scholarly journals Effects of Intermittent Water Allocation on Vegetation Dynamics in Lake Baiyangdian, North China

Water ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1400
Author(s):  
Fei Wang ◽  
Xueke Wang ◽  
Ying Zhao
Keyword(s):  
Linear Regression ◽  
Water Allocation ◽  
Abrupt Change ◽  
Temporal Variations ◽  
Vegetation Coverage ◽  
Positive Effects ◽  
Growing Seasons ◽  
Decomposition Procedure ◽  
Before And After ◽  
Lake Baiyangdian

The ecological effects of intermittent water supplement in Lake Baiyangdian were analyzed with an NDVI time series based on the data from 1 April 1998 to 31 July 2008. Four NDVI categories were extracted, and twelve stages were grouped based on the specific replenishment time of water allocation. STR (a seasonal-trend decomposition procedure based on regression) and its corresponding linear regression and abrupt change detection were used to highlight the temporal variations in vegetation under the effects of water allocation. ANOVA was used to identify the response quality of the vegetation in each stage. The results showed that the significant increasing trend of each NDVI category was detected by linear regression (p < 0.001). The 95% abrupt change intervals showed uncertainty and complexity in the immediate vegetation response to water division times. The most abrupt changes were detected in the growing seasons. The extremely significant differences in NDVI variation before and after water allocations were detected by ANOVA (p < 0.001, t-test). The longer the duration of water allocation was maintained, the higher the detection of vegetation coverage was relatively. The increased vegetation coverage benefited from the constant water supply. Our results provide evidence of vegetation responses to intermittent water divisions. The positive effects of water allocation on regional ecological restoration were confirmed. This study strengthened the water division effects of regional vegetation restoration and provided a practical strategy for an effective implementation of water allocation.

scholarly journals Analysis of the Ecological Effects of Decadal Large Scale Intermittent Annual Water Allocation using Satellite Data in Baiyangdian Wetland, Northern China

2018 ◽  
Vol 246 ◽  
pp. 01031
Author(s):  
Fei Wang ◽  
Ying Zhao
Keyword(s):  
Anomaly Detection ◽  
Water Flow ◽  
Water Allocation ◽  
Large Scale ◽  
Ecological Effects ◽  
Vegetation Coverage ◽  
River Channels ◽  
Flow Paths ◽  
Decomposition Procedure ◽  
Water Flow Paths

In this study, the ecological effects of intermittent water allocation with emphasis on spatiotemporal responses of the corresponding vegetation were analyzed using remote sensing data and GIS-based buffer technology considering the period from 1st July 2000 to 31st December 2009. Three sampling sites (Angzh, Wangk, and Xidayang) with different water flow paths and three buffer distances were distinguished in the research. The Seasonal-Trend decomposition procedure based on Regression (STR) trend extraction and its corresponding linear regression and anomaly detection were executed to determine temporal variations of vegetation under the effects of water allocation. ANOVA and PCA methods were employed to identify the spatial responses of vegetation to different water flow paths and buffer distances. The results were as follows: (1) NDVI except NDVImin displayed higher values during the period without water allocation; (2) extremely significant decline trends (p<0.001) of all NDVI categories were observed in all sites at all buffer distance levels, except for NDVImin at buffer distances of 2 km and 4 km in Angzh, showing stronger fluctuations of frequency after 2008 as well as the decline gradient with the extent of buffer distance to river. The anomaly detection results provided similar evidence of stronger NDVI fluctuations after 2008; (3) water allocation had extremely significant effects on regional vegetation coverage (p<0.01) with a decline gradient of statistical p values along enlarged buffer distances. Our results provide evidence of spatial and temporal differences in vegetation response to water availability due to the intermittent frequency water allocation implemented via different river channels. The findings of this study will deepen our understanding of the effects of water division on regional vegetation restoration and can be used to develop a practical strategy for effective implementation of water allocation.

Effects of a 6-Week Straw Phonation in Water Exercise Program on the Aging Voice

2020 ◽  
Vol 63 (4) ◽  
pp. 1018-1032
Author(s):  
Chia-Hsin Wu ◽  
Roger W. Chan
Keyword(s):  
Acoustic Analysis ◽  
Vocal Tract ◽  
Exercise Program ◽  
Analysis Of Covariance ◽  
Elderly Subjects ◽  
Control Group ◽  
Perceptual Evaluation ◽  
Positive Effects ◽  
Aging Voice ◽  
Before And After

Purpose Semi-occluded vocal tract (SOVT) exercises with tubes or straws have been widely used for a variety of voice disorders. Yet, the effects of longer periods of SOVT exercises (lasting for weeks) on the aging voice are not well understood. This study investigated the effects of a 6-week straw phonation in water (SPW) exercise program. Method Thirty-seven elderly subjects with self-perceived voice problems were assigned into two groups: (a) SPW exercises with six weekly sessions and home practice (experimental group) and (b) vocal hygiene education (control group). Before and after intervention (2 weeks after the completion of the exercise program), acoustic analysis, auditory–perceptual evaluation, and self-assessment of vocal impairment were conducted. Results Analysis of covariance revealed significant differences between the two groups in smoothed cepstral peak prominence measures, harmonics-to-noise ratio, the auditory–perceptual parameter of breathiness, and Voice Handicap Index-10 scores postintervention. No significant differences between the two groups were found for other measures. Conclusions Our results supported the positive effects of SOVT exercises for the aging voice, with a 6-week SPW exercise program being a clinical option. Future studies should involve long-term follow-up and additional outcome measures to better understand the efficacy of SOVT exercises, particularly SPW exercises, for the aging voice.

Analisis Komparatif Return Saham Dan Volume Perdagangan Saham Sebelum dan Sesudah Harbolnas Pada Perusahaan Dagang Yang Terdaftar Di Bei

2020 ◽  
Vol 17 (2) ◽  
Author(s):  
Devy Putri Milanda ◽  
Taufan Adi Kurniawan
Keyword(s):  
Linear Regression ◽  
Abnormal Return ◽  
Stock Return ◽  
Industrial Revolution ◽  
Online Shopping ◽  
Stock Exchange ◽  
Trade Volume ◽  
Volume Activity ◽  
Significance Level ◽  
Before And After

The industrial revolution resulted in several industries changing their management in order to survive, one of the industries that was affected quite considerably was the trading industry. This study aims to analyze stock return and Trade Volume Activity (TVA) of trading companies in Indonesia Stock Exchange (IDX) before and after Harbolnas (Hari Belanja Online Nasional) or National Online Shopping Days. The samples are all trading companies that have listed on the IDX in the year 2019. This study use multiple linear regression with a significance level of 5%. The results show there are no significant differences in the abnormal return before and after Harbolnas, and there are no significant differences in the TVA before and after the harbolnas

scholarly journals Is Brief Exposure to Green Space in School the Best Option to Improve Attention in Children?

2021 ◽  
Vol 18 (14) ◽  
pp. 7484
Author(s):  
Asier Anabitarte ◽  
Gonzalo García-Baquero ◽  
Ainara Andiarena ◽  
Nerea Lertxundi ◽  
Nerea Urbieta ◽  
...  
Keyword(s):  
Air Pollution ◽  
School Children ◽  
Green Space ◽  
Meta Analysis ◽  
Statistical Design ◽  
Green Spaces ◽  
Attention Network Test ◽  
Positive Effects ◽  
Gender Biases ◽  
Before And After

The positive effects of Green Spaces on health are thought to be achieved through the mechanisms of mitigation, instoration and restoration. One of the benefits of Green Spaces may be the restoration of attention and so the objective of this research is testing empirically whether exposure to a green environment improves attention in school children. For so doing, we first used a split-unit statistical design in each of four schools, then combined the primary results via meta-analysis. The Attention Network Test (ANT) was used to measure attention before and after exposure and a total of 167 seven-year-old students participated in the experiments. Overall, our experimental results do not support the hypothesis that students’ exposure to activities in green vs. grey spaces affected their performance in ANT. This was so despite the fact that neither age nor gender biases have been detected and despite that our experiments have been proved to be sufficiently statistically powerful. It would be advisable to consider air pollution and noise. We also recommend that participants attend the experiment with mental exhaustion to maximize the ability to detect significant changes.

scholarly journals Unlocking an acute psychiatric ward: The impact on unauthorised absences, assaults and seclusions

2017 ◽  
Vol 41 (2) ◽  
pp. 92-96 ◽  
Author(s):  
Ben Beaglehole ◽  
John Beveridge ◽  
Warren Campbell-Trotter ◽  
Chris Frampton
Keyword(s):  
Psychiatric Inpatient ◽  
Psychiatric Ward ◽  
Inpatient Service ◽  
Positive Effects ◽  
Adverse Event Data ◽  
Before And After ◽  
Acute Psychiatric Ward ◽  
Restrictive Environment ◽  
Open Wards ◽  
The Impact

Aims and methodThe acute psychiatric inpatient service in Christchurch, New Zealand, recently changed from two locked and two unlocked wards to four open wards. This provided the opportunity to evaluate whether shifting to an unlocked environment was associated with higher rates of adverse events, including unauthorised absences, violent incidents and seclusion. We compared long-term adverse event data before and after ward configuration change.ResultsRates of unauthorised absences increased by 58% after the change in ward configuration (P = 0.005), but seclusion hours dropped by 53% (P = 0.001). A small increase in violent incidents was recorded but this was not statistically significant.Clinical implicationsAlthough unauthorised absences increased, the absence of statistically significant changes for violent incidents and a reduction in seclusion hours suggest that the change to a less restrictive environment may have some positive effects.

scholarly journals Clowns Benefit Children Hospitalized for Respiratory Pathologies

2011 ◽  
Vol 2011 ◽  
pp. 1-9 ◽  
Author(s):  
Mario Bertini ◽  
Elena Isola ◽  
Giuseppe Paolone ◽  
Giuseppe Curcio
Keyword(s):  
Statistical Significance ◽  
Systolic Pressure ◽  
Therapeutic Modality ◽  
Control Group ◽  
Self Evaluation ◽  
Positive Effects ◽  
Before And After ◽  
Two Parameters ◽  
Therapeutic Settings ◽  
Experimental Group

The study aims at evaluating health-generating function of humor therapy in a hospital ward hosting children suffering from respiratory pathologies. The main scope of this study is to investigate possible positive effects of the presence of a clown on both the clinical evolution of the on-going disease, and on some physiological and pain parameters. Forty-three children with respiratory pathologies participated in the study: 21 of them belonged to the experimental group (EG) and 22 children to the control group (CG). During their hospitalization, the children of the EG interacted with two clowns who were experienced in the field of pediatric intervention. All participants were evaluated with respect to clinical progress and to a series of physiological and pain measures both before and after the clown interaction. When compared with the CG, EG children showed an earlier disappearance of the pathological symptoms. Moreover, the interaction of the clown with the children led to a statistically significant lowering of diastolic blood pressure, respiratory frequency and temperature in the EG as compared with the control group. The other two parameters of systolic pressure and heart frequency yielded results in the same direction, without reaching statistical significance. A similar health-inducing effect of clown presence was observed on pain parameters, both by self evaluation and assessment by nurses. Taken together, our data indicate that the presence of clowns in the ward has a possible health-inducing effect. Thus, humor can be seen as an easy-to-use, inexpensive and natural therapeutic modality to be used within different therapeutic settings.

scholarly journals Gaseous and particulate urban air pollution in the region of Vojvodina (Serbia)

2015 ◽  
pp. 87-97
Author(s):  
Slavica Malinovic-Milicevic ◽  
Dragutin Mihailovic ◽  
Emilija Nikolic-Djoric ◽  
Marija Jevtic
Keyword(s):  
Air Pollution ◽  
Urban Air Pollution ◽  
Temporal Variations ◽  
Heating Season ◽  
Limit Values ◽  
Substantial Impact ◽  
Pollution Levels ◽  
Positive Effects ◽  
Increasing Trend ◽  
Calm Wind

The present study focuses on interpretations of the temporal variations and variations between urban locations of sulfur dioxide (SO2), nitrogen dioxide (NO2) and black smoke (BS) during the period 2001-2008 in the Vojvodina Region of Serbia (VR_S). In this study we examined variations of pollutants concentrations during household heating and non-heating seasons and the effect of household heating, traffic, rainfall and wind speed on the air pollution levels of SO2, NO2 and BS in eight locations. The analyses showed that the annual limit values of these pollutants as recommended by the Serbian regulations and recommendations were not exceeded, unlike the daily limits. Higher SO2 concentrations during household heating season in four locations indicate the substantial impact of house?hold heating on air quality. Positive effects of the use of environmentally cleaner fuels were observed in only two locations. The growing impact of traffic on air pollution is shown by the increasing trend of NO2 during both seasons. Calm wind conditions and an absence of rainfall were found to have incremental effects on pollution levels in most locations.

scholarly journals The Influence of Biochar, Slow-Release Molasses, and an Organic N:P:K Fertilizer on Transplant Survival of Pyrus communis ‘Williams’ Bon Chrétien’

2016 ◽  
Vol 42 (2) ◽  
Author(s):  
Emma Schaffert ◽  
Glynn Percival
Keyword(s):  
Slow Release ◽  
Soil Amendments ◽  
Pyrus Communis ◽  
Low Fertility ◽  
Economic Losses ◽  
Soil Conditions ◽  
Urban Landscapes ◽  
Transplant Survival ◽  
Positive Effects ◽  
Growing Seasons

High mortality rates result from transplanting bare-rooted plants into urban landscapes where unsuitable soil conditions, such as low fertility and poor structure, often exist. Coupled with little aftercare, these losses can cause high economic losses to the industry. Previous studies have shown lowered transplant stress and higher survival rates through the addition of soil amendments at the time of planting to improve soil conditions. The efficacy of three soil amendments applied singly and in combination—biochar, slow-release molasses, and an organic N:P:K fertilizer—were investigated for their potential to reduce transplant losses of Pyrus communis ‘Williams’ Bon Chrétien. Results of this investigation showed that use of these soil amendments in virtually all cases had significant positive effects on tree growth and vitality across two growing seasons. For example, all amendments reduced mortality of Pyrus communis ‘Williams’ Bon Chrétien’ by 20% compared to none in treated controls, while increases in fruit yield and crown canopy coverage per tree ranged from 19.3% to 46.7% and 14.4% to 31.1% over non-amended soils when averaged over two growing seasons. Amendments of biochar with an organic N:P:K fertilizer and an organic N:P:K fertilizer alone showed, on average, the highest improvements in vitality and growth. Results indicate use of biochar, slow-release molasses, and organic N:P:K fertilizer amendments offer potential for increasing bare-root transplant survival and establishment of Pyrus communis ‘Williams’ Bon Chrétien.

scholarly journals PENGARUH REVIU RKA-K/L OLEH APIP TERHADAP EFISIENSI ALOKASI ANGGARAN KEMENTERIAN AGAMA

2019 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
Edy Effendi ◽  
Muhammad Imron
Keyword(s):  
Linear Regression ◽  
Simple Linear Regression ◽  
Independent Variables ◽  
Dependent Variables ◽  
Before And After ◽  
The Impact ◽  
The Relationship ◽  
Positive Effect

Research on the role of the APIP review of the Ministry/agency Work Plan and Budget document to determine the impact on the efficiency of ministry/agency spending (case study at the Ministry of Religion). The method used in this study uses simple linear regression with dummy. The use of linear regression is used to examine the relationship between independent variables (certain types of expenditure) and dependent variables (total expenditure). Whereas, dummy is used to find out before and after the APIP review is done. Throughout the author's search, this research has never been done. Based on the results of linear regression obtained, the APIP review significantly had a positive effect on official travel expenditure and honorarium but did not significantly affect building spending and equipment. Abstrak   Penelitian atas peran reviu APIP atas dokumen Rencana Kerja dan Anggaran Kementerian Negara/Lembaga untuk mengetahui dampaknya terhadap efisiensi belanja kementerian/lembaga (studi kasus pada Kementerian Agama). Metode yang digunakan dalam penelitian ini menggunakan regresi linier sederhana dengan dummy. Penggunaan regresi liner digunakan untuk meneliti hubungan antara variable independen (jenis belanja tertentu) dan variable dependen (total belanja). Sedangkan, dummy digunakan untuk mengetahui sebelum dan setelah reviu APIP dilakukan. Sepanjang penelusuran penulis, penelitian ini belum pernah dilakukan. Berdasarkan hasil regresi linier diperoleh, reviu APIP signifikan berpengaruh positif terhadap  belanja perjalanan dinas dan honorarium tetapi tidak signifikan berbengaruh terhadap belanja gedung dan alat.

scholarly journals Evaluation of the Effect of Macronutrients Combination on Blood Sugar Levels in Healthy Individuals

2021 ◽  
Author(s):  
Berrak BASTURK ◽  
Zeynep KOC OZERSON ◽  
Aysun YUKSEL
Keyword(s):  
Blood Glucose ◽  
Fasting Blood Glucose ◽  
Protein Source ◽  
Carbohydrate Source ◽  
Glucose Levels ◽  
Positive Effects ◽  
Blood Glucose Levels ◽  
Before And After ◽  
Sugar Levels ◽  
Mean Blood Glucose

Background: The positive effects of blood glucose levels should be demonstrated in healthy or type 2 diabetic individuals who can be recommended to consume macronutrients (protein + fat) with carbohydrates. Therefore, at the end of the research planned with the amount of carbohydrates and fats that can be consumed in a meal, we aimed to recommend the consumption of food with high protein content egg together with the carbohydrate source. Methods: The study was carried out from Nov 2017 to Apr 2018 by looking at fasting blood glucose levels using feeding 2 different test foods on a minimum of 8 h of fasting in the Haliç University Sutluce Campus, Istanbul, Turkey. Before and after the carbohydrate and carbohydrate + protein source, blood glucose was measured from the fingertip for 3 days in 30 min, 60 min and 120 min periods. The average of 3 days was used in the analysis. Results: Blood glucose values were compared after individuals were given carbohydrate and carbohydrate + protein source. The mean blood glucose value 60 min after the carbohydrate administration was significantly higher than the average blood glucose value 60 min after the carbohydrate + protein administration (P= 0.006). Conclusion: A protein-containing diet positively affects the glycemia response and can recommend it. In individuals with diabetes, they should focus on the effects of proteins to achieve glycemia control.

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