mediated by both humoral and cellular immunity. In this study, SARS-CoV-2 specific cellular immunity was tested by a novel direct real-time PCR (dRT-PCR) assay, targeting mRNA of CXCL10, and compared with respect to an ELISA measuring interferon gamma (IFN-γ) release.

Methods

Whole blood (Li–He) and serum samples were collected from 92 healthcare workers (HCW), with three doses of homologous (Pfizer/BioNTech, n=74) or heterologous (Pfizer/BioNTech and Vaxzevria or Moderna, n=18) vaccinations. Li–He samples were incubated with SCV2 PANEL-1-T-ACTIVATION (Hyris srl, Lodi, Italy), or CoV-2 IGRA TUBE ELISA (Euroimmune, Lubeck, Germany). CXCL10 mRNA expression was analyzed by bCube/bApp (Hyris), while IFN-γ was evaluated by quant-T-Cell SARS-CoV-2 ELISA (Euroimmune). Anti-SARS-CoV-2 S-RBD IgG levels were measured in sera using a CLIA assay (Snibe, Shenzen, China).

Results

Imprecision of dRT-PCR assay was found to be satisfactory, and the two methods for measuring T cell immunity to SARS-CoV-2 peptides agreed in 82/87 (94.2%) of results. At qualitative dRT-PCR analyses, 81 subjects (93.2%) resulted as reactive to SARS-CoV-2 peptides, 3 (3.4%) were borderline and 3 were negative (3.4%). At univariate and multivariate analyses of quantitative dRT-PCR mRNA of CXCL10 and IFN-γ release results showed no difference between HCW with previous infection, homologous/heterologous vaccination, or demographical features. Anti-SARS-CoV-2 S-RBD IgG was associated with the previous infection and the time between the last vaccination or positivity.

Conclusions

Direct RT-PCR appeared accurate for determining the presence or absence of immunoreactivity of SARS-CoV-2 specific T cells, especially when rapid analyses are required, such as for organ transplantation.
Microwave and Cs+-assisted chemo selective reaction protocol for synthesizing 2-styryl quinoline biorelevant molecules
Authors: Mittal Ravi Kumar , Purohit Priyank , Abdellattif Magda H. , Aggarwal Meenu
Published: March 2023

The reaction protocols and their continuous development to achieve the desired selectivity remain a primary target of organic chemistry, which is addressed here with the specific role of the cesium ion. The pharmacophore “2-styryl quinoline” was taken as a reference here because of the continuation of our work, where it was found fit as fusion inhibitors and anti-viral agents. The present protocol defines its importance for the synthesis of O-alkylated products. However, in most cases, N-alkylation proceeds because of nitrogen atoms’ more nucleophilic nature and electronic density. The cesium effect makes this possible because of the large cationic size and its affection for the oxygen atom. The plausible mechanism and its progression were demonstrated here with the help of density function theory calculation by analyzing the energy of intermediates. The protocol is also found suitable with microwave irradiation. Moreover, it gives the product a better yield in less reaction time. The present reaction protocol and its importance will address some of the crucial issues related to the synthesis of the complex molecule, and the present protocol will open up hope, where the selectivity and product yield would be a concern.
Supporting Humanitarian Crisis Decision Making with Reliable Intelligence Derived from Social Media Using AI
Authors: Garcia Christopher , Rabadi Ghaith , Abujaber Dia , Seck Mamadou
Published: March 2023

Recent advances in the field of artificial intelligence bring promising new capabilities that can substantially improve our ability to manage complex and evolving situations in the face of uncertainty. Humanitarian crises exemplify such situations, and the pervasiveness of social media renders it one of the most abundant sources of real-time information available. However, it is quite a difficult task to condense a body of social media posts into useful information quickly. In this paper we consider the challenge of using social media reports to provide a reliable, real-time situational awareness in the management of humanitarian crises. Effectively addressing this challenge requires extracting only the relevant information out of text and images in individual social media posts, fusing this information together into actionable information points for decision makers, and providing an assessment of the trustworthiness of this information. We propose a general solution framework and discuss a system developed in collaboration with NATO which combines state-of-the-art deep learning, natural language processing, computer vision, and information fusion models to provide a reliable, actionable, real-time situational awareness for supporting decision making in humanitarian crisis logistics. In addition to the technical approach, we also discuss important practical aspects of this project including the development and validation process, challenges encountered along the way, and key lessons learned.
Simulative study of vertical cavity with distributed feedback optical sources coupling to fiber systems evaluation
Authors: Rashed Ahmed Nabih Zaki , Reddy Mittamidi Madhusudhan , Nagendram Sanam , Anwer Twana Mohammed Kak , Ahammad Shaik Hasane , Hossain Md. Amzad , Shetea Eslam Fahmy
Published: March 2023

This paper has demonstrated the simulative study of vertical cavity with distributed feedback light sources coupling to the fiber systems. The simulative study of piezoresistive, capacitive and piezoelectric sensing for micro electro mechanical system has been clarified. The span against the diaphragm thickness for the square diaphragm, round diaphragm, a round bossed diaphragm and rectangular diaphragm is clarified. Acceleration against displacement for a capacitive accelerometer for step signal based on signal sided and double sided is reported. Besides, acceleration against max pulse time for a capacitive accelerometer is outlined. The frequency response plot for a piezoelectric accelerometer under longitudinal load and for thin film based piezoelectric accelerometer is demonstrated based on MEMSolver simulation software version 3.3.
Effects of the Strong Hearts program after a major cardiovascular event in patients with cardiovascular disease
Authors: Murphy Bruce E. , Card Peyton D. , Ramirez-Kelly Leybi , Xaysuda Amanda M. , Heidel R. Eric
Published: March 2023

Context

Cardiac rehabilitation (CR) and intensive cardiac rehabilitation (ICR) are secondary prevention interventions for cardiovascular disease (CVD) with a class 1a indication yet suboptimal utilization. To date, there are only three approved ICR programs. Alternative programing should be explored to increase enrollment and adherence in these interventions.

Objectives

This study aims to evaluate the effectiveness of the Strong Hearts program in cardiovascular patients following a major cardiovascular event.

Methods

One hundred ninety-seven (n = 197) participants were enrolled in this prospective, nonrandomized study. Patients were eligible for participation if they were referred by a physician after a major cardiovascular event, defined as any of the following: (1) acute myocardial infarction (MI) within the preceding 12 months; (2) current stable or unstable angina pectoris; (3) heart valve procedure; (4) percutaneous intervention of any kind; (5) heart transplant; (6) coronary artery bypass grafting (CABG); or (7) congestive heart failure (CHF) with reduced or preserved ejection fraction. Participants were asked to attend program visits four times per week for 9 weeks. Visits consisted of individualized exercise and intensive healthy lifestyle education. Paired t tests were utilized to compare pre- and postprogram outcome measures.

Results

One hundred twenty-eight (n = 128) participants completed the program within the 9-week time frame and their outcome measures were included in the data analysis. Among this, 35.2% participants were female and 64.8% were male. The mean age was 65 (range, 19-88). Qualifying diagnoses were percutaneous coronary intervention (PCI; 60, 46.9%), CABG (33, 25.8%), angina (24, 18.8%), valve procedures (8, 6.2%), and CHF (3, 2.3%). After implementation of the intervention, statistically significant decreases in weight (P < .001), body mass index (BMI, P < .001), waist circumference (P < .001), triglycerides (P = .01), systolic blood pressure (SBP, P <.001), diastolic blood pressure (DBP, P = .002), total fat mass (P < .001), Dartmouth Quality of Life Index P < .001), and cardiac depression scores (P = .044) were detected. In other instances, there were statistically significant increases across time for the clinical parameters of high-density lipoprotein (HDL, P = .02), Vitamin D (P = .001), metabolic equivalents (METS, P < .001), Duke activity scores (P < .001), and Rate Your Plate nutrition scores (P < .001). There were no significant changes across time for total cholesterol (P = .17), low-density lipoprotein (LDL, P = .21), A1c (P = .27), or dual-energy X-ray absorptiometry (DXA) total lean mass (P = .86).

Conclusions

The 9-week structured program resulted in significant cardiovascular benefit to patients with CVD by reducing cardiac risk factors, increasing exercise capacity, and improving quality of life.
Effect of minimal length uncertainty on neutrino oscillation
Authors: Twagirayezu Fidele J.
Published: March 2023

In this paper, we study the effect of the minimal length on neutrino oscillation in a static magnetic field. In the framework of the generalized uncertainty principle, we reformulate the Hamiltonian for a relativistic neutrino moving in a magnetic field oriented along the z-direction of Cartesian coordinates. Using the modified energy spectrum, we obtain the oscillation probability for different neutrino flavors. In addition, we obtain the energy differences for the neutrino-mass eigenstates. We find that the energy and energy difference depend on the minimal length parameter α, and the energy difference becomes independent of α when the magnetic field is not present. In addition, we find that the modified probability of oscillation differs from the usual probability of oscillation if a magnetic field is present. Using the current experimental result, we estimate the upper bound on the deformation parameter and the minimal length, and find that the upper bound on the minimal length scale is less than the electroweak scale. If the minimal length is at Planck scale, the minimal length formalism leads to the same result as a quantum theory of gravity with an

S
U

2

L

⊗
U

1

$SU{\left(2\right)}_{L}\otimes U\left(1\right)$

effective invariant dimension-5 Lagrangian including neutrino and Higgs fields.
Load-Specific Performance Fatigability, Coactivation, and Neuromuscular Responses to Fatiguing Forearm Flexion Muscle Actions in Women
Authors: Benitez Brian , Dinyer-McNeely Taylor K. , McCallum Lindsay , Kwak Minyoung , Succi Pasquale J. , Bergstrom Haley C.
Published: March 2023

Benitez, B, Dinyer-McNeeley, TK, McCallum, L, Kwak, M, Succi, PJ, and Bergstrom, HC. Load-specific performance fatigability, coactivation, and neuromuscular responses to fatiguing forearm flexion muscle actions in women. J Strength Cond Res 37(4): 769–779, 2023—This study examined the effects of fatiguing, bilateral, dynamic constant external resistance (DCER) forearm flexion on performance fatigability, coactivation, and neuromuscular responses of the biceps brachii (BB) and triceps brachii (TB) at high (80% 1 repetition maximum [1RM]) and low (30% 1RM) relative loads in women. Ten women completed 1RM testing and repetitions to failure (RTF) at 30 and 80% 1RM. Maximal voluntary isometric force was measured before and after RTF. Electromyographic (EMG) and mechanomyographic (MMG) amplitude (AMP) and mean power frequency (MPF) signals were measured from the BB and TB. Performance fatigability was greater (p < 0.05) after RTF at 30% (%∆ = 41.56 ± 18.61%) than 80% (%∆ = 19.65 ± 8.47%) 1RM. There was an increase in the coactivation ratio (less coactivation) between the initial and final repetitions at 30%, which may reflect greater increases in agonist muscle excitation (EMG AMP) relative to the antagonist for RTF at 30% than 80% 1RM. The initial repetitions EMG AMP was greater for 80% than 30% 1RM, but there was no difference between loads for the final repetitions. For both loads, there were increases in EMG MPF and MMG AMP and decreases in MMG MPF that may suggest fatigue-dependent recruitment of higher-threshold motor units. Thus, RTF at 30 and 80% 1RM during DCER forearm flexion may not necessitate additional muscle excitation to the antagonist muscle despite greater fatigability after RTF at 30% 1RM. These specific acute performance and neuromuscular responses may provide insight into the unique mechanism underlying adaptations to training performed at varying relative loads.
Using Neutron Radiography to Assess Parameters Associated with Water Permeability Testing
Authors: Ghantous Rita M. , Fronczek Brett , Jablonski Clay B. , Bui Van , Schaef Steve , Reese Steve R. , Weiss W. Jason
Published: March 2023

This study uses neutron radiography to evaluate specimen preparation and test parameters that impact the depth of water penetration in concrete tested under water pressure. First, the impact of the boundary conditions (i.e., the dissipation of pressure that may build up at the lower side of the specimen) on the water penetration throughout the specimen depth was studied. Second, the impact of predrying the specimens (at 65°C) was examined. Third, the depth of water penetration is often measured by splitting the specimen at the end of the permeability test. The use of visual assessment to quantify the depth of water penetration was compared with neutron radiography measurements to determine the accuracy of visual inspection. It was concluded that care should be taken while designing the permeability apparatus to allow pressure dissipation at the lower section of the specimen. The predrying of the specimens at 65°C significantly impacts the permeability and microstructure of the concrete specimens. Finally, water can be seen by the eye when it fills voids with a pore radius greater than 46 nm (i.e., a relative humidity higher than 98.2 ± 0.5 % range, in concrete specimens with a water-to-cement ratio of 0.42 and an air content of 2.5 % content).
Feasibility Study of CO2-Based Vortex Tube Cooling System in Turning of Ti-6Al-4V
Authors: Mahapatro Khirod , Vamsi Krishna P.
Published: March 2023

In titanium alloy machining, a large amount of heat is produced because of the intrinsic characteristics that raise the cutting temperature. In this study, a cooling method known as vortex tube cooling system (VTCS) is used along with carbon dioxide gas coolant to minimize the cutting temperature in Ti-6Al-4V machining. Initially, the optimum value of cold fraction was obtained by considering temperature drop, coefficient of performance, and isentropic efficiency (ηis) at constant coolant pressure. Further, the coolant temperature in the vortex tube varies from room temperature to a steady value that depends on coolant pressure and cold fraction. The trend of cutting temperature and cutting force with change in temperature of coolant and time was analyzed. Cutting force, cutting temperature, and surface roughness were analyzed under different cooling mediums such as dry air, compressed air, cool compressed air cooling (air with vortex tube), and VTCS at constant machining conditions (speed, feed, and depth of cut). From the experimental results, the least cutting temperature and surface roughness were reported under VTCS and the lowest cutting force under dry cutting.
The impact of the wall insulation material and variable refrigerant flow system on building energy consumption and cost
Authors: Hamza Shaikh  , Memon Rizwan Ahmed , Qureshi Samiullah , Shaikh Asad , Noonari Shoukat Ali
Published: March 2023

The use of VRF system and insulation in building envelope are both considered as promising option to reduce energy consumption of a building. This study analysis energy saving potential of VRF system and building insulation using modelling and simulation of a typical office building. The model office building is simulated with the weather of Hyderabad, Sindh, Pakistan using EnergyPlus building simulation software. The simulation cases include conventional and VRF air conditioning systems with and without insulation to evaluate and compare the annual cooling and energy savings and payback period. Results showed that by replacing conventional air conditioner with VRF AC electrical power can be reduced by 42-45%. It is also noted that Cellulose, expanded polystyrene, extruded polystyrene and polyurethane insulations can save around 49.5, 51.4, 51.6, and 54.54% of electricity, respectively. In the case VRF air conditioner used with Cellulose, expanded polystyrene, extruded polystyrene and polyurethane insulation may reduce electricity consumption by 66.5, 67.4, 67.5 and 68.9 %, respectively. The payback period varies from 7 to 15 months. However, cellulose with VRF air conditioner has the least payback period of around 7 months. The longest payback period of around 15 months was noted for the un-insulated office building with VRF air conditioner. Despite having longer payback period, the combination of polyurethane insulation with VRF air conditioning system is the most efficient combination.
Interventional vs surgical procedures in localized/nonmetastatic insulinomas (ablation vs surgery)
Authors: Sada Alaa , McKenzie Travis J , Vella Adrian , Levy Michael J , Halfdanarson Thorvardur R
Published: March 2023

Localized insulinoma is an uncommon entity that can result in substantial morbidity due to the associated hypoglycemia. Recent studies have suggested an increase in the incidence of insulinoma in recent decades that may possibly be secondary to increased awareness, incidental diagnoses, and better diagnostic methods. Diagnosing and localizing insulinoma within the pancreas can be challenging, but advances in nuclear imaging may improve diagnostic accuracy. Delays in diagnosis are common, but once a localized insulinoma is diagnosed and appropriately treated, the long-term prognosis is excellent. Surgical resection is considered the standard of care management option for localized insulinoma, but tumor ablation with endoscopic ultrasound guidance has also been shown to be an effective and safe method for therapy.
Responsabilidad por los cuidados
Authors: Ausín Díez Txetxu , Triviño Caballero Rosana
Published: March 2023

Este trabajo pretende mostrar, por unlado, la necesidad de priorizar los cuidadoscomo necesidad básica para el sostenimientode la vida y la sociedad; porotro lado, el desigual reparto entre quienesproporcionan y quienes reciben esoscuidados, basado, fundamentalmente, enel sistema sexo-género. Para ello, se aplicael marco teórico de la ética del cuidadoy se proporcionan argumentos y datosempíricos acerca de las consecuenciasque tienen sobre las mujeres circunstanciascomo la maternidad, la crianza o elcuidado de personas en situación de dependencia.
Assessment of bioethanol fermentation performance using different recycled waters of an integrated system based on food waste
Authors: Saeed Mashair Anwar , Wang Qunhui , Jin Yong , Yue Siyuan , Ma Hongzhi
Published: March 2023

To utilize the process water during ethanol fermentation from food waste saccharification broth, the water obtained after three types of technology—methane fermentation, electrodialysis, and microbial fuel cell—were utilized in recycle fermentation in food waste ethanol fermentation. The food waste methane water (FWS), electrodialysis water (FEW), and microbial fuel cell water (FWM), were compared with tap water in terms of ethanol fermentation, volatile fatty acid production, and other parameters. The results indicated that fermentation time was reduced by 50% using both FEW and FWM recycling. Among the different recycled water, FEW recycling in ethanol fermentation motivated yeast growth, yielding the highest ethanol value of 47 g/L. The pH changes in the fermentation systems during 60 h using the different recycled waters were within the optimal range of ethanol fermentation (pH 4.0 to 5.0). Moreover, the highest content of acids found in the fermentation systems were 15 g/L and 11 g/L for lactic and formic acid, respectively, which was less than the inhibition values reported. There was no significant inhibition of ethanol fermentation system due to the presence of VFAs. This study will aid the development of an integrated treatment plant for food waste and biofuel production.
Direct conversion of glucose to 5-hydroxymethyl-furfural (HMF) using an efficient and inexpensive Boehmite catalyst in dimethyl sulfoxide
Authors: Tang Zhe , Su Jianhui
Published: March 2023

With the aim of developing an efficient and inexpensive catalyst for the production of HMF from glucose, a solid Lewis acid catalyst γ-AlOOH, a common industrial catalyst with easy preparation and low price, was used as the sole catalyst to directly synthesize 5-hydroxymethylfurfural (HMF) from glucose in dimethyl sulfoxide. Various reaction parameters, such as catalyst loading, temperature, reaction duration, and solvent, were investigated. An impressive HMF yield of 61.2% was obtained at the reaction conditions of 130 °C for 3 h. Furthermore, HMF yields from other carbohydrates such as fructose (44.8%), cellulose (50.3%), maltose (53.6%) and sucrose (62.2%) could be achieved using γ-AlOOH as a catalyst. More importantly, the catalyst γ-AlOOH could be reused several times without the loss of its catalytic activities. After five reaction runs, an HMF yield of 57.2% was obtained.
Spruce bark as a source of antioxidant active substances
Authors: Burčová Zuzana , Kreps František , Grivnová Petra , Strižincová Petra , Ház Aleš , Jablonský Michal , Šurina Igor , Schmidt Štefan
Published: March 2023

The antioxidant potential of extracts from spruce bark was studied after Soxhlet extraction with ethanol and n-hexane. Ethanol spruce bark extracts were pre-extracted with a mixture of ethanol and n-hexane in a ratio of 1:5. Residues of the extracts and pre-extracts were added to lard (200 mg/kg) to examine its influence on oxidation stability of lard. The composition of the bark extractives was analyzed by GC/MS. The highest antioxidant activity was observed in the original ethanol extracts (15.0 mmol/mg), which had greater antioxidant activity than alpha-tocopherol (13.9 mmol/mg). The n-hexane extract from the spruce bark had 70% less antioxidant activity than the ethanol extract. The high antioxidant activity of the ethanol extract was due to the presence of resin acids (35%) and stilbenes (12%). These antioxidant-active substances increased the oxidation stability of the lard by 5 h, while the n-hexane extract increased the oxidation stability by only 0.5 h. The spruce bark was found to be an alternative feedstock of compounds with potential for use in foodstuffs as antioxidant.
Changes in composition and structure of water hyacinth based on various pretreatment methods
Authors: Rezania Shahabaldin , Alizadeh Hossein , Cho Jinwoo , Darajeh Negisa , Park Junboum , Hashemi Beshare , Din Mohd Fadhil Md , Krishnan Santhana , Yadav Krishna Kumar , Gupta Neha , Kumar Sandeep
Published: March 2023

The deconstruction of cellulose, hemicellulose, and lignin has varying effects on lignocellulosic biomass. To understand and evaluate these effects it is important to conduct compositional and structural analyses. In this study, the effect of different pretreatments on the composition and structure of water hyacinth (WH) was investigated. The pretreatment methods investigated were acid, alkali, ionic liquid (IL), and microwave-alkali. The structural analysis was completed before and after the pretreatment using scanning electron microscopy. In addition, the biomass recovery rate was measured to evaluate the composition of the WH biomass. Based on the results, all pretreatment methods effectively disrupted the crystalline structure and enhanced the digestibility of the WH through increasing the cellulose and hemicellulose content and reducing the lignin content. The acid pretreatment resulted in high cellulose digestibility while the microwave-alkali pretreatment destroyed only the lignin structure of the WH. The alkali and IL pretreatments increased the cellulose and hemicellulose content of the WH. The highest recovery rate was obtained via IL pretreatment. The acid, microwave-alkali, and alkali pretreatments had the second, third, and fourth highest recovery rates, respectively. This study showed that the biomass recovery rate, compositional makeup, and structural analysis are important to use WH for bioenergy production.
Anatomical, chemical, and mechanical properties of fibrovascular bundles of Salacca (snake fruit) frond
Authors: Hakim Luthfi , Widyorini Ragil , Nugroho Widyanto Dwi , Prayitno Tibertius Agus
Published: March 2023

This research presents the anatomical, chemical, and mechanical properties of fibro-vascular bundles (FVBs) from two species of Salacca (snake fruit) frond: Salaccca sumatrana Becc. and Salacca zalacca Gaert (Voss). The anatomical properties were observed in the cross-section by light microscopy and digital microscopy. The anatomical observation focused on the location of the inner and outer vascular system. In the chemical analysis, FVBs were characterized for cellulose, hemicellulose, Klason lignin, and extractive content. Tensile strength and Young’s modulus were investigated, and the structural implications were considered. The FVBs from salacca frond contained vascular tissue in the cross section had new and different vascular type. Generally, the vascular tissue has a wider area than the sclerenchyma tissue. The FVBs of S. sumatrana and S. zalacca contained 41.75 and 44.60 wt% cellulose, 31.36 and 36.39 wt% hemicellulose, and 27.90 and 33.00 wt% lignin, respectively. The hot water solubility and ethanol-toluene solubility of FVBs of S. sumatrana and S. zalacca showed that extractive content were 2.96 wt% and 5.55 wt%; 18.54 wt% and 25.00 wt.%, respectively. As the diameter of FVBs increased, the tensile strength and Young’s modulus decreased. Increased FVB density will directly increase tensile strength and Young’s modulus. Based on the result, it was concluded that the FVBs of salacca type had significantly different properties compared to other palms’ FVBs, and this study confirmed the correlation between the physical and mechanical properties of the FVBs from salacca frond.
Thermally modified Douglas-fir color preferences of home show attendees
Authors: Conroy Kendall , Yan Li , Morrell Jeffrey J. , Knowles Chris
Published: March 2023

Although thermal modification is primarily used to improve wood durability, it also has a tendency to darken lighter colored hardwoods to make them more valuable. This process might also be useful for darkening softwoods, but it will be important to develop colors that customers prefer. One potential species for this application is Douglas-fir (Pseudotsuga menziesii). Consumer preferences for differing degrees of thermal modification (i.e. darkening) were assessed using a convenience sampling survey at a Home Show in Eugene, Oregon. Respondents provided demographic information then ranked five thermally modified samples with widely differing degrees of darkening based on their most to least preferred colors. The lightest colored sample was most preferred; however, the darkest sample was the second most preferred. There were no preference differences for samples in between the extremes, suggesting that there is some latitude with regard to color that could be used to differentiate modified Douglas-fir from other products.
SPATIAL CHARACTERISTICS OF THE KYIV METROPOLITAN REGION DEVELOPMENT: THE DIMENSIONS OF POLYCENTRICITY
Authors:   Institute of Geography of National Academy of Science of Ukraine, Kyiv, Pidgrushnyi G.P. , Provotar N.I. ,   Institute of Geography of National Academy of Science of Ukraine, Kyiv, Dudin V.S. ,   Technical University of Dortmund, Dortmund
Published: March 2023

This study is aimed to develop a methodology for assessing the polycentricity of socio-economic development and diversification of the metropolitan region functions and identification of developed and prospective centers. The article evaluates the demographic-residential, industrial-logistics and innovation, service, administrative and management, and budget functions of the Kyiv metropolitan region. The study confirmed that the region is characterized by considerable spatial disparities in socioeconomic development. This is related to remarkable polycentricity and essential differences in the intensity and diversification of the main functions’ performance. Typification of the territorial units of the Kyiv metropolitan region by the level of socio-economic development and features of the diversification of the functions was carried out. Solving the problem is based on the development of a balanced and effective spatial organization of the Kyiv metropolitan region and the amplification of a hierarchical system of centers (poles) of development in the suburbs. The latter will perform a number of functions of the metropolis and balance the development of the entire metropolitan region driven by the wide range of suburbanization processes. The scientific novelty of the research lies in the identification of developed and prospective centers of the Kyiv metropolitan region, which is an important basis for developing a strategy for the post-war reconstruction of the territory. It contributes to the contemporary discourse by the development of a research methodology of a quantitative assessment of polycentricity in order to identify the developed and prospective centers of the metropolitan region.
PROJECT ‘KHERSON REGION GEOINFORMATION PORTAL’: INITIATIVES OF CIVIL SOCIETY TO SUPPORT REGIONAL DEVELOPMENT
Authors:   Public Organization Ukrainian Researchers Society, Ostapenko P.O. , Malchykova D.S. ,   Kherson State University, Pylypenko I.O. ,   Kherson State University, Melnychuk А.L. ,   Taras Shevchenko National University of Kyiv, Ostapenko S.O. ,   Institute of Geography of the National Academy of Sciences of Ukraine
Published: March 2023

In 2021, for the first time in Ukraine, a project on creating and supporting a geo-information system for the oblast region was implemented—Geoinformation portal of the Kherson region. Conceptually, the project is based on an inclusive approach: the representation of the region as a complete spatial system through the use of methodological apparatus and tools of geographical research combined with practice-oriented and people-centric direction. This made it possible to comprehensively describe all traditional areas, as well as modern, actual directions of the spatial development of the region. The geo-information portal presents 11 thematic sections containing 58,502 objects, showing 309 indicators and 394 layers of data. The project is an example of successful collaboration between institutions of local government and civil society: the Public Organization Researchers of Ukraine Society, Kherson Regional State Administration, Kherson State University, and territorial communities of Kherson Region. It became the most powerful and successful initiative to support the regional and local development of the Kherson region on the eve of the war. Key characteristics that determine the uniqueness of the implemented project include: (1) generalization in a single register of fundamental scientific geospatial data and relevant information to ensure the daily needs and requests of regional administration and local self-government; (2) strengthening practice-oriented and human-centered accents in the proposed cartographic products through the presentation and visualization of individual ‘non-traditional’ indicators and layers of spatial data; (3) the possibility of using the information system of the portal as an effective decision-making tool both at the level of individual territorial communities and at the level of the region; (4) interactive nature, intuitive interface, which ensures accessibility and ease of use regardless of age characteristics and professional training of the user; (5) the possibility of building educational strategies for schooling and professional education in the region using the resources of the geo-information portal as a digital learning environment.
Burnout of the physiotherapists and encountered stress factors related to coronavirus epidemic in Turkey
Authors: ŞENOCAK Emre , KARACA Seda , TANHAN Abdurrahman , DEMİR Şahin , YİLDİZ OZER Aysel
Published: March 2023

Purpose: The study aims to determine risk factors related to stress due to pandemic, the burnout levels of the physiotherapist, the relationship between these parameters.
Methods: One hundred two physiotherapists, whose sociodemographic information was obtained, were divided into two groups according to disease exposure (CoV and non-CoV group). Pandemic-Associated Stress Factors of the participants were analyzed and Maslach Burnout Inventory (MBI) was used to measure burnout. The independent sample t test was used to detect the difference between the groups. Pearson's correlation analysis was used to find relations in parameters.
Results: 96% of respondents were concerned about getting infected and 98% concerned about infecting their families. Most of the participants were physically and mentally tired (74.5%, 58.8%). The CoV group consisted of 45 (44.11%) physiotherapists who had a history of COVID-19, had patient contact, or worked with coronavirus patients. There was no significant difference in MBI subparameters between the two groups (p<0.05). Physiotherapists with high exposure to COVID-19 were found to have a 3.2 times higher level of stress about feeling compelled to go to work than those with low exposure to it (p=0.02).
Conclusion: Anxiety about being sick and contagious can trigger psychological symptoms such as mental fatigue and sleep disturbance. Although the workload of the participants in our study did not increase, most of them stated that they felt physically exhausted. During the pandemic period, psychological diseases, and burnout in healthcare workers increased tremendously.
Subakromiyal sıkışma sendromlu hastaların el kavrama performanslarında kinezyo bantlamanın akut etkileri: randomize kontrollü çalışma
Authors: BALKİ Selvin , ŞİMŞEK Hacer Hicran
Published: March 2023

Amaç: Etkilenen omuza uygulanan kinezyo bantlamanın (KB), subakromiyal sıkışma sendromu (SSS) hastalarının maksimum kavrama performansında oluşturduğu akut etkileri belirlemek.
Yöntem: Tek taraflı subakromiyal sıkışma sendromu olan 34 hasta, iki gruptan birine rastgele olarak ayrıldı: Sham KB (13 kadın, 5 erkek) ve KB (10 kadın, 6 erkek). KB grubu için deltoid ve supraspinatus kaslarına %10-25 gerilimle inhibe edici KB teknikleri, etkilenen omuza %50-75 gerilimle mekanik düzeltme KB tekniği uygulandı. Sham KB grubunda, iki I-bant (10-cm) akromiyoklavikular eklem ve deltoid distaline gerim olmadan uygulandı. Maksimum kavrama gücü ve süresi, hidrolik el dinamometresi ile başlangıçta ve bantlamadan hemen sonra test edildi. Ayrıca başlangıç ölçümünde, el dinamometresi ile izometrik omuz kas kuvveti ve10-cm görsel analog skalası ile aktiviteye bağlı ağrı düzeyi değerlendirildi.
Bulgular: Demografik özellikler ve başlangıç ölçümlerde gruplar arasında anlamlı fark yoktu (p>0,05). Grup içi karşılaştırmada bantlama sonrasında Sham KB (p=0,013, d=0,425) ve KB (p=0,001, d=0,549) gruplarının maksimum kavrama gücü ölçümlerinde ve KB grubunun (p=0,030, d=0,597) maksimum kavrama süresinde azalma kaydedildi. Gruplar arası karşılaştırma sonucuna göre bantlama sonrasında KB grubunun maksimum kavrama süresinde azalma saptandı (p=0,000, d=1,509).
Tartışma: Subakromiyal sıkışma sendromu olan hastaların etkilenen omzuna inhibitör ve düzeltici kinezyo bantlama tekniklerinin uygulanması, elin maksimum kavrama süresinde akut bir azalmaya neden olabilir.
HR-Commitment and Digital Organizational Communication To Improve the Digital-Quality Services in Private Universities
Authors: Ardiansyah Iwan , Rahmat Taufiq , Masluh Masluh , Heri Heri , Apriliani Diah
Published: March 2023

The main issue in this research is the weak Quality of private universities in utilizing digital media in the industrial era 4.0, which leads to the formation of professionalism in the form of an innovative campus, which according to researchers, is influenced by organizational Commitment and digital organizational communication. Target group private universities in Bandung. This study's descriptive survey research design is based on a verification methodology. Data was collected through survey techniques by distributing questionnaires to as many as 69 respondents, all employees. Analysis in data processing using path analysis. It is based on the findings of the verification analysis, with r2 = 0.587, or 58.7%, as the coefficient of determination. The results show that the Quality of digital services is influenced by organizational Commitment and digital communication, both simultaneously and simultaneously. In comparison, there is still the influence of other external factors, which has not been studied, and is 41.3% academically recognized. Research findings also reveal that optimizing digital services can be done by first improving the Commitment of human resources to utilizing digital media in communication.