bluuebunny/crossref_metadata_2025 huggingface dataset:
ASSOCIATION OF INTERNET GAMING ADDICTION WITH INDICATORS OF DEPRESSION ON THE HADS SCALE AMONG MEDICAL UNIVERSITY STUDENTS
Authors: Derevyannich Evgeny V. , Balashova Natalia A. , Yaskevich Roman A. , Moskalenko Olga L.
Published: October 2024

In recent years advances in gaming technology and a significant increase in Internet connection speeds have made online games more attractive and accessible. According to the available literature, excessive involvement in this type of Internet content can lead to stress, depression, anxiety, personal problems and a significant risk of suicidal behavior. Numerous studies have reported high rates of depression among medical students worldwide, highlighting the need for a deeper understanding of the factors contributing to its formation.
Purpose. To establish relationships between indicators of depression, determined by the HADS questionnaire, and Internet gaming addiction among students studying at a medical university.
Materials and methods. The survey involved 244 boys and girls studying in the 3rd year of medical university. The presence of Internet gaming addiction, as well as the identification of depressive disorders with an assessment of the degree of their severity, was established using the Russian-language versions of the Game Addiction Scale for Adolescents (GASA) and The Hospital Anxiety and Depression Scale (HADS) questionnaires.
Results. According to the data obtained, the presence of Internet gaming addiction was identified in 7,4% of the examined students. Among the surveyed male students, this type of Internet addictive behavior was more common (10,6%) compared to female students (6,2%). Indicators of depression of varying severity, determined by the HADS questionnaire, were identified in 16,0% of the examined students. Moreover, among female students the frequency of identified depression was higher (17,4%) compared to male students (12,1%). It was found that more than half of students with depressive disorders (55,6%) suffered from Internet gaming addiction. It was noted that the number of patients with depressive disorders in combination with this type of Internet addictive behavior was higher in comparison with persons without Internet gaming addiction, both among male students (57,1% vs 42,9%), and among girls (54,5% vs 45,5%), respectively.
Conclusion. Relationships have been established between indicators of depression, determined by the HADS questionnaire, and Internet gaming addiction among students studying at a medical university.
Technology for the development and implementation of social programs
Authors: Schukina Nina
Published: October 2024

The textbook discusses the most important methodological and technological issues of the development and implementation of social programs, discusses the main aspects of the organization of social programming.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For undergraduates of the Sociology of Social Change program studying the course "Technology of development and implementation of social programs", students specializing in practical sociology, as well as for specialists in the field of social programming and those who care about the state of civil society in our country, who are interested in exercising their rights to participate in decision-making in his hometown, the state as a whole.
Theory of State and law
Authors: Kalinina Elena
Published: October 2024

The textbook, in addition to theory, contains many examples from modern practice and the history of law. The structure of the manual is unusual — its content is located on three levels, at each of which readers will receive the information they need, in accordance with their requests: concise, general or in-depth.
It is intended for students of secondary vocational education institutions, an enlarged group of specialties 40.00.00 "Jurisprudence", as well as for all those interested in theoretical issues of state and law. It is an adaptive manual that can be used as an addition to textbooks on the discipline "Theory of State and Law", as well as in the study of the discipline "Jurisprudence".
Fundamentals of product management
Authors: Aleshnikova Vera
Published: October 2024

The textbook allows you to form competencies in the field of specialized marketing activities — product management. The theoretical part describes modern technologies for the formation, analysis and development of an assortment offer; product positioning and assessment of its competitiveness; the concept of the product life cycle and the process of developing a new product; the basics of the company's brand policy, unit economics. To consolidate knowledge, the theoretical material in each chapter is accompanied by tasks for self-examination.
Meets the requirements of the federal state educational standards of higher education of the latest generation.
For university students studying in the field of training (specialty) "Management". It may be useful for masters, students of business schools, professional development programs, and practitioners.
Theory and practice of forensic economic expertise: problems and prospects
Authors: Timchenko Vladimir
Published: October 2024

The monograph examines the problematic aspects of the theory and practice of forensic economic expertise in modern conditions. The problems of forming new methods of expert research of objects submitted for examination in digital form are raised. The possibilities of using artificial intelligence systems to solve the problems of forensic economic expertise are being investigated. Specific proposals have been developed to improve the legal regulation of forensic activities.
For graduate students of higher educational institutions enrolled in postgraduate programs in the group of scientific specialties 5.1 "Law", as well as researchers, teachers, practitioners, experts, persons initiating the appointment of forensic economic expertise - judges, investigators, defenders and other participants in the process.
Breech birth
Authors: Yarrington Aimee
Published: October 2024

The breech presentation is a maternity emergency that is often only diagnosed at the point of the buttocks presenting. There is often little warning as many breech presentations are diagnosed only in labour. JRCALC guidance on the management of the breech presentation was updated in 2023, giving step-by-step clear guidance at every stage of the birth progression. In the prehospital setting, where births are rare in themselves, the added complexity of the breech presentation requires the clinician to have extra vigilance and adhere to the guidance that is set out within the current article.
Smart screening
Authors: White Emma
Published: October 2024

Emma White explores how suppliers are supporting practices with screening and clinical decision-making
Putting the patient in the centre
Authors: Hale Mike
Published: October 2024

Mike Hale catches up with Jacqueline Henderson, president, EMEA, at Johnson & Johnson Vision, to discuss the synergies between optometry and ophthalmology, differing approaches to eye care across national boundaries, and trends in contact lens prescribing
Dry eye and depression
Authors: Retallic Neil
Published: October 2024

To recognise World Mental Health Day on Tuesday, October 10, 2023, Neil Retallic sparks a discussion around the relationship between dry eye disease and depression
CPD: Atypical spectacle non-tolerance: The clinical perspective
Authors: Arnold Sarah
Published: October 2024

Sarah Arnold examines how a diligent dispensing optician's look into a case of varifocal non-tolerance restored a patient's eye health and sight
ESCRS Vienna
Authors: Jones Nabila , O’Donnell Clare
Published: October 2024

Dr Nabila Jones and Dr Clare O'Donnell report from the ESCRS Congress that was held in Vienna in September
Profession takes zero-tolerance approach to bullying
Authors: McCarthy-McClean Andrew
Published: October 2024

The GOC convened a meeting with professional bodies after its survey identified widespread discrimination. Andrew McCarthy-McClean reports
CPD: Optometric practice – the natural home of dry eye
Authors: Price Andrew
Published: October 2024

In this first article in a series on dry eye disease, Andrew Price discusses the signs, symptoms and effects of dry eye on vision highlighting the importance that patients are seen by registered eye care professionals as in far too many cases misunderstanding of what dry eye is, its nature and inappropriate treatment often can lead to a delayed diagnosis and worsening of the condition
Time to learn
Authors: Blackmore Francesca
Published: October 2024

In the first of her monthly columns, Francesca Blackmore outlines the case for optical assistants and other practice staff bolstering their practical clinical knowledge
Truth or myth
Authors: Dantam Jaya
Published: October 2024

This month, in our series looking at common myths concerning contact lenses, Jaya Danatam looks at correcting low astigmats
Ocular complications of a rare viral infection
Authors: Arnold Sarah
Published: October 2024

Sarah Arnold describes a rare patient case of ocular complications following travel abroad
High street optometry will be leveraged by Labour
Authors: Jones Simon
Published: October 2024

Key sector figures respond to proposed Labour plans to harness the high street to reduce ophthalmology waiting times. Simon Jones reports
Prints charming
Authors: Jones Simon
Published: October 2024

Plenty of sustainable 3D printed options were on show at Opti 2024. Simon Jones reports
CPD: Hypertension and the eye
Authors: Arnold Sarah
Published: October 2024

Sarah Arnold walks us through another intriguing patient case, highlighting the important role optometrists play in systemic disease detection
Dispensing a non-verbal child on the autistic spectrum
Authors: Golding Stephen
Published: October 2024

Former hospital dispensing optician Stephen Golding shares one of his more challenging and rewarding cases, a child that could only be refracted and dispensed under general anaesthetic
Diary of a Spectacle Designer
Authors: Davies Tom
Published: October 2024

Tom Davies ponders the role of personal brands in eyewear
Everyone wins
Authors: Blackmore Francesca
Published: October 2024

Francesca Blackmore discusses the support for clinical focused practice in Wales and learning to live in harmony with your high street multiple
CPD: Neurodevelopmental disorders and contact lenses
Authors: Retallic Neil , Parmar Ketan
Published: October 2024

Neil Retallic and Dr Ketan Parmar highlight key considerations for the eye care professional when fitting and managing contact lens wear in patients with neurodevelopmental conditions such as ADHD and autism. The authors focus on the importance of communication and offer practical steps for the ECP
BCLA CLEAR interactive
Authors: Nagra Manbir , Retallic Neil
Published: October 2024

Manbir Nagra and Neil Retallic give a review of discussions regarding the BCLA CLEAR interactive exercise from Optician 1/12/23 (C104056)
Truth or myth
Authors: Woods Jill
Published: October 2024

This month, in our series looking at common myths concerning contact lenses, Jill Woods looks at the data on how junior patients get on with them
Back to basics
Authors: Salt John Dixon
Published: October 2024

Modern day practitioners are spoilt for options when it comes to instrumentation, practice gadgets and IT systems. For practitioners past, the approach was somewhat more basic. John Dixon Salt describes the challenges and resourcefulness of early 20th century practitioners
Mega Mido
Authors: McCarthy-McClean Andrew
Published: October 2024

From independent start-up brands to giants of the optical industry, Andrew McCarthy-McClean heads to Milan to explore the largest European trade show
The art of mentoring
Authors: Bernstein Adam
Published: October 2024

Adam Bernstein explores why eye care professionals should take the next generation under their wing
Profession celebrates World Optometry Week
Authors: McCarthy-McClean Andrew
Published: October 2024

The World Council of Optometry created a new framework for the future of eye care and a new partnership for presbyopia was formed. Andrew McCarthy-McClean reports
Social media celebrations
Authors: White Emma
Published: October 2024

Practice of the Year category at the Optician Awards 2023. Emma White caught up with director and practice manager Francesca Blackmore
A vintage ophthalmoscope
Authors: King Andrew
Published: October 2024

traces the development of the ophthalmoscope and describes a vintage model in his possession
A case history
Authors: Salt John Dixon
Published: October 2024

John Dixon Salt of the Ophthalmic Antiques International Collectors' Club takes readers on a fascinating journey through history; describing how, once upon the time, the now humble spectacle case was considered quite the status symbol
Fees fall out
Authors: White Emma
Published: October 2024

The profession has responded with anger and frustration at the government's ‘derisory’ GOS fee increase. Emma White reports
Serving style
Authors: McCarthy-McClean Andrew
Published: October 2024

Andrew McCarthy-McClean previews EssilorLuxottica's spring/summer 2024 eyewear launches
Specialist Low Vision clinics in the UK
Authors: Codina Charlotte
Published: October 2024

As part of our research spotlight series Dr Charlotte Codina highlights findings from a study, undertaken by Dr Codina and Martin Rhodes, which considers the distribution of low vision provision across the UK
Diary of a Spectacle Designer
Authors: Davies Tom
Published: October 2024

Tom Davies outlines his plans for increased involvement in sight-related charitable endeavours
Necessary support
Authors: Ormond Dearbhail
Published: October 2024

Dearbhail Ormond explains how women with endometriosis can be better supported in the workplace
Eye care attitudes towards myopia management in the UK
Authors: Coverdale Sophie , Ghorbani-Mojarrad Neema
Published: October 2024

As part of our research spotlight series, which aims to highlight interesting pieces of optometry related research, Sophie Coverdale and Dr Neema Ghorbani-Mojarrad describe their paper which evaluated ECP perspectives and attitudes towards myopia management
Giving low vision high priority
Authors: Black Tina Arbon
Published: October 2024

Tina Arbon Black speaks to Gill Thorp from Airedale Opticians about becoming Dispensing Optician of the Year
GOC surveys optical businesses for first time
Authors: McCarthy-McClean Andrew
Published: October 2024

Andrew McCarthy-McClean finds out how the profession is innovating amid challenging circumstances
Taking the industry by storm
Authors: Cosby Zoe
Published: October 2024

In the first part of a series celebrating British female talent in the eyewear industry, Zoe Cosby talks to Anna Lewis of Ffin Eyewear
Regulations revisited
Authors: White Emma
Published: October 2024

Emma White explores the latest developments in sight testing regulations for drivers plus ongoing efforts to promote and ensure road safety
Drivers' vision from the frontline
Authors: Jones Simon
Published: October 2024

Optician research highlights alarming data around drivers' vision. Simon Jones reports
Contact lens king
Authors: White Emma
Published: October 2024

Emma White speaks to contact lens practitioner of the year winner Mark Drake, owner of Mark Drake Opticians in Penarth, about building a successful contact lens business and exceeding patient expectations
Contact lenses through time
Authors: King Andrew
Published: October 2024

Andrew King traces the origins of contact lenses from antiquity to the pioneering John Herschel
CPD: The art of non-verbal communication
Authors: Ali Anneka
Published: October 2024

Optometrist and medical student, Anneka Ali, considers the implications of non-verbal communication for eye care practitioners
Improving efficiency and sustainability
Authors: Lyons Doug
Published: October 2024

Doug Lyons explains some of the ways Specsavers is trying to be environmentally responsible
Selling a business to its staff
Authors: Cowley Richard
Published: October 2024

Richard Cowley explains how it is possible to sell a business to its employees
7 ways to keep presbyopic patients in contact lenses
Authors: Patel Neelam
Published: October 2024

Neelam Patel explains how to tackle contact lens dropout among presbyopic patients and make the case for multifocals
CONTACT LENSES: Introduction to scleral contact lenses
Authors: Howard Nick
Published: October 2024

Contact lens expert, Nick Howard, outlines the fascinating history of scleral contact lens fitting
Eye care election plea made
Authors: McCarthy-McClean Andrew
Published: October 2024

The next government has been urged to improve eye care services in England. Andrew McCarthy-McClean reports
Artificial intelligence 6
Authors: Creighton-Sims Eluned ‘Lil’
Published: October 2024

Eluned Creighton-Sims considers the role of AI in ophthalmic lens design
Betting on ophthalmology?
Authors: Kirkpatrick Nigel
Published: October 2024

Nigel Kirkpatrick digs into the latest figures on cataract surgery services and points out the attraction patients feel towards safer options
CPD: Inherited retinal diseases 2
Authors: Arnold Sarah
Published: October 2024

Sarah Arnold continues her two-part series on inherited retinal disease and how optometrists can provide ongoing support to patients who have received a diagnosis of inherited retinal disease
Utilising the workforce
Authors: McCarthy-McClean Andrew
Published: October 2024

Andrew McCarthy-McClean interviews Gillian Ruddock about College presidency, multidisciplinary teams and connecting primary and secondary care
Environmental enrichment for gerbils in the veterinary and domestic environment
Authors: Crouch Kirsty
Published: October 2024

Small exotics, commonly referred to as ‘small furries’, include hamsters, gerbils, rabbits and an array of other species. Gerbils are one of the easiest rodents to maintain and manage due to their typically non-aggressive nature. Usually found in deserts and semi-arid geographical regions of the world, the Mongolian gerbils available today originated from 20 pairs of captured animals. These were maintained in 1935 in a closed, random-bred colony at the Kitasato Institute in Japan.
The impact of human factors on veterinary anaesthesia
Authors: Hill Rebecca
Published: October 2024

Human factors are an evidence-based science that consider how external factors and personal circumstances influence work behaviours and the reasons why events happen. It has been frequently studied in professions where mistakes can have disastrous consequences, such as aviation and human medicine, and is now becoming more considered in veterinary medicine. Understanding how human factors influence the safe delivery of anaesthesia means more safety measures can be put in place for both the wellbeing of patients and veterinary staff. These measures include surgical safety checklists, open communication between colleagues and the use of adverse event reporting platforms.
Implant design influences the joint-specific outcome after total knee arthroplasty
Authors: Clement Nick , MacDonald Deborah J. , Hamilton David F. , Gaston Paul
Published: October 2024

Aims

The aims were to assess whether joint-specific outcome after total knee arthroplasty (TKA) was influenced by implant design over a 12-year follow-up period, and whether patient-related factors were associated with loss to follow-up and mortality risk.

Methods

Long-term follow-up of a randomized controlled trial was undertaken. A total of 212 patients were allocated a Triathlon or a Kinemax TKA. Patients were assessed preoperatively, and one, three, eight, and 12 years postoperatively using the Oxford Knee Score (OKS). Reasons for patient lost to follow-up, mortality, and revision were recorded.

Results

A total of 94 patients completed 12-year functional follow-up (62 females, mean age 66 years (43 to 82) at index surgery). There was a clinically significantly greater improvement in the OKS at one year (mean difference (MD) 3.0 (95% CI 0.4 to 5.7); p = 0.027) and three years (MD 4.7 (95% CI 1.9 to 7.5); p = 0.001) for the Triathlon group, but no differences were observed at eight (p = 0.331) or 12 years’ (p = 0.181) follow-up. When assessing the OKS in the patients surviving to 12 years, the Triathlon group had a clinically significantly greater improvement in the OKS (marginal mean 3.8 (95% CI 0.2 to 7.4); p = 0.040). Loss to functional follow-up (53%, n = 109/204) was independently associated with older age (p = 0.001). Patient mortality was the major reason (56.4%, n = 62/110) for loss to follow-up. Older age (p < 0.001) and worse preoperative OKS (p = 0.043) were independently associated with increased mortality risk. An age at time of surgery of ≥ 72 years was 75% sensitive and 74% specific for predicting mortality with an area under the curve of 78.1% (95% CI 70.9 to 85.3; p < 0.001).

Conclusion

The Triathlon TKA was associated with clinically meaningful greater improvement in knee-specific outcome when compared to the Kinemax TKA. Loss to follow-up at 12 years was a limitation, and studies planning longer-term functional assessment could limit their cohort to patients aged under 72 years.

Cite this article: Bone Jt Open 2024;5(10):911–919.
PRESENTEÍSMO: Um modelo estrutural
Authors: Reis Neto Mário Teixeira , Fonte-Bôa Ana Lucrecia , Gonçalves Carlos Alberto , Costa Danilo Melo
Published: October 2024

Considerando que o presenteísmo é um evento limitador da produtividade, objetivou-se propor um modelo estrutural a partir da identificação e mensuração dos fatores que influenciam o presenteísmo, segundo as percepções dos empregados em empresas do setor de energia elétrica. Trata-se de uma pesquisa descritiva, conclusiva, de abordagem qualitativa e quantitativa. A partir de 25 entrevistas semi estruturadas foi gerado um instrumento de coleta de dados que foi aplicado em 1.778 pessoas, em 3 concessionárias de energia elétrica no Brasil. A análise dos dados foi feita utilizando-se a Modelagem de Equações Estruturais, abordagem PLS (Partial Least Squares) e estrutura de covariância CB-SEM (Covariance-based Structural Equation Modeling Techniques). Os construtos que mais influenciam o presenteísmo foram os aspectos pessoais (? = 0,406), os fatores culturais de aumento do presenteísmo (? = 0,399) e a percepção de estabilidade no emprego (? = 0,388). Os resultados apontaram possíveis ações para prever, prevenir e gerenciar as ocorrências de presenteísmo. Este artigo fornece elementos para a replicação desta pesquisa em outros segmentos ou regiões.
Coral reef condition Kepala Jeri Island, Batam, Riau Islands, Indonesia
Authors: AUNURRAHMAN AUNURRAHMAN , ANGGORO SUTRISNO , SAPUTRA SURADI WIJAYA , MUSKANANFOLA MAX RUDOLF
Published: October 2024

Abstract. Aunurrahman, Anggoro S, Saputra SW, Muskananfola MR. 2024. Coral reef condition Kepala Jeri Island, Batam, Riau Islands, Indonesia. Biodiversitas 25: 2820-2827. Understanding the actual condition of vulnerable coral reef ecosystems such as Kepala Jeri Island (Indonesia) is critical to enabling appropriate management planning. This research aimed to identify current coverage, observe the condition of the coral ecosystem, and identify the species composition of coral reefs in Kepala Jeri Waters. Data collection includes the spatial distribution, actual condition, and species composition of the coral ecosystem on Kepala Jeri Island, Riau Islands, Indonesia. Using an algorithm-based classification, we analyzed the spatial distribution of coral reefs from Landsat 8 OLI imagery. The study used Landsat OLI 8 images from the US Geological Survey (USGS) and observed the data using a line intercept transect. We obtained the actual coral conditions and species composition through field observation. The results revealed a total distribution of 239.67 ha of coral reef ecosystem in the surrounding area of Kepala Jeri Island. Unfortunately, the coral reef on Kepala Jeri Island was in poor condition, with an approximate living coral coverage of only 5-29.33%. Compared to other locations, we found the sand cover to be the highest, ranging from 28.33 to 51.67%. We also found that the seagrass bed had invaded the coral ecosystem, suggesting a reduced or absent population of halos grazers. Only the western and northern sides of Kepala Jeri Island exhibit adequate coral diversity despite discovering 26 coral species. Even though 26 coral species were found on Kepala Jeri Island, only the western and northern sides have adequate coral diversity. The findings suggest that the coral reef ecosystem on Kepala Jeri Island is under severe degradation, while the risk of further degradation remains. Therefore, human intervention is absolutely important to improve the coral reef ecosystem on Kepala Jeri Island, ensuring its sustainability.
Interior shell patterns among the Spondylid species (Bivalvia: Spondylidae) in Mindanao, Philippines
Authors: RUAZA FABIO JR. C. , MATURAN DONARD C. , BUSTILLO ERMELYN
Published: October 2024

Abstract. Ruaza FJC, Maturan DC, Bustillo E. 2024. Interior shell patterns among the Spondylid species (Bivalvia: Spondylidae) in Mindanao, Philippines. Biodiversitas 25: 2901-2906. The variations among the species of the Spondylus were assessed based on its interior shell pattern using landmark-based geometric morphometry. A total of 200 specimens were subjected to analysis. Samples of the Spondylid species were collected and photographed, and 15 landmarks from internal shell morphology were quantified and analyzed. The landmarks include the umbo, teeth, size of the muscle scar, and the pallial sinus. Multivariate analysis of variance revealed significant differences in internal shell characters among Spondylid species across sampling sites (p<0.05). Canonical Variance Analysis (CVA) effectively differentiated the local Spondylid species into distinct clusters. In addition, the relative warps captured the most significant sources of variation in the morphological characters analyzed, leading to effective differentiation between the groups or populations of the species. The most distinguishing characteristics among the species are the distance of the pallial line to the ventral tip of the adductor muscle scar and the size of the cardinal tooth. The internal shell characters among the Spondylid species exhibit notable disparity despite their great morphological similarity. These shell characters can be used in the identification while conservation efforts are still in the initial stage of development. The presence of notable dissimilarities in the internal shell characteristics among the Spondylid species indicates that even slight deviations can result in noticeable morphological distinctions. This discovery enhances the understanding of the species divergence within this group and underscores the significance of incorporating internal shell characteristics into taxonomic and ecological investigations.
Ethnobotanical study on traditional cosmetics practiced by the Dayak Kayong of West Kalimantan, Indonesia
Authors: SARI LEONI CLARA SELVITA , LOVADI IRWAN , WARDOYO ELVI RUSMIYANTO PANCANING , RANDI AGUSTI
Published: October 2024

Abstract. Sari LCS, Lovadi I, Wardoyo ERP, Randi A. 2024. Ethnobotanical study on traditional cosmetics practiced by the Dayak Kayong of West Kalimantan, Indonesia. Biodiversitas 25: 2937-2944. Various ethnic groups across the globe have practiced traditional cosmetics and many studies on cosmetic plants and their uses in Indonesia have been conducted. However, there is no ethnobotanical information on cosmetic plants and their uses, particularly in Dayak Kayong of Ketapang District, West Kalimantan, Indonesia. This study reports on cosmetic plants and their traditional uses by the Dayak Kayong community. We conducted semi-structured interviews from April to June 2022 with 30 respondents living in Nanga Tayap Sub-district in Ketapang District. Non-probability sampling was employed to select respondents based on their knowledge and practice of traditional cosmetics. Three indices, namely Frequency of Citation (FC), Informant Consensus Factor (ICF), and Fidelity Level (FL), were employed to analyze the ethnobotanical data. The Dayak Kayong community utilizes 26 plant species from 20 families for traditional cosmetics. The most frequently used plant part are leaves (34.62%), followed by fruits (19.23%), sap (15.38%), rhizomes (11.54%), flowers (11.5%), roots (3.85%), and seeds (3.85%). Important cosmetic plants based on FL include Aquilaria malaccensis, Areca catechu, Dendrobium sp., Gluta renghas, Lansium domesticum, and Sindora sp. The high FL documented for cosmetic plants in this study needs further investigation into potential plants for use in the cosmetics industry.
Strengthening village forest management strategies in East Kolaka, Southeast Sulawesi, Indonesia
Authors: SETIAWAN MUHAMMAD REZA , NURROCHMAT DODIK RIDHO , PURWAWANGSA HANDIAN
Published: October 2024

Abstract. Setiawan MR, Nurrochmat DR, Purwawangsa H. 2024. Strengthening village forest management strategies in East Kolaka, Southeast Sulawesi, Indonesia. Biodiversitas 25: 2945-2959. The livelihoods of village communities in East Kolaka, Southeast Sulawesi, Indonesia, are intricately linked to managing forest resources for production, protection, and conservation. A key form of this community-based forest management is the Village Forest, a unique concept that encircles the forest. This study is particularly important as it evaluates the institutional conditions of Ueesi Village Forest management, Ueesi Sub-district, East Kolaka District, Southeast Sulawesi Province. It also proposes alternative strategies and strategic priorities for strengthening village forest institutions, strategies that are not just beneficial but also urgently needed for the sustainability of the communities. The study's findings underscore the need for the active participation of all stakeholders in this process. The study employed a qualitative approach and structured interviews with stakeholders or critical informants involved in the Ueesi Village Forest management. Technical analysis of Strengths, Weaknesses, Opportunities, and Threats (SWOT) and Quantitative Strategic Planning Matrix (QSPM) were used to identify the necessary management strategies. The study reveals that the most suitable strategy for strengthening village forest management institutions for Ueesi Village is a turn-around (WO) strategy, which leverages all external opportunities to address internal weaknesses. The main strategic priority is to create role models who can mobilize and encourage administrators of village forest management institutions and community members to actively participate in the Ueesi Village Forest's management actively, fostering a sense of shared responsibility. The low knowledge and capacity of village forest Management Institutions (LPHD) administrators and members and the lack of systematic government support are the reasons why LPHD Ueesi is not yet optimal. In addition to government support, support is also needed from NGOs, universities, and the business sector (BUMD and private). Therefore, it is crucial to design a strategy to strengthen appropriate management institutions to support the management of the Ueesi Village Forest, with the active involvement of all stakeholders.
Performance and yield stability of cayenne peppers (Capsicum frutescens) in multilocation trials in the Indonesian lowlands
Authors: SAYEKTI TRI WAHONO DYAH AYU , SYUKUR MUHAMAD , HIDAYAT SRI HENDRASTUTI , MAHARIJAYA AWANG , SOBIR SOBIR , AGUSTINA KARLIN , MAREZA EVRIANI , WAHYUDI ANUNG , SUPRIYANTA BAMBANG
Published: October 2024

Abstract. Sayekti TWDA, Syukur M, Hidayat SH, Maharijaya A, Sobir, Agustina K, Mareza E, Wahyudi A, Supriyanta B. 2024. Performance and yield stability of cayenne peppers (Capsicum frutescens) in multilocation trials in the Indonesian lowlands. Biodiversitas 25: 3008-3017. Cayenne pepper (Capsicum frutescens L.) plant breeding is becoming an increasingly interesting topic due to various usages. The diversity of uses of chilies needs to be balanced with high production and good product quality so that it can meet market needs. This experiment aimed to evaluate the performance and plant diversity of eight elite lines and six commercial varieties of cayenne pepper (C. frutescens) in three different environments. The development of location-specific superior genotypes can be guided to create varieties suited to the targeted environment. This study was conducted in three locations (environments) namely “Lampung”, “Yogyakarta” and “Palembang”. The experiment was conducted using a Randomized Complete Block Design (RCBD) with three replications for each location. Analysis of yield stability was conducted using three methods, namely “Francis-Kanneberg”, “Finlay-Wilkinson” and “AMMI” methods. Among the three locations, the Lampung location experienced a very significant yield loss. This is thought to be due to disease attacks on the plantations. Some genotypes are more suitable for planting at one of the test locations compared to the other two locations. However, there are two genotypes that are stable at three locations based on the three analysis methods used. Genotypes "F1.323340" and "F1.285290” were observed to be stable and produced well at all test locations. Both genotypes can be recommended for planting in lowland environment.
The relationship between habitat quality and the diversity of phytoplankton, zooplankton, and nekton in mangrove ecosystems of Bawean Island, Indonesia
Authors: RETNANINGDYAH CATUR , ARISOESILANINGSIH ENDANG , VIDAYANTI VIKY , SALSABILA QATHRUNNADA , PURNOMO PURNOMO
Published: October 2024

Abstract. Retnaningdyah C, Arisoesilaningsih E, Vidayanti V, Salsabila Q, Purnomo P. 2024. The relationship between habitat quality and the diversity of phytoplankton, zooplankton, and nekton in mangrove ecosystems of Bawean Island, Indonesia. Biodiversitas 25: 3017-3026. Mangrove ecosystem consists of biotic and abiotic components that interact with each other to form a food chain. This study aims to analyze the relationship between the diversity and abundance of phytoplankton, zooplankton, and nekton and water quality, human activities, and carbon stock in the mangrove ecosystem in Bawean Island. Data was collected from 11 sampling locations across the island. At each location, we observed the diversity of phytoplankton, zooplankton, and nekton and carbon stock of mangroves along with data of water quality (salinity, pH, dissolved oxygen/DO, biochemical oxygen demand/BOD, nitrate, orthophosphate, dihydrogen sulfide/H2S, dissolved lead/Pb) and human activities based on the hemeroby index. The research results showed that the level of DO, H2S, nitrate, and orthophosphate did not meet the quality standard according to the Indonesian government. The level of disturbance from human activities varied from ?-mesoherobic to metahemerobic categories. Human activities and higher levels of H2S in waters had a negative relationship with mangrove ecosystem carbon stock and the diversity and taxa richness of phytoplankton, zooplankton, and nekton. Phytoplankton diversity had a positive relationship with zooplankton, while zooplankton diversity had a positive relationship with nekton. High carbon stock in the mangrove ecosystem will likely increase the diversity of phytoplankton, zooplankton, and nekton. The result of this study implies that anthropogenic activities need to be controlled to improve the Bawean Island mangrove ecosystem services.
Metabolite profiling, in vitro antioxidant and a-glucosidase inhibitory properties of Timonius ternifolius leaves
Authors: VIVIT MAINGELLINE B. , BATUYONG RAMJEE G. , DAMIAN ALONDRA FAE T. , GAOAT CECILE A. , BELTRAN KRISTIAN GAY D. , ALEJO ANABELLE B. , CALARAMO MICHAEL A. , IBANA FRANKLIN V. , BATUYONG MAE ANN R.
Published: October 2024

Abstract. Vivit MB, Batuyong RG, Damian AFT, Gaoat CA, Beltran KGD, Alejo AB, Calaramo MA, Ibana FV, Batuyong MAR. 2024. Metabolite profiling, in vitro antioxidant and a-glucosidase inhibitory properties of Timonius ternifolius leaves. Biodiversitas 25: 3027-3034. The genus Timonius (Rubiaceae) possesses different pharmacological properties. One understudied endemic species under this genus from the Philippines is the Timonius ternifolius (Bartl. ex DC.) Fern.-Vill. Hence, this study investigates the physicochemical properties and phytochemical constituents of the leaf ethanolic extract (EE) and subjected to solvent partitioning to yield the following subfractions: hexane (HE), ethyl acetate (EA), and methanol (ME) extracts, which were utilized for the in vitro antioxidant, a-glucosidase and a-amylase assays. Quantitative tests of T. ternifolius leaves revealed the following physicochemical properties: herbal tea-like odor, fibrous and fluffy appearance, 50.07% moisture content, 3.10% total ash content, and a slightly acidic pH value of 5.13. The liquid chromatography-mass spectrometry (LC-MS) analysis has identified eight putative compounds namely glabrolide, aloinoside B, 2-benzyl octanal, geumonoid, (±) gomisin M1, 25-O-Acetyl-7,8-didehydrocimigenol-3-O-a-D-xylopyranoside, lucialdehyde B, and kadsuric acid. The extracts' concentrations of flavonoids, phenols, and terpenoids were 1.23±0.19 mg QE/g, 20.77±0.77 mg GAE/g, and 6.07±0.53 mg/g, respectively. Antioxidant profiling among the subfractions showed EE exhibiting the highest at 59.15±2.08 µg/mL (IC50 value). Moreover, significant a-glucosidase inhibition was noted in the EE extract at 99.74%, EA at 99.71%, and ME at 99.45%. The results showed that T. ternifolius leaves are a promising lead source of pharmacologically active compounds with antioxidant and antidiabetic activities, expanding information on plant-derived alternative treatments and developing medicinal products.
Antibacterial and biosurfactant activity of endophytic bacteria isolated from mangrove plant in Lamongan, Indonesia
Authors: FATIMAH FATIMAH , RAHAYUNINGTYAS NAZIL DWI , NASTITI ALIFAH , ALAWIYAH DELA DWI , RAMADHAN RICO , GERALDI ALMANDO , JUNAIRIAH JUNAIRIAH
Published: October 2024

Abstract. Fatimah, Rahayuningtyas ND, Nastiti A, Alawiyah DD, Ramadhan E, Geraldi A, Junairiah. 2024. Antibacterial and biosurfactant activity of endophytic bacteria isolated from mangrove plant in Lamongan, Indonesia. Biodiversitas 25: 3035-3042. This study aims to determine the antibacterial and biosurfactant activity of 61 endophytic bacteria from mangrove plants in Kutang Lamongan Beach. Antibacterial screening of supernatant of endophytic bacteria was performed using the disc diffusion method against Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 25923. The most potent isolate was identified using 16s rRNA. The chemical compounds of the most potent isolate were identified using GC-MS analysis. The data were analyzed descriptively. Biosurfactant activity was also performed on the most potential isolate. All the isolates showed inhibitory zones against E. coli and S. aureus. Isolate LMG-2 produced the highest antimicrobial activity, averaging 9.57±0.4 mm against E. coli and 8.87±0.36 mm against S. aureus. The biosurfactant activity of LMG-2 isolate produced a surface tension of 39.09+0.49 mN/m and emulsification activity of 65.03+0.03% against kerosene, 47.63+0.10% against crude oil and 46.53+0.27 to diesel. The isolate LMG-2 had 98,41% similarity with the Bacillus amyloliquefaciens strain NBRC 15535 with a query cover of 100%. The biosurfactant extract contains 9-octadecenoic acid methyl ester, (E)-, 9,12-octadecadienoic acid (Z, Z) methyl ester, and 9,12,15-octadecadienoic acid methyl ester. These compounds, known as Fatty Acid Methyl Esters (FAMEs), were integral components of biosurfactants, surface-active agents produced by microorganisms.
Factors influencing appearance and suitable habitat for wild elephants in the Khao Yai National Park, Thailand
Authors: NANLA YAMEERA , MAROD DOKRAK , DUENGKAE PRATEEP , PAANSRI PAANWARIS , NOOWONG JEDSADA , MANITOEM CHIRANAN , SUKMASUANG RONGLARP
Published: October 2024

Abstract. Nanla Y, Marod D, Duengkae P, Paansri P, Noowong J, Manitoem C, Sukmasuang R. 2024. Factors influencing appearance and suitable habitat for wild elephants in the Khao Yai National Park, Thailand. Biodiversitas 25: 3061-3072. Protected areas are designated to conserve biodiversity and provide a safe habitat for wildlife. This study aims to investigate the factors affecting elephant appearance and changes in habitat. The maxEnt program was used to analyze data derived from the patrolling system with constant quality monitoring. Four categories of environmental factors, climatic, physiological, biological, and anthropological factors were used to analyze the wild elephant data yearly from 2017 to 2022. The aim was to understand the effect of environmental factors on the wild elephants’ appearance and their habitat suitability. The results showed an average area under the receiver-operating-characteristic curve (AUC) was 0.81±0.004 SD. The results indicated that climatic (42.97%), physiological (32.62%), and anthropological (21.23%) factors affected the appearance of wild elephants significantly. Temperature factors showed the highest percentage contribution (39.04%), while water sources and salt licks, considered physiological factors, contributed 22.13% and 5.06%, respectively. Habitat suitability analysis revealed that the majority of the park area (64.91%) was categorized as unsuited and poorly suited habitat areas, while 35.07% was categorized as moderated and well-suited habitat areas for wild elephants. Implementing strategies to improve water sources and salt lick sites within the park and managing the area to minimize human disturbance both on the surrounding boundaries and the tourist destination sites are recommended to manage the wild elephant.
Using macrobenthic community structure and biotic indices to assess the ecological status of Wulan Estuary, Demak, Indonesia
Authors: HARTATI RETNO , WIDIANINGSIH WIDIANINGSIH , ZAINURI MUHAMMAD , WARDIATNO YUSLI
Published: October 2024

Abstract. Hartati R, Widianingsih W, Zainuri M, Wardianto Y. 2024. Using macrobenthic community structure and biotic indices to assess the ecological status of Wulan Estuary, Demak, Indonesia. Biodiversitas 25: 3073-3087. Estuaries provide critical habitats for species, and they are valued commercially, recreationally, and culturally. They also filter for sediments and pollutants from rivers before entering the ocean, providing cleaner waters for marine biota. This study presents a unique approach to assessing the ecological status of an estuary using microbenthic community structure and biotic indices with a case study of Wulan Estuary, Demak District, Central Java Province, Indonesia. AZTI’s Marine Biotic Index (AMBI) community structure and biotic indices were used to assess ecological quality at eleven stations and determine the marine macrobenthic fauna's sensitivity to disturbances in two periods, i.e. August 2021 and 2022. A distinct spatial and temporal variation was evident in the macrobenthic community structure, where higher species richness and density were observed in 2022, with some species being more dominant in 2022. The trophic structure analysis showed the dominance of deposit-feeding bivalves in the fine sediments during those sampling intervals. These trophic groups, however, were dispersed less uniformly in the sandy substratum. Compared to the previous year, the density of herbivorous grazers and suspension feeders was higher in 2022. It is also shown by AMBI values that Wulan Estuary belonged to the good (slightly disturbed) to the high (undisturbed) condition, along with other biotic indices, which showed an enhanced habitat quality for benthic organisms. This result revealed the comparative ecological quality of related estuary ecosystems in Indonesia.
Leaf beetle Phyllotreta striolata (Coleoptera: Chrysomelidae): Biology and infestation on Chinese flowering cabbage Brassica rapa var. parachinensis in Bogor, West Java, Indonesia
Authors: LAIA DIAN AGUNG SANORA , MARYANA NINA , WINASA I WAYAN
Published: October 2024

Abstract. Laia DAS, Maryana N, Winasa IW. 2024. Leaf beetle Phyllotreta striolata (Coleoptera: Chrysomelidae): Biology and infestation on Chinese flowering cabbage Brassica rapa var. parachinensis in Bogor, West Java, Indonesia. Biodiversitas 25: 3099-3105. Chinese flowering cabbage (Brassica rapa var. parachinensis L.) holds significant economic value and provides essential nutrition. Bogor District, a primary region for vegetable production in Indonesia, faces a severe issue due to the leaf beetle Phyllotreta striolata Fabricius 1803 infestation on Chinese flowering cabbage plants. However, research on this pest in Indonesia is still limited. Observations on the biological aspects of P. striolata involved collecting and identifying adult P. striolata from Chinese flowering cabbage fields, along with biological observations focusing on the beetle's morphology and developmental stages. Population calculations of adult beetles and evaluation of P. striolata infestation intensity on Chinese flowering cabbage plants were conducted in four sub-districts in Bogor District. The average life cycle of this beetle was 27.15 days. The study revealed that the adult stage lasted an average of 119.10 days, with an average preoviposition period of 3.08 days. Adult populations tended to decrease with the age of Chinese flowering cabbage plants due to environmental factors and food source availability. Infestation intensity varied across locations, with Leuwimalang showing the lowest intensity (23.56%) and Laladon the highest (48.76%). These differences suggest that the environment in Leuwimalang may support the resistance of Chinese flowering cabbage plants to leaf pest attacks.
A promising strategy for conservation of endemic plant Euonymus koopmannii
Authors: GUBAIDULLIN NURTAI , KALI BALNUR , TUSSIPKAN DILNUR , MANABAYEVA SHUGA A.
Published: October 2024

Abstract. Gubaidullin N, Kali B, Tussipkan D, Manabayeva SA. 2024. A promising strategy for conservation of Central Asian endemic plant Euonymus koopmannii. Biodiversitas 25: 3114-3120. Cryopreservation of endemic plants is necessary to safeguard the biodiversity and genetic resources of unique species that may face extinction due to climate change or human activities. This process enables the long-term preservation of their genetic information and ensures the possibility of restoring these species. Euonymus koopmannii Lauche is, known as E. nanus var. turkestanicus, is a native to Kazakhstan and other Central Asian countries. The E. koopmannii is listed in the Red Book of Kazakhstan and has ecological importance in soil stabilization and its decorative value. This study aims to contribute to the conservation efforts of E. koopmannii by establishing an effective cryopreservation protocol for its meristems. This study has identified for the first time an optimized cryopreservation protocol for E. koopmannii meristems involving specific treatment durations and osmotic solutions. The protocol resulted in a significantly higher survival rate (60%) when meristems were precultured with 0.3 M sucrose, treated with Plant Vitrification Solution 2 for 30 min., and regenerated on a medium with 20 g/L sucrose. Secondly, a comparative analysis of cryopreserved regenerates with a control group has revealed that cryopreservation negatively impacted the plant height but significantly increased the number of meristem shoots and roots. This finding highlights the trade-off between growth and root development in cryopreserved plants. Thirdly, the presented optimization of the cryopreservation protocol provides valuable insights for the preservation and regeneration of E. koopmannii meristems. It emphasizes the critical importance of precise treatments and the composition of the nutrient medium to achieve successful cryopreservation and subsequent recovery of plants in tissue culture. This research provides essential information for conserving E. koopmannii, shedding light on the intricate balance required to apply cryopreservation techniques effectively.