scholarly journals Penggunaan Larutan Pepaya (Carica papaya) sebagai Larvasida Nyamuk Aedes aegypty

2019 ◽  
Vol 7 (2) ◽  
pp. 59
Author(s):  
Restu Prastiwi ◽  
Anita Dewi Moelyaningrum ◽  
Prehatin T. N
Keyword(s):  
Experimental Study ◽  
Aedes Aegypti ◽  
Carica Papaya ◽  
Larval Growth ◽  
Hemorrhagic Fever ◽  
The Body ◽  
The Other ◽  
Control Group ◽  
Significant Difference ◽  
The Impact

<p><em>Aedes aegypti mosquito is a type of mosquito that can carry dengue virus that causes dengue fever. This mosquito has the potential to transmit dengue hemorrhagic fever (DHF). DHF is a disease characterized by sudden fever, bleeding both on the skin and in other parts of the body and can cause shock and death. So in order to reduce the impact of the disease, there are several ways that must be taken. One way of controlling that is done to reduce the population of aedes aegypti mosquitoes is by reducing larval growth by using a solution of papaya leaves as larvacide. Papaya leaves contain tannins of 0.12%. So it is possible to kill larvae. The purpose of this study was to analyze the differences in the average mortality of untreated instar 1 aedes aegypti larvae and treated with a solution of distilled papaya leaves, amounting to 0ml / 100ml (X0), 1ml / 100ml (X1), 2ml / 100ml (2) , 4ml / 100m (X3) with observations every 6 hours for 24 hours. This study is a true experimental study with the presentation of the data analyzed using the kruskal wallis test on spss. The results showed that there were differences between the control group and the treatment group (p &lt;0.05). The most significant difference occurred in the 4ml / 100ml (X3) group which had the highest mortality than the other groups. So the higher the concentration and the longer the duration of exposure, the higher the mortality rate in the larvae. </em></p>

scholarly journals 262 Heat stress alleviation and dynamic temperature measurement for growing beef cattle

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 192-193
Author(s):  
Sheyenne M Augenstein ◽  
Meredith A Harrison ◽  
Sarah C Klopatek ◽  
James W Oltjen
Keyword(s):  
Heat Stress ◽  
Body Temperature ◽  
Beef Cattle ◽  
Ambient Temperature ◽  
The Body ◽  
Control Group ◽  
Temperature Threshold ◽  
Sprinkler Systems ◽  
Significant Difference ◽  
The Impact

Abstract Heat stress continues to be a challenge for feedlot producers, forcing physiological adaptations in beef cattle that can have a negative impact on gain and carcass quality. Feedlots may want to incorporate systems that aid in mitigating heat stress, including sprinkler systems, which are commonly found on dairies. The objective of this study was to determine the impact of sprinkler systems on the body temperature of growing feedlot steers applied at three different temperature thresholds. Thirty-two Angus-cross beef steers (298 ± 15 SD days of age) were randomly assigned to 8 pens. Treatments were assigned to pens according to location to avoid drainage issues, with one replicate located on the eastern side of the feedlot and the other replicate located on the western side. Treatments including no sprinklers (C), high temperature threshold sprinklers (HT), moderate temperature threshold sprinklers (MT) or low temperature threshold sprinklers (LT). Sprinklers (flow rate: 5.11 L/min) were activated at 33°C (HT), 28°C (MT), and 23°C (LT) for five minutes at corresponding temperatures every thirty minutes for 57 days. Rectal temperature of steers in their pens was measured in the morning (0800 h), afternoon (1500 h), and evening (1900 h) three days each week (Monday, Wednesday, Friday) for a total of 19 experimental days. Weather measurements, including ambient temperature, windspeed, humidity and solar radiation were recorded at each measurement time along with the maximum values for each day. The change in body temperature (ΔBT) between the morning and afternoon was affected by ambient temperature (P &lt; 0.01); MT (P = 0.02) and LT (P = 0.02) – different than C. There was no significant difference between sprinkler treatments and the control group (P &gt; 0.05). Day affected (ΔBT) between the morning and afternoon (P &lt; 0.05) and the afternoon and evening (P &lt; 0.05). When averaged by day, the control group was significantly higher than MT (P = 0.04) between the morning and afternoon. The control group was also significantly higher than LT between the morning and afternoon (P = 0.03) and the afternoon and evening (P &lt; 0.01). The change in steer body temperature between afternoon and morning was affected by ambient temperature, and averaged across days, lowering the temperature threshold for sprinkling decreased in the afternoon and evening body temperature increase in steers.

Effects of Ascogregarina culicis (Eugregarinorida: Lecudinidae) on Mosquito Size and Dengue Virus Infection in Aedes aegypti (Diptera: Culicidae)

2020 ◽  
Author(s):  
Panpim Thongsripong ◽  
Dawn M Wesson
Keyword(s):  
Virus Infection ◽  
Aedes Aegypti ◽  
Dengue Virus ◽  
Infection Rate ◽  
Wing Length ◽  
The Body ◽  
Global Public Health ◽  
Dengue Virus Infection ◽  
Significant Difference ◽  
The Impact

Abstract Dengue virus infection, transmitted via mosquito bites, poses a substantial risk to global public health. Studies suggest that the mosquito’s microbial community can profoundly influence vector-borne pathogen transmissions, including dengue virus. Ascogregarina culicis (Ross) of the phylum Apicomplexa is among the most common parasites of Aedes aegypti (Linnaeus), the principal vector of dengue. Despite a high prevalence worldwide, including in the areas where dengue is endemic, the impact of A. culicis on Ae. aegypti vector competence for dengue virus is unknown. This study aimed to investigate the effects of A. culicis infection on mosquito size and fitness, as measured by wing length, and the susceptibility to dengue virus infection in Ae. aegypti. Our results showed that there was no statistically significant difference in wing lengths between Ae. aegypti infected and not infected with A. culicis. Furthermore, A. culicis infection did not significantly affect dengue virus infection or disseminated infection rate. However, there was a significant association between shorter wings and higher dengue virus infection rate, whereby a 0.1-mm increase in wing length decreased the odds of the mosquito being infected by 32%. Thus, based on our result, A. culicis infection does not influence the body size and dengue virus infection in Ae. aegypti. This study helps to shed light on a common but neglected eukaryotic mosquito parasite.

scholarly journals Relationship between body weight and leptin concentrations in mink dams and the birth parameters of kits

2016 ◽  
Vol 72 (12) ◽  
pp. 755-759 ◽  
Author(s):  
Monika Bryl ◽  
Hanna Bis-Wencel ◽  
Brygida Ślaska ◽  
Bożena Nowakowicz-Dębek ◽  
Zbigniew Bełkot ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Condition ◽  
Scoring System ◽  
The Body ◽  
The Other ◽  
Blood Samples ◽  
Serum Leptin ◽  
Significant Difference ◽  
Analysis Of Results ◽  
The Impact

The aim of this study was to assess the impact of the leptin concentration and body weight of mink females on the birth parameters of their kits. Blood samples were collected 3 times during preparation for reproduction, 7±2 days before mating. Total leptin concentration in serum was measured using commercial RIA kits (Millipore, St. Charles, Missouri USA). Research was conducted on 20 clinically healthy scanbrown female minks (Neovison Vison) aged 2-3 years. To evaluate their body condition, the females were divided into two groups based on the BCS scoring system. In the first group, referred to as BCS 2, lean females were included, and the second group (BCS 4) consisted of obese females. In mink dams belonging to BCS 2, the average leptin values were one-fourth of those in the BCS 4 group. The results obtained indicate the influence of the body mass of minks during preparation for reproduction on serum leptin concentration. The results of the Mann-Whitney U test showed a statistically significant difference between weights and leptin concentrations in groups BCS 2 and BCS 4. Among the other traits, such differences were not found. The analysis of results obtained in the two mink groups did not reveal a clear relationship between leptin in the serum of mothers before mating and the birth parameters of their kits.

scholarly journals Young and Old Sugar Apple (Annona squamosa Linn) Leaf Extracts As an Aedes aegypti Larva Insecticide

2019 ◽  
Author(s):  
Abdul Khair ◽  
Noraida Noraida
Keyword(s):  
Aedes Aegypti ◽  
Leaf Extract ◽  
Hemorrhagic Fever ◽  
Control Group ◽  
Leaf Extracts ◽  
Control Group Design ◽  
Vector Borne Diseases ◽  
Apple Leaves ◽  
Significant Difference ◽  
Vector Borne

Vector-borne diseases are still a health problem in some tropical countries. One vector-borne disease is Dengue Hemorrhagic Fever (DHF). DHF never decreases and even tends to continue to increase, and many cause deaths in children, 90% of them attack children under 15 years. DHF cases in 2018 amounted to 65,602 cases, with 467 deaths (CFR = 0.71%). The behavior of holding water in various places such as tubs and tendons indirectly creates a breeding place for Aedes aegypti mosquitoes. The use of chemicals as insecticides can cause the death of non-target animals, environmental pollution, and the occurrence of vector resistance to insecticides. Therefore it is necessary to do other methods including the use of vegetable insecticides. Sugar apple leaves can be used to kill Aedes aegypti larvae. Sugar apple leaves will obtain throughout the year. The purpose of this study is to know the ability of young and old sugar apple leaves to kill Aedes aegypti larvae. This type of research is a posttest only control group design. The study sample was part of the Aedes aegypti larvae on the final instar III. The experiment to kill Aedes aegypti larvae use two types of sugar apple leaf extract, namely young and old sugar apple leaves with nine treatments four replications. Each treatment consisted of 25 larvae. The research results show There was no significant difference in the number of dead larvae using either extracts from young sugar apple leaves or old sugar apple leaves. LC90 of sugar apple leaf extract was between 0.05632 to 0.08324% and the effective residual age at LC90 (0.06568%) with the death of Aedes aegypti larvae was 92% over 24 hours (1 day).

scholarly journals Uji Potensi Ekstrak Daun Pepaya (Carica papaya linn) sebagai Larvasida terhadap Larva Aedes sp. Di Manado

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Nazzirah A. Ammari ◽  
Greta J. P. Wahongan ◽  
Janno B. B. Bernadus
Keyword(s):  
Mortality Rate ◽  
Aedes Aegypti ◽  
Experimental Method ◽  
Dengue Hemorrhagic Fever ◽  
Leaf Extract ◽  
Carica Papaya ◽  
Hemorrhagic Fever ◽  
Control Group ◽  
Extract Concentration ◽  
Positive Groups

Abstract: Papaya leaf extract as a natural larvicide can be used as an alternative to control resistant Aedes aegypti populations. The benefits of controlling the dengue hemorrhagic fever (DHF) vektor are reducing the level of morbidity, mortality and suffering of individuals and their families. This research was conducted with a simple laboratory experimental method. Used papaya leaves extract and larvae of Aedes sp. instar III and IV taken in water float. This study used 100 larvae divided into 2 groups with positive groups, namely the concentration of 5gr, 10 gr, 15 gr and 20 gr and a control group that only used aquadesh which was repeated twice. This study aimed to determine the potential of papaya leaf extract (Carica Papaya Linn) as a larvicide against larvae of Aedes sp. in Manado. In conclusion, papaya leaf extract (Carica Papaya Linn) has potential as a larvicide against Aedes sp. Larvae. where the higher the extract concentration given, so the mortality rate of Aedes sp. larvae higher.Keyword :  Papaya Leaves (Carica Papaya Linn), Larvacides, Larvae Aedes sp.  Abstrak: Ekstrak daun pepaya sebagai larvasida alami dapat digunakan sebagai salah satu alternatif untuk mengendalikan populasi Aedes aegypti yang telah resisten. Manfaat dari pengendalian vektor penyakit demam berdarah dengue (DBD) adalah mengurangi tingkat kesakitan, kematian, dan penderitaan individu beserta keluarganya. Tujuan penelitian ini untuk mengetahui potensi ekstrak daun papaya (Carica Papaya Linn) sebagai larvasida terhadap larva Aedes sp. di Manado. Penelitian ini dilakukan dengan  metode eksperimental laboratoris sederhana.  Menggunakan ekstrak daun pepaya dan larva Aedes sp. instar III dan IV yang di ambil di penampungan air. Penelitian ini menggunakan 100 ekor larva yang terbagi atas 2 kelompok dengan kelompok uji yaitu konsentrasi 5gr, 10 gr, 15 gr dan 20 gr serta kelompok control yang hanya menggunakan aquadesh  yang diulangi sebanyak dua kali percobaan. Hasil nilai p yang didapat dari uji Kruskall Wallis memiliki nilai p < 0.05, hal ini menunjukkan bahwa terdapat perbedaan tingkat kematian larva Aedes sp. setelah 6 jam, 12 jam, 18 jam dan 24 jam pada berbagai konsentrasi perlakuan. Sebagai simpulan, ekstrak daun papaya (Carica Papaya Linn) memiliki potensi sebagai  larvasida terhadap larva Aedes sp. dimana semakin tinggi konsentrasi ekstrak yang diberikan maka semakin tinggi pula tingkat kematian larva Aedes sp. Kata Kunci : Daun Pepaya (Carica Papaya Linn), Larvasida, Larva Aedes sp.

scholarly journals A study of voice quality in obese Egyptian children

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Asmaa Abdel Hamid ◽  
Hend Soliman ◽  
Rasha Abdelhalim
Keyword(s):  
Voice Quality ◽  
Cross Sectional Study ◽  
The Body ◽  
Voice Disorder ◽  
Control Group ◽  
Healthy Children ◽  
Cross Sectional ◽  
Egyptian Children ◽  
Significant Difference ◽  
The Impact

Abstract Background Obesity is considered a health problem that affects many systems of the body among which the respiration and voice. The objective of the study was to analyze the impact of obesity in children on quality of their voice. Thirty obese children were included in this cross-sectional study and compared to 30 age- and sex-matched healthy children as a control group. Voice of cases and controls were assessed subjectively by auditory perceptual assessment and objectively by studying acoustic parameters using Computerized Speech Lab. Flexible laryngoscopy was done for cases with dysphonia. Results Dysphonia perceived in 60% of cases, voice analysis revealed increased jitter and noise to harmonic ratio with significant difference than controls. Conclusion The voice of children with morbid obesity reveals significant modifications pertaining to vocal characteristics in comparison to non-obese persons, so voice hygiene and voice therapy could be added to their therapy program as prophylactic or therapeutic management of voice disorder.

scholarly journals BIOINSECTICIDE AGAINST AEDES AEGYPTI MOSQUITOES DERIVED FROM LEMONGRASS (CYMBOPOGON CITRATUS) LEAVES ETHANOL EXTRACT

2021 ◽  
Vol 20 (1) ◽  
pp. 18-25
Author(s):  
Jennifer Wiranatha ◽  
Robby Makimian ◽  
Rita Dewi
Keyword(s):  
Aedes Aegypti ◽  
Dengue Hemorrhagic Fever ◽  
Ethanol Extract ◽  
Hemorrhagic Fever ◽  
Lethal Effect ◽  
Negative Control ◽  
Control Group ◽  
Cymbopogon Citratus ◽  
Chemical Insecticide ◽  
Significant Difference

Introduction: Dengue hemorrhagic fever is one of the most common infectious diseases in Indonesia. The vector of this disease is Aedes aegypti (Ae. aegypti). Dengue hemorrhagic fever can be controlled by a few measures, one of them is using insecticide. However, frequent use of chemical insecticide could lead to resistance and is harmful to non-target organisms. One of the solutions for this problem is the use of bioinsecticide derived from lemongrass (Cymbopogon citratus or C. citratus) leaves extract. Methods: The design of this study is true experimental post-test only control group. The population used are adult Ae. aegypti mosquitoes. For each experiment, 10 mosquitoes are required and given the extract of C. citratus in 2%, 10%, and 20% concentrations, and negative control respectively.The lethal effect of the extract is observed in 10, 30, 60 minutes and 6, 12, 18, 24 hours. Results: There is a significant difference in the lethal effect of Ae. aegypti mosquitoes with variations in duration of exposure to the C. citratus leaves extract (p = 0.007), but no significant difference with variations in extract concentration given (p = 0.281). Conclusion: C. citratus leaves extract has bioinsecticidal effect on Ae. aegypti mosquitoes. The optimal result of mosquito mortality is achieved by using the extract in 20% concentration with duration of 12 hours.

scholarly journals Examining the impact of musculus palmaris longus on serve speed and on certain motoric properties in tennis players

2019 ◽  
Vol 23 (4) ◽  
pp. 202-208
Author(s):  
M. Soyal ◽  
M. Kaya ◽  
N.M. Çelik
Keyword(s):  
The Body ◽  
Control Group ◽  
Average Height ◽  
Wrist Flexion ◽  
Tennis Players ◽  
Palmaris Longus ◽  
Significant Difference ◽  
The Impact ◽  
Flexion Strength ◽  
Experimental Group

Purpose: The aim of this study is to examine the impacts of existence or absence of musculus palmaris longus (MPL) on serve speed and certain motoric properties in the tennis players. Material: In the study, 25 male volunteers participated, who are playing tennis at university level and in whom the existence of musculus palmaris longus was checked. The ages of volunteers, who participate in tennis activities under licenses, vary between 18 and 25 and they have no disability or illness in the upper extremity. The experimental group (n=7) is comprised of individuals, who do not have musculus palmaris longus, while the control group (n=18) is comprised of individuals having musculus palmaris longus. Results: The age averages of the groups participating in the study was 21, 89±2, 246 years old for the group with musculus palmaris longus, while it was 22, 00±2, 517 years old for the participants without the musculus palmaris longus; as per their average height, it was 174, 94±5, 713 cm for the group with the musculus palmaris longus, while it was 174, 71±3, 546 cm for the participants without the musculus palmaris longus; the body weight average was 70, 83±5, 79 kg for the participants with musculus palmaris longus, while it was 72, 14±4, 059 kg for the participants without the musculus palmaris longus; sports-age average was 13, 00±1, 645 years for the ones with musculus palmaris longus, while it was 12, 29±1, 380 years for the participants without musculus palmaris longus. It was determined that there was statistically significant difference for the serve speed (p<0, 001) and the hand flexion strength (p<0, 05) parameters of the participants; however, there was statistically no significant difference (p>0, 05) in other parameters. Conclusions: As the conclusion, existence of musculus palmaris longus in tennis players positively influences the hand wrist flexion strength, however, it negatively influences the serve speed.

Impact of poetry-based ethics education on the moral sensitivity of nurses: A semi-experimental study

2021 ◽  
pp. 096973302110417
Author(s):  
Kobra Rashidi ◽  
Tahereh Ashktorab ◽  
Mehdi Birjandi
Keyword(s):  
Experimental Study ◽  
Ethics Education ◽  
Control Group ◽  
Moral Sensitivity ◽  
Post Intervention ◽  
Lasting Effect ◽  
Significant Difference ◽  
The Mean ◽  
Design And Methods ◽  
The Impact

Background: The nurses’ moral sensitivity is the first step to make right decisions in difficult moral situations. Therefore, its education and promotion is highly important. Research objectives: The aim of this study was to examine the impact of poetry-based ethics education on the nurses’ moral sensitivity. Research design and methods: This was a semi-experimental study. The sample consisted of 108 nurses who were selected by convenience sampling method and randomly assigned to three groups: intervention with poetry (G1), who read a booklet about values and principles of professional ethics as well as poems related to these subjects for 1 month; intervention without poetry (G2), who only read the booklet without any poetry; and control group (G3), who did not receive any intervention. Data were collected by Moral Sensitivity Questionnaire that was completed by the participants prior to the intervention (T1), 1-month post-intervention (T2), and 2-month post-intervention (T3). Data were analyzed by SPSS 16 software. Ethical considerations: This study was conducted in accord with the principles of research ethics and regulations relating to informed consent. Findings: Changes in the mean score of total moral sensitivity were significantly higher in G1 than in G2, which was in turn significantly higher than in G3. This increase was significant from T1 to T2 and T2 to T3 (P < 0.001). In all subscales, there was a significant difference between the mean changes in the three groups, so that in these subscales, the mean changes in G1 were significantly higher than those in other groups. Discussion: In line with previous studies, our results showed the effectiveness of poetry-based education on the transfer of educational concepts and increase moral sensitivity scores with greater lasting effect. Conclusion: The use of interdisciplinary subjects such as poetry, due to its entertaining, fun, and lasting effect on minds; level of awareness; and actions of nurses, can help raise nursing moral sensitivity.

scholarly journals Ecophysiological Effects of Waterborne Zinc on Ctenopharyngodon idellus

2021 ◽  
pp. 18-28
Author(s):  
Wanjun Li ◽  
Yiguo Xia ◽  
Li Liu ◽  
Yulian Yan ◽  
Xiaojun Xie
Keyword(s):  
Specific Weight ◽  
The Body ◽  
The Other ◽  
Whole Body ◽  
Control Group ◽  
Ctenopharyngodon Idellus ◽  
High Concentration ◽  
High Exposure ◽  
Sulfate Heptahydrate ◽  
Significant Difference

The juvenile Ctenopharyngodon idellus (19.68±0.17 g) were exposed to the solutions of zinc sulfate heptahydrate (ZnSO4.7H2O), to observe the toxic effects of waterborne Zn on this fish. The results showed that the median lethal concentration (LC50) over 96 h of waterborne Zn2+ was 5.00 mg/L. After 8 weeks of chronic exposure, the final weight and the specific weight growth rate of C. idellus decreased with the increasing Zn2+ concentration, and the differences were significant among the three groups (P < 0.05). The content of ash in the high exposure group was significantly higher than those in the other two groups (P < 0.05). The dry mass in the two exposure groups and the energy density in the low concentration group were significantly higher than those in the control group (P < 0.05). The contents of Zn in the hepatopancreas, gill, intestine, muscle, and whole body in the high concentration group were significantly higher than those in the control group (P < 0.05). The contents of Zn in hepatopancreas were significantly higher than those in other organs (P < 0.05). There was no significant difference for the contents of Zn in the intestine and gill in the two Zn exposure groups, but those were significantly higher than those in other organs except hepatopancreas (P < 0.05). The content of Zn in muscle was significantly lower than that in the other organs. It suggests that the pattern of energy allocation of the C. idellus is changed by the Zn exposure. Fat was preferentially used to provide extra energy for the detoxification under the Zn exposure, and the rates of the protein and energy deposited in the body were reduced. Therefore, the growth of the fish was depressed. The C. idellus mainly takes up Zn through the gill and distributes Zn to other tissues via blood circulation.

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