cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hybrid sorbent-ultrafiltration systems for fluoride removal from water
Creators: name: İme Akanyeti
name: Maria-Chiara Ferrari
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Fluoride contaminated water sources are found in many parts of the world and the consumption of such water is causing dental and skeletal fluorosis in humans, especially in developing countries. Hybrid sorbent-ultrafiltration (UF) systems are proposed for the removal of fluoride from water for the first time in this study. Laterite and bone char were selected as they are low cost, accessible sorbents in developing countries. The performances of the laterite-UF and bone char-UF systems were compared in terms of fluoride removal and membrane permeability under varying fluoride concentration, solution pH, and sorbent load. For equilibrium fluoride concentration of 1.5 mg/L, the World Health Organization guideline for safe drinking water, the sorption capacity of bone char (1.1 mg/g) was larger than that of laterite (0.40 mg/g) and this was attributed to the larger surface area of bone char. For the laterite-UF system, increase in fluoride concentration resulted in a decline in UF permeability whereas for the bone char-UF system there was no influence of fluoride concentration on membrane permeability. The optimal solution pH at which the systems are operated at maximum sorption capacity while avoiding membrane fouling was determined as pH 5-6 for the laterite-UF and pH 7 for the bone char-UF system. For both systems, the permeability declined in a similar manner as the sorbent load increased. Although both systems require further optimization, they showed to be viable defluoridation technologies.
Constrained Maximum Likelihood Estimation for Model Calibration Using Summary-Level Information From External Big Data Sources
Creators: name: Nilanjan Chatterjee
name: Yi-Hau Chen
name: Maas, Paige
name: Carroll, Raymond J.
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Information from various public and private data sources of extremely large sample sizes are now increasingly available for research purposes. Statistical methods are needed for using information from such big data sources while analyzing data from individual studies that may collect more detailed information required for addressing specific hypotheses of interest. In this article, we consider the problem of building regression models based on individual-level data from an “internal” study while using summary-level information, such as information on parameters for reduced models, from an “external” big data source. We identify a set of very general constraints that link internal and external models. These constraints are used to develop a framework for semiparametric maximum likelihood inference that allows the distribution of covariates to be estimated using either the internal sample or an external reference sample. We develop extensions for handling complex stratified sampling designs, such as case-control sampling, for the internal study. Asymptotic theory and variance estimators are developed for each case. We use simulation studies and a real data application to assess the performance of the proposed methods in contrast to the generalized regression calibration methodology that is popular in the sample survey literature. Supplementary materials for this article are available online.
Impacts of Environmental Colloids on the Transport of 17 β-estradiol in Intact Soil Cores
Creators: name: Prater, Jacob R.
name: Horton, Robert
name: Thompson, Michael L.
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Estrogens such as 17-β estradiol (E2) are endocrine-disrupting compounds and can affect the reproductive systems of aquatic organisms. Therefore, it is important to understand the mechanisms of their transport in the environment. E2 and its daughter product estrone (E1) are both strongly adsorbed by soil organic matter and have relatively short half-lives. Reduced contact time with soil makes transport of E2 and E1 in soil more likely. In this study, intact soil cores from three soils representing a range of particle size distribution, structure, and organic matter content were used to compare the transport of E2 with and without the presence of colloidal material fractionated from soil or swine manure. In chemical transport experiments conducted with undisturbed soil columns, E2 and E1 were measured both in solution and attached to suspended solids in column effluent. During the transport experiments, colloids carrying E2 passed through all soils, with the exception of the sandy soil. The presence of colloids decreased the first detection time of E2 in the aqueous phase, was correlated with greater peak E2 concentrations in the effluent of both loamy and clayey soils, but not through the sandy soil, and increased mass fractions of the E2 that was transported.
Supplementary Methods and Figures from Rapid diversification of vascular architecture underlies the Carboniferous fern radiation
Creators: name: Suissa, Jacob S.
name: Friedman, William E.
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Plant Biology

description: Vascular plants account for 93% of Earth's terrestrial flora. Xylem and phloem, vital for transporting water and nutrients through the plant, unite this diverse clade. Three-dimensional arrangements of these tissues (vascular architecture) are manifold across living and extinct species. However, the evolutionary processes underlying this variation remain elusive. Using ferns, a diverse clade with multiple radiations over their ca 400-million-year history, we synthesized data across 3339 species to explore the tempo and mode of vascular evolution and to contextualize dynamics of phenotypic innovation during major fern diversification events. Our results reveal three paradigm shifts in our understanding of fern vascular evolution. (i) The canonical theory on the stepwise and unidirectional evolution of vascular architecture does not capture the complexities of character evolution among ferns. Rather, a new model permitting additional transitions, rate heterogeneity and multiple reversions is more likely. (ii) Major shifts in vascular architecture correspond to developmental changes in body size, not regional water availability. (iii) The early Carboniferous radiation of crown-group ferns was characterized by an explosion of phenotypic innovation. By contrast, during the Cretaceous and Cenozoic rise of eupolypods, rates of vascular evolution were dramatically low and seemingly decoupled from lineage diversification.
Supplementary document for Strain-concentration for Fast, Compact Photonic Modulation and Non-volatile Memory - 7221472.pdf
Creators: name: Wen, Yanan
name: Heim, David
name: Zimmermann, Matthew
name: Shugayev, Roman
name: Dong, Mark
name: Leenheer, Andrew
name: Gilbert, Gerald
name: Eichenfield, Matt
name: Heuck, Mikkel
name: Englund, Dirk
Publisher: name: Optica Publishing Group
Year: 2024
Subjects: Uncategorized

description: Supplementary Information
Constrained Maximum Likelihood Estimation for Model Calibration Using Summary-Level Information From External Big Data Sources
Creators: name: Nilanjan Chatterjee
name: Yi-Hau Chen
name: Maas, Paige
name: Carroll, Raymond J.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Information from various public and private data sources of extremely large sample sizes are now increasingly available for research purposes. Statistical methods are needed for using information from such big data sources while analyzing data from individual studies that may collect more detailed information required for addressing specific hypotheses of interest. In this article, we consider the problem of building regression models based on individual-level data from an “internal” study while using summary-level information, such as information on parameters for reduced models, from an “external” big data source. We identify a set of very general constraints that link internal and external models. These constraints are used to develop a framework for semiparametric maximum likelihood inference that allows the distribution of covariates to be estimated using either the internal sample or an external reference sample. We develop extensions for handling complex stratified sampling designs, such as case-control sampling, for the internal study. Asymptotic theory and variance estimators are developed for each case. We use simulation studies and a real data application to assess the performance of the proposed methods in contrast to the generalized regression calibration methodology that is popular in the sample survey literature. Supplementary materials for this article are available online.
Castel di Sangro-Scontrone field camp – structural and applied geomorphology
Creators: name: Miccadei, Enrico
name: Piacentini, Tommaso
name: Schipani, Ileana
name: Tucci, Francesca
name: Antoniani, Federica
name: Caporali, Lorenza
name: Carducci, Andrea
name: Cerone, Davide
name: Cerritelli, Francesca
name: D'Amico, Antimo
name: Angelis, Chiara De
name: Filippis, Rino De
name: Santis, Antonio De
name: Matteo, Andrea Di
name: Nicola, Daniela Di
name: Pietro, Ilaria Di
name: D'Intino, Nico
name: Febo, Simone
name: Giuliani, Letizia
name: Iezzi, Francesco
name: Imperatore, Rocco
name: Ninniri, Francesco
name: Pinti, Adriano
name: Russo, Giovanni Luca
name: Scialpi, Stefano
name: Valentini, Alessandro
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Science Policy
subject: Information and Computing Sciences
subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Physics

description: ABSTRACTThe Geomorphological Field Camp 2014 in the Castel di Sangro-Scontrone area is the result of geological and geomorphological teaching field work activities carried out in Central Italy by a group of 23 students attending the Structural Geomorphology and Applied Geomorphology courses (Master's Degree in Geological Science and Technology of the Università degli Studi ‘G. d'Annunzio’ Chieti-Pescara, Italy, Department of Engineering and Geology). The Field Camp 2014 was organized in May 2014, following regular classes held during the fall term. General activities for the field camp were developed over four main stages: (1) preliminary analysis of the regional geological and geomorphological setting of the area; (2) preliminary activities for the analysis of the local area (orography, hydrography and photogeology investigations, and geographical information system processing); (3) field work, focused on the analysis of a specific issue concerning structural geomorphology or applied geomorphology (e.g. landscape evolution, river channel change, landslide distribution, and flood hazard); and (4) post-field work production of the map. Finally, the fundamental role of field work in the analysis of landscape and in land management was outlined: indeed, the overall field camp enhanced the crucial role of field-based learning for young geomorphologists in order to acquire a strong sensitivity to geomorphological processes and landscape evolution.
Angiopoietin-2 May Be Involved in the Resistance to Bevacizumab in Recurrent Glioblastoma
Creators: name: Labussière, Marianne
name: Cheneau, Caroline
name: Prahst, Claudia
name: Pérez-Larraya, Jaime Gállego
name: Farina, Patrizia
name: Lombardi, Giuseppe
name: Mokhtari, Karima
name: Amithys Rahimian
name: Jean-Yves Delattre
name: Eichmann, Anne
name: Sanson, Marc
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Cell Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Despite encouraging response rate of bevacizumab (BVZ) in recurrent glioblastoma, many patients do not respond to this schedule and most of the responders develop an early relapse. Plasma concentrations of VEGF, PlGF, Ang2, and sTie2 were assessed by ELISA before and during BVZ treatment in seventy patients. Baseline levels of VEGF-A, and PlGF were higher in patients than in healthy volunteers, whereas no difference was found for Ang2, and sTie2. No biomarker at baseline was associated with response, PFS or OS. At recurrence, the authors observed an increase of Ang2 suggesting that Ang2/sTie2 could be involved in the resistance to BVZ.
Digital Health Experiences of Incarcerated Populations Using Telemedicine in North Carolina Prisons
Creators: name: Catlett, Terri
name: Zebrowski, Ashlyn
name: Edson, Barbara
name: Stabile, Kaitlyn
name: Bohlmann, Aaron
name: Lakdawala, Adnan
name: Yao, Yuxiao
name: Wallace, Erin
name: Khairat, Saif
Publisher: name: SAGE Publications
Year: 2022

description:
More than 1.2 million adults are incarcerated in the United States and hence, require health care from prison systems. The current delivery of care to incarcerated individualss is expensive, logistically challenging, risk fragmenting care, and pose security risks. The purpose of this study was to evaluate the association of patient characteristics and experiences with the perceived telemedicine experiences of incarcerated individuals during the pandemic. We conducted a cross-sectional study of incarcerated individuals in 55 North Carolina prison facilities seeking medical specialty care via telemedicine. Data collection took place from June 1, 2020 to November 30, 2020. Of the 482 patient surveys completed, 424 (88%) were male, 257 (53.3%) were over 50 years of age, and 225 (46.7%) were Black or African American and 195 (40.5%) were White, and 289 (60%) no prior telemedicine experience. There were 3 strong predictors of how patients rated their telemedicine experience: personal comfort with telemedicine (P-value < .001), wait time (P-value < .001), and the clarity of the treatment explanation by the provider (P-value < .001). There was a relationship between telemedicine experiences and how patient rated their experience. Also, patients who were less satisfied with using telemedicine indicated their preference for an in-clinic visit for their next appointment.
Impacts of Environmental Colloids on the Transport of 17 β-estradiol in Intact Soil Cores
Creators: name: Prater, Jacob R.
name: Horton, Robert
name: Thompson, Michael L.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Estrogens such as 17-β estradiol (E2) are endocrine-disrupting compounds and can affect the reproductive systems of aquatic organisms. Therefore, it is important to understand the mechanisms of their transport in the environment. E2 and its daughter product estrone (E1) are both strongly adsorbed by soil organic matter and have relatively short half-lives. Reduced contact time with soil makes transport of E2 and E1 in soil more likely. In this study, intact soil cores from three soils representing a range of particle size distribution, structure, and organic matter content were used to compare the transport of E2 with and without the presence of colloidal material fractionated from soil or swine manure. In chemical transport experiments conducted with undisturbed soil columns, E2 and E1 were measured both in solution and attached to suspended solids in column effluent. During the transport experiments, colloids carrying E2 passed through all soils, with the exception of the sandy soil. The presence of colloids decreased the first detection time of E2 in the aqueous phase, was correlated with greater peak E2 concentrations in the effluent of both loamy and clayey soils, but not through the sandy soil, and increased mass fractions of the E2 that was transported.
Agricultural company and agricultural holding towards climate and agricultural policy changes (4)
Creators: name: Abramczuk, Łukasz
name: Augustyńska, Irena
name: Bębenista, Arkadiusz
name: Józwiak, Wojciech
name: Mirkowska, Zofia
name: Skarżyńska, Aldona
name: Zieliński, Marek
name: Ziętara, Wojciech
name: Żekało, Marcin
name: Józwiak, Wojciech (Ed.)
name: Abramczuk, Łukasz
name: Augustyńska, Irena
name: Bębenista, Arkadiusz
name: Józwiak, Wojciech
name: Mirkowska, Zofia
name: Skarżyńska, Aldona
name: Zieliński, Marek
name: Ziętara, Wojciech
name: Żekało, Marcin
name: Józwiak, Wojciech (Ed.)
Publisher: name: Unknown
Year: 2018
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Crop Production/Industries
subject: agricultural product
subject: agricultural company
subject: agricultural holding
subject: agriculture
subject: climate change
subject: farm
subject: gross margin
subject: labour productivity
subject: large agricultural holding
subject: large holding
subject: Natura 2000 area
subject: pig holding

description: It is the fourth out of five publications devoted to functioning of agricultural enterprises and farms under conditions of changes in climate and the anticipated change in agricultural policy which is expected to take place in 2021 and beyond – its performance in the next several years. Chapters: Climate change and its effects. Large agricultural holdings and labour productivity in polish agriculture and in other selected EU countries in 2016. Impact of Natura 2000 areas on the functioning of farms. A comparison of pig holdings in Poland and in the selected EU countries. Gross margin of selected agricultural products in 2017 – regional perspective.
Constrained Maximum Likelihood Estimation for Model Calibration Using Summary-level Information from External Big Data Sources
Creators: name: Nilanjan Chatterjee
name: Yi-Hau Chen
name: Carroll, Raymond J.
name: Maas, Paige
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Science Policy
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Mathematics
subject: FOS: Mathematics
subject: Biological Sciences
subject: Earth and Environmental Sciences
subject: Biotechnology
subject: Genetics
subject: FOS: Biological sciences

description: Information from various public and private data sources of extremely large sample sizes are now increasingly available for research purposes. Statistical methods are needed for utilizing information from such big data sources while analyzing data from individual studies that may collect more detailed information required for addressing specific hypotheses of interest. In this article, we consider the problem of building regression models based on individual-level data from an “internal” study while utilizing summary-level information, such as information on parameters for reduced models, from an “external” big data source. We identify a set of very general constraints that link internal and external models. These constraints are used to develop a framework for semiparametric maximum likelihood inference that allows the distribution of covariates to be estimated using either the internal sample or an external reference sample. We develop extensions for handling complex stratified sampling designs, such as case-control sampling, for the internal study. Asymptotic theory and variance estimators are developed for each case. We use simulation studies and a real data application to assess the performance of the proposed methods in contrast to the generalized regression (GR) calibration methodology that is popular in the sample survey literature.
Evidence for autophagy-dependent pathways of rRNA turnover in Arabidopsis
Creators: name: Floyd, Brice E
name: Morriss, Stephanie C
name: MacIntosh, Gustavo C
name: Bassham, Diane C
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Evolutionary Biology
subject: Plant Biology

description: Ribosomes account for a majority of the cell's RNA and much of its protein and represent a significant investment of cellular resources. The turnover and degradation of ribosomes has been proposed to play a role in homeostasis and during stress conditions. Mechanisms for the turnover of rRNA and ribosomal proteins have not been fully elucidated. We show here that the RNS2 ribonuclease and autophagy participate in RNA turnover in Arabidopsis thaliana under normal growth conditions. An increase in autophagosome formation was seen in an rns2–2 mutant, and this increase was dependent on the core autophagy genes ATG9 and ATG5. Autophagosomes and autophagic bodies in rns2–2 mutants contain RNA and ribosomes, suggesting that autophagy is activated as an attempt to compensate for loss of rRNA degradation. Total RNA accumulates in rns2–2, atg9–4, atg5–1, rns2–2 atg9–4, and rns2–2 atg5–1 mutants, suggesting a parallel role for autophagy and RNS2 in RNA turnover. rRNA accumulates in the vacuole in rns2–2 mutants. Vacuolar accumulation of rRNA was blocked by disrupting autophagy via an rns2–2 atg5–1 double mutant but not by an rns2–2 atg9–4 double mutant, indicating that ATG5 and ATG9 function differently in this process. Our results suggest that autophagy and RNS2 are both involved in homeostatic degradation of rRNA in the vacuole.
Supplementary Analyses from Human adults prefer to cooperate even when it is costly
Creators: name: Curioni, Arianna
name: Voinov, Pavel
name: Allritz, Mathias
name: Wolf, Thomas
name: Call, Josep
name: Knoblich, Günther
Publisher: name: The Royal Society
Year: 2022
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology
subject: 60801 Animal Behaviour

description: Joint actions are cooperative activities where humans coordinate their actions to achieve individual and shared goals. While the motivation to engage in joint action is clear when a goal cannot be achieved by individuals alone, we asked whether humans are motivated to act together even when acting together is not necessary and implies incurring additional costs compared to individual goal achievement. Using a utility-based empirical approach, we investigated the extent of humans' preference for joint action over individual action, when the instrumental costs of performing joint actions outweigh the benefits. The results of five experiments showed that human adults have a stable preference for joint action, even if individual action is more effective to achieve a certain goal. We propose that such preferences can be understood as ascribing additional reward value to performing actions together.
Experience of complementary and alternative medicine in patients with amyotrophic lateral sclerosis and their families: A qualitative study
Creators: name: Sungha Kim
name: Chung, Seung Eun
name: Sanghun Lee
name: Jeonghwan Park
name: Sunmi Choi
name: Sungchul Kim
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy

description: The purpose of this study was to explore the life experience related to complementary and alternative medicine (CAM) use among patients with amyotrophic lateral sclerosis (ALS). Data were collected though semi-structured interviews of nine patients with ALS and seven family members, who have used CAM. Audio recordings of the interviews were transcribed verbatim and checked for accuracy. The Giorgi’s method of phenomenology was used for data analysis. Five constituents forming the units of meaning were: facing the limits of conventional medicine; getting to know CAM; recognizing the ineffectiveness of CAM; using CAM for symptomatic treatment; and seeking new CAM endlessly for complete cure. The study results provide an in-depth understanding of experience with CAM among patients with ALS and their family members. Healthcare providers must give accurate information about the efficacy of CAM as well as its safety and possible adverse effects and should offer patient-centred treatment through active communication throughout the process of diagnosis and treatment.
Evidence for autophagy-dependent pathways of rRNA turnover in Arabidopsis
Creators: name: Floyd, Brice E
name: Morriss, Stephanie C
name: MacIntosh, Gustavo C
name: Bassham, Diane C
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Molecular Biology
subject: Physiology
subject: Evolutionary Biology
subject: Plant Biology

description: Ribosomes account for a majority of the cell's RNA and much of its protein and represent a significant investment of cellular resources. The turnover and degradation of ribosomes has been proposed to play a role in homeostasis and during stress conditions. Mechanisms for the turnover of rRNA and ribosomal proteins have not been fully elucidated. We show here that the RNS2 ribonuclease and autophagy participate in RNA turnover in Arabidopsis thaliana under normal growth conditions. An increase in autophagosome formation was seen in an rns2–2 mutant, and this increase was dependent on the core autophagy genes ATG9 and ATG5. Autophagosomes and autophagic bodies in rns2–2 mutants contain RNA and ribosomes, suggesting that autophagy is activated as an attempt to compensate for loss of rRNA degradation. Total RNA accumulates in rns2–2, atg9–4, atg5–1, rns2–2 atg9–4, and rns2–2 atg5–1 mutants, suggesting a parallel role for autophagy and RNS2 in RNA turnover. rRNA accumulates in the vacuole in rns2–2 mutants. Vacuolar accumulation of rRNA was blocked by disrupting autophagy via an rns2–2 atg5–1 double mutant but not by an rns2–2 atg9–4 double mutant, indicating that ATG5 and ATG9 function differently in this process. Our results suggest that autophagy and RNS2 are both involved in homeostatic degradation of rRNA in the vacuole.
Impacts of environmental colloids on the transport of 17 β-estradiol in intact soil cores
Creators: name: Prater, Jacob R.
name: Horton, Robert
name: Thompson, Michael L.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biological Sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Chemistry
subject: Earth and Environmental Sciences
subject: Medicine
subject: Biochemistry

description: ABSTRACTEstrogens such as 17-β estradiol (E2) are endocrine-disrupting compounds and can affect the reproductive systems of aquatic organisms. Therefore, it is important to understand the mechanisms of their transport in the environment. E2 and its daughter product estrone (E1) are both strongly adsorbed by soil organic matter and have relatively short half-lives. Reduced contact time with soil make transport of E2 and E1 in soil more likely. In this study, intact soil cores from three soils representing a range of particle size distribution, structure, and organic matter content were used to compare the transport of E2 with and without the presence of colloidal material fractionated from soil or swine manure. In chemical transport experiments conducted with undisturbed soil columns, E2 and E1 were measured both in solution and attached to suspended solids in column effluent. During the transport experiments, colloids passed through, carrying E2, all soils with the exception of the sandy soil. The presence of colloids decreased the first detection time of E2 in the aqueous phase, was correlated with greater peak E2 concentrations in the effluent of both loamy and clayey soils, but not through the sandy soil, and increased mass fractions of the E2 that was transported.
Pyrrolizidine alkaloids from Solenanthus lanatus DC. with acetylcholinesterase inhibitory activity
Creators: name: Houari Benamar
name: Tomassini, Lamberto
name: Venditti, Alessandro
name: Abderrazak Marouf
name: Bennaceur, Malika
name: Nicoletti, Marcello
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 60506 Virology

description: The whole plant ethanolic extract of Solenanthus lanatus was used for the isolation of acetylcholinesterase inhibitors. A new pyrrolizidine alkaloid, 7-O-angeloylechinatine N-oxide, 1, was isolated together with three known compounds of the same class (3′-O-acetylheliosupine N-oxide, 2, heliosupine N-oxide, 3, and heliosupine, 4), by bioassay-guided approach. Their structures were elucidated by spectroscopic methods. All the isolated compounds showed inhibition activity against the AChE, with IC50 0.53–0.60 mM.
Lipid nanoparticles and their polytherapeutic activity with polymyxin B against multidrug-resistant Gram-negative bacteria
Creators: name: LAI, XIANGFENG
Publisher: name: Monash University
Year: 2022
Subjects: subject: 100703 Nanobiotechnology
subject: FOS: Nanotechnology
subject: 90301 Biomaterials
subject: FOS: Medical engineering
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Throughout history, bacterial infections, such as pneumonia, wound infections and sepsis, have been responsible for several major disease epidemics. The introduction of antibiotics to treat bacterial infections has greatly reduced deaths from bacterial diseases. However, due to the misuse and overuse of the antibiotics around the world, bacteria become stronger to be able to resist the actions of antibiotics. To save more lives from the catastrophic bacterial infection, my research therefore focuses on developing new antimicrobials that do not induce resistance, as well as investigating their killing mechanisms against antibiotic resistant bacteria.
Two novel prenylated kaempferol derivatives from fresh bud’s fur of Platanus acerifolia and their anti-proliferative activities
Creators: name: Zuo, Bo
name: Liao, Zhi-Xin
name: Xu, Chen
name: Liu, Chao
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Plant Biology

description: Two novel prenylated kaempferol derivatives (1, 2), together with seven known metabolites were isolated from ethanol extract of fresh Platanus acerifolia bud’s fur by multistep chromatographic processing. Structure of compounds 1 and 2 was confirmed by 1D, 2D NMR spectra and HR-ESI-MS. In addition, compound 1 was further analysed by X-ray crystallography. Anti-proliferative activities in vitro against human breast carcinoma (MCF-7) and human hepatocellular carcinoma (Hep-G2) cell lines for compound 1, 2 and 8 were evaluated. Compound 1 exhibited cytotoxic activity towards MCF-7 and Hep-G2 cell lines with the IC50 values 38.2 and 39.5 μM, respectively. Moreover, compound 2 showed weak cytotoxic activities against the two cell lines.
Gliederung erstellen
Creators: name: Grahl, Tina
Publisher: name: Zenodo
Year: 2022

description: Das Handout informiert über die folgenden Inhalte formaler Aufbau einer wissenschaftlichen Arbeit inhaltlicher Aufbau (Gliederung) notwendige Vorarbeiten zur Gliederung (Fragestellung, Zielsetzung, etc.) Vorgehen beim konkreten Gliedern einer Arbeit
Two novel prenylated kaempferol derivatives from fresh bud’s fur of Platanus acerifolia and their anti-proliferative activities
Creators: name: Zuo, Bo
name: Liao, Zhi-Xin
name: Xu, Chen
name: Liu, Chao
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Plant Biology

description: Two novel prenylated kaempferol derivatives (1, 2), together with seven known metabolites were isolated from ethanol extract of fresh Platanus acerifolia bud’s fur by multistep chromatographic processing. Structure of compounds 1 and 2 was confirmed by 1D, 2D NMR spectra and HR-ESI-MS. In addition, compound 1 was further analysed by X-ray crystallography. Anti-proliferative activities in vitro against human breast carcinoma (MCF-7) and human hepatocellular carcinoma (Hep-G2) cell lines for compound 1, 2 and 8 were evaluated. Compound 1 exhibited cytotoxic activity towards MCF-7 and Hep-G2 cell lines with the IC50 values 38.2 and 39.5 μM, respectively. Moreover, compound 2 showed weak cytotoxic activities against the two cell lines.
Variable impact of rice (Oryza sativa) on soil metal reduction and availability of pore water Fe2+ and Mn2+ throughout the growth period
Creators: name: K. M. Shamsul Haque
name: Eberbach, Philip L.
name: Weston, Leslie A.
name: Dyall-Smith, Mike
name: Howitt, Julia A.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 60506 Virology

description: Flooding of wetland or agricultural soils can result in substantial alteration of the pore water trace metal profiles and potentially also influence the bioavailability of other trace elements adsorbed to the insoluble oxides. Experimental microcosms were used to quantify the impact of rice (Oryza sativa) plants across an entire growing cycle on the concentrations of Mn2+ and Fe2+ in two soil types (red sodosol and grey vertosol). Two water management treatments were included: a standard flooded treatment and a saturated treatment (−3 kPa). Soil pore water profiles were established from samples collected at four sampling depths (2.5, 7.5, 15 and 25 cm) on 50 occasions. Fe2+ and Mn2+ concentrations were higher in flooded soil than in saturated soil and greatest at a depth of 7.5 cm. The presence of rice plants increased Mn2+ concentrations in flooded soils, but tended to decrease Mn2+ concentrations in saturated soils. The influence of rice plants on Fe2+ concentrations was greatest at a depth of 7.5 cm. Changes in soil pore water Fe2+ and Mn2+ concentrations due to the presence of rice plants were correlated with flowering and reproduction.
Supramolecular polymer networks based on calix[5]arene chained poly(p-phenyleneethynylene) and C60 fulleropyrrolidine
Creators: name: Fraix, Aurore
name: Torrisi, Vanna
name: Marletta, Giovanni
name: Sortino, Salvatore
name: Mineo, Placido G.
name: Tomaselli, Gaetano A.
name: Ballistreri, Francesco P.
name: Sfrazzetto, Giuseppe Trusso
name: Pappalardo, Andrea
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: A poly(p-phenyleneethynylene) polymer (PCF[5]), bearing two π-rich cone-like calix[5]arene cavities (assembling cores) attached to a rigid p-phenyleneethynylene spacer, was synthesised by a Pd-catalysed cross-coupling reaction. UV–vis absorption and fluorescence spectroscopies combined with dynamic light scattering measurements provide evidence for the self-assembly of PCF[5] (homopolytopic host molecule) with a complementary C60 fulleropyrrolidine (C60-Pyr) guest in solution, in the construction of a supramolecular polymer network. Atomic force microscopy analysis of PCF[5]/C60-Pyr highlights the formation of a bicontinuous network consisting of a uniform distribution of prominent structures, within a polymeric background forming a biphasic structure.
New adduct of abietane-type diterpene from Salvia leriifolia Benth.
Creators: name: Hussain, Amjad
name: Achyut Adhikari
name: M. Iqbal Choudhary
name: Ayatollahi, Syed Abdulmajid
name: Atta-Ur-Rahman
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified

description: A new adduct of abietane-type diterpene, salvialeriicone (1), was isolated from Salvia leriifolia Benth., along with a new chemical entity nor-abietane diterpene, 2-isopropyl-8,8-dimethyl-7,8-dihydrophenanthrene-1,4,5(6H)-trione (2). Their structures were determined using mass spectrometry, and 1D- and 2D-NMR spectroscopy. Salvialeriicone: A new compound from Salvia leriifolia Benth.
Natural products such as adhesives in oil paintings
Creators: name: Russo, Mario Vincenzo
name: Avino, Pasquale
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy

description: The study and analysis of the materials employed in artistic paintings provide deeper knowledge about the history of the work of art, including restoration efforts made in the past, and the development of painting techniques through the centuries. Gas chromatography coupled to mass spectrometry is the main analytical technique employed, as it proved to be the most suitable technique for the analysis of complex mixtures, thanks to its combination of sensitivity, wide range of applicability and versatility. Further, μFT-IR technique has also been employed to get a preliminary screening of the samples taken from paintings. In this paper, the analytical protocol based on these two techniques has been applied for analysing natural terpenic resins; its performance has been tested on microsamples collected from paintings of valuable artistic interest.
Synthesis and disproof of the structure proposed for the tetrahydrofuranol isolated from Michelia compressa var. lanyuensis (Magnoliaceae)
Creators: name: Yang, Yong-Qing
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: The previously proposed structure for a tetrahydrofuranol isolated from the leaves of Michelia compressa var. lanyuensis (Magnoliaceae) was synthesised in an enantiopure form using diethyl D-tartarate as the starting material. The synthetic sample showed spectroscopic data incompatible with those for the natural product and thus unequivocally disproved the previously assigned structure.
Involvement of β adrenergic receptors in spasmolytic effect of caulerpine on guinea pig ileum
Creators: name: Luiz Henrique Agra Cavalcante-Silva
name: Correia, Ana Carolina De Carvalho
name: Jéssica Celestino Ferreira Sousa
name: Barbosa-Filho, José Maria
name: Santos, Bárbara Viviana De Oliveira
name: Miranda, George Emmanuel C. De
name: Alexandre-Moreira, Magna Suzana
name: Cavalcante, Fabiana De Andrade
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Computational Biology

description: Previously, we demonstrated that caulerpine has spasmolytic effect on guinea pig ileum. The aim of this study was to investigate pathways of its spasmolytic action. We test caulerpine against phasic contractions induced by carbachol in the circular layer of guinea pig ileum and this alkaloid did not inhibit these contractions, indicating that caulerpine did not interfering with the mobilisation of Ca2+ from intracellular stores. Additionally, the spasmolytic effect of caulerpine did not involve K+ channels. Furthermore, we observed that α2-adrenergic receptors were not involved in the spasmolytic effect of caulerpine, since the relaxation curve induced by caulerpine was not shifted in the presence of yohimbine (α2-adrenergic antagonist). However, in the presence of propranolol (β-adrenergic antagonist), the relaxation curve induced by caulerpine was right-shifted, resulting in a fivefold increase in EC50. Thus, a possible mechanism for the spasmolytic action of caulerpine is the activation of β-adrenergic receptors.
Cytotoxicity of an unprecedented brominated oleanolide and a new furoceramide from the Cameroonian spice, Echinops giganteus
Creators: name: Sandjo, Louis P.
name: Kuete, Victor
name: Siwe, Xavier N.
name: Herve M. P. Poumale
name: Efferth, Thomas
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer

description: A preliminary study on Echinops giganteus (Asteraceae) showed that the methanolic extract has interesting cytotoxicities against a panel of cancer cell lines. From this extract, a lignan, a flavonoid and a polyacetylenic thiophene identified were three times less cytotoxic than the extract. In the search of the metabolites responsible for the bioactivity, a new harvested E. giganteus was subjected to a phytochemical study using chromatographic methods. In the course of the work, two new compounds: a brominated oleanolide (1) and a tetrahydrofurano-ceramide (2) were obtained along with β-amyrin acetate (3), 2-(penta-1,3-diynyl)-5-(4-hydroxybut-1-ynyl)-thiophene (4), 2-(penta-1,3-diynyl)-5-(3,4-dihydroxybut-1-ynyl)-thiophene (5) and 4-hydroxy-2,6-di-(3′,4′-dimethoxyphenyl)-3,7-dioxabicyclo-(3.3.0)octane (6). Their structures were determined on the basis of NMR spectroscopy and mass spectrometry data in conjunction with those reported in the literature. The cytotoxicity of 1, 2 and 5 was evaluated by employing resazurin assay against a panel of cancer cell lines with IC50 values in range 6.12 ± 0.46–46.96 ± 3.61 μM.
Owariensisone: a new iridolactone from the whole plant of Brillantaisia owariensis P. Beauv
Creators: name: Perrin Lanversin Foning Tebou
name: Mabou, Florence Déclaire
name: Ngnokam, David
name: Harakat, Dominique
name: Voutquenne-Nazabadioko, Laurence
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biophysics
subject: Biochemistry
subject: Cell Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology
subject: 60506 Virology

description: From the whole plant of Brillantaisia owariensis P. Beauv, a new iridolactone, owariensisone (1) together with six known compounds (nepetin-7-O-glucoside, choline, sucrose, mannitol, xylitol, 1-O-palmitoyl-2-eicosanoyl-3-O-(6-amino-6-deoxy)-β-d-glucopyranosyl-glycerol) were isolated. Structures of these compounds were established by direct interpretation of their spectral data, mainly HR-TOFESIMS, 1-D NMR (1H and 13C) and 2-D NMR (1H-1H COSY, HSQC, HMBC, NOESY, TOCSY and DOCSY) and by comparison with the literature.
Visualisation of volcanic relief and processes: the Nízký Jeseník upland educational trail, Czech Republic
Creators: name: Miklín, Jan
name: Lenart, Jan
Publisher: name: Taylor & Francis
Year: 2015
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Pharmacology
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: The paper presents the visualisation of volcanic relief and processes that formed the landscape of the Nízký Jeseník Upland (today recognised as a national geopark) during different phases of the Cenozoic. There are three basic types of volcanic phenomena: (i) volcanoes, (ii) lava flows and changes of relief induced by them and (iii) tuffaceous sediments. These are presented by block diagrams, panoramic maps and cross-sections on 18 panels placed along a 25 km long education trail leading through the volcanic landscape. We used a combination of GIS and graphic software to produce block diagrams based on various published and unpublished information sources. The education trail transfers scientific knowledge to the general public in an effort to contribute to the educational objectives of the Jeseníky Geopark.