Modeling Effects of Tidal Barrier Closure of Venice Lagoon

1991 ◽  
Vol 24 (6) ◽  
pp. 149-155 ◽  
Author(s):  
G. T. Orlob ◽  
A. E. Bale ◽  
H. Rajbhandari ◽  
M. Malagoli
Keyword(s):  
Water Quality ◽  
Preliminary Investigation ◽  
Venice Lagoon ◽  
Past Century ◽  
Shallow Lagoon ◽  
The Mean ◽  
The Difference ◽  
Agricultural Areas ◽  
Water Quality Models ◽  
The City

As a combined result of land subsidence and sea level rise in the vicinity of the City of Venice there has been a net decrease in the difference between the mean elevations of land and sea of about 30 centimetres over the past century. This has resulted in an increased incidence of flooding in Venice with occasional disastrous consequences, as in November 1966 when storm and tide conditions combined to flood the Piazza San Marco to depths exceeding one metre. Among the solutions proposed to solve the flooding problem is a modular tidal barrier that is designed to close the three major entrances to the shallow lagoon in which Venice is situated. Because the lagoon is highly eutrophic and circulation is driven primarily by the tide in the Adriatic Sea, there is concern that operation of the barriers could exacerbate an already serious problem of pollution. The lagoon currently receives the untreated waste water from Venice with an organic loading equivalent to more than 400,000 persons during the tourist season, industrial discharges from the Port of Marghera, and non-point accretions of nutrients from adjacent agricultural areas. Preliminary investigation of the effects of the proposed barrier scheme using mathematical hydrodynamic and water quality models suggests that prolonged isolation of the lagoon from the sea, if this should become necessary for flood protection, may enhance primary production and induce unfavorable water quality conditions. This paper presents results of this investigation and offers suggestions for further refinement and application of the models to assist in the environmental impact assessment which must be performed prior to barrier construction.

Modelling the point and non-point nitrogen loads to the Venice Lagoon (Italy): the application of water quality models to the Dese-Zero basin

Desalination ◽  
2008 ◽  
Vol 226 (1-3) ◽  
pp. 81-88 ◽  
Author(s):  
Roberta Salvetti ◽  
Marco Acutis ◽  
Arianna Azzellino ◽  
Marta Carpani ◽  
Carlo Giupponi ◽  
...  
Keyword(s):  
Water Quality ◽  
Venice Lagoon ◽  
Quality Models ◽  
Nitrogen Loads ◽  
Water Quality Models

Pengetahuan dan pelaksanaan Kemahiran Proses Sains (KPS) dalam dalam kalangan guru

2017 ◽  
Vol 7 (1) ◽  
pp. 56-67
Author(s):  
Saniah Sembak ◽  
Norazilawati Abdullah
Keyword(s):  
Science Teachers ◽  
School Teacher ◽  
Secondary Science Teachers ◽  
School Based ◽  
Significant Difference ◽  
Level Of Knowledge ◽  
The Mean ◽  
The Difference ◽  
Manova Analysis ◽  
The City

This study aims to assess the level of knowledge and the implementation of five Integrated Science Process Skills (ISPS) comprising Build hypothesis, control variables, redefinition In operation, interpreting data and experimenting in School Based Assessment (PBS). In addition, this study is to identify the difference between knowledge and implementation of the ISPS gender and school location. The sample consisted of 407 lower secondary science teachers in Melaka and randomly selected from 66 schools. Quantitative data analysis using SPSS version 19. The instrument consists of a questionnaire (Cronbach Alpha 0.884), and Knowledge Test ISPS and implementation checklist ISPS. Descriptive statistics as a whole that the level of knowledge and implementation of ISPS is moderate (Mean = 3.11 and 32.81). MANOVA analysis found no significant difference in terms of the mean scores of Knowledge and implementation between male and female teachers. While the mean score of knowledge Build hypothesis teachers in rural schools, higher and significantly different than the city school teacher. A number of recommendations put forward to improve the knowledge and implementation of the ISPS teachers. This is expected to meet the goals of the Malaysia Education Blueprint 2013-2025 that is to achieve the vision and aspirations of the student’s education system that can meet the needs of the country in the field of science and technology.

scholarly journals Correlation between results of functional lordosis test and digital pelvic inclinometer

2019 ◽  
Vol 17 (3) ◽  
pp. 247-252
Author(s):  
K. Kolev ◽  
R. Tasheva
Keyword(s):  
Lumbar Lordosis ◽  
Preliminary Investigation ◽  
Critical Value ◽  
Test Methods ◽  
Mean Value ◽  
Functional Test ◽  
Healthy Children ◽  
Pelvic Inclination ◽  
The Mean ◽  
The Difference

THE AIM of this study is to precise the diagnostics of lumbar lordosis in children at primary classes through applying the Digital Pelvic Inclinometer and to correlate the results with the Functional Test. METHODS. The screening examination involved 132 children with the average age 8, 7 from the beginning classes in Sofia. The lumbar lordosis was assessed through the Fuctional Test in all children during the period April - June 2016.. The DPI was applied for preliminary investigation in 25 children of measuring left and rigth pelvic inclination and therefore – torsion. RESULTS. The lordosis test is negative in 8 children and 16 are with functional lordosis. The mean value of the test with DPI - left sided, for healthy children is 7.1 degrees, and in children with functional lordosis is 10.90. The difference of 3.80 is statistically significant due to the value of T-Student criterion (t) of 2.63 at a critical value of 2.07. CONCLUSION. The results showed the correlation between the Digital Pelvic Inclinometer Test and the Functional Lordosis Test. Тhis study confirmed that the applying of the Digital Pelvic Inclinometer give an opportunity to precise the diagnostics of lumbar lordosis in children.

scholarly journals PENERAPAN ALGORITMA K-MEDOIDS CLUSTERING UNTUK PENGELOMPOKKAN PENYEBARAN DIARE DI KOTA MEDAN (STUDI KASUS: KANTOR DINAS KESEHATAN KOTA MEDAN)

2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Bambang Riyanto
Keyword(s):  
Data Mining ◽  
Rainy Season ◽  
Clustering Algorithm ◽  
The Mean ◽  
The Difference ◽  
The City

The health office is in charge of instructing and registering diarrhea sufferers in each region, then the area will be evaluated which areas are most affected by diarrhea. And checking directly into the field revealed that the most basic cause was about the unclean environment such as trenches that were too much garbage, causing floods during the rainy season. The health office also encourages the community to always maintain environmental cleanliness and familiarize people to always wash their hands with soap before eating and after cleaning with simple things like this is expected to help reduce diarrhea sufferers in the city of Medan. K-Medoids Clustering is clustering algorithm which is similar to K-Means. The difference between these two algorithms is the K-Medoids or PAM algorithm uses the object as a representative (medoid) as the center of the cluster for each cluster, while the K-Means uses the mean (mean) as the center of the cluster.Keywords: Diarrhea, Service office, Data mining, K-Medoids Algorithm

scholarly journals Assessment of urban aerosol pollution over the Moscow megacity by the MAIAC aerosol product

2020 ◽  
Vol 13 (2) ◽  
pp. 877-891
Author(s):  
Ekaterina Y. Zhdanova ◽  
Natalia Y. Chubarova ◽  
Alexei I. Lyapustin
Keyword(s):  
Agricultural Development ◽  
Moscow Region ◽  
Pollutant Emissions ◽  
City Centre ◽  
Construction Sites ◽  
Aerosol Pollution ◽  
Aerosol Sources ◽  
The Mean ◽  
The Difference ◽  
The City

Abstract. We estimated the distribution of aerosol optical thickness (AOT) with a spatial resolution of 1 km over the Moscow megacity using the MAIAC aerosol product based on MODIS satellite data (Lyapustin et al., 2018) for the warm period of the year (May–September, 2001–2017). AERONET (Aerosol Robotic Network)-based validation of satellite estimates near the city centre at Moscow_MSU_MO and over the Moscow suburbs at Zvenigorod revealed that MAIAC AOT at 0.47 µm is in agreement with AERONET AOT though underestimated by 0.05–0.1 for AOT<1 and overestimated for smoke conditions with AOT>1. The MAIAC AOT biases were almost the same for the Moscow_MSU_MO and Zvenigorod AERONET sites, which indicated that the MAIAC algorithm effectively removed the effect of the bright urban surface in the city centre. For the ground-based measurements, the difference between annual median AOT at Moscow_MO_MSU and Zvenigorod (ΔAOT) varied within −0.002 to +0.03, with statistically significant positive bias for most years, and an average ΔAOT was about 0.02. According to the MAIAC dataset, the ΔAOT varied within ±0.01 and was not statistically significant. The ΔAOT started decreasing recently due to intensive urban development of the territory around Zvenigorod and the decrease in pollutant emissions in Moscow, which is mainly caused by the environmental regulations. According to the MAIAC dataset, the most pronounced spatial AOT differences over the territory of Moscow were observed at the 5 % quantile level, where they reached 0.05–0.06 over several locations and could be attributed to the stationary sources of aerosol pollution, for example, large areas of construction sites, aerosol pollution from roads and highways, or agriculture activities. The differences between the maximum and the mean AOT for different quantiles, except the 95 % quantile, within the Moscow region, were about 0.02–0.04, which could be attributed to the local aerosol sources. The application of the MAIAC algorithm over the whole Moscow region has revealed a decreasing AOT trend over the centre of Moscow and an increasing trend over the “New” Moscow territory which experienced an intensive build-up and agricultural development.

scholarly journals The Analysis of the Compassion Levels of the Classroom Teachers in Terms of Different Variables

2018 ◽  
Vol 6 (7) ◽  
pp. 63
Author(s):  
Murat Çalışoğlu
Keyword(s):  
Classroom Teachers ◽  
School Life ◽  
Significant Difference ◽  
Statistical Program ◽  
The Mean ◽  
The Difference ◽  
Data Frequency ◽  
The Village ◽  
The Relationship ◽  
The City

A teacher should be just and compassionate to be a good teacher. If there is weakness in these two, what a pity for those children who are trained by that teacher! Because one of the biggest diseases of this time is that mercilessness and unjustness are the raising trends. The purpose of this study is to analyze the mercy levels of the classroom teachers in terms of different variables. The study was conducted on 227 classroom teachers, 132 females and 95 males, working in Ağrı Province, Turkey in 2017.In the study, the Compassion Scale (CS) developed by Pommier (2011) and adapted to Turkish by Seher Akdeniz and Mehmet Engin Deniz was applied to the teachers. A statistical program was used to analyze the data. Frequency distribution to determine demographic characteristics, t test to analyze the relationship between compassion level and two independent variables, and ANOVA variant analysis to analyze the relationship between compassion level and variables more than two were used in the analyses of the data. The difference between the variables was interpreted on the basis of p0.05 significance level.According to the findings, it was determined that there is a significant difference between the level of compassion of the teachers and the gender, the settlement they work in, and their term of office. It was determined that the mean scores of male teachers were higher than the female teachers in the dimensions of indifference, disconnection and intercourse in the sub-dimensions of compassion level, the mean scores of the teachers working in the village in the sub-dimension of being aware of the sharing is higher than the teachers working in the city, and the mean scores of the teachers with 6-10 years of period of office is higher than those with 16 years of period of office in the sub-dimension of being aware of the sharing and the mean scores of the teachers with 5 years and below of period of office is higher than those with 6-10 years of period of office in the sub-dimension of disengagement.It can be recommended that increasing the compassion levels of the teachers in social and school life will have a positive effect on their relationships with students. It is also of higher importance to analyze other variables which are thought to positively affect compassion.

Pollution and Eutrophication in the Venice Lagoon

1987 ◽  
Vol 19 (5-6) ◽  
pp. 813-822 ◽  
Author(s):  
R. Cossu ◽  
E. de Fraja Frangipane ◽  
D. Degobbis ◽  
A. A. Orio ◽  
G. Andreottola
Keyword(s):  
Water Quality ◽  
Adriatic Sea ◽  
High Water ◽  
Venice Lagoon ◽  
Ammoniacal Nitrogen ◽  
Northern Adriatic Sea ◽  
Northern Adriatic ◽  
Algae Blooms ◽  
Open Sea ◽  
The City

To reduce the effect of the “high water”, which involves mainly the City of Venice, a project is underway to install barriers in the three port channels which connect the Venice lagoon to the Northern Adriatic Sea. To have a basis on which to gauge any observed effects in the water quality as a consequence of the reduction of the exchange of water between the lagoon and the open sea, a survey on the most polluted area of the lagoon was carried out over the period of a year. The following parameters were determined: pH, temperature, salinity, transparency, dissolved oxygen, ammoniacal nitrogen, orthophosphate, zinc and total coliforms. The results, compared to those obtained from previous studies, show that situation improved for ammoniacal nitrogen, zinc and coliforms and remained fairly constant for the other parameters. The inner zones of the lagoon are much more exposed to eutrophication as a consequence of a lower circulation of water and higher accumulation of nutrients. Release from sediments appears to play an important role in controlling the water quality in the shallow areas. Frequent algae blooms have been observed during spring and summer seasons. There is no evidence of an attenuation of eutrophic phenomena in recent years.

The Effect of Vocabulary Intervention on Text Comprehension: Who Benefits?

2019 ◽  
Vol 50 (4) ◽  
pp. 562-578 ◽  
Author(s):  
Dawna Duff
Keyword(s):  
Middle School ◽  
Reading Comprehension ◽  
Text Comprehension ◽  
Classroom Instruction ◽  
Vocabulary Instruction ◽  
Clinical Intervention ◽  
Vocabulary Knowledge ◽  
Vocabulary Intervention ◽  
The Mean ◽  
The Difference

Purpose Vocabulary intervention can improve comprehension of texts containing taught words, but it is unclear if all middle school readers get this benefit. This study tests 2 hypotheses about variables that predict response to vocabulary treatment on text comprehension: gains in vocabulary knowledge due to treatment and pretreatment reading comprehension scores. Method Students in Grade 6 ( N = 23) completed a 5-session intervention based on robust vocabulary instruction (RVI). Knowledge of the semantics of taught words was measured pre- and posttreatment. Participants then read 2 matched texts, 1 containing taught words (treated) and 1 not (untreated). Treated texts and taught word lists were counterbalanced across participants. The difference between text comprehension scores in treated and untreated conditions was taken as a measure of the effect of RVI on text comprehension. Results RVI resulted in significant gains in knowledge of taught words ( d RM = 2.26) and text comprehension ( d RM = 0.31). The extent of gains in vocabulary knowledge after vocabulary treatment did not predict the effect of RVI on comprehension of texts. However, untreated reading comprehension scores moderated the effect of the vocabulary treatment on text comprehension: Lower reading comprehension was associated with greater gains in text comprehension. Readers with comprehension scores below the mean experienced large gains in comprehension, but those with average/above average reading comprehension scores did not. Conclusion Vocabulary instruction had a larger effect on text comprehension for readers in Grade 6 who had lower untreated reading comprehension scores. In contrast, the amount that children learned about taught vocabulary did not predict the effect of vocabulary instruction on text comprehension. This has implications for the identification of 6th-grade students who would benefit from classroom instruction or clinical intervention targeting vocabulary knowledge.

Efficacy and Safety of Oral Ivermectin and Topical Permethrin in the Treatment of Scabies

2020 ◽  
Vol 33 (1) ◽  
pp. 41-47
Author(s):  
Mohsena Akhter ◽  
Ishrat Bhuiyan ◽  
Zulfiqer Hossain Khan ◽  
Mahfuza Akhter ◽  
Gulam Kazem Ali Ahmad ◽  
...  
Keyword(s):  
Skin Diseases ◽  
Close Contact ◽  
Randomized Study ◽  
Sarcoptes Scabiei ◽  
Efficacy And Safety ◽  
Common Skin ◽  
Group A ◽  
The Mean ◽  
The Difference ◽  
Group B

Background: Scabies is one of the most common skin diseases in our country. It is caused by the mite Sarcoptes scabiei var hominis, which is an ecto-parasite infesting the epidermis. Scabies is highly contagious. Prevalence is high in congested or densely populated areas. Individuals with close contact with an affected person should be treated with scabicidal which is available in both oral and topical formulations. The only oral but highly effective scabicidal known to date is Ivermectin. Amongst topical preparations, Permethrin 5 % cream is the treatment of choice. Objective: To evaluate the efficacy & safety of oral Ivermectin compared to topical Permethrin in the treatment of scabies. Methodology: This prospective, non-randomized study was conducted at the out-patient department of Dermatology and Venereology of Shaheed Suhrawardy Medical College & Hospital over a period of 6 months, from August 2016 to January 2017. The study population consisted of one hundred patients having scabies, enrolled according to inclusion criteria. They were divided into two groups. group A was subjected to oral Ivermectin and the group B to Permethrin 5% cream. Patients were followed up on day 7 and 14 for assessment of efficacy and safety. Result: The mean scoring with SD in group A (Ivermectin) and group B (Permethrin) were 8.26 ± 2.22 and 7.59 ± 2.01 respectively at the time of observation. The difference between the mean score of the two group is not significant (p=0.117) the mean scoring with SD in group A and group B were 4.54 ± 2.05 and 1.64 ± 1.84 respectively at 7thdays. The difference between the mean score of the two group is significant (p<0.001). The mean scoring with SD in group A and group B were 2.68± 2.35 and .36± 1.10 respectively at 14th day difference between the mean score of the group is significant (p<0.001). Conclusion: Topical application of permethrin 5% cream is more effective and safer than oral Ivermectin in the treatment of scabies. TAJ 2020; 33(1): 41-47

EFFECTS OF SYNTHETIC LH/FSH-RELEASING HORMONE (LRH) ON PLASMA LH AND FSH IN AMENORRHOEIC WOMEN

1974 ◽  
Vol 75 (4) ◽  
pp. 647-652 ◽  
Author(s):  
G. Rannevik ◽  
J. Thorell
Keyword(s):  
Urinary Excretion ◽  
Initial Response ◽  
Releasing Hormone ◽  
The Mean ◽  
The Difference ◽  
Serial Measurements

ABSTRACT Eight amenorrhoeic women were given 100 μg synthetic LRH (Hoechst) iv and im, respectively, at an interval of 2 weeks. Four of the women received the iv injection first and four the im injection. The urinary excretion of oestrogens and pregnanediol was low and unaltered throughout the test weeks. The effects of LRH were compared by serial measurements of the plasma LH and FSH during 8 h. The initial response of LH for up to 25 min and that of FSH for up to 60 min were equal whether LRH was given iv or im. The difference appeared later. Four hours after the injection the mean increase of LH to iv injection was 0.5 ng/ml (N. S.), while that to im injection was 1.9 ng/ml (P < 0.01). The corresponding values for FSH were 1.3 (P < 0.05) and 3.2 (P < 0.001). The effect of LRH administration im was thus found to be larger and more prolonged.

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