bluuebunny/crossref_metadata_2025 huggingface dataset:
Impact of Crocus sativus L. on Metabolic Profile in Patients with Diabetes Mellitus or Metabolic Syndrome: A Systematic Review
Authors: Giannoulaki Parthena , Kotzakioulafi Evangelia , Chourdakis Michail , Hatzitolios Apostolos , Didangelos Triantafyllos
Published: May 2020

Background: Experimental studies demonstrated a positive effect of administration of Crocus sativus L. (saffron) and its bioactive ingredients on metabolic profile through their antioxidant capacity. Purpose: To determine if the use of saffron in humans is beneficial to patients with diabetes mellitus (DM) or metabolic syndrome (MS). Methods: This systematic review includes 14 randomized control trials that investigated the impact of saffron administration and its bioactive ingredient crocin on the metabolic profile of patients with DM, MS, prediabetes, and coronary artery disease. We documented the following clinical outcomes: fasting blood glucose (FBG), glycated haemoglobin (HbA1c), total cholesterol, low-density lipoprotein (LDL) cholesterol, high-density lipoprotein (HDL) cholesterol, triglycerides, systolic, and diastolic blood pressure. Results: Eight studies examined the efficacy of saffron in patients with DM, four with the metabolic syndrome, one with prediabetes and one with coronary artery disease. A favorable effect on FBG was observed. The results regarding blood lipids and blood pressure were inconclusive in the current review. Conclusions: According to the available limited evidence, saffron may have a favorable effect on FBG. Many of the studies in the reviewed literature are of poor quality, and more research is needed in this direction to confirm and establish the above findings.
Probiotic NVP-1703 Alleviates Allergic Rhinitis by Inducing IL-10 Expression: A Four-week Clinical Trial
Authors: Kang Min-Gyu , Han Seung-Won , Kang Hye-Ryun , Hong Seok-Jin , Kim Dong-Hyun , Choi Jeong-Hee
Published: May 2020

Although several recent studies reported that probiotics might be beneficial for allergic rhinitis (AR), the effect of probiotics on AR is not consistent and have not been reproduced between studies. We aimed to determine the efficacy and safety of probiotic NVP-1703, a mixture of Bifidobacterium longum and Lactobacillus plantarum, in subjects with perennial AR. Adult subjects with perennial AR received either NVP-1703 (n = 47) or placebo (n = 48) for four weeks. Total nasal symptom scores (TNSS), rhinitis control assessment test (RCAT), blood eosinophil count, allergen-specific IgE, and immunological parameters in serum and urine were compared at baseline and after four weeks. TNSS changes from baseline at weeks 1, 3, and 4 were significant between the NVP-1703 and placebo groups (p = 0.033, 0.031, and 0.029, respectively). RCAT score showed significant differences between the NVP-1703 and placebo groups (p = 0.049) at week 4. Dermatophagoides farinae-specific IgE levels and serum IL-10 levels were significantly different between the NVP-1703 and placebo groups (p = 0.033 and p = 0.047, respectively). IL-10/IL-4 and IL-10/IL-13 ratios were different between the NVP-1703 and placebo groups at week 4 (p = 0.046 and 0.018, respectively). NVP-1703 treatment reduced urinary prostaglandin F2α and leukotriene E4 levels (p > 0.05). Therefore, NVP-1703 can be treatment option for perennial AR.
Effect of a Short Message Service Intervention on Excessive Gestational Weight Gain in a Low-Income Population: A Randomized Controlled Trial
Authors: Holmes Hannah , Palacios Cristina , Wu YanYan , Banna Jinan
Published: May 2020

Objectives: The objective of this trial was to investigate the effect of educational short message service (SMS), or text messages, on excessive gestational weight gain (GWG) in a low-income, predominantly overweight/obese population. Methods: Participants (n = 83) were mostly overweight/obese women recruited at Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) clinics on the island of O’ahu, Hawai’i at 15–20 weeks gestational age. The intervention group received SMS on nutrition and physical activity during pregnancy designed to help them meet Institute of Medicine (IOM) guidelines for GWG and American College of Obstetricians and Gynecologists guidelines for exercise, respectively. The control group received SMS about general health topics during pregnancy, excluding nutrition and physical activity. Both groups received one text message per week for eighteen weeks. GWG was defined as the difference between the last self-reported weight taken before delivery and participants’ self-reported weight before pregnancy. Differences between study groups were examined using t-tests and Chi-square tests. Linear regression models were used to examine association of GWG with study group and other factors. Results: GWG was similar (p = 0.58) in the control group (14.1 ± 11.4 kg) and the intervention group (15.5 ± 11.6 kg). The percentage of participants exceeding IOM guidelines for GWG was similar (p = 0.51) in the control group (50.0%, n = 17) and the intervention group (60.5%, n = 23). Conclusions: GWG was not significantly different between intervention and control groups. Trials that begin earlier in pregnancy or before pregnancy with longer intervention durations and varying message frequency as well as personalized or interactive messages may be needed to produce significant improvements.
Effects of Branched-Chain Amino Acid (BCAA) Supplementation on the Progression of Advanced Liver Disease: A Korean Nationwide, Multicenter, Prospective, Observational, Cohort Study
Authors: Park Jung Gil , Tak Won Young , Park Soo Young , Kweon Young Oh , Chung Woo Jin , Jang Byoung Kuk , Bae Si Hyun , Lee Heon Ju , Jang Jae Young , Suk Ki Tae , Oh Myung Jin , Heo Jeong , Woo Hyun Young , Jang Se Young , Lee Yu Rim , Lee June Sung , Kim Do Young , Kim Seok Hyun , Suh Jeong Ill , Kim In Hee , Kang Min Kyu , Lee Won Kee
Published: May 2020

Background and Aims: Clinical evidence for the benefits of branched-chain amino acids (BCAAs) is lacking in advanced liver disease. We evaluated the potential benefits of long-term oral BCAA supplementation in patients with advanced liver disease. Methods: Liver cirrhosis patients with Child–Pugh (CP) scores from 8 to 10 were prospectively recruited from 13 medical centers. Patients supplemented with 12.45 g of daily BCAA granules over 6 months, and patients consuming a regular diet were assigned to the BCAA and control groups, respectively. The effects of BCAA supplementation were evaluated using the model for end-stage liver disease (MELD) score, CP score, serum albumin, serum bilirubin, incidence of cirrhosis-related events, and event-free survival for 24 months. Results: A total of 124 patients was analyzed: 63 in the BCAA group and 61 in the control group. The MELD score (p = 0.009) and CP score (p = 0.011) significantly improved in the BCAA group compared to the control group over time. However, the levels of serum albumin and bilirubin in the BCAA group did not improve during the study period. The cumulative event-free survival was significantly improved in the BCAA group compared to the control group (HR = 0.389, 95% CI = 0.221–0.684, p < 0.001). Conclusion: Long-term supplementation with oral BCAAs can potentially improve liver function and reduce major complications of cirrhosis in patients with advanced liver disease.
Vitamin D Effects on the Immune System from Periconception through Pregnancy
Authors: Schröder-Heurich Bianca , Springer Clara Juliane Pacifica , von Versen-Höynck Frauke
Published: May 2020

Vitamin D is a well-known secosteroid and guardian of bone health and calcium homeostasis. Studies on its role in immunomodulatory functions have expanded its field in recent years. In addition to its impact on human physiology, vitamin D influences the differentiation and proliferation of immune system modulators, interleukin expression and antimicrobial responses. Furthermore, it has been shown that vitamin D is synthesized in female reproductive tissues and, by modulating the immune system, affects the periconception period and reproductive outcomes. B cells, T cells, macrophages and dendritic cells can all synthesize active vitamin D and are involved in processes which occur from fertilization, implantation and maintenance of pregnancy. Components of vitamin D synthesis are expressed in the ovary, decidua, endometrium and placenta. An inadequate vitamin D level has been associated with recurrent implantation failure and pregnancy loss and is associated with pregnancy-related disorders like preeclampsia. This paper reviews the most important data on immunomodulatory vitamin D effects in relation to the immune system from periconception to pregnancy and provides an insight into the possible consequences of vitamin D deficiency before and during pregnancy.
Connecting the Dots Between Inflammatory Bowel Disease and Metabolic Syndrome: A Focus on Gut-Derived Metabolites
Authors: Verdugo-Meza Andrea , Ye Jiayu , Dadlani Hansika , Ghosh Sanjoy , Gibson Deanna L.
Published: May 2020

The role of the microbiome in health and disease has gained considerable attention and shed light on the etiology of complex diseases like inflammatory bowel disease (IBD) and metabolic syndrome (MetS). Since the microorganisms inhabiting the gut can confer either protective or harmful signals, understanding the functional network between the gut microbes and the host provides a comprehensive picture of health and disease status. In IBD, disruption of the gut barrier enhances microbe infiltration into the submucosae, which enhances the probability that gut-derived metabolites are translocated from the gut to the liver and pancreas. Considering inflammation and the gut microbiome can trigger intestinal barrier dysfunction, risk factors of metabolic diseases such as insulin resistance may have common roots with IBD. In this review, we focus on the overlap between IBD and MetS, and we explore the role of common metabolites in each disease in an attempt to connect a common origin, the gut microbiome and derived metabolites that affect the gut, liver and pancreas.
Inhibition of Asaia in Adult Mosquitoes Causes Male-Specific Mortality and Diverse Transcriptome Changes
Authors: Mancini Maria Vittoria , Damiani Claudia , Short Sarah M. , Cappelli Alessia , Ulissi Ulisse , Capone Aida , Serrao Aurelio , Rossi Paolo , Amici Augusto , Kalogris Cristina , Dimopoulos George , Ricci Irene , Favia Guido
Published: May 2020

Mosquitoes can transmit many infectious diseases, such as malaria, dengue, Zika, yellow fever, and lymphatic filariasis. Current mosquito control strategies are failing to reduce the severity of outbreaks that still cause high human morbidity and mortality worldwide. Great expectations have been placed on genetic control methods. Among other methods, genetic modification of the bacteria colonizing different mosquito species and expressing anti-pathogen molecules may represent an innovative tool to combat mosquito-borne diseases. Nevertheless, this emerging approach, known as paratransgenesis, requires a detailed understanding of the mosquito microbiota and an accurate characterization of selected bacteria candidates. The acetic acid bacteria Asaia is a promising candidate for paratransgenic approaches. We have previously reported that Asaia symbionts play a beneficial role in the normal development of Anopheles mosquito larvae, but no study has yet investigated the role(s) of Asaia in adult mosquito biology. Here we report evidence on how treatment with a highly specific anti-Asaia monoclonal antibody impacts the survival and physiology of adult Anopheles stephensi mosquitoes. Our findings offer useful insight on the role of Asaia in several physiological systems of adult mosquitoes, where the influence differs between males and females.
Characterization of Gene Isoforms Related to Cellulose and Lignin Biosynthesis in Kenaf (Hibiscus cannabinus L.) Mutant
Authors: Lyu Jae Il , Ramekar Rahul , Kim Dong-Gun , Kim Jung Min , Lee Min-Kyu , Hung Nguyen Ngoc , Kim Jin-Baek , Ahn Joon-Woo , Kang Si-Yong , Choi Ik-Young , Park Kyoung-Cheul , Kwon Soon-Jae
Published: May 2020

Kenaf is a source of fiber and a bioenergy crop that is considered to be a third world crop. Recently, a new kenaf cultivar, "Jangdae," was developed by gamma irradiation. It exhibited distinguishable characteristics such as higher biomass, higher seed yield, and earlier flowering than the wild type. We sequenced and analyzed the transcriptome of apical leaf and stem using Pacific Biosciences single-molecule long-read isoform sequencing platform. De novo assembly yielded 26,822 full-length transcripts with a total length of 59 Mbp. Sequence similarity against protein sequence allowed the functional annotation of 11,370 unigenes. Among them, 10,100 unigenes were assigned gene ontology terms, the majority of which were associated with the metabolic and cellular process. The Kyoto encyclopedia of genes and genomes (KEGG) analysis mapped 8875 of the annotated unigenes to 149 metabolic pathways. We also identified the majority of putative genes involved in cellulose and lignin-biosynthesis. We further evaluated the expression pattern in eight gene families involved in lignin-biosynthesis at different growth stages. In this study, appropriate biotechnological approaches using the information obtained for these putative genes will help to modify the desirable content traits in mutants. The transcriptome data can be used as a reference dataset and provide a resource for molecular genetic studies in kenaf.
The Grafting of Multifunctional Antithrombogenic Chemical Networks on Polyurethane Intravascular Catheters
Authors: Roth Yael , Y. Lewitus Dan
Published: May 2020

Intravascular catheters (IVCs) and other medical tubing are commonly made of polymeric materials such as polyurethane (PU). Polymers tend to be fouled by surface absorption of proteins and platelets, often resulting in the development of bacterial infections and thrombosis during catheterization, which can lead to embolism and death. Existing solutions to fouling are based on coating the IVCs with hydrophilic, anti-thrombogenic, or antimicrobial materials. However, the delamination of the coatings themselves is associated with significant morbidity, as reported by the United States Food and Drug Administration (FDA). We developed a lubricious, antimicrobial, and antithrombogenic coating complex, which can be covalently attached to the surface of industrial PU catheters. The coating complex is pre-synthesized and comprises 2-methacryloyloxyethyl phosphorylcholine (MPC) as an antifouling agent, covalently attached to branched polyethyleneimine (bPEI) as a lubricating agent. The two-step coating procedure involves PU-amine surface activation using a diisocyanate, followed by chemical grafting of the bPEI-S-MPC complex. Compared with neat PU, the coating was found to reduce the coefficient of friction of the IVC surface by 30% and the hemolysis ratio by more than 50%. Moreover, the coating exhibited a significant antimicrobial activity under JIS Z2801:2000 standard compared with neat PU. Finally, in in-vivo acute rabbit model studies, the coating exhibited significant antithrombogenic properties, reducing the thrombogenic potential to a score of 1.3 on coated surfaces compared with 3.3 on uncoated surfaces. The materials and process developed could confer lubricious, antithrombogenic, and antimicrobial properties on pre-existing PU-based catheters.
Polish Nationwide Catholic Opinion-Forming Weeklies on Facebook—A Marketing Perspective
Authors: Jupowicz-Ginalska Anna , Leonowicz-Bukała Iwona , Adamski Andrzej
Published: May 2020

The main focus of this paper is on the marketing approach of the use of Facebook by the Polish nationwide Catholic opinion-forming weeklies. The aim of the research is to analyse how the selected media use Facebook (FB) to create a media product, distribute, price and communicate its content (including self-promotional activities). The Facebook profiles of five weeklies were analysed: Gość Niedzielny, Niedziela, Przewodnik Katolicki, Idziemy and Tygodnik Rodzin Katolickich Źródło. Three research methods were chosen: literature review on marketing use of Facebook by traditional media, the case study and the content analysis (quantitative, qualitative and comparative). The most important results show that the use of the social media platform Facebook by the Catholic weeklies in Poland is limited to supplementing the main communication channel, which is the printed weekly and its website. The studied media treat Facebook as a marketing tool, favouring this function over the potential apologetic or evangelising ones, but at the same time none of the magazines fully exploit Facebook’s potential offered by its systemic and functional features.
Retrieval of Water Quality Parameters from Hyperspectral Images Using Hybrid Bayesian Probabilistic Neural Network
Authors: Zhang Yishan , Wu Lun , Ren Huazhong , Deng Licui , Zhang Pengcheng
Published: May 2020

The protection of water resources is of paramount importance to human beings’ practical lives. Monitoring and improving water quality nowadays has become an important topic. In this study, a novel Bayesian probabilistic neural network (BPNN) improved from ordinary Bayesian probability methods has been developed to quantitatively predict water quality parameters including phosphorus, nitrogen, chemical oxygen demand (COD), biochemical oxygen demand (BOD), and chlorophyll a. The proposed method, based on conventional Bayesian probability methods, involves feature engineering and deep neural networks. Additionally, it extracts significant information for each endmember from combinations of spectra by feature extraction, with spectral unmixing based on mathematical and statistical analysis, and calculates each of the water quality parameters. The experimental results show the great performance of the proposed model with all coefficient of determination R 2 over 0.9 greater than the values (0.6–0.8) from conventional methods, which are greater than ordinary Bayesian probability analysis. The mean percent of absolute error (MPAE) is taken into account as an important statistical criterion to evaluate model performance, and our results show that MPAE ranges from 4% (nitrogen) to 10% (COD). The root mean squared errors (RMSEs) of phosphorus, nitrogen, COD, BOD, and chlorophyll-a (Chla) are 0.03 mg/L, 0.28 mg/L, 3.28 mg/L, 0.49 mg/L, and 0.75 μg/L, respectively. In comparison with other deep learning methods, this study takes a relatively small amount of data as training data to train the proposed model and the proposed model is then tested on the same amount of testing data, achieving a greater performance. Thus, the proposed method is time-saving and more effective. This study proposes a more compatible and effective method to assist with decomposing combinations of hyperspectral signatures in order to calculate the content level of each water quality parameter. Moreover, the proposed method is practically applied to hyperspectral image data on board an unmanned aerial vehicle in order to monitor the water quality on a large scale and trace the location of pollution sources in the Maozhou River, Guangdong Province of China, obtaining well-explained and significant results.
Repeat Oblique Photography Shows Terrain and Fire-Exposure Controls on Century-Scale Canopy Cover Change in the Alpine Treeline Ecotone
Authors: McCaffrey David , Hopkinson Chris
Published: May 2020

Alpine Treeline Ecotone (ATE), the typically gradual transition zone between closed canopy forest and alpine tundra vegetation in mountain regions, displays an elevational range that is generally constrained by thermal deficits. At landscape scales, precipitation and moisture regimes can suppress ATE elevation below thermal limits, causing variability in ATE position. Recent studies have investigated the relative effects of hydroclimatic variables on ATE position at multiple scales, but less attention has been given to interactions between hydroclimatic variables and disturbance agents, such as fire. Advances in monoplotting have enabled the extraction of canopy cover information from oblique photography. Using airborne lidar, and repeat photography from the Mountain Legacy Project, we observed canopy cover change in West Castle Watershed (Alberta, Canada; ~103 km2; 49.3° N, 114.4° W) over a 92-year period (1914–2006). Two wildfires, occurring 1934 and 1936, provided an opportunity to compare topographic patterns of mortality and succession in the ATE, while factoring by exposure to fire. Aspect was a strong predictor of mortality and succession. Fire-exposed areas accounted for 83.6% of all mortality, with 72.1% of mortality occurring on south- and east-facing slope aspects. Succession was balanced between fire-exposed and unburned areas, with 62.0% of all succession occurring on north- and east-facing slope aspects. The mean elevation increase in closed canopy forest (i.e., the lower boundary of ATE) on north- and east-facing undisturbed slopes was estimated to be 0.44 m per year, or ~44 m per century. The observed retardation of treeline advance on south-facing slopes is likely due to moisture limitation.
Combined Study of a Significant Mine Collapse Based on Seismological and Geodetic Data—29 January 2019, Rudna Mine, Poland
Authors: Ilieva Maya , Rudziński Łukasz , Pawłuszek-Filipiak Kamila , Lizurek Grzegorz , Kudłacik Iwona , Tondaś Damian , Olszewska Dorota
Published: May 2020

On 29 January 2019, the collapse of a mine roof resulted in a significant surface deformation and generated a tremor with a magnitude of 4.6 in Rudna Mine, Poland. This study combines the seismological and geodetic monitoring of the event. Data from local and regional seismological networks were used to estimate the mechanism of the source and the ground motion caused by the earthquake. Global Navigation Satellite System data, collected at 10 Hz, and processed as a long-term time-series of daily coordinates solutions and short-term high frequency oscillations, are in good agreement with the seismological outputs, having detected several more tremors. The range and dynamics of the deformed surface area were monitored using satellite radar techniques for slow and fast motion detection. The radar data revealed that a 2-km2 area was affected in the six days after the collapse and that there was an increase in the post-event rate of subsidence.
Game Control Methods Comparison when Avoiding Collisions with Multiple Objects Using Radar Remote Sensing
Authors: Lisowski Józef
Published: May 2020

This article formulates the concept of games in the field of process control theory in marine sciences and reviews the literature on the possible applications of games. The possible types of game control processes for moving objects are presented. A computer-aided object safe control in the game environment, with an appropriate steering system, is described based on radar remote sensing in order to avoid collisions with many other objects that are encountered. First, the basic model of object movement in the game environment is presented as a differential game with many objects, described by appropriate game state equations, state and steering restrictions, and a quality control index in the form of an integral and final payment of the game. Next, the surrogate models of the differential game are described in detail for the development of practical computer control programs using positional and matrix game models. Particular attention, in each type of game, is paid to the aspect of cooperation or lack of cooperation between objects in making maneuvering decisions. A computer simulation illustrates these considerations with game control programs at a sea-crossing situation where multiple objects were encountered. Safe object trajectories are compared using two methods of game control using positional and matrix game models while also considering cases with cooperation or non-cooperation of objects.
Quantitative Airborne Inventories in Dense Tropical Forest Using Imaging Spectroscopy
Authors: Laybros Anthony , Aubry-Kientz Mélaine , Féret Jean-Baptiste , Bedeau Caroline , Brunaux Olivier , Derroire Géraldine , Vincent Grégoire
Published: May 2020

Tropical forests have exceptional floristic diversity, but their characterization remains incomplete, in part due to the resource intensity of in-situ assessments. Remote sensing technologies can provide valuable, cost-effective, large-scale insights. This study investigates the combined use of airborne LiDAR and imaging spectroscopy to map tree species at landscape scale in French Guiana. Binary classifiers were developed for each of 20 species using linear discriminant analysis (LDA), regularized discriminant analysis (RDA) and logistic regression (LR). Complementing visible and near infrared (VNIR) spectral bands with short wave infrared (SWIR) bands improved the mean average classification accuracy of the target species from 56.1% to 79.6%. Increasing the number of non-focal species decreased the success rate of target species identification. Classification performance was not significantly affected by impurity rates (confusion between assigned classes) in the non-focal class (up to 5% of bias), provided that an adequate criterion was used for adjusting threshold probability assignment. A limited number of crowns (30 crowns) in each species class was sufficient to retrieve correct labels effectively. Overall canopy area of target species was strongly correlated to their basal area over 118 ha at 1.5 ha resolution, indicating that operational application of the method is a realistic prospect (R2 = 0.75 for six major commercial tree species).
An Evaluation of Citizen Science Smartphone Apps for Inland Water Quality Assessment
Authors: Malthus Tim J. , Ohmsen Renee , Woerd Hendrik J. van der
Published: May 2020

Rapid and widespread monitoring of inland and coastal water quality occurs through the use of remote sensing and near-surface water quality sensors. A new addition is the development of smartphone applications (Apps) to measure and record surface reflectance, water color and water quality parameters. In this paper, we present a field study of the HydroColor (HC, measures RGB reflectance and suspended particulate matter (SPM)) and EyeOnWater (EoW, determines the Forel–Ule scale—an indication to the visual appearance of the water surface) smartphone Apps to evaluate water quality for inland waters in Eastern Australia. The Brisbane river, multiple lakes and reservoirs and lagoons in Queensland and New South Wales were visited; hyperspectral reflection spectra were collected and water samples were analysed in the laboratory as reference. Based on detailed measurements at 32 sites, covering inland waters with a large range in sediment and algal concentrations, we find that both water quality Apps are close, but not quite on par with scientific spectrometers. EoW is a robust application that manages to capture the color of water with accuracy and precision. HC has great potential, but is influenced by errors in the observational procedure and errors in the processing of images in the iPhone. The results show that repeated observations help to reduce the effects of outliers, while implementation of camera response functions and processing should help to reduce systematic errors. For both Apps, no universal conversion to water quality composition is established, and we conclude that: (1) replicated measurements are useful; (2) color is a reliable monitoring parameter in its own right but it should not be used for other water quality variables, and; (3) tailored algorithms to convert reflectance and color to composition could be developed for lakes individually.
Small-Scale Ionospheric Irregularities of Auroral Origin at Mid-latitudes during the 22 June 2015 Magnetic Storm and Their Effect on GPS Positioning
Authors: Yasyukevich Yury , Vasilyev Roman , Ratovsky Konstantin , Setov Artem , Globa Maria , Syrovatskii Semen , Yasyukevich Anna , Kiselev Alexander , Vesnin Artem
Published: May 2020

Small-scale ionospheric irregularities affect navigation and radio telecommunications. We studied small-scale irregularities observed during the 22 June 2015 geomagnetic storm and used experimental facilities at the Institute of Solar-Terrestrial Physics of the Siberian Branch of the Russian Academy of Sciences (ISTP SB RAS) located near Irkutsk, Russia (~52°N, 104°E). The facilities used were the DPS-4 ionosonde (spread-F width), receivers of the Irkutsk Incoherent Scatter Radar (Cygnus A signal amplitude scintillations), and GPS/GLONASS receivers (amplitude and phase scintillations), while 150 MHz Cygnus A signal recording provides a unique data set on ionosphere small-scale structure. We observed increased spread-F, Cygnus A signal amplitude scintillations, and GPS phase scintillations near 20 UT on 22 June 2015 at mid-latitudes. GPS/GLONASS amplitude scintillations were at a quiet time level. By using global total electron content (TEC) maps, we conclude that small-scale irregularities are most likely caused by the auroral oval expansion. In the small-scale irregularity region, we recorded an increase in the precise point positioning (PPP) error. Even at mid-latitudes, the mean PPP error is at least five times that of the quiet level and reaches 0.5 m.
Assessment of New Satellite Missions within the Framework of Numerical Weather Prediction
Authors: Newman Stuart , Carminati Fabien , Lawrence Heather , Bormann Niels , Salonen Kirsti , Bell William
Published: May 2020

Confidence in the use of Earth observations for monitoring essential climate variables (ECVs) relies on the validation of satellite calibration accuracy to within a well-defined uncertainty. The gap analysis for integrated atmospheric ECV climate monitoring (GAIA-CLIM) project investigated the calibration/validation of satellite data sets using non-satellite reference data. Here, we explore the role of numerical weather prediction (NWP) frameworks for the assessment of several meteorological satellite sensors: the advanced microwave scanning radiometer 2 (AMSR2), microwave humidity sounder-2 (MWHS-2), microwave radiation imager (MWRI), and global precipitation measurement (GPM) microwave imager (GMI). We find departures (observation-model differences) are sensitive to instrument calibration artefacts. Uncertainty in surface emission is identified as a key gap in our ability to validate microwave imagers quantitatively in NWP. The prospects for NWP-based validation of future instruments are considered, taking as examples the microwave sounder (MWS) and infrared atmospheric sounding interferometer-next generation (IASI-NG) on the next generation of European polar-orbiting satellites. Through comparisons with reference radiosondes, uncertainties in NWP fields can be estimated in terms of equivalent top-of-atmosphere brightness temperature. We find NWP-sonde differences are consistent with a total combined uncertainty of 0.15 K for selected temperature sounding channels, while uncertainties for humidity sounding channels typically exceed 1 K.
Single Mothers’ Perspectives on the Combination of Motherhood and Work
Authors: Van Gasse Dries , Mortelmans Dimitri
Published: May 2020

This study aims to define the perspectives taken by single mothers when combining work and motherhood in a stressful work–life constellation. One of the challenges for single mothers after divorce is to find a work–life balance in their single-parent family system. Regarding work-life balance, we take a General Strain Perspective, describing the work-life conflict as a combination of financial strain and role strain. We argue that both strains are the most problematic for single mothers in comparison to their married and/or male counterparts, as both finances and parenthood ideologies are more under pressure. For this reason, we explore how single mothers coped with this strain, answering the question: ‘Which perspectives on the combination motherhood and work do single mothers take in their attempt to balance role strain and financial strain after divorce?’ To answer this research question, we used a qualitative approach, based on 202 in-depth interviews with single mothers in Belgium. These interviews involved two groups: A primary research population of 13 single mothers and an elaborative research population of 189 single mothers. Timelines were used to structure the single mothers’ narratives. The analysis resulted in the contruction of a typology of four different perspectives based on how single mothers dealt with maternal role strain and financial strain: the re-invented motherhood perspective, the work-family symbiosis perspective, the work-centered motherhood perspective and the work-family conflicted perspective. We found that perspective of single mothers in their work-life strain can be described by the flexibility and/or strictness in either their motherhood ideology and/or their work context. These results point at the needs for policymakers, employers, and practitioners to focus on initiatives improving the work–life balance of single mothers by reducing financial and role strains.
Reciprocity and Veto Power in Relation-Specific Investments: An Experimental Study
Authors: Zheng Kaiming , Wang Xiaoyuan , Ni Debing , Yang Yang
Published: May 2020

Relation-specific investments are usually associated with great risk. Investors, afraid of being held up, are likely to invest too little, endangering both financial and organizational sustainability. Theory suggests that relation-specific investment decisions are mainly affected by potential ex-post bargaining, while experimental evidence shows social-preference-driven thinking affects both investors’ and investees’ behavior. We decompose an experimental hold-up game to identify the effect of reciprocity and the effect of veto power on investees’ transfers. In addition, we investigate the effects of corresponding information disclosures on investors’ performance as possible behavioral remedies to the hold-up problem. We find strong evidence of the effect of reciprocity and reciprocity-related information significantly lower investors’ suboptimal investment. Investors underestimate the effect of reciprocity without related information disclosure. In contrast, we find little evidence of the effect of ex-post veto power on investment decisions. Our results imply that reciprocity-related information disclosure is helpful in promoting both financial and organizational sustainability.
Condensation Control to Cope with Occupancy Activity and Effectively Mitigate Condensation in Unheated Spaces by Real-Time Sensor Control Strategy
Authors: Lee June Hae , Yeo Myoung Souk
Published: May 2020

The occurrence of condensation and its prevention strategies are already known phenomena in physical buildings. However, the condensation problem still exists in newly constructed buildings. In the typical Korean residential unit, the balcony space is the most problematic area for condensation. This paper provides a solution for preventing condensation by considering a change from the fixed parameters of buildings to an IoT (Internet of Things) implemented real-time sensor control solution. To provide this solution, field measurements are acquired for a building diagnosis, an EnergyPlus simulation and site experiment to investigate the new parameters. The field measurements reveal that occupancy activity increases the possibility of condensation, and the control strategy involves the application of insulation, the use of ventilation, and controlling the opening of the balcony door. The insulation thickness and ventilation rate parameters are reviewed by the simulation; however, the uncertainty related to the moisture generation rate by occupants makes it difficult to ascertain the building’s physical parameters. Door and intermittent ventilation is controlled by the real-time sensor IoT experiment to block the moisture transfer and remove the moisture generation. This experiment has been confirmed to shorten the remaining time of condensation. Instead of providing a fixed parameter values for solution, applying sensor-controlled strategy is effective for uncertain cases involves with moisture generation. This study provides a control solution for condensation in vulnerable spaces and simultaneously provides a new design approach that adopts IoT applications to control the indoor conditions.
Knowledge Management Practice in General Education Schools as a Tool for Sustainable Development
Authors: Raudeliūnienė Jurgita , Tvaronavičienė Manuela , Blažytė Milda
Published: May 2020

The already scarce and further dwindling natural resources, increasing environmental pollution, and other environmental, economic, and social challenges that transcend national boundaries necessitate the continuous pursuit of the more responsible implementation of the principles of sustainable development in the public and business sectors, especially in general education schools, as the future and welfare of the society depend on education results. Therefore, the implementation of knowledge management practices in general education schools is one of the efficient ways of achieving the principles of sustainable development and their positive outcomes for society and the state. This research aimed to evaluate the peculiarities of applying knowledge management practices in general education schools for sustainable development. Research methods such as analysis of scientific literature, multiple-criteria assessment, survey, and expert evaluation were used to achieve the goal of the study. The results of the study showed that there is a high potential in general education schools for the application of knowledge management practices to achieve sustainable development. However, general education schools still face a lack of teachers’ motivation and a lack of financial resources to apply knowledge management practices and improve knowledge infrastructure for sustainability.
Toward a Quadruple Bottom Line: Social Disclosure and Financial Performance in the Banking Sector
Authors: Manta Francesco , Tarulli Annunziata , Morrone Domenico , Toma Pierluigi
Published: May 2020

The present study aims to analyze the existence of a possible significant relationship between social disclosure and financial performance in banking institutions. This phenomenon was analyzed by considering the percentage of female executives on boards, and the implementation of the equal opportunity policy when it was applied. We used a sample of 61 banks from European Union countries (between 2015–2017), and sampling was environmental, social, or governance (ESG)-driven in order to capture the effect of non-financial disclosure provided by Bloomberg. A cross-section econometric model was built in order to examine the relationship between the percentage of female directors on boards and the equal opportunity policy. Both the independent variables of banks and performance indicators were adopted as dependent variables. Our study provides empirical evidence that while there is a lack of efficiency and performance when boards are fragmented, the enactments of equal opportunity policies create a good reputation for the firm and the positive performance of staff. The study aims to contribute to the ongoing debate on social sustainability and on the phenomenon of the glass ceiling, and provides political and entrepreneurial implications.
Risks of Banking Services’ Digitalization: The Practice of Diversification and Sustainable Development Goals
Authors: Zabala Aguayo Francisco , Ślusarczyk Beata
Published: May 2020

The study aims to investigate threats that might occur in diversification management, operational risks of banking services in the process of digitalization, as well as the impact on customers and banks. The right choice of a risk management model for a bank plays an important role in the sustainable development of competitiveness and the transformation of banking activities in the future. This work assesses bank risks and determines information risks in relation to the total capital of Santander Bank of Spain. The authors adapted an operational risk management (ORM) model to minimize the risks of the bank’s digitalization and upcoming operational risks. The ratio of the total operational risk to the total bank’s capital was 0.65%, which is below the permissible minimum value and is acceptable. Based on this indicator, diversification of business risks can be applied. As a result of the study, the total value of operational risks was calculated and the acceptability of this indicator to the capital of Santander Bank was assessed, which allowed the authors to assess whether the value was critical. In addition, it was also revealed that the main external risk of Santander Bank in 2018 was fraud in the use of online payments. The results might help to more effectively evaluate insurance payments for identified operational risks and effectively make decisions and optimize reporting documents of banks.
Current Distribution and Status of Non-Native Freshwater Turtles in the Wild, Republic of Korea
Authors: Koo Kyo Soung , Song Soorim , Choi Jae Hyeok , Sung Ha-Cheol
Published: May 2020

Globally, an increase in the transportation and expansion of the pet market is the most important cause of the invasion of non-native species. Invasion of non-native species disturbs native ecosystems and leads to socio-economic problems. The pet trade involving turtles has been globally recognized as the route through which non-native species enter ecosystems. As a result, the invasion of non-native turtles worldwide is causing problems such as competition, predation, transmission of parasites, and hybridization with native turtles. Every year, both the number of non-native turtles imported as pets in the Republic of Korea and the number of introduced species found in the wild is increasing. However, the current status of non-native turtles in the wild is not well known, posing major challenges to their management. In this study, we aimed to determine the current status of non-native turtles introduced into the wild in Korea. We analyzed the factors associated with the detection and distribution of non-native turtles. In total, 1587 of non-native turtles (three families, six genera, and 13 species including subspecies) were found in 648 sites in Korea: Chelydra serpentina, Mauremys sinensis, Chrysemys picta bellii, Graptemys ouachitensis, G. pseudogeographica pseudogeographica, G. p. kohni, Pseudemys concinna, P. nelsoni, P. peninsularis, P. rubriventris, Trachemys scripta elegans, T. s. scripta, and T. s. troostii. There was relationship between the distribution of non-native turtles and environmental factors such as precipitation and temperature. Moreover, human factors such as number of human populations and size of region were significantly related with the distribution and number of non-native turtles. In conclusion, it is likely that human factors are associated with the influx of invasive turtles to the natural habitat, while the possibility of survival and adaption for the turtles is associated mainly with environmental factors. Our result will be an essential guideline not only for understanding the current status of non-native turtles in Korea, but also for establishing strategies for management and control.
Social Media Use and Job Performance in the Workplace: The Effects of Facebook and KakaoTalk Use on Job Performance in South Korea
Authors: Lee Seung Yeop , Lee Sang Woo
Published: May 2020

The use of social media, such as social networking sites and instant messaging, in everyday life continues to spread, along with social media use in the workplace. This study examined how using social media like Facebook (social networking sites) and KakaoTalk (instant messaging) at work affects individual job performance. It also analyzed whether social media use has different effects on individual job performance depending on the characteristics of the given task. The results demonstrated that both Facebook and KakaoTalk had linearly positive effects on individual job performance. Moreover, task equivocality had a positive moderating effect on the relationship between KakaoTalk use and job performance. The results may have significant implications for firms reviewing their policies on employees’ social media use. Since using social media such as Facebook and KakaoTalk in the workplace improves job performance, firms may consider encouraging employees toward this practice. In particular, they may consider supporting those employees who perform tasks with high task equivocality in making use of instant messaging platforms.
Guidelines for Operationalizing Policy Coherence for Development (PCD) as a Methodology for the Design and Implementation of Sustainable Development Strategies
Authors: Koff Harlan , Challenger Antony , Portillo Israel
Published: May 2020

Policy Coherence for Development (PCD) is considered a pillar of the 2030 Sustainable Development Agenda. It aims to promote whole of government approaches to sustainable development. Despite its prominence in development cooperation discussions, many national development professionals or stakeholders have not heard of PCD, indicating that its effectiveness is significantly limited. This article contends that the impact of PCD has not been maximized because it has been presented as a political objective or a policy tool by multilateral organizations and their member states. Instead, the article argues that PCD should be implemented as a methodology that can be adopted by domestic government and non-governmental actors alike, in order to understand trade-offs and co-benefits within and between policy sectors, thus promoting a participative approach. I-GAMMA is a research project in Mexico that examines data-driven public policy in order to promote PCD. It is based on in-depth reviews of policy documents and interviews with development actors. It is committed to open data, evidence-based policymaking, and collaborative dialogue between academics, government officials, and representatives of civil society organizations in sustainable development discussions. In the results section of this article, the project proposes participative PCD as a methodology for policy analysis through which a plurality of actors can identify mechanisms that either reinforce or undermine sustainable development strategies. This section then applies the methodology to the governance of protected natural areas in Mexico. The discussion section and the conclusions highlight the relevance of this approach for participative policymaking in sustainable development.
CASD-14: A Questionnaire on Civic Attitudes and Sustainable Development Values for Service-Learning in Early Adolescents
Authors: Ruiz-Ordóñez Yolanda , Salcedo-Mateu Amparo , Turbi-Pinazo Ángel Manuel , Novella-García Carlos , Moret-Tatay Carmen
Published: May 2020

The service-learning disciplines can offer a unique opportunity for the civic development of sustainable values, as there is a large body of research that links them to values and civic attitudes. Given the need to develop instruments to measure the impact of service-learning methodology in early adolescence, a questionnaire was developed. For this purpose, a group of experts in the field of service-learning proposed a battery of items measuring three different constructs, named as follows: solidarity, compromise–responsibility and respect–dialog. The factor structure was examined, as well as its invariance across sex. The questionnaire confirmed good psychometric properties. Furthermore, the results have shown optimal goodness-of-fit indices. Sex was a variable to consider, as the analysis of invariance did not reach the scalar level. Lastly, the CASD-14 showed optimal test–retest reliability for both subsamples after eight months. The greatest contribution of this study is that it provides a direction for the application and sustainable development of the current scale, which might be considered a valuable assessment tool for early adolescent students’ service-learning. More research is needed with regard to sex-related differences in early adolescence.