bluuebunny/crossref_metadata_2025 huggingface dataset:
Improvement of Omega-3-rich Microalgae Biomass Production to Support Qatar Food Security
Authors: Cherif Maroua , Bounnit Touria , Al JAbri Hareb , Saadaoui Imen
Published: December 2020

Recently, algae have received considerable interest as one of the most promising feedstocks suitable for animal feed production due to their fast growth, less nutrient requirements and their ability to produce primary and secondary metabolites with high-added value. Different strategies were applied to improve both biomass and metabolites productivities aiming to produce highquality biomass with low cost and high nutritional value. Tetraselmis subcoliformis QUCCCM50, a local marine green alga presenting fast growth, high metabolites content and easy to harvest, was selected as a candidate for feed production. Three different stress conditions were applied to enhance its potential to produce high-value products such as Nitrogen or Phosphorus depletion and high salinity of 100ppt. An assessment of the growth properties and biomass productivity was performed during the growth. After 15 days of cultivation using tubular photobioreactors, the biomass was subjected to metabolites characterization and fatty acids methyl ester profiling. Results showed that the three stress conditions present different impacts on biomass productivity and, lipid quantity and quality. Cultivation under 100 ppt led to the highest increase in lipid content. This culture condition led to 25% increase of the omega-3 fatty acids with the appearance of the docosahexaenoic acid (DHA) and a remarkable increase of the alpha-linolenic acid, comparatively to the control. The enrichment of the Tetraselmis subcoliformis’ biomass in terms of omega-3 fatty acids enhance its nutritional value and make it very suitable for animal feed production. The optimized culture conditions obtained from the current study will be applied at large scale to enhance the quality of the biomass towards omega-3 enriched animal feed supplement production, and hence support achieving food security in the State of Qatar.
Catalytic Decomposition of Ethanol over Bimetallic Nico Catalysts for Carbon Nanotube Synthesis
Authors: Kumar Anand , Ashok Anchu
Published: December 2020

In this work we investigate the use of NiCo bimetal/oxide as catalyst for hydrogen production from ethanol, with a focus on the deactivation pattern and the nature of the observed carbon deposition. It is well known that sintering and coke deposition during decomposition reaction significantly reduces the activity of the catalysts at higher temperature, by blocking the active sites of the catalysts. During ethanol decomposition reaction, the cleavage of C-C bond produces adsorbed *CH4 and *CO species that further decompose to form carbonaceous compounds. FTIR in-situ analysis was conducted between 50 to 400°C for all the catalysts to understand the reaction mechanism and product selectivity. Cobalt was found to be selective for aldehyde and acetate, whereas bimetallic Ni-Co was selective for the formation of CO at 400°C along with aldehyde. Complete conversion of ethanol was observed at 350°C and 420°C for NiCo and Cobalt respectively indicating an improvement in the rate of conversion when Ni was added to cobalt. The crystallinity, morphology and particle analysis of the used catalyst after reaction were studied using XRD, SEM and TEM respectively. The XRD shows the complete phase change of porous NiCoO2 to NiCo alloy and SEM indicates the presence of fibrous structure on the surface with 91.7 % of carbon while keeping 1:1 ratio of Ni and Co after the reaction. The detailed analysis of carbon structure using HRTEM-STEM shows the simultaneous growth of carbon nano fibers (CNFs) and multiwalled carbon nanotubes (MWCNTs) that were favored on larger and smaller crystallites respectively. Analysis of carbon formation on individual Co catalyst and bimetallic NiCo catalyst shows a clear difference in the initiation pattern of carbon deposition. Metallic Co nanoparticles were found to be more mobile where Co disperses along the catalysts surface, whereas NiCo nanoparticles were relatively less mobile, and maintained their structure.
Tectonic and Geologic Settings of Halul and Al-Alyia Offshore Islands, Examples of Different Evolution Models, Within the Emergence of the Arabian Gulf Geosyncline: A Review
Authors: Elobaid Elnaiem Ali , Sadooni Fadhil , Al Saad Hamad
Published: December 2020

The Arabian Gulf represents a significant water body and strategic pathway, which has pronounced regional and international benefits. This research investigated the evolution of the Arabian Gulf geosyncline. Furthermore, it explored the formation, geologic and tectonic settings of Halul and Al-Alyia offshore Islands, as examples of two different evolution models, within the emergence framework. The Arabian Gulf geosyncline has been emerged during the Cenozoic Era (Late Miocene-Pliocene Epoch), situated in the northeastern collisional marginal part of the Arabian Plate, as a foredeep geosyncline or basin, squeezed or crammed between the stable Arabian Plate and the mobile Euro-Asian Plate, along the subduction zone, within Zagros Mountain Fold Thrust Belt. Halul Island is situated to the northeast of the Greater Doha City and has great national economic value. It has a unique shape, elongated domal structure, oriented from South-West to North-East. The tectonic setting of Halul Island is classified as salt diapirism. The surface geology of this Island is dominated by carbonate rocks, mainly limestone and dolomitic limestone, and some igneous rock, such as basalt and Tholeiite. Al-Alyia Island is an integral part of the mainland. It is situated within the Greater Doha City's vicinity, in the eastern coastal zone. The Island is oriented from south-east to north-west. It is characterized by a gentle slope and low relief topography. The main rocks forming the island is the limestone and dolomitic limestone of the Simsima /Umm Bab Member of the Upper Dammam Formation of Tertiary age. This fact suggests that the island has a similar geologic setting to the mainland. This study revealed that the Halul Island evolution model is completely different from the evolution model of Al-Alyia Island, as Halul Island is a typical example model of salt dome Island, and remnants of the infracambrian salt basin, while Al-Alyia Island represents a different sedimentation model. This research has been carried out as part of the Environmental Science Center (ESC), Qatar University research agenda.
Food, Energy and Water Management Innovation in Doha: A Design-led Nexus Approach
Authors: Karanisa Theodora , Saadaoui Imen , Hamdi Helmi , Fetais Noora , Sayadi Sami
Published: December 2020

Urban communities are affected by population growth, urbanization and climate change, thus being vulnerable to food, energy and water demand. According to the United Nations, the world’s population is expected to increase by 2 billion people in the next 30 years and 68% of them are projected to live in urban areas by then. At the same time, 1/3 of the food produced in the world for human consumption every year gets lost or wasted and still, 795 million people worldwide are malnourished. A sustainable Food, Energy, Water and Waste Nexus is urgent. The Moveable Nexus Project is aiming to give a solution to the FEW Nexus through urban design methods and agricultural practices by practicing the design method, the evaluation effect and the participation. The design method will be practiced through design charrettes and international workshops and the evaluation will be realized by a Food, Energy & Water consumption environmental footprint calculator. Finally, the participation phase will engage the stakeholders and the community at the Doha Living Lab. The Doha Living Lab will quantify the urban FEWW-fluxes through urban agriculture and will try to achieve sustainability in terms of food production, new crops and new production technology, water management, organic waste management, reuse and recycle. The Living Lab will also assess the needs of the community and the involved stakeholders, by engaging them in every process thus enhancing resilience among people and agri-food systems.
Innovations and Hotel Performance in the Aftermath announcement of Qatar Hosting FIFA 2022 World Cup
Authors: Charfeddine Lanouar , Dawd Issa
Published: December 2020

The innovation-performance relationships continue to raise an ongoing debate in which the existing literature yields no conclusive results mainly in the tourism sector of resource-rich countries. This paper contributes to the literature by proposing a theoretical framework which links four innovations types to five types of performances in the hotel industry. Using a sample of all three, four and five stars hotels in Qatar over six months between 2016 and 2017, the results show the existence of an innovative path beginning from organizational innovation leading to an improvement of the hotels' financial performance. Specifically, the findings suggest that organizational innovation is the stronger driver of service innovation, and market performance is the main driver of financial performance. Accordingly, the results have several recommendations for hotels’ managers and Qatari policymakers for successful innovation implemention. The evidence also provides a better understanding of innovation types that drive hotels’ performance in the developing world, which may differ from the developed countries.
Novel Solar driven Cooling System Integrated with Solar Still System
Authors: Sleiti Ahmad K. , Al-Ammari Wahib A. , Al-Khawaja Mohammed
Published: December 2020

Novel integrated solar cooling and solar distillation system is introduced to meet the high cooling and fresh water demands in hot and arid regions such as Qatar. The system is composed of a solardriven ejector cooling system coupled with a single-slope solar still. The introduced novel system is the first study that integrates two solar systems for cooling and water production with outputs significantly higher than any existing system. The results show that the productivity of the solar still is improved by enhancing the evaporation rate (using heating coil) and by increasing the condensation rate (using cooling coil). Simultaneously, this improved the COP of the ejector system by increasing its entrainment ratio with a slight increase in the required solar collector area. The performance of four different scenarios of integration between the proposed cooling and distillation systems is investigated. The results showed that the productivity of the still is five times higher than that of the conventional solar still. The annual produced water considering the hourly variation of the radiant flux was 5067 kg/year, which is 5.7 times more than the conventional systems. The estimated cost of one-liter distilled water per 1 m2 area of the present solar still is $0.04, which is only 18% of the water cost of other still technologies.
Environmentally-Powered WSN for Urban-Scale Mapping and Assessment of Air Quality in Qatar
Authors: Tariq Hasan , Touati Farid
Published: December 2020

Environmental monitoring has gained significant importance in outdoor air quality measurement and assessment for fundamental survival as well as ambient assisted living. In real-time outdoor urban scale, instantaneous air quality index estimation, the electrochemical sensors warm-up time, cross-sensitivity computation-error, geo-location typography, instantaneous capacity or back up time; and energy efficiency are the six major challenges. These challenges lead to real-time gradient anomalies that effect the accuracy and pro-longed lags in air quality index mapping campaigns for state and environmental/meteorological agencies. In this work, a gradient-aware, multi-variable air quality-sensing node is proposed with event-triggered sensing based on position, gas magnitudes, and cross-sensitivity interpolation. In this approach, temperature, humidity, pressure, geo-position, photovoltaic power, volatile organic compounds, particulate matter (2.5), ozone, Carbon mono-oxide, Nitrogen dioxide, and Sulphur dioxide are the principle variables. Results have shown that the proposed system optimized the real-time air quality monitoring for the chosen geo-spatial cluster (Qatar University).
The Formation of Sulfide Scales on Carbon Steel in Saturated H2S
Authors: Alqahtani Noora , Qi Jiahui , Abdullah Aboubakr M. , Laycock Nicholas J. , Ryan Mary P.
Published: December 2020

There are three contributing elements of corrosion of Carbon Steel in H₂ S environment: the effect of H2S on water chemistry; electrochemical reactions of the bare iron surface (both anodic and cathodic processes); and the formation and growth of corrosion product layers. The electrochemical reaction commonly contains three stages: first, the reactant transported from the solution (bulk) to the metal surface; then the transfer of the charge reaction on the surface, followed by the reaction product transported away from the iron surface to the bulk solution or the formation and development of the corrosion product which then can decrease the corrosion rate. Development of a robust corrosion model to predict the corrosion process in H2S requires a mechanistic understanding of all these elements. An experimental study was carried out to assess the corrosion of C-steel under open-circuit technique conditions and in solutions at several ranges of time and temperatures. The effect of film composition, morphology, structure, thickness, and ion- concentration of corrosion product films formed on pipeline Carbon Steel in an acid sour solution were examined. The electrochemical behavior of the filmed steel was measured, and the film properties assessed using a range of advanced techniques including Scanning Electron Microscopy (SEM), and Raman spectroscopy (RS). The data will be discussed in terms of film formation mechanisms.
Method Validation of Drug Quantification Poster
Authors: Atia Fathy Atia Mohamed , Ahmadi Ahmad Ali , AlSafran Mohammed
Published: December 2020

A lowest detection limit with straight linearity was obtained by developing a method to analyze Phenacetin (Phe) in both aqueous and organic extraction by using Liquid chromatography Triple Quoadrpole mass with electrospray ionization (LCMSMS/ESI). The validation of the developed method was carried out according to ICH Harmonized Tripartite guideline. Validation criteria obtained were; the method detection limit MDL is 0.089 ng/ml, method quantification limit MQL is 0.19 ng/ml while the calibration curve linear from 0.1 to 1000 ng/mL with correlation coefficient R2 is 0.9994, Accuracy and precision up to 97% and the repeatability inter and intraday for six replicates of three concentration with RSD 2.1%. Separation occurred using Nova Pack C18 4 um, 150 x 3.9 mm column, using acetonitrile: 0.1% Formic acid 60:40% (v:v) at flow rate 1ml/min. the detector was triple quad mass spectrometry at multi-reaction mode MRM to detect parent mass 180.1 at frag 97 to transition fragments 110 and 138 at collision voltages 16 and 12 respectively.
Approaches to achieve Sustainable use and Management of Groundwater Resources in Qatar
Authors: Ahmad Ayesha , Alghouti Mohammad
Published: December 2020

This paper reviews the hydro-geochemical characterization of Qatar’s aquifer. In addition, it highlights the opportunities in the current groundwater management practices to achieve a sustainable groundwater use in Qatar such as assessing and monitoring the groundwater quantity and quality. In this review article, the Driver-Pressure-State-Impact-Response framework is used to analyze the water resource system in Qatar; begins by describing the causal chain from driving forces of impacts and finally state the responses. As the main driver is the intensive use of groundwater for agriculture irrigation, this causes high pressure on groundwater abstraction and deteriorate the state of the groundwater environment in term of quantity and quality, which has an impact on the food and water supply demands. Therefore, the final response highlights the need for the enhancing the rainfall infiltration to the aquifers, recharging the groundwater aquifers using treated sewage effluent or desalinated water development of groundwater treatment techniques, the use of efficient water irrigation practices, the reuse of treated wastewater for irrigation and the development of certain water-use tariff structures and awareness campaigns for farmers.
Development of Sustainable Eco-friendly Geopolymer Composites for Construction Applications
Authors: Rabie Mohamed , Irshidat Mohammad , Al-Nuaimi Nasser
Published: December 2020

Geopolymerization is a process where silica and alumina rich source materials turns into excellent binding materials by the aid of alkali solutions. Materials such as fly ash are by-products in energy power plants. Fly ash is classified based on its constituent materials. Fly ash class F mainly consists of alumina and silica. Compressive strength of class F fly ash geopolymer mortar is influenced by many factors such as the molarity of sodium hydroxide solution, fluid to binder ratio, Na2SiO3/NaOH ratio, curing duration and curing temperatures. The present study investigates the effect of these factors on the compressive strength of geopolymer mortar. For each combination, three cubes with dimensions of 50 x 50 x 50 mm were casted. After heat curing in the laboratory oven, the samples were tested on a universal testing machine for the compressive strength. The results showed very high early compressive strength of 63.9 MPa for samples cured at 80 °C and for a duration of 24 hr.
Antigenica and Genetic Characterization of Identified Rotavirus Strains in Qatar in Response to Rotarix Vaccine Usage
Authors: Mathew Shilu M. , Ibrahim Malak , Al Thani Asmaa , Al Ansari Khalid , Zaraket Hassan , Yassine Hadi M.
Published: December 2020

To identify genetic and antigenic variation in RV in response to vaccine usage. Methods: A total of 231 RV-positive fecal samples were collected from children suffering from AGE during three-year study period between June 2016 and June 2019. The age of the subjects ranged between 2 months and 14 years (median of 16 months). RV genotyping and neutralizing regions, which include both VP4 (Ptype) and VP7 (G type), were amplified and sequenced. We characterized amino acid sequence variability and predicted antigenicity compared to the Rotarix vaccine strain. Phylogenetic analyses were performed using MEGA7.0. Fisher’s exact test was used to run the statistical analysis for the clinical and demographical characteristics of circulating strains. Results: RV infection was most common in children between 3-36 months of age. Among the RV-positive cases, 135 (59.3%) had been vaccinated using either of the RV vaccines available. The number of children vaccinated with one and two-dose was 53 (39.2%) and 82 (60.8%), respectively. The percentage reduction of disease in a vaccinated group of pediatrics compared to an unvaccinated group of pediatrics was 25%. Of these, 108 (78.2%) experienced diarrhea for less than three days, and only eight (6.7%) had diarrhea for more than five days. All vaccinated children showed mild to moderate dehydration except for ten children who were then treated with intravenous fluids. G3 strains were the most strains detected (40%) followed by G2 (17.7%), G4 (16.8%), G9 (15%), G1 (9%), and G8 (0.9%). The dominant RV strains during the study period were G3P [8] (30.8%), G2P [8] (12.3%), G4P [8] (11.7%) and G1P[8] (10.4%). Comparisons of the amino acid residues defining the VP7 and VP4 antigenic domains revealed several mismatches between G1P [8] strains and the G1 and P [8] strains contained in the currently licensed rotavirus vaccines Rotarix. Eighty percent (n=8) of the G1 genotype specimens harbored three amino acid substitutions (N94S, S123N, and M217T) in 7‐ 1a and 7‐ 2b antigenic sites in comparison to the Rotarix vaccine. The P [8] strains with G4 and G9 counterparts showed the highest degree of variation among all specimens with known G genotype. These viruses had 15 and 13 substitutions in their VP4 antigenic epitopes when compared with the P [8] component of the Rotarix vaccines. Conclusion: This study suggests genetic variability in G1 genotype specimens to escape the vaccine-derived immune response. It also identified the wide diversity of circulating RV genotypes in Qatar.
ATTITUDE OF PLUS TWO STUDENTS TOWARDS PUBLIC EXAMINATION IN RELATION TO PARENTAL PRESSURE
Authors: Chrysolyte S. Vinolin , Dharma Raja B. William
Published: December 2020

This study examines the attitude of plus two students towards public examination and its relationship with parental pressure. The sample of the study comprised of 386 plus two students from Tirunelveli district. The authors employed survey method for collecting the data and they were analysed using descriptive and inferential statistical techniques. It was found that there is a significant relation between the attitude of students towards +2 public examination and parental pressure.
GOOD GOVERNANCE: A KEY TO ENHANCE AGRICULTURAL GROWTH IN INDIA
Authors: Patel Amrit
Published: December 2020

For India agricultural growth rate of minimum 4 percent per annum is a must to ensure livelihood of 48.9 percent population engaged in agriculture, food and nutritional security of country’s rising population and last but not the least to alleviate rural poverty. Since country’s Independence in 1947 and from the first five year plan to twelfth five year plan, the Government has initiated policy and formulated innumerable programs to accelerate the agricultural growth rate. However, not only the share of agriculture in India’s GDP progressively declined from 23.4% in the 9th five year plan[1997-02] to 17.60% in 2014-15 but also the agricultural growth rate during 2014-15 is abysmally the lowest at 0.2 percent as against country’s 7.3 percent economic growth rate. Food output in 2014-15 is estimated to be 251.12 million tons [MT] significantly less than 257.13 MT and 265.14 MT in 2012-13 and 2013-14 respectively. This, therefore, points to the focused need for good governance in agriculture right from the concern and commitment of policy-makers through transparent and farmer-friendly administration and implementation of agricultural development programs to the accountability to the farmers to achieve the targeted growth rate and development of agriculture. It is in this context, this development perspective article highlights critical components of good governance in agriculture.
MINIMIZING ADVERSE IMPACT OF DROUGHT: ROLE OF GOVERNMENT AND FINANCIAL INSTITUTIONS
Authors: Patel Amrit
Published: December 2020

For India, droughts and floods in one or the other parts of the country are regular features every year. History records 24 major drought years during 121 years from 1891 to 2012 that include 15 droughts since country’s independence. The year 2015-16 [July-June] was predicted to be a drought year since the India Meteorological Department had projected 88% of normal monsoon rainfall. This is expected to produce 253.16 million tons of food output much less than 265.04 million tons in 2013-14.According to the latest press reports in April-May 2016 already quarter of the country, 313 districts, 1,58,205 villages and 4,44,281 dwellings in 12 States have been hit hard drying up traditional source of drinking water too as on end-April 2016.Coping with drought requires meticulous planning to conserve rainwater and economize on its use. Water-guzzling crops like sugarcane, paddy and even hybrid cotton need to be discouraged in water-stressed area. Around 15.38% of 650 billion cubic meters [BCM] water available for irrigation is used by sugarcane (the crop uses water from reservoirs as well as groundwater), which is planted on no more than 2.5% of India’s farmland. Sugarcane uses a disproportionate amount of water. This paper focuses the need to make the role of the Government and rural financial institutions effective to minimize impact of drought and suggests the strategic action plan to harness the available irrigation potential including recycling the use of wastewater and improving water use efficiency through micro-irrigations schemes with the support of institutional credit.
INFORMATION SEEKING BEHAVIOR AND ITS PRACTICAL UTILITY
Authors: Bharadwaj Versha , Khan Javed
Published: December 2020

Information behaviour is also the term of art used in library and information science to refer to a sub-discipline that engages in a wide range of types of research conducted in order to understand the human relationship to information. Information seeking behavior refers to those activities a person engages in when identifying his or her own need for information, searching for such information in any way and using or transferring of information. 

The term information seeking often serves as an umbrella overarching a set of related concepts and issues. In the library world, discussions of database construction and management, community information needs, reference services, and many other topics resonate with the term.
Advisory Review: The Reincarnation of the Notwithstanding Clause
Authors: Albert Richard
Published: December 2020

The notwithstanding clause is the cornerstone of our Canadian constitutional architecture. It has a high ambition to reconcile constitutionalism with democracy. But the notwithstanding clause finds itself conceptually situated between illegitimacy and desuetude in a constitutional purgatory. This is not a promising portrait. Nonetheless, it is a blessing in disguise. The tragic failure of the notwithstanding clause is a fortuitous opportunity to create a new process that will allow us to achieve its objectives while also remaining loyal to the intentions of its creators. This new process - which the author calls advisory review - is a new form of judicial review that is uniquely Canadian, born of Canadian roots, and consistent with Canadian constitutional traditions.
Liability of Reporting Issuers, Directors, Management and Reserves Engineers for Reserves Report Errors
Authors: Droppo Dallas L. , Wagner Britta
Published: December 2020

Who is liable for errors In oil and gas reserves reports and to whom? In the wake of newly adopted reserves reporting requirements, the question of liability deserves critical examination. What are the responsibilities imposed by the new reserves reporting instrument called National Instrument 51-101? What is the potential scope of liability faced by reporting issuers, their directors and senior management and the independent reserves evaluators and auditors who are appointed to evaluate reserves data? How do reserves reporting requirements fit into the statutory framework for public disclosure generally? What strategies can be adopted to limit liability and will they be effective? These and other questions are examined in this article.
Laboratory Tests in Assessing the Risk of Heterotopic Ossification
Authors:   Ilizarov National Medical Research Center for Traumatology and Orthopedics, Kurgan, Russian Federation, Stogov M. V. , Soldatov Y. P. ,   Ilizarov National Medical Research Center for Traumatology and Orthopedics, Kurgan, Russian Federation, Chibirov G. M. ,   Ilizarov National Medical Research Center for Traumatology and Orthopedics, Kurgan, Russian Federation, Kireeva E. A. ,   Ilizarov National Medical Research Center for Traumatology and Orthopedics, Kurgan, Russian Federation
Published: December 2020

Heterotopic ossification (HO) is a common complication after injuries and orthopedic interventions. The aim of the study is to assess the feasibility of using laboratory tests to predict and determine the degree of risk of developing heterotopic ossification in patients after surgical treatment of bone fractures. Materials and methods. The results of surgical treatment of the effects of a humeral fracture in 25 patients were analyzed. In retrospect, all patients were divided into two groups: the main group included patients (n=9), who after surgery of the elbow fractures developed complications in the form of HO elbow para-articular tissues. The control group (n=16) consisted of patients who in the year after elbow fractures surgery developed no complications in the form of HO. Blood tests were performed in all patients prior to treatment, 7 days after surgery and at discharge from the hospital. The two groups of comparison (main and control) were comparable in age, time elapsed from the injury, the type of surgery performed, and length of hospital stay. Results. As a result of the study three potential predictors of HO were distinguished by laboratory tests in patients of the main group at the time of discharge: 1) high values of lactate (cut point with 100% sensitivity of the test – 2.32 mmol/l); 2) high values of hemoglobin (cut point with 100% sensitivity of the test – 130 g/l); 3) decreased activity of bone isoenzyme of acid phosphatase (cut point with 100% sensitivity of the test – 4.4 U/l). The odds ratio for a positive result of all three tests for predicting heterotopic ossification is 15.0. Conclusion. The identified laboratory tests allow to predict and determine the degree of risk of heterotopic ossification in patients after treatment of the effects of bone fractures.
A Rare Combination of a Complex Nevus with Basal Cell Carcinoma of Piloid Differentiation in a Patient with Hyper-Extensible Eyelid Syndrome. Clinical and Morphological Case
Authors:   I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation, Krinitsyna E. A. , Fedorov A. A. ,   Research Institute of Eye Diseases, Moscow, Russian Federation
Published: December 2020

A clinical case of a patient with floppy eyelid syndrome who underwent a resection of the lower eyelid for a neoplasm is presented. Despite of the large volume of tissue removed and given his current state, it was possible to close the defect by direct tissue matching. Thus, patients with floppy eyelid syndrome have an advantage in case of removal of large volume neoplasms, which in the future do not require the use of complex plastics.
ANALISIS KELAYAKAN FINANSIAL PENGEMBANGAN USAHATANI LABU MADU DI KABUPATEN PANDEGLANG PROVINSI BANTEN
Authors: Saleh Khaerul
Published: December 2020

Besides having a high economic value, Pumpkin honey also has good nutritional content, technically honey pumpkin cultivation is no different from other plants, but in pumpkin, honey cultivation requires a higher investment, especially at variable costs, this study was conducted in Pandeglang district, in general, it is suitable for pumpkin honey cultivation. The objectives of this study include to: (1) Financial feasibility of pumpkin honey farming. (2) The rate of sensitivity (sensitivity) to the decline in selling prices, increase in production costs and decrease in the amount of production (3) The feasibility of the aspects of cultivation, social environment, economics and marketing of Pumpkin Honey. tabulation and computational methods to facilitate analysis. Data analysis uses quantitative analysis and qualitative descriptive analysis. Quantitative analysis analyzes financial feasibility (B/C Ratio, NPV, IRR and PBP) and sensitivity analysis using applicable interest rates, qualitative descriptive analysis is used to determine the feasibility of cultivation, social environmental, economic and marketing aspects. The results showed that (1) Honey Pumpkin Cultivation in Cipeucang and Cimanuk Subdistricts of Pandeglang Regency was feasible to be cultivated with Gross B/C Ratio, Net B/C Ratio, NPV.IRR and Payback Period (PBP) feasible. (2) The possibility of a decrease in production, a decrease in output prices, and an increase in production costs, according to investment criteria and in a proper condition, and have a good level of sensitivity. (3) The technical aspects of cultivation from climate and rainfall following the Pumpkin Honey plant, the social and environmental aspects are feasible, the marketing aspects are feasible and very promising.
EFISIENSI TEKNIS USAHATANI PADI SAWAH ORGANIK DI KABUPATEN BANYUMAS
Authors: Sularso Kusmantoro Edy , Sutanto Agus
Published: December 2020

The research objectives are to 1) determine the role of organic fertilizers, vegetable pesticides, seeds and labour on the productivity of organic rice farming; 2) factors that cause inefficiencies in the use of production inputs in organic rice farming in Banyumas Regency. The research method used was survey method, the method of determining respondents in a purposive manner (38 farmers). The analytical method uses the stochastic frontier production function analysis method. The results showed that technically the increased use of seeds, manure, liquid organic fertilizer (POC), liquid organic KCl fertilizer and nutrition could increase the productivity of organic lowland rice in Banyumas Regency. Labor has a significant and negative effect on the productivity of organic rice farming. While pesticides have no significant effect on increasing the productivity of organic lowland rice. Management factors that influence the technical inefficiency of organic rice farming according to the signs of hope are formal education and dummy membership in farmer groups. While age and experience did not significantly affect technical inefficiency. The coefficient value of the educational variable is -0,3329 and has a significant effect on the technical inefficiency of organic rice farming. The negative sign of the formal education variable indicates that the higher the farmer's formal education level, the lower the technical inefficiency or the higher the farm's technical efficiency.
Factors influencing the utilisation of facility-based delivery in Nigeria: a qualitative evidence synthesis
Authors: Mshelia Suleiman E , Analo Chukwudi V , Booth Andrew
Published: December 2020

Introduction

High-quality facility-based birth reduces maternal and perinatal morbidity and mortality. Previous multi-country systematic reviews have analysed qualitative research studies to understand the barriers and facilitators of delivery in a health facility. However, questions remain as to the extent to which generic multi-context reviews capture nuanced insights from a specific country context. Nigeria contributes significantly to the global burden of maternal mortality and hence the need to explore the country’s contextual factors affecting maternal mortality viz-a-viz a previous international review.

Methods

To synthesise published and unpublished qualitative research on factors that influence decision-making and use of facility-based delivery services in Nigeria using a qualitative evidence synthesis methodology. Multiple electronic databases, citation chaining and checking of reference lists were searched. Studies were screened by title, abstract and full text. The quality of the included studies was evaluated using the Critical Appraisal Skills Programme (CASP) checklist for appraising a qualitative study. Synthesis of extracted data followed the ‘best-fit’ framework method which combines deductive and then inductive approaches to analysis.

Results

27 eligible studies were identified. Data were organised around four principal themes, further divided into subthemes: perceptions of pregnancy and childbirth, the influence of the sociocultural context and care experiences; resource availability and access and perceptions of quality of care.

Conclusions

Beyond the structural gaps that exist which affect quality care provided at health facilities, wider social determinants like sociocultural beliefs, care experience and resource availability impact upon the utilisation of facility-based delivery services. Future research should prioritise interventions and programmes to address prevalent gaps involving distance and access. In this way, progress can be made against longstanding deficits in the quality of maternal and infant care.
Peningkatan Hasil Belajar Fisika Dengan Metode Pembelajaran Brainstorming
Authors: Aristawati Ika Vidiasari
Published: December 2020

Penelitian Tindakan Kelas ini dilatar belakangi kurangnya keaktifan siswa terutama kelas X TKRO 01 SMK Negeri 1 Trenggalek tahun pelajaran 2018/2019 dalam bersikap ilmiah dan ketuntasan belajar klasikal yang rendah. Berdasarkan perolehan data prosentase keaktifan siswa sebesar 42,86 %. Karena hal tersebut maka mempengaruhi hasil belajar siswa yang cenderung rendah sekitar  54,29 % dari hasil yang diharapkan atau batas standar minimum ketuntasan. Hal tersebut didasarkan dari perolehan hasil belajar pada materi sebelumnya. Penelitian ini menggunakan metode penelitian tindakan kelas menggunakan model penelitian adaptasi dari gabungan Sanford dan Kemmis. Penelitian dilakukan dalam dua siklus, satu siklus dilaksanakan sebanyak dua kali tindakan penelitian. Subjek penelitian adalah kelas X TKRO 01 sebanyak 35 siswa.Teknik pengumpulan data pada penelitian ini menggunakan hasil observasi dan tes tulis. Data berupa hasil belajar dalam bentuk penilaian ketiga aspek antara lain sikap, keterampilan dan pengetahuan dengan menggunakan instrumen tes dan rubrik pengamatan. Hasil tes pada siklus I berdasarkan data perolehan prosentase ketuntasan belajar secara klasikal mencapai 74,29 % dengan rata-rata hasil perolehan nilai 71,81. Prosentase ketuntasan tersebut masih di bawah standar ketuntasan minimun secara klasikal. Sedangkan untuk penilaian keaktifan, prosentase keaktifan siswa dalam bersikap ilmiah mencapai 71,43 %  dengan jumlah siswa aktif 25 dari 35 siswa. Penilaian keterampilan mencapai prosentase 71,43 % dengan nilai rata-rata keterampilan sebesar 63,81. Hasil tes pada siklus II berdasarkan data perolehan prosentase ketuntasan belajar secara klasikal mencapai 85,71  % dengan rata-rata hasil perolehan nilai 76,00. Sedangkan untuk penilaian keaktifan, prosentase keaktifan siswa dalam bersikap ilmiah mencapai 85,71 % dengan jumlah siswa aktif 30 dari 35 siswa dan penilaian keterampilan mencapai prosentase  82,86 % dengan nilai rata-rata keterampilan sebesar 77,14. Berdasarkan perolehan prosentase nilai hasil belajar dari siklus I dan siklus II mengalami peningkatan sebesar 11,42 % untuk nilai pengetahuan, sedangkan keaktifan siswa dalam bersikap ilmiah meningkat sebesar 11,43 %, sedangkan keterampilan siswa meningkat sebesar 14,28 % sehingga pembelajaran dengan metode brainstroming dapat meningkatkan hasil belajar siswa.
Penyusunan Bahan Ajar Pengembangan Kognitif Melalui Pendekatan Iceberg Pada Anak Kelompok TK B
Authors: Handayani Aprilia Dwi , Yulianto Dema , Samijo Samijo , Devita Yohanie Dian , Darsono Darsono
Published: December 2020

Perkembangan kognitif yang harus diperhatikan pada anak usia TK diantaranya adalah kemampuan berhitung yang mencakup konsep penjumlahan dan pengurangan. Akan tetapi, dalam prakteknya, konsep matematika yang abstrak tidak selalu dapat diterima dengan baik oleh siswa usia TK. Sebagian siswa TK masih mengalami kesulitan dalam menjumlahkan angka-angka secara abstrak. ada pula siswa yang kurang mampu menuliskan banyaknya jumlah benda ke dalam simbol angka. Oleh karena itu, untuk  mendukung perkembangan anak secara optimal diperlukan stimulan yang tepat.  Penelitian ini bertujuan untuk mengembangkan bahan ajar untuk memperkenalkan konsep penjumlahan dan pengurangan bagi TK kelompok B dengan menggunakan pendekatan Iceberg. Hasil dari penelitian ini menunjukkan bahan ajar yang disusun termasuk dalam kategori layak dan dapat digunakan untuk menjadi bahan ajar penunjang pembelajaran berhitung pada anak usia TK
Penerapan model pembelajaran window shopping materi vektor untuk meningkatkan hasil dan minat belajar matematika
Authors: Mumpuni Panca Wahyu , Inganah Siti , Sugiarti Wiwik
Published: December 2020

Penelitian tindakan kelas ini dilatarbelakangi oleh prosentase ketuntasan klasikal kelas yang minim, sehingga kesulitan dalam memahami materi vektor atau minat belajar matematika masih rendah.  Upaya mengatasi masalah tersebut melalui inovasi baru dalam mengelolah kelas untuk meningkatkan minat belajar, sehingga diharapkan mempengaruhi hasil belajar yang lebih baik. Pengelolahan kelas tidak lepas dari model pembelajaran yang diterapkan. Model pembelajaran window shopping salah satu faktor meningkatnya daya minat belajar. Penelitian ini terdiri dari dua siklus dengan tahapan yang sama yakni perencanaan, pelaksanaan, pengamatan, dan refleksi. Penelitian ini menunjukkan peningkatan minat belajar kategori tinggi dengan rincian Siklus I sebesar 77% dan Siklus 81%. Peningkatan berlaku pada hasil belajar peserta didik dengan kriteria keberhasilan lebih dari 75%. Hasil belajar dari hasil analaisi data diperoleh 66% Siklus I dan 77% Siklus II. Hasil penelitian menunjukkan model pembelajaran window shopping dapat meningkatkan minat dan hasil belajar peserta didik SMA Negeri 2 Batu, khusunya pada materi vektor.
Algebraic thinking profile of prospective mathematics teacher students with medium mathematics ability according to solo taxonomy
Authors: Rochana Siti , Wahyuniar Lilia Sinta , Shofia Niska , Mahdiyah Umi
Published: December 2020

This study aims to describe the algebraic thinking profile of prospective mathematics teacher students according to the SOLO taxonomy. The research was conducted at the Nusantara University PGRI Kediri. The research subjects were students who are prospective mathematics teachers with moderate or average abilities. Subjects are selected based on course scores and information from several lecturers who are teaching the subject. Besides that, the willingness and openness of the subject is also a consideration for choosing this subject. The instrument used in this study was a matter of algebraic problems. The method used is a qualitative method which refers to the written test and interview. The questions that are done consist of tests of algebra problems for pattern components and algebra problem tests for variable components. The results showed that students of prospective mathematics teachers with moderate mathematical abilities met the indicators of algebraic thinking, namely being able to find certain terms in a given pattern but were unable to generalize the given pattern and could not understand variables as general form numbers in algebraic form.
Profil komunikasi matematis siswa SMP pada materi relasi dan fungsi ditinjau dari gaya belajar
Authors: Rosita Martina , Shodiqin Ali , Prasetyowati Dina
Published: December 2020

Penelitian ini bertujuan untuk mengetahui profil komunikasi matematis siswa SMP ditinjau dari gaya belajar pada materi relasi dan fungsi. Penelitian ini merupakan penelitian kualitatif deskriptif. Subjek penelitian yaitu 6 siswa MTs. Muhammadiyah Kajen kelas VIII dengan gaya belajar visual,gaya belajar auditorial dan gaya belajar kinestetik. Teknik pengumpulan data berupa tes tertulis dan wawancara. Keabsahan data menggunakan triangulasi teknik yaitu dengan membandingkan hasil tes dan wawancara. Dari penelitian diperoleh siswa dengan gaya belajar visual dapat memenuhi semua indikator komunikasi matematis yaitu menyatakan peristiwa sehari-hari kedalam bahasa atau simbol matematika, menjelaskan ide,situasi dan relasi matematik dengan benda nyata,gambar,grafik dan aljabar, menyatakan situasi ke dalam bentuk gambar,dan menyusun model matematika serta menyelesaikannya, menyatakan gambar ke dalam bentuk bahasa biasa (menyusun soal cerita) dan menyatakan argumen serta membaca dengan pemahaman suatu presentasi matematika tertulis dan menarik kesimpulan. Siswa gaya belajar auditorial memenuhi indikator menyatakan peristiwa sehari-hari kedalam bahasa atau simbol matematika, menjelaskan ide,situasi dan relasi matematik dengan benda nyata,gambar,grafik dan aljabar,menyatakan situasi ke dalam bentuk gambar,dan menyusun model matematika serta menyelesaikannya, serta membaca dengan pemahaman suatu presentasi matematika tertulis dan menarik kesimpulan.Siswa gaya belajar kinestetik memenuhi indikator menyatakan peristiwa sehari-hari kedalam bahasa atau simbol matematika,membaca dengan pemahaman suatu presentasi matematika tertulis dan menarik kesimpulan.
CONCEPTUAL BASES OF IMPROVEMENT OF THE ORGANIZATIONAL AND ECONOMIC MECHANISM OF INCREASE OF INVESTMENT ATTRACTIVENESS OF THE SPHERE OF CULTURE
Authors: Kopyl Olena
Published: December 2020

The purpose of this article is to develop the main elements of the organizational and economic mechanism of increasing the investment attractiveness of the sphere of culture. Method. The research is based on the use of a systemic approach to assessing the current state of functioning of the cultural sphere and improving the organizational and economic mechanism for increasing the investment attractiveness of the sphere. This research also uses a modeling method, in particular, to develop a concept of models of cultural services that can be provided by cultural institutions: free services, services on a co-payment basis and full payment by the consumer of cultural services. Results. The research identified the main problems of attracting investment in the sphere of culture and main components of the sphere of culture that need improvement. It is proved that the full functioning of the sphere of culture is possible only with the provision of quality services that can meet consumer demand. Also the place where the service is provided (infrastructure) and the staff who provide this service are very important. Therefore, to attract capital investment in the sphere of culture, it was proposed to use the tool of public-private partnership. To improve the quality of work of employees, it was proposed to introduce a system of key performance indicators for employees. In the course of scientific research, the main element of the organizational and economic mechanism of increasing the investment attractiveness of the cultural sphere in Ukraine was determined by the need to use a project approach to the formation of competitive markets for cultural services. It was determined that the solution of problems in the sphere of culture can be done only if the creation of legal and organizational conditions for financing the sphere of culture, results-oriented, diversification of funding sources, the formation of competitive markets for cultural services. Value/originality. According to the results of the research, an organizational and economic mechanism for increasing the investment attractiveness of the cultural sphere was proposed, the main elements of which were updated models of financing cultural services, new approaches to the remuneration system, use of public-private partnership, project approach.
Addendum to the Bird Song Key to the Birds of Pipeline Road Area, Soberanía National Park, Panama: Two Additional Wrens
Authors: Livezey Kent
Published: December 2020

Identifying species of birds by their songs is an important part of censusing, watching, and enjoying birds. However, differentiating among scores or hundreds of bird songs in an area can be difficult. Placing songs into a descriptive key can help in this endeavor by requiring the user to analyze each song and to identify similarities and differences among songs. In 2016, I published a bird song key to the Pipeline Road area in and adjacent to Soberanía National Park, Panama, which included 321 songs of 216 species. This key is, to my knowledge, the largest bird song key in the world. Since the key was published, two species—Rufous-breasted Wren (Pheugopedius rutilus) and Rufous-and-white Wren (Thryophilus rufalbus)—have moved into the area. This addendum adds three songs of Rufous-breasted Wren and three songs Rufous-and-white Wren to the key, thereby increasing the key’s song total to 327 and its species total to 218.