bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengukuran Kadar Ekstraktif dan Sifat Warna pada Kayu Teras Jati Doreng (Tectona grandis)
Authors: Lukmandaru Ganis
Published: August 2023

Measurement of Extractive Content and Color properties on Black-streaked Heartwood of Teak (Tectona grandis)Teak (Tectona grandis L.f) in certain areas of Java usually has black streaked heartwood or has been known as "doreng". In general, the color of wood is related to the kinds and amounts of extractives, therefore, black streak that appeared on the heartwood was studied by means of color measurements and the determination of extractive content. The study was made with 13 trees of black streaked heartwood and 5 trees of normal heartwood. The wood powder (40-60 mesh) was extracted successively with ethanol-benzene (1:2, v/v) for 8 h and hot water for 3 h. The used system of color measurements was CIEL*a*b* which represents brightness, redness and yellowness. The discolored wood was contained substantially more ethanol-benzene soluble extractive content (12 - 22%) than did the normal heartwood (7 - 11%). The yield differences of hot-water soluble extracts were not as pronounced. Beside the brightness (L*), the differences in redness (a*) and yellowness (b*) between the normal (L* = 51-61, a* = 4 to 7, b* = 24 to 28) and black streaked heartwood (L* = 42-51, a* = 6 to 9, b* = 20 to 25) before the extraction, were notable. The total color differences ( E*) before and after extractions, however, were not significantly differed between the discolored ( E* = 6 to 13) and normal heartwood ( E* = 5 to 11) parts. Correlation analysis revealed strong correlations between ethanol-benzene soluble extractive content with L* (r = -0.97) and b* (r = -0.94). The hot-water soluble extract was moderately correlated with a* (r = 0.54) and the difference in redness ( a*) before and after extractions (r = 0.75).
A Review of Relationships Between Wood Quality and Silvicultural Practices
Authors: Listyanto Tomy , Nichols John Doland
Published: August 2023

The effect of silviculture on wood quality has been approached from different perspectives. This relationship is being a critical concern of forest managers, landowners, and also researchers. Reliable information is needed to support forest managers in predicting the consequences of various silvicultural practices in terms of quantity and wood quality.Wood has beed used for a variety of products. Each product has particular requirements regarding quality. The variation of wood quality requirement allows industries to decide to use timber resource appropriate for their products. Silvicultural practives cover all treatments applied in forest stand management especially to improve the quality of stand, including manipulation of the availability of sunlight, nutrient and water by using several treatments such as thinning, control of spacing, fertilizing, and pruning. The quality of stand is aimed to achieve particular forest management objectives including higher wood quality.There is no broad generalization regarding the relation between silvicultural practice and wood quality. Many investigators showed positive results in relation to producing high quality of wood products, while other researchers revealed negative effects. Reliable information is needed to support forest managers in predicting the consequences of various silvicultural practices in relation to the wood quantity and quality. Continuous research is needed to find methods of producing wood of high quality based on silvicultural practices and genetic improvement which can be used in wider area by considering limitation including environment and geographic variation.
Bio-Economic Perspective to Fuelwood Policy Options in Uganda: A Demand–Supply Nexus
Authors: Mukadasi Buyinza , Sowedi Masaba
Published: August 2023

This study examines the benefits and costs of selected policy options for increasing fuelwood supplies or decreasing fuelwood demand in Hoima district, Uganda. On the supply side, a benefit-cost analysis is done on a government sponsored tree farming project. In order to reduce the demand for fuelwood, two demand-side options are considered, namely, introduction of an improved energy-efficient woodstove, and the substitution of a kerosene stove for a traditional woodstove. Greater understanding of the linkages among these factors requires a systems approach. We have proposed such an approach using a non-linear dynamic programming model to explore the system behaviour of forest degradation. Our results show that tree-farming is one of the possible approaches to increase the supply of fuelwood (energy), while the woodstoves and kerosene substitution are policies that reduce the demand for fuelwood. This helps to alleviate the rural energy shortage and take some pressure off existing protected forest areas. The tree cover in the forest areas declined by 6% in the BASE scenario, 4.8 % in POPG scenario and 4.7% in TECH scenario, indicating an overall trend of forest degradation in the Hoima district under each of these scenarios. Reductions in the population growth rate, introduction of improved agricultural technology and increase in the prices of major agricultural crops can help slow down the rates of forest decline. This study does not attempt to analyse the wider energy planning program that would be needed to understand accurately the various alternatives available in Uganda.
Alokasi Pengeluaran Rumah Tangga Penyadap Getah Pinus di Desa Somagede, Kabupaten Kebumen Jawa Tengah
Authors: Cahyono S. Andy , Nugroho Nunung Puji , Indrajaya Yonky
Published: August 2023

Expenditure Allocation of Resin Tapper`Households in Somagede Village, Kebumen Regency, Central JavaPine forest has contributed to local people economy, especially the resin tappers. Increasing income will raise the household expenditure both of consumptive and productive needs. This research was aimed to assess the expenditure allocations of resin tappers’ household and to identify the factors affecting them.Survey method was adopted in this research to collect the primary data of 30 respondents. The collected data was analyzed both quantitatively and qualitatively. Multiple linear regression model was applied to figure out the factors affecting the expenditure allocations of resin tappers’ household.The results of the study indicated that the expenditure of resin tappers’ household reached to Rp 2,366,459 per annum and 58,08% of it was food and beverage expenditure. The expenditure allocations were affected significantly by tappers’ age, food and beverage expenditure, and farm land size. The tappers’ age, food and beverage expenditure had a positive effect whereas farm land size had a negative effect on the household expenditure.
Pengaruh Variasi Penambahan Ragi dan Lamanya Waktu Fermentasi terhadap Hasil Fermentasi Etanol dari Serbuk Gergajian Kayu Ulin (Eusideroxylon zwageri T et B)
Authors: Jauhari Ahmad , Sari Noor Mirad
Published: August 2023

Effect of  Variation yeast addition and Duration of Fermentation on the Amount of Ethanol Produced from Sawdust of Ulin Wood (Eusideroxylon zwageri T et B)The research was aimed to assess the influence of different levels of yeast addition and duration of fermentation on the amount and percentage of ethanol produced from sawdust of ulin wood as raw material.Method used in this experiment was chemical hydrolysis of cellulose by using nitric acid (HNO3) as chemical agent. This substrate was inoculated into yeast cell (khamir) to convert glucose into ethanol. The amount of ethanol (ml) was obtained from distilled water (ml) multiplied by the azeotropic value of ethanol (95,5%), while the value  ethanol (%) obtained was from the amount of ethanol (ml) divided by the amount of distilled water (ml) multiplied by 100 percent.The study used a factorial design of 3 x 3 with 3 replications and the parameters used were A factor (amount of yeast) consisting of 5, 10, and 15 grams, respectively, and B factor (duration of fermentation) consisting of 1, 3, and 5 days, respectively. Significant differences of ANOVA at test levels of 5% and 1% will be continued by interaction test between the two factors to assess the influence of each factor on the amount and percentage of ethanol.Results indicated that the amount of yeast applied, duration of fermentation and interaction between the two gave very significant effects on the amount of ethanol (ml) and its percentage (%). Following the treatment on ulin wood sawdust, the lowest yield of ethanol was found at A1B1 treatment (5 g, 1 day) with. 1.69 ml, while the highest at A3B3 treatment (15 g, 5 day) with 5.19 ml. In terms of ethanol percentage, the lowest was found at A1B1 treatment with 9.4% and the highest at A3B2 treatment with 29.9%.
People Attitude Toward Promotion of Agroforestry Practices in Buffer Zone Area of Mt. Elgon National Park, Uganda
Authors: Mukadasi Buyinza , Wambede Nabalegwa
Published: August 2023

Agroforestry is a historical practice in Uganda where people raised trees, crops and animals together traditionally on the same unit of farmland. This study was conducted to assess the attitude of people regarding the contribution of agroforestry practices in socio-economic development in the buffer zone area of Mutushet and Kortek, Mt. Elgon National Park, Uganda.Primary data were collected through formal household interviews with the use of a structured questionnaire administered to five percent households selected randomly in the Village Environmental Committees (VECs). In addition, key informant interviews and informal group discussions were also held. Altogether 146 households were interviewed. Data were analyzed using Chi-square test.Results show that the attitude of people towards contribution of agroforestry practices is independent of VECs, ethnic group, settlement period, and family size and depends on occupation, literacy level, distance from National Park boundary, damage caused by wild animals, land holding size and number of livestock holding. The important policy recommendation drawn from these findings is that intensive extension and motivation programs should be launched in those areas where the majority of people have unfavourable attitude towards agroforestry practices.
Pengaruh Pola Susunan Laminasi Balok Bambu Tali (Gigantochloa apus Kurz) terhadap Kerapatan, Delaminasi dan Keteguhan Patah
Authors: Mahdie Muhammad Faisal , Rinaldi Andy
Published: August 2023

Effect of Lamination Pattern of Tali Bamboo (Gigantochloa apus Kurz) Beam  on Density, Delamination, And Rupture StrengthBamboo is a potential species as its price is relatively less expensive than wood logs while it also represents a fast growing plant and is easy to plant. In general bamboos in South Kalimantan have not been exploited optimally. Its utilization for construction purposes is very limited. This study aims to identify the effects of lamination pattern on the density, delamination and rupture impregnability (Modulus of Rupture, MoR) of laminated bamboo blocks, with the combinations of a (reed wall- reed wall), b (reed wall-husk), and c (husk- husk and reed wall-reed wall). The results showed that lamination patterns affected the density, delamination and rupture impregnability of the laminae produced. The average density (kg/cm3) is 0.5321, 0.6923, and 0.6746 for treatments a, b, and c respectively. Delamination percentage (%) is 6.55, 16.65, and 21.1, while the rupture impregnability level (kg/cm2) is 228.99, 152.09,and 171.97 for treatments a, b, and c respectively. Delamination percentage of less than 10%  suggets that the laminae produced can be used for building construction. that It is concluded that lamination pattern of reed wall-reed wall gave the best performance of bamboo lamina with the average density of 0.5321 kg/cm3, the delamination percentage of 6.55% , and the rupture impregnability level of 228.99 kg/cm2.
Tingkat Kesukaan Rusa Bawean (Axis kuhlii) terhadap Jenis-Jenis Tumbuhan Bawah di Suaka Margasatwa dan Cagar Alam Pulau Bawean
Authors: Subrata Sena Adi , Jauhar Muhammad Faddel
Published: August 2023

Level of Food Preference of Bawean Deer (Axis kuhlii) on Food Species in Wildlife Sanctuary and Nature Reserve of Bawean IslandThis research has a background on the importance of food preference of Rusa Bawean (Axis kuhlii). This information can be used to ensure the adequacy of preferred food availability within their habitat. This paper aimed to estimate food preference of Rusa Bawean employing faecal analysis. The technique was selected because it is safe for the animal and is easy in data analysis and interpretation. To achieve the aim, quasi experimental design was applied to 30 vegetation plots and 60 faecal samples. Data was collected during January 2005 and June 2006 in the area of Wildlife Sanctuary and Nature Reserve of Bawean Island. Data was analyzed with chi-square test and food selection index. Result shows Rusa Bawean have preferences on some of food species, and they do not select their food species randomly according to its abundance.  Preferred food species include Kabak-kabakan alas (Brachiaria distachya), Talioar (Panicum cordayum), Gadung (Dioscorea hispida), Andudur (Caryota mitis), Rombok putih (Merremia peltata), Pele (Urena lobata) and Kabak-kabakan merah (Ischaemum timorense). Whereas avoided food species include Lating-latingan (Scleria hebecarpa), Ancucu (Pericampylus glaucus), Lambu Merah (Paspalum conjugatum), Alang-alang (Imperata cylindrica), Padi-padian (Centotheca lappacea), Lente-lentean (Fimbristylis dichotoma), Taliata (Lygodium circinnatum ) dan Kayu sape (Symplocos adenophylla).
Pengaruh Ekstrak Tembakau terhadap Serangan Rayap Kayu Kering Cryptotermes cynocephalus Light pada Bambu Apus (Gigantochloa apus Kurz)
Authors: Hadikusumo Sutjipto A
Published: August 2023

Effect of Tobacco Extracts on   Apus Bamboo (Gigantochloa apus Kurz)  resistance  against  Drywood Termite Cryptotermes cynocephalus Light (Gigantochloa apus Kurz) AttacksBamboo is one of community forest products and people use it for many purposes. Due to insect attack such as termite, the life time of bamboo product is short. To avoid chemical pollution in bamboo preservation process, tobacco extract was used.Tobacco was extracted in water, in the amounts of 100, 150 and 200 g in 1 l of water, at  temperature of 70-80°C for 3 hours. Bamboo trees were cut, the bottom parts were soaked in tobacco extract solution for 1, 3 and 5 days. Samples were cut into 5 cm x 3 cm x bamboo thickness at the bottom, middle and upper parts of the bamboo tree. After being air dried, each sample was exposed to 50 dry wood termites in a small glass tube for two months.The results showed that bamboo preservation by diffusion with high concentration of tobacco extract (200 g tobacco extracted in 1 l of water) resulted in 61% termite mortality.
Ecological and Socio-Economic Contribution of Mt. Elgon Forest Park, Eastern Uganda
Authors: Mukadasi Buyinza
Published: August 2023

This paper explores the ecological and socio-economic contribution of Mt. Elgon forest park, eastern Uganda. An effort was taken to evaluate the importance of Mt. Elgon forest park resources to the local people by using the local plant knowledge to value the forest park resources. An integrated approach of participatory rural appraisal (PRA), Participatory Resource Valuation (PRV), household survey, group discussions and forest walks were conducted during the months of June to December, 2008 in Mutushet and Kortek Parishes, Kapchorwa District. Using random sampling methods, 120 respondents were selected and interviewed. Ten forest uses were identified with the highest dependence being in the supply of timber for income and domestic building poles, the latter having the highest average annual household value of UGx. 67919 (US$37). The forest use most valued in both Mutushet and Koterk was medicine with an average annual household value of UGx. 60,371 (US$ 33) and UGx. 75,464 (US$ 42) respectively. The forest provision of medicine, domestic building materials, soil conservation, bush meat, charcoal and timber was more valued in Koterk, while provision of firewood, honey and pasture were more valued in Mutushet. The forest’s provision of food was valued equally in the two areas with an average annual value of UGx. 30,186 per household. Forest park resources accounted for 55% of the household income. Participatory valuation approaches are ecommended for estimation of forest park resources’ value in a non-cash economy.
Studi Kenyamanan untuk Aktivitas di Lanskap Hutan Kota UGM Studi Kasus: Klaster Agro UGM
Authors: Irwan Siti Nurul Rofiqo , Kaharuddin Kaharuddin
Published: August 2023

A Study of Comfort for Activities in Urban Forest Landscape of UGM; Study Case: Agro Cluster UGMThe phenomenon of global warming has caused discomfort activity in urban area. Greening in open space of Gadjah Mada University campus has been developed as urban forest landscape that supporting good environment produced high comfort for activity and enhancing urban conservation. The research objectives were to observe the comfort for activity in urban forest landscape, to observe the canopy coverage of urban forest and to reveal the effect of tree canopy coverage to the comfort for activity. Data collection was carried out by visual observation, questioner, micro climate measurement, and hemispherical images of the tree canopy coverage. Data were analyzed by descriptive statistics. The tree canopy coverage was calculated by the Sky View Factor (SVF) of hemispherical images. Research results showed that activity types in the urban forest landscape were study (10%), sitting (37%), meeting (39%), others (14%) at spread of sitting areas. Some factors that affect the comfort for activity in urban forest landscape were aesthetic, lower temperature, fresh air, inspirited area, and listened bird voice. The respondents (82%) said that the urban forest landscape was comfort for activity at whole time of 07.00 - 17.00 by the condition of local climate presented by air temperature at 29.7 - 32.6°C, normal humidity at 61.5 -74.1% and breeze wind velocity at 0.6 - 2.8 m/s. Tree canopy of urban forest landscape had covered more than 50% identified by Sky View Factor (SVF 0.026-0.446). The tree canopy coverage of urban forest created tree shaded areas for the activities which showed thermally comfort because of microclimate controlled by urban forest.
Penentuan Tingkat Kompetisi Tajuk Tegakan Jati Hasil Uji Keturunan Umur 11 Tahun di KPH Ngawi
Authors: Sadono Ronggo , Silalahi Meifrida Lasmaria
Published: August 2023

Determination of  the Competition Level for Growing Space of Teak Canopy from 11-year- old Progeny Test in KPH NgawiThe increasing demand of teak wood should be followed by the increasing of teak forest productivity through intensive silviculture, especially growing space manipulation. The main objective of this research was to determine the growing space competition.The material was measurement data from eleven year progeny test located at the compartment 49a, RPH Sidowayah, BKPH Kedunggalar, KPH Ngawi. The growing space competition was calculated using Hegyi’s competition index. Superior trees were selected to determine competition zone of the subject tree and this result was proposed to calculate the competition index of all trees. Based on the correlation between competition index and tree height, vertical structure was then classified using k-means cluster.Based on 300 superior trees, the competition zone could be determined using reference angle of 66°. The competition index was vary in between 0.00 and 4.23 with average value of 1.18. The correlation between the index and the tree height was found to be low with r = -0.227. Based on this correlation, the vertical structure was classified into four level namely dominant, co-dominant, medium, and suppressed respectively.
Keberhasilan Okulasi Jati (Tectona grandis L.f.) Hasil Eksplorasi di Gunung Kidul
Authors: Indrioko Sapto , Faridah Eny , Widhianto Aan Yuli
Published: August 2023

Grafting Success  Story of Teak (Tectona grandis L.f.) from Exploration Material in Gunung KidulTeak exploration as planting material source of superior genotype is necessary for hedge orchard establishment for forest communities in order to produce the planting material by themselves. The objective of this study is to identify the success and growth of teak grafting resulted from exploration in Gunung Kidul region.The exploration aimed to collect teak ortet (mother tree). The ortets would be used as materials for hedge orchard, as the cutting source for community forest plantation. The study was conducted in Gunung Kidul region (for exploration) and in the Laboratorium on Intensive Silviculture, Silviculture Department, Faculty of Forestry UGM. In the laboratory, the first three months was to examine grafting compatibility, and the second three months to monitor the growth of teak grafting. The experiment in the laboratory was performed with Completely Randomized Design (CRD), with treatment of 16 clones and 10 treeplot replication each, making total of 160 clones.The study resulted in the following: 1) from the exploration, there were 52 clones having good genotypes; 2) from the 52 good-genotype clones, there were 16 clones having good compatibility; 3) in the period of 3 months, the best height growth was shown by clone number 6 with 27 cm; the best diameter growth by clone number 5 with 0.252 cm, and in term of leaf number, the best was shown by clone number 15 with 9.2 blades. In general clone number 6 showed the best compatibility and growth, with sprout life percentage of 37.03%; height growth of 2.7 cm; diameter growth of 0.114 cm and leaf number of 9.2 blades.
Kajian Ekonomi Biokraft Campuran Batang dan Limbah Cabang Mangium pada Berbagai Kondisi Pemasakan Pulp
Authors: Silsia Devi , Yahya Ridwan , Mucharromah Mucharromah , Antonio Jerry
Published: August 2023

Pemberian jamur P. chrysosporium pada serpih campuran batang dan cabang mangium sebelum dipulping (biopulping) mampu meningkatkan efisiensi penggunaan bahan kimia pemasak, menghemat penggunaan energi serta memperbaiki kualitas dari limbah cair pulp yang dihasilkan. Sebelum diaplikasikan dalam industri pulp maka metode ini harus dikaji secara ekonomi. Penelitian ini bertujuan untuk menentukan proses biokraft yang menguntungkan untuk diaplikasikan pada industri pulp. Dalam penelitian ini dilakukan perhitungan terhadap seluruh biaya yang dikeluarkan (capitalized cost) per ton pulp yang dihasilkan dari metode biokraft dengan modifikasi pemasakan pengurangan bahan kimia, pengurangan energi dan kombinasi pengurangan bahan kimia dan energi. Hasil yang diperoleh dibandingkan dengan biaya yang dikeluarkan pada proses kraft konvensional. Hasil penelitian menunjukkan bahwa metode biokraft dengan modifikasi pengurangan energi layak diaplikasikan pada indusri pulp karena memiliki CC/ton pulp terkecil yaitu Rp. 50.952.915,15 /ton pulp sepanjang kenaikan biaya operasi biopulping dalam rentang 5-30%.Kata kunci: Biokraft, A. mangium, analisis ekonomi, pulp. An Economic Study of Biokraft From Mixed  of Trunk and Branch Wastes of Mangium on Several Pulping Process ConditionsAbstractAddition of P. chrysosporium fungus on chip mixture of mangium trunk and branch before pulping process could increase the efficiency of chemical used, save energy consumption and improve the quality of effluent. Before application in the pulp industry, it should be made sure that biokraft method of mangium trunk and branches mixture is economically feasible. This study aims to determine the proper biokraft process applied to the pulp industry. In this study, costs incurred from biokraft modified cooking methods (chemical reduction, energy reduction and the combination of chemicals and energy reduction) were calculated, capitalized and then compared with the cost incurred from conventional kraft process.The results showed that biokraft method with modifications on energy reduction was economically feasible to be applied in pulp industry because it has the smallest CC/ton of pulp (Rp. 50,952,915.15 /ton of pulp) on condition that an increase of biopulping operating cost is in the range of 5-30%.
Sertifikasi Phenyl: Persepsi Masyarakat dan Dampak Sertifikasi pada Pengusahaan Hutan Skala Lokal (Studi Kasus di Kelurahan Selopuro dan Desa Sumberejo, Kecamatan Batuwarno, Kabupaten Wonogiri, Propinsi Jawa Tengah)
Authors: Yuwono Teguh
Published: August 2023

Phenyl Certification: Public Perception and Impacts of Certification of the Local Scale Forest Management (Study Case in Selopuro and Sumberejo Villages, Batuwarno Sub District, Wonogiri Regency, Central Java)In 2002, Indonesian Ecolabel Institution (LEI) established the so-called Sustainable Community Based Forest Management Certification system (PHBML). In 2004, with a PHBML certificate award, the community forest management units in Selopuro and Sumberejo villages, Batuwarno sub district, Wonogiri Regency, Central Java were anknowledged as the best institution in sustainable yield function, social function, and ecological function aspects. This research was aimed to find out the community's kind of perception, as well as that of KPS (Certification Farmer Community) officials and members in particular, to PHBML certification implementation. Also, the study was intended to discover the impact of PHBML certification upon the local scale forest management.The research findings indicated that the community's level of understanding to PHBML certification was poor when compared with that of KPS officials. This condition due to the official failure to share the knowledge they had receivedfrom NGO with the KPS members. With PHBML certification, the institutional management by forest farmers had been proven improved however, there have not been yet any significant improvement to farmer income, and to forest product marketing. In addition to this, what was meant by significance, did not fully answer the farmer expectation of better sustainable forest principle realization.
Pemanfaatan Serbuk Kayu untuk Produksi Etanol dengan Perlakuan Pendahuluan Delignifikasi Menggunakan Jamur Phanerochaete Chrysosporium
Authors: Irawati Denny , Azwar Norman Razief , Syafii Wasrin , Artika I Made
Published: August 2023

Utilization of Sawdust to Produce Ethanol Using Delignification Pre-treatment with White Rot Fungi Phanerochaete chrysosporiumCurrently, Indonesia is in the middle ofpetroleum crisis. One ofthe alternative fuels which can be used as a petroleum substitute is ethanol. Ethanol can be produced from timber waste (sawdust). Indonesia in 2003 had timber waste potency of about 3-4 millions m3. However, ethanol production from sawdust has problems due to its lignin content. Therefore, research on bio-delignification treatment of sawdust prior to ethanol making process is required. In the present study ethanol was produced by simultaneous saccharification and fermentation (SSF) using crude cellulose from Trichoderma viride and Saccharomyces cerevisiae. The raw materials for ethanol production are sengon (Paraserianthes falcataria (L.) Nielsen syn.), meranti (Shorea sp.) and teak (Tectona grandis LIIVN.f.) sawdust after pretreatment with white rot fungi Phanerochaete chrysosporium for 10, 20 and 30 days incubation time. The yield of ethanol was between 1.65-44.83 g/1. The best combination treatment is sengon sawdust with 30 day incubation time.
OPTIMIZATION OF COLONY POLYMERASE CHAIN REACTION FOR THE 16SRRNA OF DIFFERENT STRAINS OF ESCHERICHIA COLI
Authors: ULLAH AMIN , BASHIR AQIB , REHMAN BILAL , NAEEM WAFA , ZARA SHAH SAMAN
Published: August 2023

Objective: This work aimed to enhance colony polymerase chain reaction (PCR) for the 16S rRNA of several Escherichia coli strains.
Methods: The isolation of E. coli is done from the gut of the chicken and soil. Then, we optimized the condition for colony PCR for the amplification of 16s ribosomal RNA. We successfully designed primer 3 for 16s ribosomal RNA and made the dilution solution with PCR grade water that is 1:10. Moreover, finally, we made a 20 μL solution that contains the master mix of our isolated colony and forward and reverse base primer for amplification. After the conventional PCR, the amplified 16s ribosomal RNA was then run on Gel to obtain the desired bands. And finally saw the bands in the Gel Doc picture.
Results: Our result shows that the technique of colony PCR is an efficient and quick method than other existing methods that are too costly, tedious, and time-consuming procedures that deter their exploitation in various experimentations and for the identification of E. coli strains.
Conclusion: This study concluded that 16s ribosomal RNA can be amplified without the extraction and purification of total genomic DNA from a bacterial colony using colony PCR. Therefore, by designing rRNA primers for E. coli species, we can evaluate their various types of mutations, strain detection, and antibiotic resistance.
Body Image and Identity: A look into select short stories of Bhabendra Nath Saikia
Authors: Das Banani
Published: August 2023

The human body has been theorized in many ways, including the entire notion of the woman as a human creation. It is generally agreed that this concept refers to our perceptions, thoughts, and feelings about our bodies, which influence our behaviour about our bodies. The article examines numerous authors whose individual genealogies meet on the common ground of identity theory and women's lives and is supported by a theoretical framework based on conceptions of identity, body-image and self-image in women and feminist discourse. This paper probes into the concepts of identity in women through the literary canvas of Dr. Bhabendra Nath Saikia and demonstrates the effects of body image and self-image on the development of identity. Of course, an extensive discussion of the short stories of Dr. Saikia is beyond the scope of this paper. The aim of this paper is to analyse the concepts through the two short stories short titled "Dhura Xaap" (ঢোৰা সাপ 1958) and "Sringkhol" (শৃংখল, 1970) by Dr, Bhabendra Nath Saikia. The paper seeks to explore the concepts of self-image, identity and body image through three female characters ‘Chandrika’, ‘Janeki’ and ‘Ambika’.
Environment Protection and Regulations in Industrial Cluster (IC) Development - A Case in Hanoi Vietnam
Authors: Hai Nguyen Xuan , Huy Dinh Tran Ngoc , Nuong Le Ngoc , Hien Dinh Tran Ngoc , Trung Nguyen Dinh
Published: August 2023

Production and business establishments in industrial clusters (CCNs) have opportunities and conditions to increase productivity and reduce costs through taking advantage of geographical proximity. At present, some CCNs and the majority of CCNs are established and developed on the basis of value chain of production and product supply. Therefore, CCN has promoted cooperation, association and increased competitiveness of production and business establishments in the cluster. According to Michael Porter, CCNs have the potential to affect competition in three ways: i) By increasing the efficiency of firms in the Cluster; ii) By regulating innovation in the region; iii) By encouraging businesses in the area. Therefore, CCN is the nucleus that promotes regional and local socio-economic development.
Cuidados paliativos: competencias enfermeras para favorecer muerte digna en pacientes críticos. Una revisión sistemática
Authors: Pérez Ramírez Luis Alberto , Cahuich Tzuc Tiffanny Angpelica , Puc Catzím Anahi Aracely , May Uitz Saul , Puch Kú Eloisa Beatriz del Socorro
Published: August 2023

Introducción. Los cuidados intensivos se caracterizan por el uso de recursos tecnológicos y tratamientos especializados a pacientes críticamente enfermos que en su mayoría pasan a considerarse fuera de posibilidades terapéuticas. Objetivo. Analizar las competencias profesionales de enfermería en cuidados paliativos para favorecer una muerte digna del paciente crítico a través de una revisión sistemática. Metodología. Investigación cualitativa, tipo revisión sistemática, pregunta en formato Población, Intervención, Outcomes, siguiendo criterios del PRISMA 2020, los términos se tradujeron con Descriptores en Ciencias de la Salud. La búsqueda se realizó en las bases de datos LILACS, PubMed, ENFISPO, MEDES y Epistemonikos, utilizando el operador booleano AND. Se realizó la lectura crítica con la plantilla cualitativa CASPe, basándose en los criterios de rigor metodológico; y se realizó la gradación con las escalas de la CTFPHC. Conclusión. Se evidencia la importancia de formar profesionales capaces de afrontar con las necesidades que demanda un paciente en la etapa final de la vida, y de su familia, siendo enfermería fundamental para el proceso de la muerte. La enfermera es un elemento clave para humanizar el proceso de morir en la UCIA, y los Cuidados paliativos tienen poca relevancia desde el proceso de formación educativa hasta la etapa laboral, considerándose un tema de poco interés y practicándose de forma empírica, debido a falta de protocolos y poca o nula preparación, abriendo una brecha de oportunidad hacia la formación en cuidados paliativos.
Narrativa en enfermería: la visión de Joyce Travelbee desde una experiencia estudiantil enfermera
Authors: Sánchez Carmona Silvia , González Irineo Mariel Nohemí
Published: August 2023

Introducción. La práctica de enfermería domiciliaria se encarga de instruir al paciente y a la familia sobre las habilidades, estrategias de autocuidado y actividades para preservar y promover la salud; por lo que este profesional vive y expresa desde su actuar, el sentir enfermero. Para Joyce Travelbee, la enfermera y paciente desarrollan una relación entre seres humanos, destacando que en el cuidado el relieve es la empatía, la compasión, la transferencia y los aspectos emocionales de la enfermería. Desarrollo. Se realizó una narrativa de enfermería desde una situación vivencial de una estudiante de enfermería de pregrado, en la curación de herida domiciliaria durante pandemia. El metaparadigma de enfermería se analizó a través de los conceptos: persona, salud, cuidado y entorno; contemplando los cuatro tiempos propuestos por Anne Bookin & Savina Schoenhoffer, así como los Patrones de Conocimiento en enfermería. Examinando la relación entre el paciente y su familia, el manejo de la situación y el actuar enfermero empleado desde la visión de Joyce Travelbee. Conclusión. Esta experiencia permitió desde la narrativa, reflexionar sobre la habilidad y confianza para realizar cuidados de enfermería durante la formación académica profesional. El análisis de esta experiencia impulsa a todos aquellos aspirantes a enfermería, a experimentar vivencias a partir de elementos epistemológicos para la mejora de la práctica, desde lo más íntimo del ser humano enfermero.
Narrativa de enfermería: símbolos de enfermería en la Universidad Autónoma de Centro América
Authors: Bonilla Ureña Hazel
Published: August 2023

Introducción. Enfermería es una disciplina que ha sufrido cambios a través de la historia, sin embargo, desde la antigüedad su simbología sigue representado la esencia y el ser de la profesión. De los símbolos que aún siguen vigentes, se presentan y conceptualiza la cofia, el uniforme blanco, la capa y la lampara los que más significado tienen. Desarrollo. Son muchas las escuelas de enfermería a lo largo del mundo que realizan diferentes actividades entre ellas, “la imposición de cofias”, “la bendición de los símbolos de enfermería” o “la ceremonia de la luz”, con el fin de acercar a los estudiantes a conocer la base de enfermería y su significado ante la sociedad. Por ejemplo, en la Universidad Autónoma de Centroamérica, UACA, realiza un acto religioso solemne de “imposición de cofias y gabachas” para ratificar la vocación y el compromiso que deben adquirir los estudiantes al iniciar las rotaciones clínicas. La narrativa permite conocer la experiencia vivida en la ceremonia de imposición de cofias y el significado que tiene para los estudiantes, sus familias y para la Universidad. Conclusión. Los símbolos tienen gran impacto en los profesionales de enfermería y en la sociedad, ya que por siglos han estado presentes, y a pesar de que la profesión ha evolucionado, el significado de estos aún se mantiene en la conciencia de las personas. Además, es preciso que los estudiantes de enfermería como futuros profesionales valoren la importancia del uso adecuado y el significado de estos para una buena imagen social de la profesión.
Daily activity of threatened canopy mammals in a private protected natural area of tropical southeastern Mexico
Authors: Pelayo-Martínez Jaime , Ortíz-Lozada Liliana , Sosa Vinicio J. , Mota-Vargas Claudio , Durán-Antonio Jessica
Published: August 2023

Private conservation areas (PCA) are a complementary resource that can be used to favor the conservation of mammals in tropical regions of the world. However, their reduced extent can exert a differential influence on the behavior of the species present, and ultimately affect their coexistence. We investigated the daily activity patterns of canopy mammals during the rainy season of 2016 in a 100 ha PCA in tropical forest. To record activity, 11 camera traps were set up in trees at 15 m above ground level. Sciurus deppei was the only diurnal mammal recorded. Potos flavus was more active around midnight, while Caluromys derbianus and Coendou mexicanus were active before (21:00 to 23:00 h) and after midnight (01:00 to 04:00 h). Tamandua mexicana and Didelphis marsupialis were active throughout the night. The nocturnal mammals showed great overlap in their hours of activity. Overall, there was no difference in activity patterns of canopy mammals in this small PCA compared to those reported in larger protected natural areas. The highest number of records occurred in the tallest trees located in the highest and best-conserved parts of the study area, suggesting the importance of forested PCA to the conservation of canopy mammals.
A new species of the Onthophagus mirabilis species complex (Coleoptera: Scarabaeidae: Scarabaeinae) from the Chimalapas region, Oaxaca, Mexico
Authors: Moctezuma Victor , Halffter Gonzalo , Mora-Aguilar Eder F.
Published: August 2023

Onthophagus zoquecornis, new species of the O. mirabilis species complex is described and illustrated. Keys to separate adult males, and females of the O. mirabilis species complex are updated. An updated distribution map of the O. mirabilis species complex is presented. A brief discussion on species richness of the New World Onthophagus, and distribution and ecology of the new species is provided.
Diversity and distribution of Odonata (Insecta) larvae in a subtropical lagoon with different land uses in Veracruz, Mexico
Authors: Gómez-Anaya José Antonio , Brug-Aguilar Brenda , Vázquez-Hurtado Gabriela , Novelo-Gutiérrez Rodolfo
Published: August 2023

Impacts caused to freshwater reservoirs by human activities have increased in tropical and subtropical regions in the last decades. We studied the effects of land use on the physicochemical properties of water and their effects on larval Odonata diversity in a subtropical lagoon. During 1 year, physicochemical variables were measured, and Odonata larvae were collected in 8 sites (4 in the urbane zone and 4 in the more conserved rural zone) with different land uses that cover the entire periphery of the lagoon. Physicochemically, no clustering of samples from urban and rural zones or by site was observed, rather clustering reflected temporal patterns. A total of 28 species were found and some of them showed a differential distribution between both zones, and between the 8 sites and collectings. The highest diversity was recorded in the rural zone. The site with domestic waste discharges had the lowest diversity and it showed high concentrations of nitrates and ammonium. We conclude that the effect of land use in this lagoon is still incipient on Odonata diversity. The diversion and treatment of urban waters and proper land management are recommended to ensure the maintenance of Odonata diversity.
Adriana Estrada Álvarez, Nicolas Défossé y Diego Zavala Scherer (eds.), Cine político en México (1968-2017)
Authors: Ruiz Ojeda Tania Celina
Published: August 2023

Reseña
Bígamos errantes del gran Michoacán en la segunda mitad del siglo XVIII
Authors: Guevara Sánchez Berenice
Published: August 2023

En la segunda mitad del siglo XVIII, durante la pugna ideológica y política entre la Corona española y la Iglesia novohispana, se desarrollaba, a su vez, una disputa por el control jurisdiccional del delito de dúplice matrimonio en toda la Nueva España, sobre todo a partir de la publicación de la Real Cédula del 10 de agosto de 1788. Este trabajo muestra parte de los avatares que dicha desavenencia supuso para la impartición de justicia del Santo Oficio; asimismo, expone los problemas que comúnmente enfrentó la Inquisición para sentenciar. Se abordan también los castigos aplicados a los casados dos veces, que representaban simbólicamente los preceptos consuetudinarios de la época, los cuales variaban según el género y el origen social del inculpado. Por último, como elemento innovador, se presentan imágenes de los procesados, gracias a la colaboración con el especialista en retrato hablado Agustín Cerezo Leiva, que recreó los rostros de algunos bígamos a partir de los expedientes de la comisaría inquisitorial de Valladolid, perteneciente al obispado de Michoacán.
Escrituras tangibles
Authors: Akhmadeeva Ioulia , Valencia Colín María De los Ángeles
Published: August 2023

"En Escrituras tangibles el soporte de la imagen grabada es tanto el proceso creativo como el contenedor de la memoria misma. Es un acercamiento íntimo a laartista, a partes de su historia, a las historias que se comparten con los otros, ala historia que toma el público e interpreta, transforma, comunica o contiene.Traduciéndose en una de las diversas formas de acercamiento al arte contemporáneo multidisciplinario". (M.H.A. María de los Ángeles Valencia Colín)
Revisitando el debate sobre la cultura del narcisismo: ¿Ocaso del sujeto en el capitalismo tardío?
Authors: Hernández Delgado Rigoberto
Published: August 2023

Este texto se propone recuperar y analizar las tesis y argumentaciones acerca de la llamada “cultura del narcisismo”, contenidas en las propuestas teóricas de numerosos pensadores y pensadoras desde las décadas de los sesenta y setenta del siglo XX y hasta la actualidad. Se pretende encontrar elementos conceptuales transversales, así como discordancias teóricas entre estas propuestas. Para realizar este análisis se parte de la estela teórica heredada por la Teoría Crítica y, en particular, de las tesis de Theodor W. Adorno en relación a la disolución del individuo posliberal y el daño narcisista en el sujeto del capitalismo monopolista del siglo XX. Así como lo hacen el propio Adorno y la mayoría de los autores y autoras que se revisarán, se enfatiza el papel que los conceptos psicoanalíticos juegan en la comprensión de la cultura del narcisismo. Finalmente, se reflexiona acerca la idea, sostenida por varios pensadores contemporáneos, de la desaparición del sujeto por el efecto de los mecanismos masivos de enajenación en las sociedades del capitalismo tardío, y como una consecuencia extrema de la cultura del narcisismo.
La presencia de Pólemos en la voluntad de poder
Authors: Velázquez Sánchez Claudia Marleen
Published: August 2023

El presente artículo se centra en lo que Friedrich Nietzsche entiende por confrontación, momento inherente a la noción de devenir que atraviesa toda su obra. Para adentrarnos en esta problemática, consideramos imprescindible la figura de Heráclito y la relación que guarda con la concepción aquí aludida incluso cuando, en el texto, Nietzsche no menciona al efesio explícitamente. En primer lugar, marcaremos el antecedente fundamental (devenir y lucha de opuestos) desde los comentarios que el de Röcken expone sobre Heráclito en Die Philosophie im tragischen Zeitalter der Griechen (1873). Luego, nos remitimos al concepto de antítesis (Gegensatz) presente en Morgenröthe (1879-1881) y sus diferencias con la contradicción dialéctica. Finalmente, exponemos este mismo concepto, pero desde las secciones de Jenseits von Gut und Böse (1886) que arrojan luz sobre él (antítesis como prejuicio metafísico). Asimismo, indagamos sobre la guerra (Krieg) y su diferencia con lo que en Ecce Homo (1889) se dice sobre la lucha (Ringen), entendiendo esta como una especie de esfuerzo innecesario ante ciertas formas de sobrellevar la vida. A lo largo de todos estos planteamientos introducimos la noción de juego como la manera en que acontecen la antítesis o la confrontación.
Reseña: Marta Lamas, "Dolor y política: Sentir, pensar y hablar desde el feminismo"
Authors: Rodríguez Everaert Ana Sofía
Published: August 2023

Reseña del libro de la autora Marta Lamas, Dolor y política: Sentir, pensar y hablar desde el feminismo.
Del barro: espacio y tradición en la cerámica de Tzintzuntzan
Authors: López Daniela , Silva Cruz Ignacio
Published: August 2023

Reportaje fotográfico. La cerámica es el arte que utiliza uno de los elementos primordiales de la vida de los seres humanos: la tierra. Tocarla cuando está seca, amasarla cuando está húmeda, acariciarla, sentir cómo inunda las manos y, al mismo tiempo, se resbala por entre los dedos es una experiencia que nos acerca a la creación. No en vano las dos tradiciones de las que venimos nos hablan de seres que fueron creados a partir de la arcilla o de la masa de maíz.
“Sólo existe de veras quien dialoga”. Un encuentro con Roberto Fernández Retamar a casi cincuenta años de su “Calibán”
Authors: Rodríguez Martínez María Isabel
Published: August 2023

Esta entrevista se encuentra publicada en la revista Devenires, número 37 (enero - junio 2018), consultable aquí: http://devenires.umich.mx/devenires-37-numero-actual/ . Se verificó un error en el trascurso del proceso editorial. Nos disculpamos con nuestros lectores
Cloud Security and Privacy
Authors: Bhansali Aayushi
Published: August 2023

Abstract: Over the last decade, cloud computing has grown and evolved significantly. It provides cost-effective solutions as well as a wide range of adaptable services. Many businesses are using cloud services. Users mostly use cloud services to save data in a virtual environment. Users have no knowledge of or influence over what happens in the cloud, and nothing in the cloud is visible to them, which raises security and privacy problems. Malicious administrators can mess with the integrity, privacy, virtual machines, and volatile confidentiality of cloud services. Clouds are vulnerable to hacking, and their integrity, availability, and data security are all in jeopardy.
Response to: “Looking back to launch forward: a self-reflexive approach to decolonising science education and communication in Africa”. Decoloniality opens up new epistemic vistas for science communication
Authors: Raman Sujatha
Published: August 2023

Decolonial perspectives open up epistemic and practical insights for science communication. Following critiques of a deficit-model framing of the field, science communication has been redefined as an inclusive cultural space of meaning-making around science. From a decolonial lens, however, a cultural perspective necessitates a fundamental reckoning with the historical and contemporary politics of knowledge claims, including the erasure and devaluation of entire knowledge-systems in the process of Westernization. In recognizing and learning from these histories, science communication can learn from parallel developments within the sciences. It can also learn from contributions made by decolonial scholars to the global challenge of navigating sustainable futures. This piece briefly discusses one such example, drawing from scholarship on the ontological cosmovision of Ubuntu and its relevance to climate change dilemmas today.