Negative / Null Result ReportOpen accessEnvironmental sciences
Sumardiono Siswo, Meganingtyas Wahyudita, Cahyono Heri · 2025 · E3S Web of Conferences
Artificial rice is one of the food diversification efforts that can be made from non-rice foodstuffs to reduce dependence on rice. In this study, artificial rice was made from a composite flour as raw material composed of modified cassava flour (mocaf) (Manihot esculenta), sago flour (Metroxylon sago Rottb), yellow pumpkin flour (Cucurbita moschata L.), and soybean flour (Glycine max) in different formula ratios. Artificial rice was produced using the extrusion method at temperatures of 70, 80, and 90°C. In this study, the artificial rice was analyzed for chemical and physical properties (wate
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Mohamed Rashed, Asmaa Khodari · 2022 · Aswan University Journal of Environmental Studies
TiO2 was synthesized from titanium tetraisopropoxide in the presence of H2O and H2O2 to form TiO2(H2O) and TiO2(H2O2) respectively. Thermo gravimetric analysis (TGA) was utilized to investigate the thermal stability and select proper calcination temperatures of the solid powders used to prepare the oxides. Accordingly, TiO2 was obtained by calcination at 550 and 750°C. These oxides were characterized by TEM, XRD, FTIR, XRF and UV-Vis spectroscopy. Results showed that TiO2(H2O2) is more thermally stable than TiO2(H2O) and its nanoparticles are smaller. TiO2(H2O2)(550) was doped with palladium t
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Chenjie Dong, Yuzheng Gu, Yinglan Jia et al. · 2023 · Environmental Research Communications
As the basic units of soil structure, soil aggregate is essential for maintaining soil stability. Intensified freeze–thaw cycles have deeply affected the size distribution and stability of aggregate under global warming. To date, it is still lacking about the effects of freeze–thaw cycles on aggregate in the permafrost regions of the Qinghai-Tibetan Plateau (QTP). Therefore, we investigated the effects of diurnal and seasonal freeze–thaw processes on soil aggregate. Our results showed that the durations of thawing and freezing periods in the 0–10 cm layer were longer than in the 10–20 cm layer
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Pakpahan Novriaman, Maryati Sri, Susanti Desi · 2023 · E3S Web of Conferences
The combination of oleogelators had potential to exploit synergistic effects that contributed to functionality of oleogel. Red palm oil provided high carotenoids which add nutrition to oleogel. This research is aimed to provide high carotenoids oleogel using oleogelators combinations. Stability, oil binding capacity, hardness, thermal profile and total carotenoid were observed to learn oleogelator effect. This study was designed using a factorial completely randomized design consisting of three factors, are concentrations of ethyl cellulose (Ec), monoglycerol stearate (Ms) and beeswax (Bw). Et
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Seyed Mohammad Ebrahimi, Zahra Nazari-Khorasgani, Heibatullah Kalantari et al. · 2021 · Journal of Advances in Environmental Health Research
Background: The purpose of this study was to determine the concentration levels of hippuric acid and 2, 3, 4- methyl hippuric acid isomers as biological indicators of exposure to toluene and xylene isomers in the urine of the gas stations workers of Ahvaz, Iran.Methods: The urine sample was taken the first time in January and the second time in June 2018. Eight gas stations were selected in Ahvaz, Khuzestan Province, Iran. The study sample was 24 males; three workers participated in the study from each gas station. Two workers in each gas station served as the exposed group, and one secretary
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Ashkan Talebi, Brent E. Sleep, Denis M. O'Carroll · 2023 · Water Resources Research
Abstract Mathematical models in engineering play an important role in understanding and predicting the behavior of a system. A mechanistic coupled liquid water, water vapor and heat transfer model incorporating kinetic phase change accounting for real‐time interfacial area between water and gas phases was developed to predict coupled subsurface processes and evaporation (drying) rates from bare soils. To enhance the model capability to predict evaporation rates, the air resistance associated with the viscous sublayer was implemented in energy and mass exchange across the soil‐air interface (th
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Habriantono Bakhroini, Wagiyana Wagiyana, Alfarisy Fariz Kustiawan · 2023 · E3S Web of Conferences
Root-knot nematodes (Meloidogyne spp.) are considered as one of the main limiting factors in crop production systems. Currently, several eco-friendly root-knot nematodes control technologies have been developed, one of which is biofumigants. The purpose of this study was to determine the effectiveness of biofumigants from Brassicaceae and Non-Brassicaceae to control root-knot nematodes. The study was conducted using a one-factor Completely Randomized Design (CRD) with 5 treatments. The results showed that the application of biofumigants from both brassicaceae and non-brassicaceae had no signif
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Abayneh Melaku, Tesfaye Admassu Abate, Argaw Ambelu · 2025 · Environmental Health Insights
Introduction: Hand hygiene is a cornerstone of infection prevention; however, the water and infrastructure used for handwashing can themselves become sources of microbial contamination. This study assessed the water quality and sanitary conditions of hand hygiene facilities in public and private hospitals in Addis Ababa, Ethiopia. Methods: A laboratory-based cross-sectional study was conducted from May to June 2025 in 10 hospitals. Forty samples were collected, including 20 tap water samples and 20 swab samples from tap handles. A sanitary survey evaluated water supply and hand hygiene station
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· 2009 · Assiut University Bulletin for Environmental Researches
ABSTRACT: Several reports have suggested that soluble salts nickel may affect on hematopoiesis and development. In this study female Wistar albino rats (180-300g) received NiCl2, 6H2 O, subcutaneously (25, 50 and 100 mg/kg body weight (b w) or in drinking water (20 mg/100 ml). Selenium (0.3 mg/kg b w, s.c.) was combined to NiCl2 (100 mg/kg b w, s.c.). Control groups received NaCl 0.9% (0.3 ml s.c) or drinking distilled water. All groups of rats were injected on day 4 of pregnancy in pre-implantation period. Haematological parameters were recorded on day 6 and 21 of pregnancy. Developmental par
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Bouziani Amina, Benkirane Hasnae, Idrissi Mohamed et al. · 2021 · E3S Web of Conferences
In addition to age, gender, body weight, hormonal status as well as certain physiological and pathological states, other factors exert considerable effects on calcium (Ca) retention and therefore on its urinary excretion. Among these other factors, many dietary nutrients have all been discussed as factors affecting urinary Ca through different studies. Thus, our study aims to evaluate the impact of various nutritional factors on urinary Ca excretion among a sample of Moroccan children and adolescents aged from 6 to 18 years old. A total of 133 Moroccan children and adolescents aged between 6 a
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El Sobky, Abeer, F, El Bokhary, M, AwadAllah, Hala, I et al. · 2018 · Journal of Environmental Science
This study was conducted to highlight the significant environmental factors that may have impacts on breast benign and malignant diseases. This study was carried out on one hundred females who came to radiology department to perform mammographic examination. A complete personal and family history of patients was taken, clinical examination was done, all cases were asked to fill a questionnaire about how often they deal with each item of the environmental factors including (alcohol, caffeine, smoking, use of some material that are commonly used in daily life and known to have estrogenic effect
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Fahrimal Yudha, Asmilia Nuzul, Aisyah Siti et al. · 2020 · E3S Web of Conferences
As one of the Local wisdom in Aceh, farmer prefers raising polled cow than horned cow for breeding purposes. They believe pole cow is more resilient in harsh conditions and reproductively better than the horned cow. The aim of this study was to evaluate blood profile and blood biochemistry of the aceh polled and horned cow. The blood profile examined includes erythrocyte value, erythrocyte indices MCV (Mean Corpuscular Volume), MCH (Mean Corpuscular Hemoglobin), MCHC (Mean Corpuscular Hemoglobin Concentration), thrombocyte, leukocyte, hematocrit, and hemoglobin, while blood biochemistry includ
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Dayong Zhao, Xinyi Cao, Jin Zeng et al. · 2017 · Journal of Freshwater Ecology
In order to investigate the effects of macrobenthos on the abundance and community composition of ammonia-oxidizing prokaryotes under different temperature conditions, laboratory microcosms containing two kinds of macrobenthos (Corbicula fluminea and Tubificid worms) were constructed. Real-time polymerase chain reaction (PCR) and clone libraries were applied to analyze the ammonia-oxidizing archaea (AOA) and bacteria (AOB) communities in the surface sediments. The lowest abundances of the archaeal and bacterial amoA gene were found in the samples cultured under 28 °C (archaeal amoA gene abunda
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Chandini Palakkunnel Kuttappan, Sasankan Prasanth Narayanan, Syamkumar Reghu Nandanan Pillai et al. · 2025 · Natural Built Social Environment Health
This study assessed the toxic effects of pesticide exposure on four earthworm species: Perionyx excavatus Perrier, 1872; Megascolex konkanensis Fedarb, 1898; Dichogaster affinis (Michaelsen, 1890); and Metaphire houlleti (Perrier, 1872). The organisms were exposed to pesticide-treated soil. Biomass reduction, immunotoxicity, and enzyme biomarkers were used as endpoints. Among the tested species, M. konkanensis, a native species, appeared more sensitive than the others. In biomass tests, chlorpyrifos showed no significant effect on final body mass (p > 0.05). P. excavatus showed a significant r
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