THE EFFECT OF ORGANIC SEDIMENT CONTENT ON CORAL DIVERSITY IN KARIMUNJAWA ISLAND, INDONESIA

Coral reef now are under threats due to sedimentation. Fatal effect of organic rich sediment, leading corals mortality. Therefore, the study was conducted to investigate effect of organic sediment content to the coral diversity in Karimunjawa Island, Central Java, Indonesia. Field data was conducted at 6 locations. Three sediment traps were deployed at each sites to measure organic sediment content. Twenty replicated quadrant transects were used to estimate coral density and coral diversity. Analysis of variance (ANOVA) was used to examine the differences of organic sediment content in each station. The linear regression was used to assess the relationship between organic sediment content and coral diversity. Our field result demonstrated that sediment content significantly different between sites with value range from 0.42 mg/800 ml - 1.32 mg/800 ml. Based on the Simson’s Diversity Index, the highest coral diversity found at Alang-alang as site with low sedimentation while the lowest coral diversity was found at Legon Lele as site with high sedimentation. The study shown significant negative correlation between organic sediment content and coral diversity with the coefficient of regression 0.68. This study convinces that disturbance on coral reefs might affect coral diversity in Karimunjawa Island, in addition to other factors such as the influence of human activities, natural disruption and climate change. Keywords: sedimentation, organic, coral, diversity, Karimunjawa

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HUBUNGAN ANTARA SIKAP TERHADAP PASIEN PENYAKIT JIWA DENGAN PERILAKU AGRESIF PERAWAT PASIEN PENYAKIT JIWA

Proyeksi ◽

10.30659/p.6.1.89-99 ◽

1970 ◽

Vol 6 (1) ◽

pp. 89

Author(s):

Elok Faiqoh ◽

Falasifatul Falah

Keyword(s):

Mental Illness ◽

Random Sampling ◽

Aggressive Behaviour ◽

Mental Hospital ◽

Significant Negative Correlation ◽

Correlation Technique ◽

Random Data ◽

Central Java ◽

The Relationship ◽

Cluster Random Sampling

Abstrak Tujuan dari penelitian ini adalah menguji korelasi antara sikap perawat terhadap pasien penyakit jiwa dengan perilaku agresif perawat pasien penyakit jiwa. Sampel penelitian adalah 75 orang perawat di Rumah Sakit Jiwa Prof Dr Soeroyo Magelang, Jawa Tengah, berdasarkan teknik pengambilan sample cluster random. Data diambil dengan skala perilaku agresif perawat pasien penyakit jiwa serta skala sikap terhadap pasien penyakit jiwa. Berdasarkan analisis data yang menggunakan teknik korelasi Product Moment, korelasi antara sikap perawat terhadap pasien penyakit jiwa dengan perilaku agresif perawat pasien penyakit jiwa adalah rxy = -0,508 dengan signifikasi 0,000 (p<0,01), menunjukkan adanya hubungan negatif yang sangat signifikan antara kedua variable tersebut. Kata kunci: perilaku agresif, sikap terhadap pasien penyakit jiwa, perawat THE RELATIONSHIP BETWEEN NURSE’S ATTITUDE TOWARDS MENTAL-ILLNESS PATIENTS AND AGGRESSIVE BEHAVIOUR OF NURSE WHO LOOK AFTER MENTAL-ILLNESS PATIENTS Abstract This study was purposed to examine the relationship between nurse’s attitude towards mental-illness patients and aggressive behaviour of nurse who look after mental-illness patients. Samples of study were 75 nurse in Prof Dr Soeroyo Mental Hospital Magelang, Central Java, based on cluster random sampling. Data was collected using aggressive behaviour scale and attitude towards mental-illness patients scale. Based on data analysis employing Product Moment correlation technique, it was found that correlation between nurse’s attitude towards mental-illness patients and aggressive behaviour of nurse who look after mental-illness patients was rxy = -0,508 while significance 0,000 (p<0,01), showed that there was a very-significant negative correlation between these two variables. Keywords: aggressive behaviour, attitude towards mental-illness patients, nurse

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Peak flood volume and its suspended sediment at various rainfall in Kedungbulus catchment in Gombong, Central Java, Indonesia

Journal of Degraded and Mining Lands Management ◽

10.15243/jdmlm.2021.091.3211 ◽

2021 ◽

Vol 9 (1) ◽

pp. 3211-3217

Author(s):

Tyas Mutiara Basuki ◽

Irfan Budi Pramono

Keyword(s):

Suspended Sediment ◽

Stream Water ◽

Anthropogenic Factors ◽

Antecedent Soil Moisture ◽

Time To Peak ◽

Central Java ◽

Flood Volume ◽

Sediment Content ◽

The Relationship ◽

Peak Flood

Flood is a natural disaster that frequently happens and causes many material and immaterial losses. During flooding, the suspended sediment is carried along by the streamflow. The amount of sediment transported varies and depends on natural and anthropogenic factors. Limited studies have been conducted regarding the relationship between peak flood volume and its sediment content. Therefore, a study with the purpose to understand the relationship of rainfall characteristics, peak flood volume, and suspended sediment was undertaken in Kedungbulus Catchment in Gombong, Central Java, Indonesia. The size of Kedungbulus catchment is 37.8 km2. To collect the required data, an automatic stream water level recorder was installed in the outlet of the catchment. In addition, an automatic and two conventional rain gauges were set up inside the catchment. Hydrograph and statistical analysis were conducted on 2016-2017 data. The results showed that during the study period, the highest peak flood volume occurred on October 8, 2016. The flood duration was 490 minutes, with the time to peak was 135 minutes. At the highest peak flood volume, the stream water was 5,091,221 m3, and the suspended sediment was around 2,394 tons. Rainfall depth significantly affects the peak flood volume and its suspended sediment. The rainfall intensity and Antecedent Soil Moisture Content (ASMC) weakly correlate with peak flood volume and its suspended sediment content.

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Structure of Macrozoobenthos (Gastropods) Community in Mangrove Forest Ecotourism Pandansari Kabupaten Brebes, Central Java

Asian Journal of Fisheries and Aquatic Research ◽

10.9734/ajfar/2019/v4i330057 ◽

2019 ◽

pp. 1-6

Author(s):

Natasya Natalia Sinaga ◽

Heti Herawati ◽

Herman Hamdani ◽

Asep Sahidin

Keyword(s):

Water Quality ◽

Mangrove Forest ◽

Diversity Index ◽

Survey Methods ◽

Environmental Parameters ◽

Mangrove Ecosystem ◽

Primary Data ◽

Central Java ◽

Cerithidea Cingulata ◽

The Relationship

Aims: This research aimed to analyze the abudance and diversity of macrozoobenthos in the Gastropod Class in the Ecotourism Waters of Pandansari Mangrove Forest, Brebes Regency, Central Java. Study Design: The research was conducted by survey. Place and Duration of Study: This research was carried out for 3 months between December 2018 until February 2019 in Ecotourism Forest Areas in Bakau Pandansari, Brebes Regency, Central Java. Methodology: The method used in this research was survey methods using primary data in the form of physical chemistry of aquatic data, gastropod abundance, diversity index, equitability index. Data collection techniques using purposive sampling in determining 3 stations and 3 repetitions. Data analysis in this research used descriptive statistics. Results: Research results found 9 species of Gastropods inhabiting the mangrove ecosystem, namely Casidulla aurisfelis, Cerithidea sp, Cerithidea alata, Cerithidea cingulata, Cerithidea obtusa, Polinices sp, Puperita sp, Telescopium telescopium and Turiculla nellial-suprius. Gastropod abundance ranged from 67 - 166 ind / m2. Gastropod diversity index in the medium category 2 <H’ ≤ 3. Uniformity values ranged from 0.79 to 0.81 with a high category. The relationship between water quality and gastropods had an R2 value of 97%, water quality can affect gastropod life and as much as 3% is influenced by other factors. Conclusion: Based on the results of this research that has been done, it can be concluded that in general environmental parameters in the Pandansari mangroves are still favorable in supporting the survival of the gastropods inhabiting them.

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Keragaman dan pengelompokan ikan berdasarkan karakter morfologi di ekosistem Bendungan Colo Sukoharjo Jawa Tengah

DEPIK ◽

10.13170/depik.7.1.9886 ◽

2018 ◽

Vol 7 (1) ◽

pp. 9-21

Author(s):

Ragil Nur Cahyono ◽

Agung Budiharjo ◽

Sugiyarto Sugiyarto

Keyword(s):

Fish Species ◽

Sampling Method ◽

Diversity Index ◽

Abiotic Factors ◽

Morphological Characteristics ◽

Cluster Method ◽

Factors Affecting ◽

Central Java ◽

Regression Test ◽

The Relationship

The objective of the present study was to determine the diversity fishes in Colo Dam ecosystem and grouping its based on morphological characteristics. Sampling was conducted in September to October 2017 at Sukoharjo Colo Dam Central Java used the purposive random sampling method. Identification of fish species based Kottelat (1993). The diversity of fish was calculated using Shannon Wiener's diversity index. The relationship between abiotic factors and the diversity of fish was analyzed by regression test. Grouped fish with the Ntsys cluster method (2.02i). The results showed that the diversity of Colo Dam fish at station III was higher (1.16) than at stations I, II, and IV (0.84, 0.82, and 1.15), the abiotic factors affecting the diversity of fish species, and fish species that have large morphological equations have a high coefficient of similarity value in dendogram analysis.Penelitian ini bertujuan untuk menganalisis keanekaragaman dan pengelompokan ikan pada di Bendungan Colo. Pengambilan sampel dilakukan pada bulan September-Oktober 2017 di Bendungan Colo Sukoharjo menggunakan metode Purposive sampling. Identifikasi spesies ikan berdasarkan Kottelat (1993). Keanekaragaman ikan dihitung menggunakan indeks keragaman Shannon Wiener. Hubungan antar faktor abiotik dengan keanekaragaman ikan dianalisis dengan uji regresi. Pengelompokan ikan dengan metode cluster Ntsys (2.02i). Hasil penelitian menunjukkan bahwa keragaman ikan Bendungan Colo di stasiun III lebih tinggi (1,16) dari pada stasiun I, II, dan IV (0,84; 0,82; dan 1,15), faktor abiotik mempengaruhi keanekeragaman jenis ikan, dan jenis-jenis ikan yang memiliki persamaan morfologi yang besar memiliki nilai koefisien kemiripan yang tinggi dalam analisis dendogram.

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387 The moderating effect of emotion regulation strategies in the relationship between insomnia severity and bedtime procrastination

SLEEP ◽

10.1093/sleep/zsab072.386 ◽

2021 ◽

Vol 44 (Supplement_2) ◽

pp. A153-A154

Author(s):

Huisu Jeon ◽

Sonhye Jeoung ◽

Goeun Kim ◽

Hyeyoung An ◽

Hyojin Nam ◽

...

Keyword(s):

Negative Correlation ◽

Emotional Regulation ◽

Significant Negative Correlation ◽

Moderating Effect ◽

Active Regulation ◽

Support Seeking ◽

Regulation Strategies ◽

Bedtime Procrastination ◽

The Relationship ◽

Insomnia Severity

Abstract Introduction Bedtime Procrastination (BP) is defined as the behavior of going to bed later than intended, despite the absence of external factors. Bedtime procrastination is also prevalent among insomnia patients, and is associated with various sleep problems. Recent studies suggest emotional regulation as a mechanism of the procrastination behavior that is the conceptual foundation of bedtime procrastination. Emotional regulation difficulties are also associated with insomnia, but there is still a lack of research on the relationship between insomnia, emotional regulation strategies and bedtime procrastination. Thus, the study assumed that severity of insomnia would affect bedtime procrastination, and examined the moderating effect of the emotional regulation strategies in this relationship. Methods This study was conducted in 376 adults (mean age 23.73 ±2.14 years, 84.6% females). Participants were asked to answer Bedtime procrastination scale (BPS), an emotional regulation strategy checklist, and the Insomnia severity scale (ISI). Results As a result, a significant positive correlation was found between insomnia severity and bedtime procrastination (r=.286, p<.01), and avoidant/distractive regulation style (r=.101, p<.05). active regulation style (r=-.172, p<.01) and support seeking regulation style (r=-.102, p<.01) showed a significant negative correlation with the severity of insomnia. Bedtime procrastination behavior showed significant negative correlation only with active regulation style (r=-.151, p<.01). Support seeking regulation style moderated the relationship between insomnia and bedtime procrastination behavior (B=.0165, 95%, CI=.0014, .0316). The interaction effect between insomnia and support seeking regulation style was also significant (∆R^2=.0112, p<.05), indicating that the effect of insomnia on bedtime procrastination depends on the level of use of the support seeking regulation style. Conclusion These findings suggest that the level of support seeking regulation style is meaningful in terms of how insomnia affects bedtime procrastination. Support (if any) This work was supported by the Ministry of Education of the Republic of Korea and the National Research Foundation of Korea(NRF-2018S1A5A8026807)

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Emotional labor strategies mediate the relationship between psychological empowerment and burnout of frontline hotel employees

Social Behavior and Personality An International Journal ◽

10.2224/sbp.10053 ◽

2021 ◽

Vol 49 (4) ◽

pp. 1-10

Author(s):

Min Li ◽

Ziyu Zhao ◽

Lijuan Cui

Keyword(s):

Negative Correlation ◽

Emotional Labor ◽

Psychological Empowerment ◽

Job Demands ◽

Significant Negative Correlation ◽

Job Burnout ◽

Automatic Regulation ◽

Conservation Of Resources ◽

Hotel Employees ◽

The Relationship

We examined the relationships among psychological empowerment, emotional labor strategies, and job burnout of frontline hotel employees with reference to conservation of resources theory and the job demands–resources model. A sample of 414 employees from a Chinese chain hotel was recruited to take part in this study. There was a significant negative correlation between psychological empowerment and job burnout for these frontline hotel employees. Furthermore, the emotional labor strategies of deep acting and automatic regulation played partial mediating roles in the relationship between psychological empowerment and job burnout, which has implications for the development of intervention mechanisms and work practices for addressing burnout.

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Relationship between psychological suzhi and internet addiction among chinese college students

Journal of Systems and Information Technology ◽

10.1108/jsit-07-2020-0127 ◽

2021 ◽

Vol ahead-of-print (ahead-of-print) ◽

Author(s):

Yuan-yan Hu ◽

Peng Wang ◽

Xin-qiang Wang ◽

Tian-qiang Hu

Keyword(s):

College Students ◽

Internet Addiction ◽

North China ◽

Southwest China ◽

Significant Negative Correlation ◽

Hierarchical Regression ◽

Content Type ◽

Chinese College Students ◽

College Sample ◽

The Relationship

Purpose Despite concerns about the effect of internet addiction, little is known about how psychological suzhi impacts the internet addiction of college students. This paper aims to investigate the relationship between psychological suzhi and internet addiction among college students. Design/methodology/approach Using the college student psychological suzhi scale and internet addiction test, 2,070 college students from 11 universities in North China, East China, South China and Southwest China were tested. Findings The detection rate of internet addiction in this college sample of students was 18.8%. There was a significant negative correlation between students’ psychological suzhi and internet addiction (r = −0.408, p < 0.01). Hierarchical regression analysis showed that adaptability and individuality in psychological suzhi significantly negatively predicted college students’ internet addiction tendency (p < 0.001). Originality/value This study is the first to show a relationship between psychological suzhi and internet addiction in college students. In detail, the adaptability and individuality of college students’ psychological suzhi are protective factors related to internet addiction. The results also suggested that the authors can prevent and intervene in internet addiction by modifying college students’ adaptability and individuality.

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The Relationship of Megazoobenthos Association with Seagrass Ecosystem Conditions in Ujung Genteng Waters, Sukabumi

Asian Journal of Fisheries and Aquatic Research ◽

10.9734/ajfar/2019/v5i430081 ◽

2020 ◽

pp. 1-10

Author(s):

Gilang Primanagita Rachman ◽

Indah Riyantini ◽

Zahidah Hasan ◽

Herman Hamdani

Keyword(s):

Diversity Index ◽

Close Association ◽

Strong Relationship ◽

Survey Method ◽

Association Pattern ◽

Seagrass Ecosystem ◽

Relationship Of ◽

The Relationship ◽

Seagrass Density ◽

Diadema Setosum

Seagrass beds in Ujung Genteng waters are one of the shallow marine ecosystems that have relatively high biodiversity. Seagrass ecosystem as one of the coastal ecosystems in these waters has a diversity of marine life that is associated with it. The purpose of this study was to establish the association pattern and the correlation of mega zoobenthos to seagrass ecosystem conditions. The method used was a survey method by conducting a survey direct observation of the stations that have been determined. Three seagrass species were identified, namely: Thallasia hemprichii, Cymodoceae rotundata and Enhalus acoroides. The highest density of seagrass was found in station 2 with the type of seagrass Thallasia hemprichii as much as 207 ind/m2. Fifteen mega zoobenthos species were identified representing 3 phyla. Species Mega zoobenthos which is most commonly found in Ujung Genteng waters is Ophiothrix fragilis, Ophiocoma erinaceus, and Diadema setosum. The mega zoobenthos Diversity Index at the observation station is included in the medium category that is 2.33-2.66 and the evenness index is 0.63-0.84. Correlation of seagrass density with mega zoobenthos obtained by 0.92 shows that there is a very strong relationship between seagrass density with mega zoobenthos. The result shows that there are 4 patterns of close association and 2 patterns of very close association. Ophiocoma erinaceus of the ophiuroidea class has a pattern of very close positive associations with seagrass Cymodoceae rotundata and Dendrodoris sp of the order nudibranchia has a pattern of very close negative associations with seagrass Cymodoceae rotundata.

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Assessment of the relationship between labial gingival thickness and the underlying bone thickness in maxillary anterior teeth by two digital techniques

Scientific Reports ◽

10.1038/s41598-021-04721-7 ◽

2022 ◽

Vol 12 (1) ◽

Author(s):

Linhong Wang ◽

Yan Ruan ◽

Jianping Chen ◽

Yunxiao Luo ◽

Fan Yang

Keyword(s):

Negative Correlation ◽

Significant Negative Correlation ◽

Bone Thickness ◽

Gingival Thickness ◽

Anterior Teeth ◽

Weak Negative Correlation ◽

Implant Restoration ◽

The Relationship ◽

Esthetic Area ◽

Healthy Participants

AbstractThis study aimed to noninvasively assess the relationship between the labial gingival thickness (GT) and the underlying bone thickness (BT) of maxillary anterior teeth by two digital techniques. A total of 30 periodontally healthy participants with 172 maxillary anterior teeth were enrolled. GT and BT were measured at 2, 4 and 6 mm apical to the cemento-enamel junction (CEJ) by two digital techniques: M1—cone-beam computed tomography (CBCT) and M2—digital intraoral scanning (DIS) combined with CBCT. The Pearson's correlation coefficient was calculated to determine the correlation between GT and BT. A significant negative correlation was identified between GT and BT at 2 mm apical to the CEJ for central incisors (CI), lateral incisors (LI), and canines (CA) both by M1 and M2, while a weak negative correlation at 4 mm apical to the CEJ was observed by M1 for CA. No significant correlation was found at other sites by both M1 and M2. The labial BT was < 1 mm in most cases (85% of CI; 97% of LI; and 90% of CA). Within the limitation of this study, it was concluded that GT and BT seemed to be negatively correlated at 2 mm apical to the CEJ. Therefore, caution is warranted when implant restoration at the esthetic area of the anterior teeth.

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Community Structure of Dragonfly (Ordo: Odonata) in Natural Forest and Tourist Sites Petungkriyono Forest, Central Java, Indonesia

Journal of Tropical Biodiversity and Biotechnology ◽

10.22146/jtbb.67328 ◽

2021 ◽

Vol 6 (3) ◽

pp. 67328

Author(s):

Nur Apriatun Nafisah ◽

R.C.Hidayat Soesilohadi

Keyword(s):

Community Structure ◽

Tropical Rainforest ◽

Diversity Index ◽

Natural Forest ◽

Natural Forests ◽

Community Based ◽

Central Java ◽

Wiener Diversity Index ◽

Index Value ◽

Total Species

Petungkriyono forest is a tropical rainforest with high biodiversity. The increasing tourism activities in Petungkriyono lead to land conversion. Dragonfly (order Odonata) is a good bioindicator for aquatic and terrestrial. This study aimed to compare the community structure of Odonata in natural forests and tourist sites. The method of collecting imago Odonata was done by direct searching, samples were captured using sweep netting. The results showed that the dragonflies found in all locations consisted of the same family, 2 families (Gomphidae and Libellulidae) from the suborder Anisoptera and 6 families (Calopterygidae, Chlorocyphidae, Coenagrionidae, Euphaidae Platycnemididae, and Platystictidae) from the suborder Zygoptera. The total species of dragonflies found in Sokokembang were 15 species with a total of 293 individuals, Tirta Muncar 13 species of 287 individuals, Karanggondang 17 species of 276 individuals, and Curug Lawe 14 species of 242 individuals. The highest relative abundance of individuals was in the natural forest of Sokokembang is Drepanosticta spatulifera (26.28%) and in Karanggondang Vestalis luctuosa (24.64%), while in the tourist forests of Tirta Muncar and Curug Lawe were Euphaea variegata (34.84% and 28.51 %). The structure of the Odonata community is based on the Shannon-Wiener diversity index in the natural forests of Sokokembang (2.18) and Karanggondang (2.21) at the tourist sites of Tirta Muncar (1.84) and Curug Lawe (2.11). The results showed that the structure of the Odonata community based on the level of the diversity index value, evenness index, and dominance index in natural forests and tourist sites in Petungkriyono forest was not significantly different.

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