bluuebunny/crossref_metadata_2025 huggingface dataset:
Note for the P versus NP Problem (II)
Authors: Vega Frank
Published: June 2024

P versus NP is considered as one of the most fundamental open problems in computer science. This consists in knowing the answer of the following question: Is P equal to NP? It was essentially mentioned in 1955 from a letter written by John Nash to the United States National Security Agency. However, a precise statement of the P versus NP problem was introduced independently by Stephen Cook and Leonid Levin. Since that date, all efforts to find a proof for this problem have failed. Another major complexity class is NP-complete. It is well-known that P is equal to NP under the assumption of the existence of a polynomial time algorithm for some NP-complete. We show that the Monotone Weighted-2-satisfiability problem (MW2SAT) is NP-complete and P at the same time. Certainly, we make a polynomial time reduction from every undirected graph and positive integer k in the Vertex Cover problem to an instance of MW2SAT. In this way, we show that MW2SAT is also an NP-complete problem. Moreover, we create and implement a polynomial time algorithm which decides the instances of MW2SAT. Consequently, we prove that P = NP.
Teorie a praxe hudební výchovy VIII
Authors: Kodejška Miloš
Published: June 2024

The collection entitled Theory and Practice of Music Education VIII captures the contributions of doctoral students and teachers from universities in the Visegrad countries, which were presentedduring the conference of the same name in Prague on 9 and 10 November 2023 at the Pedagogical Faculty of Education, Charles University. The conference has been taking place at two-year intervals since 2009 and has long beenhas been striving to bring together music theory and music practice in general and professional education. The conference and the scientific proceedings were partly financially supported by the Fund for support of scientific activities of PhD students of Charles University, SVV 2023.
Anti‐oxidative and anti‐inflammatory effects of Ginkgo biloba extract (EGb761) on hindlimb skeletal muscle ischemia–reperfusion injury in rats
Authors: Chen Liang‐Yi , Tai Shih‐Huang , Hung Yu‐Chang , Huang Sheng‐Yang , Kuo Zi‐Cheng , Lee Ai‐Hua , Hsu Hao‐Hsiang , Wu Tian‐Shung , Lee E‐Jian
Published: June 2024

In posterior spine surgery, retractors exert pressure on paraspinal muscles, elevating intramuscular pressure and compromising blood flow, potentially causing muscle injury during ischemia–reperfusion. Ginkgo biloba extract (EGb 761), known for its antioxidant and free radical scavenging properties and its role in treating cerebrovascular diseases, is investigated for its protective effects against muscle ischemia–reperfusion injury in vitro and in vivo. Animals were randomly divided into the control group, receiving normal saline, and experimental groups, receiving varying doses of EGb761 (25/50/100/200 mg/kg). A 2‐h hind limb tourniquet‐induced ischemia was followed by reperfusion. Blood samples collected pre‐ischemia and 24 h post‐reperfusion, along with muscle tissue samples after 24 h, demonstrated that EGb761 at 1000 μg/mL effectively inhibited IL‐6 and TNF‐α secretion in RAW 264.7 cells without cytotoxicity. EGb761 significantly reduced nitric oxide (NO) and malondialdehyde (MDA) levels, myeloperoxidase (MPO) activity, and increased glutathione (GSH) levels compared to the control after 24 h. Muscle tissue sections revealed more severe damage in the control group, indicating EGb761's potential in mitigating inflammatory responses and oxidative stress during ischemia–reperfusion injury, effectively protecting against muscle damage.
“My Fellow-Creatures”? Empathy for Slaves in 19th-Century British Travel Writing about America
Authors: Fruzińska Justyna
Published: June 2024

The paper investigates descriptions of slavery in early 19th-century British travel writing about America and ponders the question of the presence of empathy in them. It shows that while most passages referring to the slaves’ situation can hardly be called empathetic, and that within the economy of suffering operating in the discussed travelogues the narrators tend to appropriate the pain of the people whom they observe, there is still a possibility of the texts in question evoking the reader’s empathy. This happens on two levels: first, the reader may empathize with the white traveler; second, and more indirectly, he/she may empathize with the black slave. The paper analyzes how such a response is produced within the said travelogues, relying mostly on Suzanne Keen’s work on narrative empathy.
Hyperbolic lattice point counting in unbounded rank
Authors: Blomer Valentin , Lutsko Christopher
Published: June 2024

We use spectral analysis to give an asymptotic formula for the number of matrices in

SL
⁢

(
n
,
Z
)

\mathrm{SL}(n,\mathbb{Z})

of height at most 𝑇 with strong error terms, far beyond the previous known, both for small and large rank.
Markenzeichen Exil und OrientMoritz Hartmann als Auslandskorrespondent der Kölnischen Zeitung 1852–1862
Authors: Sprengel Peter
Published: June 2024

The liberal pre-March poet and Paulskirche deputy Moritz Hartmann (1821‒1872) earned his living in exile after 1848, not least thanks to the publication of his Paris and London letters, travel features and stories in Joseph DuMont’s Kölnische Zeitung. Of fundamental importance for his reputation as a foreign correspondent was his rumour-ridden stay as a Crimean War correspondent in Turkey in 1854/55, which he himself repeatedly recalled as a trademark.
Adult syndromology: challenges, opportunities and perspectives
Authors: Schmetz Ariane , Ballesta-Martínez Maria Juliana , Isidor Bertrand , Sousa Ana Berta , Wieczorek Dagmar , Bramswig Nuria C.
Published: June 2024

Clinical geneticists and syndromologists have traditionally focused on identifying syndromes in children. However, there is a growing acknowledgment of the need to describe adult phenotypes.

This article provides an overview of the evolving phenotypes of rare genetic syndromes into adulthood, elucidating its challenges, opportunities, and future perspectives. The clinical phenotypes of four adults with Costello syndrome are described to illustrate these aspects.

Phenotypic and genotypic data from four individuals broaden the spectrum of Costello syndrome in adulthood and highlight the high variability in neurocognitive outcome. The clinical data align with previous findings and established genotype-phenotype correlations. Interestingly, two individuals presented with recurrent cancers (bladder cancer and neuroblastoma).

Further studies are imperative to provide reliable information for counselling and management to enable comprehensive understanding of the evolving features of rare syndromic diseases and special health issues into adulthood.
Effects of carboxymethylation and TEMPO oxidation on the reversibility properties of cellulose-based pH-responsive actuators
Authors: Lopes da Costa Lisa , Moreau Céline , Lourdin Denis , Cathala Bernard , Villares Ana
Published: June 2024

Cellulose-based actuators hold great promise for diverse applications, including soft robotics, biomedicine, and electronics. Achieving reversible motion is crucial to design high performance bio-based actuators. In this study, we explore the impact of carboxymethylation and 2,2,6,6-tetramethylpiperidine-1-oxyl radical (TEMPO) oxidation on the reversible performance of cellulose-based pH-responsive actuators. Both methods introduce negatively charged groups onto the surface of cellulose fibers, enabling increased water uptake at high pH. However, comparative analyses revealed structural differences, guiding the design of reversible actuators. Carboxymethylated CNFs (CMCNFs) displayed enhanced water uptake and pH sensitivity, attributed to their less cohesive structure. Actuation and reversibility tests on bilayer films validated these findings. This research advances the understanding of cellulose functionalization for tailored actuation, contributing to the development of programmable materials for multiple applications.
Metabolic dysregulation of tricarboxylic acid cycle and oxidative phosphorylation in glioblastoma
Authors: Trejo-Solís Cristina , Serrano-García Norma , Castillo-Rodríguez Rosa Angelica , Robledo-Cadena Diana Xochiquetzal , Jimenez-Farfan Dolores , Marín-Hernández Álvaro , Silva-Adaya Daniela , Rodríguez-Pérez Citlali Ekaterina , Gallardo-Pérez Juan Carlos
Published: June 2024

Glioblastoma multiforme (GBM) exhibits genetic alterations that induce the deregulation of oncogenic pathways, thus promoting metabolic adaptation. The modulation of metabolic enzyme activities is necessary to generate nucleotides, amino acids, and fatty acids, which provide energy and metabolic intermediates essential for fulfilling the biosynthetic needs of glioma cells. Moreover, the TCA cycle produces intermediates that play important roles in the metabolism of glucose, fatty acids, or non-essential amino acids, and act as signaling molecules associated with the activation of oncogenic pathways, transcriptional changes, and epigenetic modifications. In this review, we aim to explore how dysregulated metabolic enzymes from the TCA cycle and oxidative phosphorylation, along with their metabolites, modulate both catabolic and anabolic metabolic pathways, as well as pro-oncogenic signaling pathways, transcriptional changes, and epigenetic modifications in GBM cells, contributing to the formation, survival, growth, and invasion of glioma cells. Additionally, we discuss promising therapeutic strategies targeting key players in metabolic regulation. Therefore, understanding metabolic reprogramming is necessary to fully comprehend the biology of malignant gliomas and significantly improve patient survival.
A preliminary examination of the effects of childhood abuse and resilience on pain and physical functioning in patients with knee osteoarthritis
Authors: Yoon JiHee , Kim Ayeong (Jenny) , Wilson Jenna M. , Yamin Jolin B. , Schreiber Kristin L. , Edwards Robert R. , Cornelius Marise C. , Campbell Claudia M. , Smith Michael T. , Haythornthwaite Jennifer A. , Sieberg Christine B. , Meints Samantha M.
Published: June 2024

Objectives

We examined associations of a self-reported history of childhood abuse with pain and physical functioning in patients with knee osteoarthritis (KOA) awaiting total knee arthroplasty (TKA). We also explored the potential moderating effects of positive childhood experiences (PCEs), an index of resilience, on these associations.

Methods

Prior to TKA, participants with KOA awaiting surgery (N = 239) completed self-report measures of adverse childhood experiences (ACEs), PCEs, pain, and physical functioning. We evaluated associations of pain and physical functioning (Brief Pain Inventory [BPI] and Western Ontario and McMaster University of Osteoarthritis Index [WOMAC]) based on the experience of ACEs (childhood abuse), with PCEs (childhood happiness and supportive parental care) as potential moderators.

Results

Greater exposure to childhood abuse was positively correlated with BPI pain interference as well as WOMAC pain and functioning scores. Additionally, childhood happiness and supportive parental care moderated the positive associations of childhood abuse with pain and physical functioning; though, surprisingly, the adverse effects of childhood abuse on these outcomes were more pronounced among participants with high levels of childhood happiness and supportive parental care.

Conclusion

Overall, results show an association between a self-reported history of childhood abuse and pain and functioning in patients with KOA awaiting TKA. However, PCEs did not protect against the negative consequences of childhood abuse in our cohort. Further research is needed to validate these associations and gain a more comprehensive understanding of the complex interplay between childhood abuse and PCEs and their potential influences on pain experiences in adults with chronic pain conditions, including KOA.
Patient-reported pain, satisfaction, adverse effects, and deviations from ambulatory surgery pain medication
Authors: Särkilahti Iiris , Reponen Elina , Skants Noora
Published: June 2024

Objectives

Addressing the challenges of ambulatory surgery involves balancing effective pain relief with minimizing the side effects of pain medication. Due to the heightened risk of opioid abuse, Helsinki University Hospital (Finland) has had a stringent oxycodone prescription policy. This policy prompts an exploration into whether ambulatory surgery patients experience severe post-surgical pain and whether an increase in prescribed opioids would cause elevation in adverse effects.

Methods

This prospective cohort study, with a 1-week follow-up, included 111 adult ambulatory surgery patients (orthopaedics, urology). The patients documented their pain levels within the first postoperative week (using a numerical rating scale [NRS] of 0–10) and pain medication intake up to two days postoperatively. Furthermore, they completed a questionnaire assessing their satisfaction with pain relief, medication-related adverse effects, and adherence to instructions. Medication intake was cross-referenced with the provided instructions and prescriptions.

Results

A notable 56% of patients reported experiencing intense pain (NRS ≥5) within a week following surgery. Of these, 52% received a single dose of slow-release oxycodone (5–20 mg) at discharge for use on the night of surgery. Predominantly prescribed pain medications included a combination of paracetamol and codeine (64%) or ibuprofen (62%). Satisfaction rates were high, with 87% expressing satisfaction with pain medication given at hospital discharge and 90% expressing contentment with the prescribed medication. The most common adverse effects were tiredness/grogginess (45%), sleep disturbances (38%), nausea (37%), and constipation (27%). Also, 24% of patients self-reported deviations from medication instructions. A comparison of self-reported and instructed medications revealed that 14% exceeded prescribed dosages, and 28% opted for preparations different from those prescribed. Notably, patients who self-reported deviations from instructions differed from those objectively deviating from instructions.

Conclusions

Although 56% of patients had intense pain, the majority expressed satisfaction with the provided pain relief. Instances of non-adherence to medication instructions were prevalent, often going unnoticed by the patients themselves.
Eine altbabylonische Eheurkunde aus dem Irak-Museum
Authors: Hussein Laith M.
Published: June 2024

The tablet IM 8790, which comes from Nippur, dates to the 33rd year of Ḫammurapi of Babylon, and deals with the marriage of a nadītum priestess of the god Nergal, is a perfectly preserved document with both case and tablet.
A solitary fibrous tumor in the cerebellar hemisphere parenchyma: a case report and literature review
Authors: Xing Lihong , Zhuo Liyong , Zhang Yu , Zhao Yingjia , Yuan Shuangrui , Wang Jianing , Yin Xiaoping
Published: June 2024

Solitary fibrous tumors (SFTs) of the central nervous system occurring in the brain parenchyma are rare. We report an elderly female who presented with intermittent headaches and a solitary mass was noted in the right cerebellum that was misdiagnosed preoperatively as a hemangioblastoma. The postoperative pathologic diagnosis was a SFT. When an isolated mass appears in the cerebellar hemisphere with slight hyperdensity on CT images, heterogenous signals on T1WI and T2WI images, and a nodule with a hypointense signal on a T2WI image, the possibility of a SFT should be considered.
Synthesis of Mn doped nanostructured zinc oxide thin films for H2 gas sensing
Authors:   Department of medical physics, College of Applied Science, University of Fallujah, Iraq, Allawai M. F. , Sada M.  S. ,   Department of Physics, College of Education, University of Masan, Iraq, Jabbar A. M. ,   Department of Physics, College of Science, Mustansiriyah University, Iraq, Hussein K. N. ,   Department of Radiology, Al-Manara College for Medical Science, Iraq, Habubi N. F. ,   Department of Radiation and Sonar Technologies, Al-Nukhba University College, Iraq, Chiad S. S. ,   Department of Physics, College of Education, Mustansiriyah University, Iraq, Jadan M. ,   Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia,   Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia
Published: June 2024

Thin films of zinc oxide and (ZnO:Mn) with 1% and 3% concentrations were created at 400 °C by spray pyrolysis. According to X-ray diffraction (XRD) investigation, ZnO films are polycrystalline and have a cubic structure with a distinct peak in one direction (101). The grain size increases as manganese content rise, from 12.66 nm to 14.66 nm. While the strain (ε) for ZnO reduced after manganese doping, it decreased from 27.36 to 23.63. Surface topography and nanostructure study reveal that as the manganese (Mn) content of ZnO films increased, cluster grain size, average roughness, and root mean square roughness (Rrms) all significantly reduced. SEM images show substantial morphological changes from flat islands to spherical nano-grains post-manganese via Mn content. The average transmittance was >70% in the visible area for Undoped ZnO and 1, 3% Manganese doping optical transmittance demonstrates exceptional optical transparency. When doping levels are increased by 1% or 3%, the absorption coefficient rises. The optical band gap widens in ZnO: Mn film for allowed direct transition has been decreased from (3.32 to 3.21) eV. Results illustrate that the films' refractive index and extinction coefficient decreases with increasing Mn Doped. Hydrogen gas decreases resistance in ZnO films, suggesting p-type behavior. Doping with 3% Mn increases resistance. Decreased sensitivity with higher Mn content after hydrogen gas exposure indicates increased electrical resistance in the film.
Electrochemical performance of rice grains like high Mn-doped anatase TiO2 nanoparticles as lithium-ion batteries electrode material
Authors:   Northeast Petroleum University, Department of petroleum and chemical engineering, Qinhuangdao 066004, Hebei Province, China, Zhao H. Q. , Li L. ,   Northeast Petroleum University, Department of petroleum and chemical engineering, Qinhuangdao 066004, Hebei Province, China, Yuan Q. S. ,   Northeast Petroleum University, Department of petroleum and chemical engineering, Qinhuangdao 066004, Hebei Province, China
Published: June 2024

Rice grain-shaped high Mn-doped anatase TiO2(TMO) nanocrystals have been fabricated through redox method at room temperature using several simple chemical reagents. The samples were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy(XPS), scanning electron microscopy(SEM), transmission electron microscopy and High-resolution transmission electron microscopy (TEM & HRTEM). It indicates that the manganese element was successfully incorporated into the anatase TiO2 nanostructure, and the atomic Mn-to-Ti could reach up to 18.2%. We also analyzed the merits and weaknesses of the nanostructured TMO in electrochemistry by dint of some relevant measures. And the cause of influence on the TMO electrochemical properties was briefly discussed.
Approximation characteristics of the Nikol'skii-Besov-type classes of periodic functions of several variables in the space $B_{q,1}$
Authors: Fedunyk-Yaremchuk O.V. , Hembars'ka S.B. , Romanyuk I.A. , Zaderei P.V.
Published: June 2024

We obtained the exact order estimates of approximation of periodic functions of several variables from the Nikol'skii-Besov-type classes $B^{\Omega}_{p,\theta}$ by using their step hyperbolic Fourier sums in the space $B_{q,1}$. The norm in this space is stronger than the $L_q$-norm. In the considered situations, approximations by the mentioned Fourier sums realize the orders of the best approximations by polynomials with "numbers" of harmonics from the step hyperbolic cross. We also established the exact order estimates of the Kolmogorov, linear and trigonometric widths of classes $B^{\Omega}_{p,\theta}$ in the space $B_{q,1}$ for certain relations between the parameters $p$ and $q$.
Algebras of symmetric and block-symmetric functions on spaces of Lebesgue measurable functions
Authors: Vasylyshyn T.V.
Published: June 2024

In this work, we investigate algebras of symmetric and block-symmetric polynomials and analytic functions on complex Banach spaces of Lebesgue measurable functions for which the $p$th power of the absolute value is Lebesgue integrable, where $p\in[1,+\infty),$ and Lebesgue measurable essentially bounded functions on $[0,1]$. We show that spectra of Fréchet algebras of block-symmetric entire functions of bounded type on these spaces consist only of point-evaluation functionals. Also we construct algebraic bases of algebras of continuous block-symmetric polynomials on these spaces. We generalize the above-mentioned results to a wide class of algebras of symmetric entire functions.
Computer modeling of transient processes in LED modules
Authors: Kogut I.T. , Demyanchuk T.M.
Published: June 2024

In this paper, a theoretical analysis and a practical study of the transient processes occurring when the LED modules are switched on are carried out. Light-emitting diode (LED) modules are a parallel, serial or mixed connection of individual light-emitting diodes in a discrete or integrated design. The non-uniformity of the voltage drop at the moment of switching on series-connected LEDs or series-connected LED cells containing parallel-connected LEDs is shown. This may be the reason for a short-term electrical breakdown of their p-n junctions. The obtained results can be useful for predicting the durability and reliability of LED devices.
Caracterización de la autoeficacia de futuros profesores de Matemáticas de educación secundaria
Authors: Salomón-Plata María Soledad , Chamoso-Sánchez José María , Diego-Mantecón José Manuel , Rodríguez-Sánchez María Mercedes
Published: June 2024

[Objective] The aim of this paper is to analyze the self-efficacy of prospective Secondary School Mathematics Teachers at the end of their initial teacher training. [Methodology] The sample was 98 prospective Secondary School Mathematics Teachers who were studying in a University Master’s program for Secondary Education Teachers. The data were their written reflections, which were organized into information units and classified according to the five sources of self-efficacy collected from specialized literature: professional knowledge; classroom practice; physiological, affective and motivational states; cooperation with colleagues and parents; and experience. Subsequently, a content analysis made it possible to identify common topics among them. [Results] The results showed that a teacher's self-efficacy was still in the process of development, far from what might be expected in teachers completing their initial training period. The need to increase the confidence of prospective teachers in their skills to translate knowledge of content into student learning, to implement different teaching strategies and, especially, to increase their confidence in their emotional skills is highlighted. [Conclusions] The results provide valuable information for teacher education programs by indicating the state of teacher self-efficacy at the end of the initial training period. In addition, a tool is provided to analyze the teaching self-efficacy of prospective Secondary Mathematics teachers. All this opens up future lines of research in various areas.
Effect of changes in surface visual properties of heat-treated wood on the psychological preference
Authors: Zhang Yue , Guo Yeyingzi , Wei Peixing , He Zhengbin , Yi Songlin , Zhao Guangjie
Published: June 2024

Heat treatment of wood is an attractive, environmentally friendly modification, which can change surface visual properties of wood including color and grain, but it is unclear how heat-treated wood is perceived and evaluated compared with untreated wood. In this paper, Chinese fir was heat-treated at 160, 180, 200, or 220 °C for 2 or 4 h. The changes of wood surface color and grain contrast were measured. A subjective questionnaire and eye-tracking technology were used for psychological evaluation. The results showed that changes in the visual properties of heat-treated wood had a significant effect on psychological preference—heat-treated wood was generally more preferred than the untreated, particularly at 200 °C for 4 h. Grain contrast and hue played an important role in the preference for heat-treated wood. The preference gave people the positive psychological impression of warmth, weight, cost, prevalence, and comfort. Eye-tracking analysis showed that Chinese fir heat-treated at about 200 °C with high hue value and clear grain contrast was easier to gain more visual attention. The results would have a high technical reference value for the heat-treated wood in product visual design.
Functional requirements and design strategy of E-sports chair based on the KANO model,
Authors: Li Ze-Qun , Hu Sun-yue , Wang Jin-huan , Yu Hui-ling , Fu Xiao-Han , Yang Jun-hui , Li Lu-Ming , Li Song , Zhu Wen-kai
Published: June 2024

A design strategy was developed, based on the KANO model, for health-centric and sustainable e-sports chair products. Specifically, this study investigated the functional requirements of e-sports chairs using interviews and questionnaires to guide their subsequent design. The functional requirements of the e-sports chair were evaluated using the KANO model. In addition, a satisfaction coefficient was introduced to optimize the traditional KANO model and to obtain the functional requirement classification of the e-sports chair. The sensitivity coefficient was used to evaluate whether the e-sports chair functions attract users. The research results show that users have clear functional requirements for e-sports chairs, and there is a significant correlation between satisfaction and sensitivity. Moreover, the adjustability and air permeability of the e-sports chair greatly improves user satisfaction, and the non-difference function can simplify the process by reducing production costs. This research develops a hierarchical model of demand for e-sports chairs and categorizes the results by essential, one-dimensional, attractive, non-differentiated, and sensitivity requirements. Furthermore, the main attributes of user preferences for e-sports chairs are explored, which provides a certain theoretical basis for the subsequent design and production of e-sports chairs.
Effects of foliar biostimulants and two substrates (organic and conventional) on the aerial biomass and the major steviol glycosides (stevioside and rebaudioside A) of two Stevia rebaudiana (Bertoni) Bertoni cultivars in a pot experiment in Greece.
Authors: Evangelou Evangelos I , Lommen Willemien JM , Gertsis Athanasios
Published: June 2024

Background: Steviol glycosides (SGs) from Stevia rebaudiana (Bertoni) Bertoni have garnered global interest due to their intense sweetness (over 300 times sweeter than sucrose) with negligible calories and potential health benefits. This study aims to address the low productivity of Greek stevia crops in terms of dry leaf yield (1235 kg/ha) despite favorable Greek agro-climatic conditions. Aim: To investigate the agronomic reasons behind the low productivity of stevia cultivation in Greece, with final target to enhance the yield of dry leaves and major steviol glycosides (SGs) by exploring new cultivar and nutrition management strategies. Approach: A pot experiment assessed the impact of three foliar plant biostimulants (calcite, seaweed extract, and amino acids) and two soil fertilizers (organic and conventional) on aerial biomass productivity and major steviol glycosides (stevioside and rebaudioside A) of two new stevia cultivars (cvs Olga and Ambrosia). Key growth and productivity traits such as height, covered area, leaf chlorophyll concentration, yield in dry leaves, leaf SGs concentration, and rebaudioside A/stevioside ratio were measured. Main results: Under optimal Greek agro-climatic conditions (day length > 13 h, average temperature 23.4°C, soil moisture 41 - 43%, harvest time ≥ 110 DAT), an organic substrate enriched with N rate 1.2 g per plant from high-quality organic fertilizer (C/N < 20), along with a combination of foliar plant biostimulants (calcite 0.3%, seaweed extract 0.02%, amino acids 0.2% at low dose rates) facilitated significant improvements in dry leaf yield (87 g per plant) and major steviol glycosides concentration (17.6 g per plant), with major SGs concentration reaching 20.28% (11.09% stevioside + 9.22% rebaudioside A), and the highest rebaudioside A/stevioside ratio (0.83) in the tested stevia cultivar (cv. Olga). Conclusion: The study suggests that the current substrate (N rate 0.88 g/plant) and cultivar (cv. SRB-128) contribute to the low productivity of stevia cultivation in Greece. It highlights the potential of suitable cultivars treated with appropriate substrate and foliar plant biostimulants to bridge the productivity gap between conventional and organic farming in the Mediterranean region. However, further research on biostimulant mechanisms, cultivar selection, and nutrition management is necessary to optimize leaf biomass, steviol glycosides concentration, and rebaudioside A/stevioside ratio across diverse local environments.
Gambaran Faktor Agama dalam Penggunaan Kontrasepsi pada Wanita Usia Subur di Ciputat Tangerang Selatan
Authors: Nasir Narila Mutia
Published: June 2024

Salah satu isu kesehatan masyarakat di Indonesia adalah penggunaan kontrasepsi. Banyak aspek yang mungkinmempengaruhi penggunaan kontrasepsi termasuk didalamnya adalah faktor agama. Penelitian ini bertujuan untukmelihat gambaran faktor agama dalam penggunaan kontrasepsi pada wanita usia subur di Ciputat, TangerangSelatan, Indonesia. Desain studi penelitian ini adalah cross-sectional. Sembilan puluh enam wanita usia suburdipilih secara purposive sebagai responden. Mereka diwawancarai dengan menggunakan kuesioner yang terstrukturdi rumah mereka masing-masing. Analisis data dilakukan secara deskriptif. Hasil studi menunjukkan bahwa Islamadalah mayoritas agama yang dipeluk oleh responden (99,0%). Sebanyak 62,5% responden menggunakan suntiksebagai metode kontrasepsi. Sementara itu, tubektomi hanya digunakan oleh 5,2% responden. Walaupun 48,3%pengguna kontrasepsi suntik mengatakan jenis kontrasepsi itu dilarang, tetapi mereka tetap mengguanakannya.Selanjutnya, 40,0% responden yang menggunakan jenis kontrasepsi tubektomi menyatakan bahwa agamanyatidak membolehkan metode tersebut. Agama mungkin tidak berperan penting dalam penelitian ini. Analisis lebihlanjut dibutuhkan untuk menggali mengapa responden tetap menggunakan kontrasepsi meskipun mereka berpikirmetode tersebut tidak dibolehkan dalam agamanya.
Faktor-Faktor yang Berhubungan dengan Perilaku Masyarakat Tentang PSN 3M Plus di Wilayah Kerja Puskesmas Ciputat Timur Tahun 2019
Authors: Nurmala Viqha Septy , Baequni Baequni
Published: June 2024

The eradication of DBD will be successful if PSN 3M Plus efforts are carried out systematically, continuously in the form of together movements so that it can change people’s good behavior and healthy behavior. Because of this, the purpose of this study was to determine the factors associated with community behavior about PSN 3M Plus in the working area of East Ciputat Health Center in 2019. This research was a quantitative study with a cross sectional study design among 158 samples collected using a questionnaire through the interview method. The results showed that most of the community or respondents were well behaved (79,7%). Factors related are attitude and education, )). whereas, the factors that have no relationship with PSN 3M Plus behavior were knowledge, employment status, credibility, resources, family’ support, health workers support, kader support, and public figure support. The results of observations about availability of facilities, most of the community don’t have abate powder or larva eradication drugs. While the results of observations about the environment, people are still hanging clothes outside the closet, there are still ponds or lakes. The advice given is needed for community service in the environment and to apply policies or regulations on “Jumat bersih”and “Gerakan 1rumah 1 Jumantik”  in the local environment.keywords: PSN 3M Plus, Behavior, Cross Sectional Abstrak Pemberantasan penyakit DBD akan berhasil dengan baik jika upaya PSN 3M Plus dilakukan dengan sistematis, terus-menerus berupa gerakan serentak sehingga dapat mengubah perilaku masyarakat ke arah perilaku yang baik dan sehat. Tujuan penelitian ini adalah untuk mengetahui faktor-faktor yang berhubungan dengan perilaku masyarakat tentang PSN 3M Plus di wilayah kerja Puskesmas Ciputat Timur tahun 2019. Penelitian ini merupakan penelitian kuantitatif dengan menggunakan desain cross sectional pada 158 sampel yang dikumpulkan menggunakan kuesioner melalui metode wawancara. Hasil penelitian menunjukan sebagian besar masyarakat atau responden berperilaku dengan baik (79,7%). Faktor yang berhubungan adalah variabel sikap dan status pendidikan, sedangkan faktor yang tidak berhubungan adalah pengetahuan, status pekerjaan, kepercayaan, sumber informasi, dukungan keluarga, dukungan petugas kesehatan, dukungan kader, dukungan tokoh masyarakat. Hasil observasi tentang ketersediaan sarana sebagian besar masyarakat tidak memiliki bubuk larvasida atau obat pemberantasan jentik. Sedangkan hasil observasi tentang lingkungan, masyarakat masih menggantungkan pakaian di luar lemari, masih terdapat empang atau danau. Sehubung dengan hal tersebut, saran yang diberikan adalah diperlukan kerja bakti untuk melakukan kegiatan tersebut di lingkungan setempat dan terapkan kebijakan atau peraturan tentang Jum’at bersih dan “Gerakan 1 rumah 1 Jumantik” di lingkungan setempat.Kata kunci : PSN 3M Plus, Perilaku, Cross Sectional
Hubungan Kualitas Tidur Dengan Kecerdasan Emosional Selama Masa Pandemi Covid-19 Di Tahun 2021 Pada Mahasiswa Fakultas Kedokteran Universitas Pembangunan Nasional Veteran Jakarta
Authors: Natanel Handro Steve , Pasiak Taufiq Fredrik , Prabowo Imam , Makkiyah Feda Anisah , Nurrizka Rahmah Hida
Published: June 2024

Sleep quality may affect many important things in life. Medical students are one of the groups at risk of experiencing poor sleep quality, especially during the COVID-19 pandemic. Various stressors to medical students might cause poor sleep quality and affect emotional intelligence which is an important indicator of social functioning. The purpose of this study was to determine the relationship between sleep quality and emotional intelligence during the COVID-19 pandemic in medical students. This research is a cross-sectional study. Data collection was done by a simple random sampling technique with a total sample of 120 respondents. Data based on the characteristics of respondents, univariate analysis, and bivariate analysis using the Spearman correlation test. The instruments used are the Pittsburgh Sleep Quality Index and the Schutte Emotional Intelligence Scale. The results of the bivariate analysis showed a p-value of 0.000 < 0.05 (α) and a calculated r-value of 0.674. Therefore, it can be concluded that there is a strong relationship between sleep quality and emotional intelligence in medical students during the COVID-19 pandemic.Keywords: COVID-19 Pandemic, Emotional Intelligence, Medical Student, Sleep QualityAbstrak Tidur yang berkualitas dibutuhkan oleh makhluk hidup. Kualitas tidur yang terganggu dapat mempengaruhi kesehatan karena dapat mempengaruhi proses metabolik, kesehatan fisik, mental, kemampuan kognitif, dan kecerdasan emosional. Mahasiswa kedokteran merupakan salah satu kelompok yang berisiko mengalami kualitas tidur yang buruk, terutama di masa pandemi COVID-19. Berbagai stresor pada mahasiswa kedokteran dapat menyebabkan kualitas tidur yang buruk dan mempengaruhi kecerdasan emosional yang merupakan indikator penting dari fungsi sosial. Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara kualitas tidur dengan kecerdasan emosional selama pandemi COVID-19 pada mahasiswa kedokteran. Penelitian ini merupakan penelitian cross-sectional. Pengumpulan data dilakukan dengan teknik simple random sampling dengan jumlah sampel 120 responden. Data dianalisis berdasarkan karakteristik responden, analisis univariat, dan analisis bivariat menggunakan uji korelasi Spearman. Instrumen yang digunakan adalah Pittsburgh Sleep Quality Index dan Schutte Emotional Intelligence Scale. Hasil analisis bivariat menunjukkan nilai p-value 0,000 < 0,05 (α) dan nilai r hitung 0,674. Oleh karena itu, dapat disimpulkan bahwa terdapat hubungan yang kuat antara kualitas tidur dengan kecerdasan emosional pada mahasiswa kedokteran selama masa pandemi COVID-19.Kata kunci: Kualitas Tidur, Kecerdasan Emosional, Mahasiswa Kedokteran, Pandemi COVID-19
Faktor-Faktor yang Berhubungan dengan Kelelahan Kerja pada Guru Sekolah Menengah Atas (SMA) dalam Kondisi Bekerja dari Rumah
Authors: Gunawan Dio , Febrianti Febrianti
Published: June 2024

Work fatigue often occurred amongteachers before COVID-19 pandemic. Working from home due to pandemic COVID-19, might cause work burnout for high school teachers. Therefore, this study aimed to determine the factors associated with work burnout in high school teachers in WFH conditions. This study used a cross-sectional study design with snowball sampling and accidental sampling where the number of respondents was 144 high school teachers. Data analyzed with chi square test. The results showed that sleep quality (p-value 0.024), interpersonal relationships (p-value 0.000) and length of work online (p-value 0.022) were associated with work fatigue. It is suggested to the health office to work together with the education and culture office to spread educational media to increase the knowledge of teachers so that they can improve sleep quality, increase happy interpersonal communication, and implement the 20-20-20 formula when working in front of a computer screen or device to reduce eye fatique.Keywords: Work Fatigue, High School Teacher, Work-From Home (WFH)AbstrakKelelahan kerja kerap terjadi pada guru sebelum pandemi COVID-19. Adanya kondisi bekerja dari rumah akibat  pandemi COVID-19, berpotensi menimbulkan kelelahan kerja pada guru SMA. Penelitian ini bertujuan untuk mengetahui faktor-faktor yang berhubungan dengan kelelahan kerja pada guru SMA dalam kondisi bekerja dari rumah. Penelitian dilakukanmenggunakan desain studi cross sectional dengan teknik snowball sampling dan accidental sampling dimana jumlah responden sebanyak 144 guru SMA. Analisis data dilakukan dengan uji chi-square. Hasil penelitian menunjukkan adanya hubungan antara kualitas tidur (p-value 0,024), hubungan interpersonal (p-value 0,000) dan lama kerja online (p-value 0,022) dengan kelelahan kerja pada guru SMA dalam kondisi bekerja di rumah. Disarankan kepada dinas kesehatan agar bekerjasama dengan dinas pendidikan dan kebudayaan menyebarkan media edukasi untuk meningkatkan pengetahuan para guru agar mereka dapat meningkatkan kualitas tidur, meningkatkan komunikasi interpersonal yang membahagiakan, dan menggunakan rumus 20-20-20 ketika bekerja di depan layar komputer atau gawai untuk mengurangi kelelahan mata.Kata Kunci: Kelelahan Kerja, Guru SMA, Work-From Home (WFH)
DETERMINAN KEJADIAN KOMPLIKASI PERSALINAN DI INDONESIA (Analisis Data Survei Demografi dan Kesehatan Indonesia Tahun 2017)
Authors: Hulwatullaini Hulwatullaini , Rosidati Catur
Published: June 2024

AbstractDelivery complictions are conditions that can harm health on mother and her infant in delivery. The purpose of this study was to determine the factors that most influence the delivery complications in Indonesia. This study used the Indonesian Demographic and Health Survey (IDHS) data in 2017. The research design used was a cross sectional design. The data analysis used was a multivariate logistic regression prediction model. The number of samples was 13,261 mothers who had given birth with the last birth occurred in the five years preceding the survey.The results showed nine variables were determinants of delivery complication. The most determinant factor affecting delivery complications was the pregnancy complications with an odds ratio of 1,742 (95% CI 1,519-1,999). For this reason, it is necessary to collaborated with various parties and strengthen policies in an effort to detect high risk pregnancies to prevent delivery complications.Keywords: complications, delivery, determinants of IslamAbstrakKomplikasi persalinan merupakan keadaan yang dapat membahayakan kesehatan dan keselamatan ibu dan bayi. Tujuan dari penelitian ini adalah mengetahui factor yang paling berpengaruh terhadap kejadian komplikasi persalinan di Indonesia. Penelitian ini menggunakan data Survei Demografi dan Kesehatan Indonesia (SDKI) tahun 2017. Desain penelitian yang digunakan adalah cross sectional. Analisis data yang digunakan multivariat dengan regresi logistik model prediksi. Jumlah sampel pada penelitian ini sebanyak 13.261 responden yang pernah melahirkan dengan persalinan terakhir terjadi dalam lima tahun sebelum survei.Hasil penelitian menunjukkan bahwa terdapat sembilan variabel yang menjadi determinan kejadian komplikasi persalinan di Indonesia tahun 2017. Adapun faktor yang paling dominan mempengaruhi kejadian komplikasi persalinan adalah variabel komplikasi kehamilan dengan nilai odds ratio sebesar 1,742 (95% CI 1,519-1,999). Untuk itu, perlu adanya kerjasama berbagai pihak serta penguatan kebijakan dalam upaya deteksi dini kehamilan risiko tinggi guna mencegah terjadinya komplikasi persalinan.Kata Kunci: komplikasi, persalinan, determinan, Islam
The roadmap to energy security in Egypt
Authors: Shaaban Mostafa
Published: June 2024

In response to the increasing demand of electricity in Egypt, I introduce a new approach to dynamic temporal and spatial sustainability assessment modeling of technologies for electricity planning with an analysis of the decision-making process of multiple actors in the energy sector and its impact on climate change. I use a novel approach of integrating multi-criteria decision analysis, spatial geographic information system data analysis and agent-based modeling.
Water allocation in transboundary river systems in times of climate change
Authors: Link P. Michael
Published: June 2024

Rivers are the lifelines for large shares of the global population Now climate change adds uncertainty to water availability in many transboundary river systems, making it hard or impossible for some countries to comply with existing treaties and affecting societal stability. In our research within CliSAP, we have developed a theoretical framework for the assessment of water conflict and cooperation in times of climate change. The framework links environmental change to altered water availability. This in turn has effects on individual human wellbeing in the riparian countries.One case study that has been our particular focus is the Nile River Basin. Results indicate that Egypt’s water allocation goals can not be met in a business-as-usual scenario, increasing the likelihood of the downstream countries engaging in conflicting strategies with their upstream neighbors.
Climate change and planning for the military
Authors: Brzoska Michael
Published: June 2024

A core debate about the consequences of climate change concerns its security-related aspects. Elements of that debate include the expected extent of climate as well as definitions of security. Official documents on national security and defense planning are investigated with respect to these two elements of debate. A content analysis of relevant documents from 38 countries reveals a diverse response by national security establishments to the challenges presented by climate change, which also changes over time. Seven potential roles for armed forces in response to climate change are identified and quantified for the selected documents. A predominant expectation is a greater demand for disaster relief by armed forces. However, there are also governments which expect an increase in traditional security threats, as well as governments who do not foresee any security challenge resulting from climate change.
Utilización de compuestos de plata en la producción animal y su impacto sobre parámetros fisiológicos: Una revisión
Authors: Castro-Silva Yeilin , WingChing-Jones Rodolfo
Published: June 2024

La resistencia bacteriana a distintos antibióticos ha generado interés en la búsqueda de alternativas para su utilización. El avance de la nanotecnología ha permitido desarrollar nanopartículas de diferentes metales, entre ellos la plata. Con la variación en tamaño y área superficial, estas nanopartículas presentan mayor efectividad y menor toxicidad que los compuestos de plata utilizados con anterioridad. Las nanopartículas de plata (AgNPs) actúan contra bacterias, hongos, garrapatas y larvas; sin embargo, la mayoría de los ensayos se han realizado in vitro. Existen diferentes métodos de síntesis de AgNPs, lo cual genera variaciones en los resultados de los ensayos, dificultando la recomendación de un rango de dosis adecuado según la información ya existente. El objetivo de esta revisión fue valorar las AgNPs como agente mejorador en los sistemas productivos de animales de interés zootécnico, definiendo la relación entre la concentración aplicada y la respuesta de diferentes agentes que afectan la salud de los animales. Se consultaron un total de 142 artículos científicos en diversas bases de datos, los cuales se agruparon en acuicultura, avicultura, bacterias, hongos, garrapatas y mosquitos. En base a este estudio, se recomienda realizar ensayos in vivo para asegurar que la actividad que se le atribuye a las AgNPs se mantenga en el uso diario en la producción animal, así como repetir estudios con los mismos métodos de síntesis para unificar y comparar la información.
Suplementación con pulpa de café deshidratada en vacas lecheras y su efecto en el desempeño productivo
Authors: Fernández-Navarro Ana Laura , Rojas-Bourrillon Augusto , Campos-Granados Carlos M.
Published: June 2024

Se evaluó el efecto de la inclusión de pulpa de café deshidratada en dietas de vacas lecheras en un sistema de pastoreo, en la zona de Copey del cantón de Dota, en San José, Costa Rica. El experimento se realizó con 30 vacas agrupadas de acuerdo con características similares en cuanto a número de parto, producción de leche, días en lactancia y condición corporal. Se utilizaron 3 tratamientos con 10 repeticiones cada uno: Control no suplementado, Tratamiento 1 (1 kg MF de pulpa de café/animal/día sustituyendo 1 kg de cáscara de banano maduro) y Tratamiento 2 (2 kg MF de pulpa de café/animal/día sustituyendo 1 kg de alimento balanceado). Se llevó un registro semanal por animal de la producción y calidad de leche, de células somáticas (CCS) y nitrógeno ureico en leche (NUL), así como de la condición corporal de los animales. También se recolectó información sobre los costos de las dietas evaluadas. Se utilizó un análisis de medidas repetidas en el tiempo con un modelo linear mixto, analizado con el software estadístico R y una prueba de Tukey para determinar la significancia (p < 0.05) de los posibles efectos de los distintos tratamientos. No se encontraron diferencias significativas (p ˃ 0.05) para ninguna de las variables de producción, calidad de leche ni condición corporal en los tratamientos evaluados. Sin embargo, sí se logró una reducción de un 3,4% en el costo de la dieta con la inclusión de 2 kg MF de pulpa de café deshidratada Tratamiento 2), logrando un mismo rendimiento en la producción y calidad de la leche. Bajo las condiciones de esta investigación, se concluye que la suplementación con pulpa de café deshidratada no tuvo efecto sobre el desempeño productivo de vacas en producción de leche, pero sí una reducción en los costos de alimentación de los animales, lo cual debe valorarse como una ventaja en el uso de este suplemento en dietas de ganado lechero.