bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of impact of climate change on the streamflow of Idamalayar River Basin, Kerala
Authors: Reshma C. , Arunkumar R.
Published: June 2023

This study investigates the impacts of climate change on water availability in the Idamalayar basin, Kerala. Soil and Water Assessment Tool (SWAT), Hydrologic Engineering Centre – Hydrologic Modelling System (HEC-HMS), and bias-corrected climate change data were used to simulate future streamflows. The performances of SWAT and HEC-HMS were assessed using four statistical indices (R2, Nash–Sutcliffe efficiency, percentage bias, and RSR). SWAT slightly outperformed HEC-HMS. The CMIP6 general circulation models (GCMs) were selected using PROMETHEE-2. The variations in climate variables and streamflows were studied for three future periods, i.e., near-future (2031–2040), mid-future (2051–2060), and far-future (2071–2080) under three shared socio-economic pathway (SSP) scenarios (SSP126, SSP245, and SSP585). The projections of GCMs show different patterns in variation of precipitation. Generally, there is a slight increase in annual precipitation. However, there was a notable decline in peak in July. An additional peak was often seen in October. The maximum and minimum temperatures showed a decreasing trend. The average annual streamflow reduction under SSP126 was approximately 25.63, 27.92, and 26.24% in the near, mid, and far future, respectively. Under SSP245, the average decrease was 30.71, 16.06, and 19.06% for the near, mid and far future, respectively. For SSP585, there was 12.73% increase in the far-future period.
A review of microplastic removal from water and wastewater by membrane technologies
Authors: Acarer Seren
Published: June 2023

Microplastics (MPs) cannot be completely removed from water/wastewater in conventional wastewater treatment plants (WWTPs) and drinking water treatment plants (DWTPs). According to the literature analysis, membrane technologies, one of the advanced treatment technologies, are the most effective and promising technologies for MP removal from water and wastewater. In this paper, firstly, the properties of MPs commonly present in WWTPs/DWTPs and the MP removal efficiency of WWTPs/DWTPs are briefly reviewed. In addition, research studies on MP removal from water/wastewater by microfiltration (MF), ultrafiltration (UF), nanofiltration (NF), reverse osmosis (RO), and membrane bioreactors (MBRs) are reviewed. In the next section, membrane filtration is compared with other methods used for MP removal from water/wastewater, and the advantages/disadvantages of the removal methods are discussed. Moreover, the problem of membrane fouling with MPs during filtration and the potential for MP release from polymeric membrane structure to water/wastewater are discussed. Finally, based on the studies in the literature, the current status and research deficiencies of MP removal by membrane technologies are identified, and recommendations are made for further studies.
Cognitive Deficits: Verbal and Semantic Fluency in People Living with
HIV and AIDS
Authors: Ivanova Ganka , Alhrahsheh Rakan , Kukov Kaloyan
Published: June 2023

Background:

Since the beginning of the HIV epidemic, the virus has taken millions of
lives worldwide. The United Nations AIDS Fund’s statistics reported that deaths caused by HIVrelated
conditions and AIDS were about 39 million from the beginning of the epidemic to 2015. The
united global efforts to fight the virus are considerably changing the indicators, such as mortality
and morbidity, but the challenges remain. The total number of people living with HIV in Bulgaria as
of 12th May, 2015, was 2,121. As of 30th November, 2016, the official data reported 2 460 people
living with HIV. As of 13th February, 2017, 2 487 individuals were HIV-seropositive. Approximately
60% of people with HIV are prone to developing cognitive impairment due to the infection.

Objective:

This study aimed to know the level of cognitive deficiency, in particular, the verbal and
semantic fluency of people living with HIV and AIDS

Methods:

In this study, a comparative analysis was carried out. The Stewart test was used to compare
the average independent samples. For clarity, the average values, the test statistics, and the estimated
significance levels are presented in the tables. Additionally, a statistical mechanism of factor
selection was used by the forward stepwise method. The Wilks' Lambda statistic reported values
between 0 and 1, with values close to zero indicating good discrimination of the model.

Results:

According to this research, the HIV positives participants generated fewer verbs than the
ones from the control group. The data were partially confirmed by the present study. There were
differences in terms of both adjectives and nouns among people living with HIV and AIDS.

Conclusion:

The study data proves that language deficits are detectable in neurocognitive testing of
HIV. The overall hypothesis of the study has been confirmed. The language impairments are primarily
qualitative and can be used as a marker for the initial and subsequent therapy assessment.
The Predictors of Hepatorenal Syndrome Development in HCV Cirrhotic
Ascitic Egyptian Patients with Spontaneous Bacterial Peritonitis
Authors: El Sharawy Shimaa Mahmoud , Elkadeem Mahmoud Zaki , Amer Ibrahim Fathi
Published: June 2023

Background & Aims:

Spontaneous bacterial peritonitis is considered a precipitating factor for renal impairment in patients with liver cirrhosis. No specific study addressing this problem has been reported. This study aimed to detect the incidence and predictive factors of hepatorenal syndrome in these patients.

Materials and Methods:

This study enrolled 121 hepatic cirrhotic patients with spontaneous bacterial peritonitis. History taking, clinical examination, and laboratory investigations includ-ing ascitic fluid analysis were carried out. Kidney function tests were repeated 3 days after the initiation of treatment. Patients were divided into 2 groups after one week of treatment during the follow-up period: Group I: patients without hepatorenal syndrome, and Group II: patients with hepatorenal syndrome. Multivariate analysis was performed to determine independent predictors of hepatorenal syndrome development.

Results:

A total of 30 patients (24.8%) developed hepatorenal syndrome. Patients with hepato-renal syndrome had significantly lower sodium and albumin levels as well as higher creatinine, bilirubin, Child-Turcotte-Pugh score, portal vein diameter, Model for End-Stage Liver Disease score. Higher percentage of them had a history of recurrent spontaneous bacterial peritonitis and multiple therapeutic paracentesis of ascites. Multivariate analysis detected that serum bili-rubin, Model for End-Stage Liver Disease-Sodium, and portal vein diameter were significant predictors of hepatorenal syndrome. Cutoff values were determined as 3.3 mg/dl for bilirubin, 15.9 mm for portal vein diameter, and 26 for Model for End-Stage Liver Disease-Sodium.

Conclusion:

Hepatorenal syndrome is a common complication of spontaneous bacterial peritonitis. In our study, high serum bilirubin, Model for End-Stage Liver Disease-Sodium, and portal vein diameter are predictors of the development of hepatorenal syndrome in patients with spontaneous bacterial peritonitis.
Reproductive and Biochemical Toxicity of Biobased Silver Nanoparticles against Toxocara vitulorum
Authors: Bahaaeldine Manar Ahmed , Garhy Manal El , Fahmy Sohair R. , Mohamed Ayman Saber
Published: June 2023

Background:

Toxocara vitulorum is a common parasitic worm of buffalo and cattle, causing livestock mortality and morbidity worldwide. Several countries suffered substantial eco-nomic losses due to animal death and reduced meat and milk production. Therefore, it became nec-essary to discover a new alternative drug, especially with the emerging resistance to current medica-tions. The present study aims to evaluate the in vitro anthelmintic effect of different concentrations of biobased silver nanoparticles on T. vitulorum adults.

Methods:

Different concentrations of silver nanoparticles were synthesised using lemon juice. Groups of male and female adult worms were incubated in 50, 100, and 200 mg/L silver nanoparti-cles for 48 h. The parasite motility, histology, and biochemical parameters were observed and com-pared to the control.

Results:

The results showed that silver nanoparticles decreased the worm motility, increased mor-tality rate, induced structural damage, caused collagen disruption, and showed elevated levels of as-partate aminotransferase, alanine aminotransferase, alkaline phosphatase, albumin, total protein, urea, and creatinine, as well as reduced levels of acetylcholinesterase, lactate dehydrogenase, uric acid, total cholesterol, triglycerides, and high-density lipoprotein in a dose-dependent manner.

Conclusion:

Silver nanoparticles established a significant anthelmintic effect against T. vitulorum and could become one of the up-and-coming antiparasitic drugs in the future.
Epidemiology and Perception of Acne Among Adolescents in Jos, Nigeria: Cross-Sectional School-Based Study
Authors: Adah Ruth , Yusufu Hope , Otene Queen-Amina Vivian
Published: June 2023

Background

Adolescents who make up a vast majority of the secondary school population are at a stage at which they are largely affected by acne. This condition, which is widely visible and easily recognized by peers, has numerous misperceptions surrounding it, which may influence attitudes toward people affected by it. There is a paucity of information on the prevalence of acne and how adolescents in Jos, Nigeria, view the condition.

Objective

This study aimed to determine the prevalence of acne, perceived risk factors, and the accuracy of self-report among adolescents in Jos, Nigeria. The study also sought to understand perceptions surrounding acne in this age group.

Methods

This descriptive cross-sectional study was conducted among adolescents attending private and public secondary schools in Jos, Nigeria. In total, 482 students were recruited through a multistaged stratified random sampling method. A self-administered semistructured questionnaire was used to collect information on history of acne, perceptions of causes, and the attitude toward those who have the condition. All participants were examined for the presence of acne. Univariate, bivariate, and multivariate analysis were conducted using SPSS (version 26; IBM Corp).

Results

The self-reported prevalence of acne was 44% and that upon clinical examination was 55%. Self-report showed a moderate degree of agreement with clinical diagnosis (Cohen κ=57.3%; P<.001). Predictive factors for the presence of acne in general were age of ≥15 years (odds ratio [OR] 1.79, 95% CI 1.12-2.87; P=.02), being in a private school (OR 2.17, 95% CI 1.38-3.42; P=.001), and being in a senior secondary class (OR 2.14, 95% CI 1.32-3.47; P=.002). The female gender (OR 3.03, 95% CI 1.64-5.61; P=.001) and religion (OR 3.24, 95% CI 1.27-8.24; P=.02) were predictive for acne only among adolescents aged <15 years, while a positive family history was predictive in those aged ≥15 years (OR 2.04, 95% CI 1.15-3.61; P=.02). A distinct perception and attitude pattern surrounding acne was observed, as a significant proportion (84/131, 64.1% vs 47/131, 35.9%; P=.02) of those who related acne to a biological phenomenon had acne themselves; however, the belief that acne is caused by skin lightening practices was significantly more common in those without acne (19/28, 67.9%) than in those with acne (9/28, 32.1%; P=.01). One-fourth of the adolescents (n=122, 25.3%) had no idea of the possible causes of acne.

Conclusions

Though acne is a prevalent skin condition among Nigerian adolescents, many misperceptions and unfavorable attitudes surround acne and persons affected by the condition. Our findings have revealed the need to work with the school health program to educate the general adolescent population about acne, to refer and manage teenagers with acne.
Staying Home, Tweeting Hope: Mixed Methods Study of Twitter Sentiment Geographical Index During US Stay-At-Home Orders
Authors: Xia Xinming , Zhang Yi , Jiang Wenting , Wu Connor Yuhao
Published: June 2023

Background

Stay-at-home orders were one of the controversial interventions to curb the spread of COVID-19 in the United States. The stay-at-home orders, implemented in 51 states and territories between March 7 and June 30, 2020, impacted the lives of individuals and communities and accelerated the heavy usage of web-based social networking sites. Twitter sentiment analysis can provide valuable insight into public health emergency response measures and allow for better formulation and timing of future public health measures to be released in response to future public health emergencies.

Objective

This study evaluated how stay-at-home orders affect Twitter sentiment in the United States. Furthermore, this study aimed to understand the feedback on stay-at-home orders from groups with different circumstances and backgrounds. In addition, we particularly focused on vulnerable groups, including older people groups with underlying medical conditions, small and medium enterprises, and low-income groups.

Methods

We constructed a multiperiod difference-in-differences regression model based on the Twitter sentiment geographical index quantified from 7.4 billion geo-tagged tweets data to analyze the dynamics of sentiment feedback on stay-at-home orders across the United States. In addition, we used moderated effects analysis to assess differential feedback from vulnerable groups.

Results

We combed through the implementation of stay-at-home orders, Twitter sentiment geographical index, and the number of confirmed cases and deaths in 51 US states and territories. We identified trend changes in public sentiment before and after the stay-at-home orders. Regression results showed that stay-at-home orders generated a positive response, contributing to a recovery in Twitter sentiment. However, vulnerable groups faced greater shocks and hardships during the COVID-19 pandemic. In addition, economic and demographic characteristics had a significant moderating effect.

Conclusions

This study showed a clear positive shift in public opinion about COVID-19, with this positive impact occurring primarily after stay-at-home orders. However, this positive sentiment is time-limited, with 14 days later allowing people to be more influenced by the status quo and trends, so feedback on the stay-at-home orders is no longer positively significant. In particular, negative sentiment is more likely to be generated in states with a large proportion of vulnerable groups, and the policy plays a limited role. The pandemic hit older people, those with underlying diseases, and small and medium enterprises directly but hurt states with cross-cutting economic situations and more complex demographics over time. Based on large-scale Twitter data, this sociological perspective allows us to monitor the evolution of public opinion more directly, assess the impact of social events on public opinion, and understand the heterogeneity in the face of pandemic shocks.
Artificial Intelligence–Driven Respiratory Distress Syndrome Prediction for Very Low Birth Weight Infants: Korean Multicenter Prospective Cohort Study
Authors: Jang Woocheol , Choi Yong Sung , Kim Ji Yoo , Yon Dong Keon , Lee Young Joo , Chung Sung-Hoon , Kim Chae Young , Yeo Seung Geun , Lee Jinseok
Published: June 2023

Background

Respiratory distress syndrome (RDS) is a disease that commonly affects premature infants whose lungs are not fully developed. RDS results from a lack of surfactant in the lungs. The more premature the infant is, the greater is the likelihood of having RDS. However, even though not all premature infants have RDS, preemptive treatment with artificial pulmonary surfactant is administered in most cases.

Objective

We aimed to develop an artificial intelligence model to predict RDS in premature infants to avoid unnecessary treatment.

Methods

In this study, 13,087 very low birth weight infants who were newborns weighing less than 1500 grams were assessed in 76 hospitals of the Korean Neonatal Network. To predict RDS in very low birth weight infants, we used basic infant information, maternity history, pregnancy/birth process, family history, resuscitation procedure, and test results at birth such as blood gas analysis and Apgar score. The prediction performances of 7 different machine learning models were compared, and a 5-layer deep neural network was proposed in order to enhance the prediction performance from the selected features. An ensemble approach combining multiple models from the 5-fold cross-validation was subsequently developed.

Results

Our proposed ensemble 5-layer deep neural network consisting of the top 20 features provided high sensitivity (83.03%), specificity (87.50%), accuracy (84.07%), balanced accuracy (85.26%), and area under the curve (0.9187). Based on the model that we developed, a public web application that enables easy access for the prediction of RDS in premature infants was deployed.

Conclusions

Our artificial intelligence model may be useful for preparations for neonatal resuscitation, particularly in cases involving the delivery of very low birth weight infants, as it can aid in predicting the likelihood of RDS and inform decisions regarding the administration of surfactant.
Teledermatology During Military Conflicts (Preprint)
Authors: Popovych Hanna
Published: June 2023

BACKGROUND

 Telehealth, in particular teledermatology, has become an accepted way to offer necessary consultations and follow-ups, and, most importantly, to triage patients for medical intervention based on urgency.

OBJECTIVE

 The objective of our study was to assess the success of a teledermatology initiative for the civilian population during a military conflict.

METHODS

Over 10 months (March 2022 to December 2022), 320 patients were consulted using: (1) store and forward teledermatology, which involves transferring images and clinical information to the dermatologist for review asynchronously; and (2) live interactive teledermatology, usually video conferencing, which allows real-time interaction between the doctor and the patient. The entire project was implemented by dermatologists based in and sponsored by the Euroderm Clinic located in Kiev, Ukraine.

RESULTS

A total of 320 patients participated. Of the civilian population consulted and managed by dermatologists via the telehealth initiative, the majority of patients (n=208, 65%) were female (mean age 37 years). Males accounted for 35% (n=112) of the sample (mean age 59 years). There were 80 consults involving pediatric patients aged 1 to 16 years, which comprised 25% of all consultations. Preliminary analysis showed that 70% (n=224) of patients experienced an acute exacerbation of chronic skin diseases and skin infections (psoriasis: n=80, 25%; eczema: n=48, 15%; seborrheic dermatitis: n=16, 5%; skin infections: n=32, 10%; skin fungal infections: n=26, 8%; acne: n=22, 7%); 20% (n=64) had skin neoplasms, including benign and malignant ones (melanoma: n=6, 2%; seborrheic keratoma: n=13, 4%; nevus: n=32, 10%; basal cell carcinoma: n=10, 3%; squamous cell carcinoma: n=3, 1%); and 10% (n=32) had skin alterations due to trauma, burns, and postsurgical treatment.

CONCLUSIONS

Teledermatology aims to provide systematic dermatological services to the most vulnerable people—women, children, and older adults—during military conflicts. According to our study, the majority of diagnoses made using teledermatology were confirmed (n=288, 90%) after an in-person examination. The correct diagnosis was hampered by factors such as poor image quality and periodic lack of internet connection.
Implementation of Teledermatology for Veterans in the United States (Preprint)
Authors: Oh Dennis
Published: June 2023

UNSTRUCTURED

The US Department of Veterans Affairs (VA) has adopted teledermatology, predominantly asynchronous, as an important strategy for improving access to expert skin care for its 9 million enrolled veteran patients. Despite the measurable success of its teledermatology program, one-fifth of all points of care have yet to implement teledermatology. The application of implementation science approaches offers the opportunity to systematically understand the VA’s teledermatology experience to yield insights into and lessons for implementing teledermatology widely as well as locally. Implementation frameworks and theories include the use of the Organizational Readiness for Change instrument as a prognosticator for implementation success, as well as the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework to assess the longitudinal implementation of a teledermatology initiative for rural veterans. Development and implementation of novel technological innovations that introduce new teledermatology workflows into mature teledermatology environments were analyzed during the COVID-19 pandemic.
Impact of COVID-19 on the paediatric primary care model in Catalonia: analysis of changes in the number and type of face-to-face and remote visits (Preprint)
Authors: Castillo Rodenas Marta , Vicente Gómez José Ángel , Fuster Casanovas Aïna , Miró Catalina Queralt , Vidal-Alaball Josep , López Seguí Francesc
Published: June 2023

BACKGROUND

The outbreak of COVID-19 has turned the care model of health systems around the world upside down. The healthcare crisis has led to opportunities for digital health to deliver quality care and the system has been redirected towards telemedicine. In Catalonia (Spain), as of March 2020, the pattern of visits in paediatric primary care consultations changed, such that face-to-face visits decreased in favour of non-face-to-face visits.

OBJECTIVE

To analyse variations in the types of visits in the field of paediatrics in primary care centres in Catalonia before and after the onset of COVID-19.

METHODS

Descriptive observational study based on administrative data. The number and type of visits to primary care paediatrics in Catalonia during the time interval between January 2019 and December 2022 were studied.

RESULTS

A drop of more than 80% in face-to-face visits and an increase of up to fifteen times in remote visits was observed as of March 2020 compared to the previous year. Subsequently, the face-to-face attendance rate began to recover, although it did not reach the same rate as before COVID-19. Non-face-to-face visits were maintained, representing more than 20% of the total after more than two years of the pandemic.

CONCLUSIONS

COVID-19 has been the trigger for a transition in the types of visits to primary care paediatric services. It has meant a paradigm shift from the essentially face-to-face care model to the permanent incorporation of digital health in daily paediatric activity.

CLINICALTRIAL

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Ảnh hưởng của phân trùn quế đến sinh trưởng và năng suất cây đậu cove lùn (Phaseolus vulgaris L.) trong điều kiện tưới nước nhiễm mặn
Authors: Trần Hiếu Hiền , Tất Anh Thư , Lê Vĩnh Thúc
Published: June 2023

Nghiên cứu được tiến hành nhằm xác định ảnh hưởng của các mức độ mặn (0, 1, 2 và 3‰) đến khả năng sinh trưởng, sinh lý của cây đậu cove giai đoạn cây con và ảnh hưởng của liều lượng phân trùn quế (0, 10, 20 và 30 tấn/ha) đến sự sinh trưởng, năng suất và chất lượng đậu cove lùn trong điều kiện tưới mặn nhân tạo giai đoạn ra hoa. Kết quả thí nghiệm ghi nhận cây đậu cove giai đoạn cây con sinh trưởng tốt ở mức độ mặn 2‰ và độ mặn 3‰ làm ảnh hưởng đến sự phát triển chiều cao cây, chiều dài rễ, sinh khối cây và sinh khối rễ. Tưới mặn 3‰ giai đoạn ra hoa làm giảm chất lượng trái, giảm 18,2% năng suất so với không tưới mặn. Bón 30 tấn/ha phân trùn quế làm tăng năng suất 14,6% so với nghiệm thức chỉ bón phân NPK. Kết quả ghi nhận năng suất đậu cove lùn bón 20 tấn và 30 tấn/ha phân trùn quế khác biệt không có ý nghĩa thống kê (p>0,05). Vì vậy, sử dụng liều lượng 20 tấn/ha phân trùn quế cho cây đậu cove giúp tiết kiệm chi phí trong sản xuất.
Dye-Sensitized Solar Cell Photoelectrochemical Tandem System Performance Study: TiO2 Nanotube/N719, BiVO4/TiO2 Nanotube, Ti3+/TiO2 Nanotube for Nitrogen Reduction Reaction to Ammonia
Authors: Suharyadi Suharyadi , Syauqi Muhammad Iqbal , Amelia Prita , Yunita Yunita , Gunlazuardi Jarnuzi
Published: June 2023

Ammonia is commonly synthesized through the Haber-Bosch process, which produces large amounts of CO2 emissions as it is carried out at extreme temperatures and pressures. An alternative technology is needed to synthesize ammonia which consumes less energy and is environmentally friendly. In this research, a Dye-Sensitized Solar Cell Photoelectrochemical tandem system (DSSC-PEC) was developed for the nitrogen reduction reaction (NRR) into ammonia. PEC cells utilized BiVO4/TiO2 Nanotube (BiVO4/TiO2NT) as a photoanode for water oxidation. BiVO4/TiO2NT was synthesized by the successive ionic layer adsorption and reaction (SILAR) with the cycles variation of 10, 15, and 20 cycles. The optimization method for 20 cycles (20s) gave the highest photocurrent of 0.352 mA/cm2. As a cathode where the nitrogen reduction reaction to ammonia takes place, Ti3+/TiO2NT was used. DSSC based on TiO2NT/N719 with an efficiency of 1.13% was used as an energy booster in the reaction. Using this system with an electrodes area of 3 cm2, under visible light irradiation on photoanode and DSSC while dark at the cathode, the rate of ammonia production, analyzed using the phenate method was 0.022 µmol.h−1.cm−2 with solar to chemical conversion (SCC) efficiency of 0.003%.
Synthesis of Hydroxyapatite-Polyethylene Glycol with In-Situ Method Using Calcium Oxide from Blood Shells (Anadara granosa)
Authors: Jamarun Novesar , Trycahyani Nabiila Ayyu , Arief Syukri , Septiani Upita , Sisca Vivi
Published: June 2023

Hydroxyapatite (Ca10(PO4)6(OH)2, HAp) is a calcium phosphate-based biomaterial that is widely used in bone implants due to its similarity in composition with the constituent elements of bone. However, HAp still has poor mechanical properties, so research was carried out to improve the mechanical properties such as reduced brittleness, less fracture resistance, and a denser structure of HAp by synthesizing composites with PEG. This study used PEG as a filler and HAp as a matrix. HAp was synthesized from blood clam shells (Anadara granosa) using the sol-gel method. HAp-PEG composite was synthesized using the in-situ method with various HAp concentrations of 40, 50, 60, 70, and 80%. FTIR characterization showed the presence of functional groups PO43− and CO23−, which indicated the presence of HAp. Analysis of the XRD pattern showed a crystal size of 24.194 nm. SEM-EDX showed the needle-shaped HAp-PEG composite HAp crystal morphology and obtained a Ca/P ratio of 1.87. Analysis of DTA results showed a weight loss of 65.72% in the composite at a temperature > 200 °C. A degradation test was also carried out to see the percentage of the HAp-PEG composite to be degraded, and the optimum degraded composite with increasing days had a concentration of 70%.
Synthesis of Co(ll), Ni(ll), Cu(ll), Pd(ll), and Pt(lV) Complexes with 14,15,34,35-Tetrahydro-11H, 31H-4,8-diaza-1,3(3,4)-ditriazola-2,6(1,4)-dibenzenacyclooctaphane-4,7-dien-15,35-dithione, and the Thermal Stability of Polyvinyl Chloride Modified Complexes
Authors: Al-Khazraji Ali Mudher Abdulkareem
Published: June 2023

In the current endeavor, a new Schiff base of 14,15,34,35-tetrahydro-11H,31H-4,8-diaza-1,3(3,4)-ditriazola-2,6(1,4)-dibenzenacyclooctaphane-4,7-dien-15,35-dithione was synthesized. The new symmetrical Schiff base (Q) was employed as a ligand to produce new complexes comprising Co(II), Ni(II), Cu(II), Pd(II), and Pt(II) metal-ions at a ratio of 2:1 (Metal:ligand). There have been new ligands and their complexes validated by (FTIR), (UV-visible), 1H-NMR, 13C-NMR, CHNS, and FAA spectroscopy, Thermogravimetric analysis (TG), Molar conductivity, and Magnetic susceptibility. The photostabilization technique to enhance the polymer was also used. The ligand Q and its complexes were mixed in 0.5% w/w of polyvinyl chloride in tetrahydrofuran (THF). The photo stabilization of polymer films was studied at 25 °C under irradiation of light λ 380–250 nm with intensity of 7.75 × 10−9 ein dm−3 s−1. The photostabilization activity of these compounds was determined by monitoring the hydroxyl, carbonyl, and polyene indexes, weight loss method with irradiation time. The ICO, IPO and IOH index values increased with irradiation time, this increase depends on the type of additives. The surface morphology for these films was studied during irradiation time. This project is highly intriguing for the ecosystem in regards to the decrease in the consumption of plastic.
Pengaruh Perubahan Tegangan Masukan Terhadap Efisiensi Energi Kompor Induksi
Authors: Budi Sudiarto  , Justinus Dipo Nugroho  , Faiz Husnayain  , Agus R. Utomo  , I Made Ardita
Published: June 2023

Efisiensi dalam penggunaan energi merupakan langkah penting dalam menciptakan ketahanan energi bangsa. Ketergantungan pasokan energi dengan tingkat impor yang tinggi dapat menyebabkan suatu negara lebih mudah mengalami krisis dan ketergantungan. Hal ini juga termasuk dalam penyediaan sumber energi untuk kebutuhan memasak. Kompor induksi listrik merupakan salah satu alternatif kompor selain kompor gas liquefied petroleum gas (LPG) yang digunakan untuk memasak. Dengan kondisi subsidi impor pemerintah yang tinggi untuk pengadaan LPG, diversifikasi sumber energi dalam kebutuhan memasak perlu dilakukan. Memasak dengan kompor induksi lebih efisien daripada memasak dengan kompor gas karena waktu memasak yang lebih singkat dan energi panas yang terbuang lebih sedikit. Efisiensi energi kompor induksi berada pada kisaran 80% atau dua kali lebih tinggi dibandingkan dengan kompor gas, yakni pada angka 40%. Namun, tingkat efisiensi energi kompor induksi dapat dipengaruhi, salah satunya, oleh tegangan suplai listrik. Dengan kondisi kelistrikan di Indonesia yang memiliki tingkat mutu pelayanan tegangan 220 V ± 10%, efisiensi energi pada kompor induksi dapat berbeda-beda. Penelitian ini menganalisis pengaruh variasi tegangan masukan terhadap efisiensi energi pada kompor induksi. Tegangan masukan divariasikan dari 230 V hingga 200 V dengan perbedaan 10 V menggunakan empat merek kompor induksi. Dari hasil pengujian, dapat diketahui bahwa efisiensi berbanding lurus dengan tegangan masukan. Makin tinggi tegangan masukan, makin tinggi pula efisiensi energi kompor induksi.
House Price Prediction Using Machine Learning
Authors: Patel Deepanshu , Nayak Parmeshwar , Gupta Shubham , C Jayanth
Published: June 2023

Abstract: Forecasting the appropriate house pricing for real estate customers while taking into consideration their priorities and financial situation is the goal. By examining previous market patterns, price ranges, and approaching changes, future prices may be predicted. Research indicates that house price discrepancies are a common source of concern for both homeowners and the real estate industry. Several interrelated factors influence the price at which real estate sells in places like Bengaluru. The size, location as well as and amenities of the property are significant considerations that could have an impact on the price. The analysis' findings supported the use of boosting algorithms like Extreme Gradient Boost Regression (XG Boost), Support Vector Regression, Multiple Linear Regression (Least Squares), and Machine Learning Lasso and Ridge regression models among other regression techniques in modelling explorations
Brain Tumor Diagnosis Using CNN and Image Processing
Authors: Khochare Gaurav G. , Khopade Shantanu S. , Khinde Pratik N. , Khobragade Sachi D. , Khopade Sampada R.
Published: June 2023

Abstract: Among the most tedious and time-consuming tasks in medical image processing is brain tumor identification and segmentation. Magnetic resonance imaging, or MRI, is a medical procedure that radiologists primarily utilize to examine the human body without having to do surgery. The substantial information that MRI provides on human soft tissue aids in the diagnosis of brain tumors. It is crucial to accurately segment MRI images in order to detect a brain tumour utilizing computeraided clinical techniques. Brain tumor identification facilitates determining the precise size and location of the tumor. Initially, the scanned image's quality is upgraded, and tumors are located in the image using morphological operators
Formulation and Evaluation of Herbal Gargle against Throat Irritation, Inflammation and Infection
Authors: Das Soumalya , Chowdhury Tathagata , Alam Sk. Mahbub , Das Koushik , Chakraborty Soumallya , Bhattacharya Somenath , Roy Dr. Amitava , Bhattacharjee Dr. Arin
Published: June 2023

Abstract: Herbal gargles have gained significant attention as potential alternatives to conventional oral care products due to their perceived natural composition and reported therapeutic benefits. This review aims to provide a comprehensive overview of the efficacy of herbal gargles in promoting oral health and preventing various oral ailments. Our oral cavity is a sweet able place to grow different types of bacterial species either harmless or harmful for human. From ancient age medicinal plants are considered as a store room of different types of biological activity in Ayurveda, Unani and Siddha, and have important role to cleanse tooth and prevent different human pathogens are responsible for unpleasant odour, inflammation of teeth root, dental plaque. The study evaluates a wide range of herbal ingredients commonly found in mouth gargles, including essential oils, plant extracts, and traditional herbal remedies. It explores their antimicrobial properties, antioxidant activity, and potential for reducing plaque formation, gingivitis, and bad breath. Aqueous extract of Tulsi, Turmeric, Clove, Fennel, Betel leaves, Pudina, Ginger, Liquorice shows effective antimicrobial, antifungal activity, anti-inflammatory and anti-plaque properties. In this research work herbal gargle was evaluated depends on various parameter like color, pH, Phase separation , Homogeneity and antibacterial properties. Herbal gargles show potential as adjuncts to conventional oral care, Herbal gargle is suitable for any age group due to less side effect. Healthcare professionals and consumers should approach herbal gargles with caution, taking into consideration individual oral health needs and consulting oral healthcare providers for personalized recommendations.
IOT Based Health Monitoring System
Authors: Chauhan Sarita
Published: June 2023

Abstract: In India, close to regarding two hundredth of the whole population loses their lives because of interrupted health observance system i.e., in most of the hospitals, doctor visits patients either in morning shift or in evening shift or in each shift. What happens if patient's health becomes important in between that interval or once a doctor isn't on the market with a patient. the solution is a patient could lose her\his life. thus, to avoid this important situation; we tend to area unit proposing a sensible embedded system device that monitors patients’ health ceaselessly. This project introduces the structure and usage of an IoT based patient observing framework, utilizing different sensors and NodeMCU as the MCU (Master Control Unit). The framework can be utilized to constantly screen the wellbeing parameters of a patient. ECG Monitoring with AD8232 ECG Sensor and MAX30102 BPM sensor is used forsensing temperature and heartbeat rate can be measured from anyplace on the globe utilizing IoT (Internet of Things). IoT is executed, utilizing an ESP-8266, which enables the data to be transmitted flawlessly over the web and mobile app
Comportamiento de variables económicas y de indicadores de comercio del mango mexicano.
Authors: Zavala Martínez José Mabel , Caamal Cauich Ignacio , Pat Fernández Verna Gricel
Published: June 2023

Los mayores productores de mango son India, Indonesia, China, México y Pakistán. Mientras que, los exportadores más importantes son México, Tailandia, Holanda, Brasil y Perú. México es el cuarto productor y primer exportador mundial de mango; y sus principales socios en el comercio del mango son Estados Unidos de América, Canadá y Japón. El objetivo del trabajo fue caracterizar el comportamiento de las variables económicas y de los indicadores de comercio del mango producido en México. La metodología aplicada consistió en los cálculos de las tasas de crecimiento de las variables y de los indicadores de comercio, con la finalidad de conocer el comportamiento de la competitividad del comercio del mango mexicano. Las tasas de crecimiento de las variables producción, exportación, comercio total y balanza comercial fueron mayores que cero, reflejando expansión de la producción y comercio; así mismo, los coeficientes balanza comercial relativa, índice de transabilidad, índice de grado de apertura exportadora y coeficiente de exportación tuvieron valores mayores que cero, los cuales manifiestan competitividad de las exportaciones; mientras que las importaciones representaron alrededor de 0.1% del consumo nacional y el índice de dependencia comercial estuvo en alrededor de cero, señalando poca dependencia del consumo nacional de las importaciones. Las tasas de crecimiento positivas de las variables y los coeficientes positivos de los índices de comercio reflejan que la producción y exportación de mango está en expansión y es competitiva.
SENTIR-MUNDO: VIVÊNCIAS DE CRIANÇAS NO LIMIAR DO YOUTUBE
Authors: Camargo Costa Aliana França , Casagrande Ana Lara
Published: June 2023

Este artigo tem como objeto de estudo a relação das crianças com a mídia digital YouTube. Assim, indica relatos ligados à temática, proferidos por crianças de 7 a 10 anos, coletados em um momento pré-pandemia Covid-19. Inicialmente são tecidas considerações sobre infância, autocomunicação de massa e YouTube, posteriormente são apresentados aspectos centrais das entrevistas, bem como abordado o conceito Perezhivanie (vivência), de Vigotski, para chegar à problematização: pensar a educação neste tempo em que a conexão com a mídia YouTube está intensa na infância. Os relatos são dados derivados de pesquisa de doutorado em Educação. É utilizada a netnografia expandida, considerando as informações disponíveis no espaço organizado da escola e desterritorializado da internet. Os resultados indicam que as crianças reconhecem o aprendizado com o YouTube, mas também evidenciam a importância da mediação docente na aprendizagem na escola, instituição perpassada pela cultura digital.
Pedro Henríquez Ureña, entre los archivos históricos y la Biblioteca Americana. Hacia la fundación de un archivo continental
Authors: Marín Osorio William
Published: June 2023

Este proyecto de investigación titulado “Pedro Henríquez Ureña, entre los archivos históricos y la Biblioteca Americana. Hacia la fundación de un archivo continental”, focaliza documentos hallados en los archivos históricos del Fondo de Cultura Económica de México, El Colegio de México, la Universidad Nacional Autónoma de México, la Universidad de Harvard, la Universidad de Minnesota, la Universidad de Columbia, Estados Unidos, y el Colegio Nacional Rafael Hernández adscrito a la Universidad Nacional de La Plata, el Instituto de Filología “Dr. Amado Alonso”, el Instituto de Literatura Hispanoamericana que dirige el Dr. Noé Jitrik, Universidad de Buenos Aires, el Instituto Superior del Profesorado “Dr. Joaquín V. González”, Buenos Aires, Argentina, y continúa con el papel del dominicano como editor de libros y fundador de la Biblioteca Americana. Al final de la investigación se presentan dos tipos de referencias bibliográficas, aquellas halladas en bibliotecas y archivos históricos, y aquellas localizadas en repositorios institucionales en diferentes sitios en la red que denominamos Webgrafías. Hacia la fundación de una biblioteca digital continental, un capítulo de la investigación que da cuenta de páginas especializadas, bases de datos y sitios de reconocimiento internacional donde están alojados los mejores testimonios del legado intelectual sobre la utopía del escritor dominicano. En este punto queremos destacar que la Biblioteca Americana que proyectó Henríquez Ureña antes de morir y que continuara su hermana Camila, el proyecto de utopía para transformar a la sociedad de América Latina desde la ética de la lectura y la educación -“dar el alfabeto a todos los hombres”-, fue el impulso de un intelectual quien con su genio logró dar continuidad a la gran lectura del libro americano que, como señala Liliana Weinberg, fue un sueño que no logró ver Henríquez Ureña cristalizado en vida, pero al que se le quiso dar forma en esta biblioteca digital que ha sido organizada como homenaje al maestro dominicano y que quiere ser un legado para las siguientes generaciones.
A universal tool for marine metazoan species identification -- Towards best practices in proteomic fingerprinting
Authors: Rossel Sven , Peters Janna , Charzinski Nele , Eichsteller Angelina , Laakmann Silke , Neumann Hermann , Martinez Pedro
Published: June 2023

Proteomic fingerprinting using MALDI-TOF mass spectrometry is a
well-established tool for identifying microorganisms and has shown
promising results for identification of animal species, particularly
disease vectors and marine organisms. And thus can be a vital tool for
biodiversity assessments in ecological studies. However, few studies
have tested species identification across different orders and classes.
In this study, we collected data from 1,246 specimens and 198 species to
test species identification in a diverse dataset. We also evaluated
different specimen preparation and data processing approaches for
machine learning and developed a workflow to optimize classification
using random forest. Our results showed high success rates of over 90%,
but we also found that the size of the reference library affects
classification error. Additionally, we demonstrated the ability of the
method to differentiate marine cryptic-species complexes and to
distinguish sexes within species.
Intraspecific trait variation of Phragmites australis is driven by temperature rather than soil properties.
Authors: Xu Zhichao , Liu Huamin , Wen Lu , Zhang Jinghui , Xin Xiaoyun , Hu Jinpeng , Kou Xin , Liu Dongwei , Yi zhuo , Wang Lixin
Published: June 2023

Widespread species of Phragmites australis has a high degree of
intraspecific variation in functional traits along external climatic and
environmental gradients. However, the underlying mechanisms of the
environmental gradient at regional scale on intraspecific variation and
adaptation strategies of species functional traits are still not well
understood. The leaf, stem and root traits of P. australis in lakeshore
wetlands of semi-arid and arid regions in the Inner Mongolia Plateau
were measured to reveal the variability of functional traits at regional
scales and the influencing factors, and to reveal the ecological
adaptation strategies of P. australis in different regions through plant
economic spectrum. The results showed that variation of functional
traits of P. australis had a significant latitudinal pattern.
Temperature determined the intraspecific variation of the functional
traits of P. australis, and the influence of soil properties was small.
Plant economic spectrum theory was also applicable to the functional
traits of various organs and whole plants of P. australis, and different
ecological adaptation strategies were confirmed across arid and
semi-arid regions. This study provides a new understanding of
intraspecific variation of functional traits of P. australis originates
from temperature-mediated climatic differences brought about by sampling
geographic locations, rather than the soil properties of the sampling
locations and the joint of climate and soil. The utilization and
assimilation of resources of P. australis were conservative in arid
regions, while in semi-arid regions it was an acquisition strategy.
Assessing the impacts of recreation on habitat use by mammals in an isolated alpine protected area
Authors: Fennell Mitchell , Ford Adam , Martin Tara , Burton Cole
Published: June 2023

The management objectives of many protected areas must meet the dual
mandates of protecting biodiversity while providing recreational
opportunities. Balancing these mandates is made difficult by constraints
on monitoring trends in the status of biodiversity and impacts of
recreation. Using detections from 45 camera traps deployed between July
2019 and September 2021, we assessed the potential impacts of recreation
on spatial and temporal habitat use for 8 medium- and large-bodied
terrestrial mammals in an isolated alpine protected area: Cathedral
Provincial Park, Canada. We hypothesized that some wildlife perceive a
level of threat from people, such that they avoid ‘risky times’ or
‘risky places’ associated with human activity. Other species may benefit
from associating with people, be it through access to anthropogenic
resource subsidies or filtering of competitors/predators that are more
human-averse (i.e., human shield hypothesis). Specifically, we predicted
that large carnivores would show the greatest segregation from people
while mesocarnivores and ungulates would associate spatially with
people. We found spatial co-occurrence between ungulates and recreation,
consistent with the human shield hypothesis, but did not see the
predicted negative relationship between larger carnivores and humans,
except for coyotes (Canis latrans). Temporally, all species other than
cougars (Puma concolor) had activity patterns significantly different
from that of recreationists, suggesting potential displacement in the
temporal niche. Wolves (Canis lupus) and mountain goats (Oreamnos
americanus) showed shifts in temporal activity away from people on
recreation trails relative to off-trail areas, providing further
evidence of potential displacement. Our results highlight the importance
of monitoring spatial and temporal interactions between recreation
activities and wildlife communities, in order to ensure the
effectiveness of protected areas in an era of increasing human impacts.
Water-controlled ecosystems as complex networks: Evaluation of network-based approaches to quantify patterns of connectivity
Authors: Tiwari Shubham , Brizuela Sonia Recinos , Hein Thomas , Turnbull Laura , Wainwright John , Funk Andrea
Published: June 2023

This study provides a new perspective on understanding the intricacies
of water-mediated connectivity in ecosystems, bridging landscape ecology
and geomorphology through network science. We highlight dryland and
river floodplain ecosystems as distinct examples of contrasting
water-controlled systems. We (1) discuss central considerations in
developing Structural Connectivity (SC) and Functional Connectivity (FC)
networks of water-mediated connectivity; (2) quantify the emergent
patterns in these networks; and (3) evaluate the capacity of network
science tools for investigating connectivity characteristics.
Connectivity is quantified using seven parameters at both network and
node levels. We find that Link Density, Betweenness Centrality, and Page
Rank Centrality are highly sensitive to directionality; Global
Efficiency and Degree Centrality are particularly sensitive to weights;
while Relative Node Efficiency remains unaffected by weights and
directions. Our study underscores the potential to transform how we
quantify and understand water-mediated connectivity, especially in
consideration of the role(s) of weights and directionality. This
interdisciplinary review has implications for both theoretical insights
and practical applications in environmental management and conservation
efforts.