scholarly journals KEMAMPUAN TANAMAN APU- APU (Pistia stratiotes L.) DALAM MENURUNKAN KADAR LOGAM BERAT NIKEL (Ni) LIMBAH CAIR

2017 ◽  
Vol 15 (1) ◽  
Author(s):  
Lestari Dwi Utami ◽  
Narwati . ◽  
Umi Rahayu
Keyword(s):  
Heavy Metal ◽  
Contact Time ◽  
Statistical Test ◽  
Pistia Stratiotes ◽  
Control Group ◽  
Contact Duration ◽  
Time Duration ◽  
Water Plant ◽  
Test Result ◽  
Level Reduction

ABSTRACTResearch on reduction of Nickel (Ni) heavy metal in wastewater by using a water plant lettuce (Pistiastratiotes L.) was conducted with the aim of knowing the level of Ni reduction in wastewater after the plants aregiven water plant lettuce (Pistia stratiotes L.). The technique used in processing wastewater of the metal platingis phytoremediation.This study was pure experiment with pretest-posttest design with control group used completerandomized design (CRD). This study was conducted in December to June, 2016.The results showed that the level of Ni in wastewater decreased after 1 day, 3 day and 6 day treatmentwith water plant lettuce. From the statistical test result, the reduction of Ni was significant with 5 plants by p =0.023 < α. Based on the contact time duration, the result of statistical test was p = 0.000 < α. The more thenumber of plants used, the greater the reduction of Nickel level. The longer the contact time of the water plantwith wastewater, the greater the reduction of Nickel level in wastewater.For further study, it is suggested to use plant that is hyper tolerant against contaminants and usedmore plants to proceed wastewater and more comparable with the level of Ni metal contained in wastewatermetal plating.Keywords : Nickel level reduction, water plant lettuce (Pistia stratiotes L.),contact duration, phytoremediation.

scholarly journals Musik Langgam Jawa Terhadap Kecemasan Pada Pasien Pre Sectio Caesarea

2021 ◽  
Vol 7 (1) ◽  
pp. 27
Author(s):  
Siti Sadiah ◽  
Happy Dwi Aprilina
Keyword(s):  
Standard Deviation ◽  
Statistical Test ◽  
Maternal Anxiety ◽  
Sectio Caesarea ◽  
Control Group ◽  
P Value ◽  
Sampling Techniques ◽  
Control Group Design ◽  
Group Design ◽  
Test Result

Caesarean delivery or sectio ceaserea (SC) is a surgical process to give birth to a fetus through incisions in the abdominal and uterine walls. This action generally causes anxiety in mothers who will undergo childbirth. Objective: Knowing the effect of Javanese Langgam music on anxiety in pre-sectio caesarea patients. A pre-experimental design with one group pre and posttes without control group design. The study used 46 accidental sampling techniques. Data analysis with paired t test. 39 respondents (84,8%) were not in the category of risky ages, 21 respondents (45,7%) were secondary graduates, 21 respondents (76,1%) were housewives, and 27 respondents (58,7%) were primipara parity. The average patient’s anxiety was 19,04 with a standard deviation of 3,25 before Javanese Langgam style music and it was 11,83 with a standard deviation of 2,93 qfter the treatment. Based on the statistical test result, it obtained p-value 0.05, there is an effect of Javanese music style a ward the anxiety in patiens with pre section caesarea p-value 0.000. Conclusion: Javanese Langgam music effect on anxiety in pre-sectio caesarea patients in Banyumas Regional Hospital with p-value 0.000. Hand music can be a powerful mood regulator that can cause relaxation and reduce maternal anxiety pre CS.  Keywords: Javanese style, anxiety, pre sectio caesarea

scholarly journals Investigation of Lead Removal from Drinking Water Using Different Sorbents

2020 ◽  
Vol 27 (1) ◽  
pp. 67-82
Author(s):  
Ramunė Albrektienė ◽  
Dainius Paliulis
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Contact Time ◽  
Chemical Element ◽  
Sorption Process ◽  
Polluted Water ◽  
Lead Removal ◽  
Contact Duration ◽  
Test Water ◽  
Effective Sorbent

AbstractLead is a heavy metal with strong toxic properties. This chemical element is found in wastewater and sometimes in drinking water. The article deals with the removal of lead(II) ions from polluted water using a sorption process to determine the most effective sorbent for the removal of lead(II) ions. Three sorbents were used in the research: clay, sapropel, and iron sludge. All three sorbents investigated reduce the concentration of lead(II) ions in water: clay efficiency was of 65.7–90 %, sapropel of 94.3–100 %, and iron sludge of 84.3–97 %, depending on sorbent type and contact duration. The research has shown that the most effective way to remove lead(II) ions from the test water is sapropel. Using different amounts of sapropel (1, 2, 3, 4, 5, 6 g/dm3 and 0.1, 0.2, 0.4, 0.5, 0.6, 0.8 g/dm3) and different duration of contact (30, 60, 90, 120 and 150 minutes), the concentration of lead(II) ions in the test water after purification did not exceed the permissible values for drinking water (10 μg/dm3), so that the lowest sapropel content of 0.1 g/dm3 can be used for sorption. Lead(II) ions are most effectively removed when contact time is 30 min.

scholarly journals EFFECT OF ZOOM MEETING ON E-LEARNING IN STUDENT SPEAKING SKILL

2021 ◽  
Vol 6 (1) ◽  
pp. 20-26
Author(s):  
Fitriani Guci ◽  
Leroy Holman Siahaan
Keyword(s):  
Quantitative Research ◽  
Ninth Grade ◽  
Statistical Test ◽  
Control Group ◽  
Test Results ◽  
Test Technique ◽  
Reliability Level ◽  
E Learning ◽  
Speaking Skill ◽  
Test Result

This research aims to find out the effect of zoom meeting on e-learning in student speaking skill at ninth grade of SMPN 35 Bekasi.  The use of zoom meetings supports the learning process in the covid-19 pandemic.  This research was conducted in July 2021. The analysis used in quantitative research is experimental design. This research sample is 40 students in grade ninth with divided into two groups, namely a control group with a total of 20 students and an experiment group with a total of 20 students. Data collection is carried out with a test technique system to get the results of students' speaking skills. Statistical test using SPSS 22. The results showed that there was a difference between the control group and the experiment group. This can be proven by; 1. Instrument test results with a reliability level of 0.800 which means that the results are valid. 2. 2. the test result t is a significance score (2-tailed) from the test result of 0.00 < 0.05 so that a sig score of 0.00 is seen to show the effect of using zoom meetings in speech ability in SMPN 35 Bekasi.

scholarly journals TINGKAT NYERI PEMASANGAN KATETER MENGGUNAKAN JELI OLES DAN JELI YANG DIMASUKKAN URETHRA

2016 ◽  
Vol 11 (2) ◽  
pp. 168-176
Author(s):  
Diyah Candra Anita, dkk
Keyword(s):  
Research Design ◽  
Statistical Test ◽  
Control Group ◽  
Pain Response ◽  
Inpatient Ward ◽  
Adult Inpatient ◽  
Test Result ◽  
Pain Catheter

This research aimed to show the effectiveness of catheters in men using the included urethral gel with gel applied to the catheter to the client pain response in adult inpatient ward 3 class in PKU Muhammadiyah Yogyakarta. The research design used Quasi-eksperiment with posttest only control group. Mann Whitney statistical test result p = 0.275 thus concluded there were no significant differences in the level of pain between groups gel smeared with gel group entered the urethra.Keywords: the level of pain catheter, rab gel, gel included urethra

Use of agro-waste (Musa paradisiaca peels) as a sustainable biosorbent for toxic metal ions removal from contaminated water

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Contact Time ◽  
Metal Ion ◽  
Equilibrium Concentration ◽  
Ion Concentration ◽  
Contaminated Water ◽  
Musa Paradisiaca ◽  
Percentage Removal ◽  
Adsorbent Dose

A study of removal of heavy metal ions from heavy metal contaminated water using agro-waste was carried out with Musa paradisiaca peels as test adsorbent. The study was carried by adding known quantities of lead (II) ions and cadmium (II) ions each and respectively into specific volume of water and adding specific dose of the test adsorbent into the heavy metal ion solution, and the mixture was agitated for a specific period of time and then the concentration of the metal ion remaining in the solution was determined with Perkin Elmer Atomic absorption spectrophotometer model 2380. The effect of contact time, initial adsorbate concentration, adsorbent dose, pH and temperature were considered. From the effect of contact time results equilibrium concentration was established at 60minutes. The percentage removal of these metal ions studied, were all above 90%. Adsorption and percentage removal of Pb2+ and Cd2+ from their aqueous solutions were affected by change in initial metal ion concentration, adsorbent dose pH and temperature. Adsorption isotherm studies confirmed the adsorption of the metal ions on the test adsorbent with good mathematical fits into Langmuir and Freundlich adsorption isotherms. Regression correlation (R2) values of the isotherm plots are all positive (&gt;0.9), which suggests too, that the adsorption fitted into the isotherms considered.

Comparing the Genetic Detox Ability and Heavy Metal Burden in a Cohort of Samples of Egyptian Children and those with Autistic Spectrum Disorder

2019 ◽  
Author(s):  
Blaurock-Busch E
Keyword(s):  
Heavy Metal ◽  
Autism Spectrum ◽  
Control Group ◽  
Potentially Toxic Metals ◽  
Gstt1 Null Genotype ◽  
Egyptian Children ◽  
Glutathione S Transferases ◽  
Metal Burden ◽  
Detoxification Pathway

The heavy metal burden of patients with Autism spectrum disorders (ASD) has been widely discussed [1-5]. Present knowledge suggests that ASD patients, compared to ‘normal’s’ show a greater metal burden, which may be a cause of the ASD pathogenesis, possibly due to a limited detoxification potential. We thus aimed to evaluate if the metal burden of ASD children is due to comprised detoxification ability, and if missing of enzymes such as the glutathione-S-transferases provide an explanation, or if additional factors play a role. Genetically, we noticed a slight difference in the detoxification ability of the ASD group compared to the Control group. In the ASD group, carrier of the genotype GSTT1 null genotype (i.e. the homozygous loss) are 1.7 times more common as in the Control group and the GSTT1 allele is more frequent in the ASD patient collective. These findings are not statistically significant but indicate a trend. In addition, our data indicates that levels of potentially toxic metals in blood and hair of both groups demonstrate a similar immediate and long-term exposure. However, 36% of the ASD group showed signs of zinc deficiency compared to 11% of the Control group and this points towards inefficiency of the Phase I detoxification pathway. More research is needed to explore the role of other elements in the detoxification pathway.

scholarly journals The Relation between Physiological Parameters and Colour Modifications in Text Background and Overlay during Reading in Children with and without Dyslexia

2021 ◽  
Vol 11 (5) ◽  
pp. 539
Author(s):  
Tamara Jakovljević ◽  
Milica M. Janković ◽  
Andrej M. Savić ◽  
Ivan Soldatović ◽  
Gordana Čolić ◽  
...  
Keyword(s):  
Fixation Duration ◽  
Physiological Parameters ◽  
School Age Children ◽  
Control Group ◽  
School Age ◽  
Time Duration ◽  
The Relationship ◽  
White Colour ◽  
Saccade Duration ◽  
40 Hz

Reading is one of the essential processes during the maturation of an individual. It is estimated that 5–10% of school-age children are affected by dyslexia, the reading disorder characterised by difficulties in the accuracy or fluency of word recognition. There are many studies which have reported that coloured overlays and background could improve the reading process, especially in children with reading disorders. As dyslexia has neurobiological origins, the aim of the present research was to understand the relationship between physiological parameters and colour modifications in the text and background during reading in children with and without dyslexia. We have measured differences in electroencephalography (EEG), heart rate variability (HRV), electrodermal activities (EDA) and eye movements of the 36 school-age (from 8 to 12 years old) children (18 with dyslexia and 18 of control group) during the reading task in 13 combinations of background and overlay colours. Our findings showed that the dyslexic children have longer reading duration, fixation count, fixation duration average, fixation duration total, and longer saccade count, saccade duration total, and saccade duration average while reading on white and coloured background/overlay. It was found that the turquoise background, turquoise overlay, and yellow background colours are beneficial for dyslexic readers, as they achieved the shortest time duration of the reading tasks when these colours were used. Additionally, dyslexic children have higher values of beta (15–40 Hz) and the broadband EEG (0.5–40 Hz) power while reading in one particular colour (purple), as well as increasing theta range power while reading with the purple overlay. We have observed no significant differences between HRV parameters on white colour, except for single colours (purple, turquoise overlay, and yellow overlay) where the control group showed higher values for mean HR, while dyslexic children scored higher with mean RR. Regarding EDA measure, we found systematically lower values in children with dyslexia in comparison to the control group. Based on the present results, we can conclude that both pastel and intense background/overlays are beneficial for reading of both groups and all sensor modalities could be used to better understand the neurophysiological origins in dyslexic children.

scholarly journals Improved Inpatient Care through Greater Patient–Doctor Contact under the Hospitalist Management Approach: A Real-Time Assessment

2021 ◽  
Vol 18 (11) ◽  
pp. 5718
Author(s):  
Wonjeong Chae ◽  
Dong-Woo Choi ◽  
Eun-Cheol Park ◽  
Sung-In Jang
Keyword(s):  
Contact Time ◽  
Inpatient Care ◽  
Average Frequency ◽  
Care Quality ◽  
Management Approach ◽  
Regression Analyses ◽  
Contact Duration ◽  
Inpatient Ward ◽  
The Difference ◽  
Attending Physician

Objective: To examine the difference between hospitalist and non-hospitalist frequency of patient–doctor contact, duration of contact, cumulative contact time, and the amount of time taken by the doctor to resolve an issue in response to a medical call. Research Design and Measures: Data from 18 facilities and 36 wards (18 hospitalist wards and 18 non-hospitalist wards) were collected. The patient–doctor contact slip and medical call response slips were given to each inpatient ward to record. A total of 28,926 contacts occurred with 2990 patients, and a total of 8435 medical call responses occurred with 3329 patients. Multivariate logistic regression analyses and regression analyses were used for statistical analyses. Results: The average frequency of patient–doctor contact during a hospital stay was 10.0 times per patient for hospitalist patients. Using regression analyses, hospitalist patients had more contact with the attending physician (β = 5.6, standard error (SE) = 0.28, p < 0.0001). Based on cumulative contact time, hospitalists spent significantly more time with the patient (β = 32.29, SE = 1.54, p < 0.0001). After a medical call to resolve the issue, doctors who took longer than 10 min were 4.14 times (95% CI 3.15–5.44) and those who took longer than 30 min were 4.96 times (95% CI 2.75–8.95) more likely to be non-hospitalists than hospitalists. Conclusion: This study found that hospitalists devoted more time to having frequent encounters with patients. Therefore, inpatient care by a hospitalist who manages inpatient care from admission to discharge could improve the care quality.

Perbedaan Pengetahuan Remaja Putri Sebelum Dan Sesudah Diberikan Penyuluhan Tentang Fluor Albus Di SMP Negeri 3 Penebel

2019 ◽  
Vol 2 (1) ◽  
pp. 18-23
Author(s):  
Kadek Sri Ariyanti ◽  
Rini Winangsih ◽  
Desak Made Firsia Sastra Putri
Keyword(s):  
Reproductive Health ◽  
Adolescent Girls ◽  
Young Women ◽  
Random Sampling ◽  
Statistical Test ◽  
Wilcoxon Test ◽  
Average Score ◽  
Average Increase ◽  
Before And After ◽  
Test Result

Background and purpose: Adolescence is a period of transition from childhood to adulthood. The problems facing adolescents are often related to reproductive health, one of which is fluorine albus. Many teenagers do not care about the fluoride of albus despite the enormous impact on women's reproductive health. One reason is the lack of knowledge about fluorine albus. Based on KISARA data there are 90.91% of girls in Denpasar City do not know the cause of fluorine albus. The purpose of this study was to determine differences in knowledge of young women before and after being given counseling about fluor albus. Method: The research design used was pre-experimental with one group pretest posttest design using 70 respondents taken by stratified random sampling. The results showed that the average score of adolescent girls' knowledge about fluor albus before being given counseling was 11.56 and after counseling was 14.23. There was an average increase in knowledge of 2.67. Results: Statistical test result using wilcoxon test get value p = 0.000 so that hypothesis accepted. Conculusion: It can be concluded that there is difference of adolescent knowledge about fluorine albus before and after given counseling.

scholarly journals Factors Related to the Incidence of Typhoid Fever in the Work Area Health Office of Jayawijaya Regency

2021 ◽  
Vol 5 (1) ◽  
pp. 49-56
Author(s):  
Rahmad Suryawan Ura ◽  
Yuly Peristiowati
Keyword(s):  
Typhoid Fever ◽  
Control Group ◽  
P Value ◽  
Case Group ◽  
District Health Office ◽  
District Health ◽  
Chi Square ◽  
Work Area ◽  
Chi Square Test ◽  
Test Result

Typhoid fever is a disease that is prone to occur in Indonesia, because of the characteristics of the climate that is very prone to diseases related to the seasons. The purpose of this study is to analyze factors related to the incidence of typhoid fever in the Working Area of the Jayawijaya District Health Office. The research design used is quantitative analytics method using quantitative data. The type of approach used is case control. The population is 74 patients with typhoid fever. The large sample taken as many as 37 respondents, with a large comparison of samples between the number of respondents in the case group is 37 respondents, and 37 respondents as a control group, so the total number of samples is 74 respondents. Sampling techniques used in this study is a simple random sampling technique. Based on the results of the study, it is known that there is no relationship between age and the incidence of typhoid fever in the Working Area of the Jayawijaya District Health Office. Chi-square test result obtained p-Value Sig (0.445) > α (0.05). While it is known that there is a relationship between the level of knowledge, the level of education, hygiene of individual respondents with the incidence of typhoid fever in the Work Area of the Health Office of Jayawijaya Regency. Chi-square test results obtained p- value (0.000) < α (0.05) and environmental sanitation with the incidence of Typhoid Fever in the Work Area of the Jayawijaya District Health Office. Chi-square test result obtained p-value (0.001) < α (0.05). Based on the results of the study is expected to increase kinship with patients as well as by providing health services visits to the patient's home.

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