bluuebunny/crossref_metadata_2025_split huggingface dataset:
Sustainable Management of Wetlands: A case study of the Songor Ramsar and UNESCO Man and Biosphere Reserve in Ghana
Authors: Fianko Joseph Richmond , Dodd Helina S 
Published: February 2018

This study on the Songor Ramsar and UNESCO Man and Biosphere Reserve in Ghana seeks to ascertain management method to promote sustainable management of wetlands. The findings clearly indicated that good management practices are employed in the management of the Songor Ramsar Site. The current approaches to management have focused on the harmonious fusion of modern scientific strategies and cultural and traditional methods. In the Songor Ramsar and UNESCO Man and Biosphere Reserve, traditional authorities have enacted traditional rites such as sacred groves and totems in the Ada East District which are strictly enforced to provide traditional regulatory support for their protection while modern conservation approaches in the Songor Wetland management utilizes all the laws in legal protected areas in Ghana. Management also embark on training programmes for users of the wetland resources in sustainable resource utilization to improve economic livelihood. Increased public education and sensitization on the economic importance of the Ramsar Site and the negative impact of environmental degradation has been part of the management strategies. The Public education is on environmentally sound management of waste within the Ramsar Site since the underlying causes of environmental degradation in the Songor Ramsar Site are mainly improper waste disposal, poor attitude of residents toward environmental conservation, wildfires and shoreline recession, inadequate public education on the impact of environmental degradation, fishing, and farming activities. The other factors identified include overgrazing, over exploitation of mangroves, predation, poaching and over fishing, and uncontrolled sand and salt winning
Use of Interactive Media In Biochemical Material
Authors: Kurniawati Puji , Istiningrum Reni Banowati 
Published: February 2018

ABSTRACT: A study of the use of interactive media in Biochemistry materials at Chemical Analysis Department, Islamic University of Indonesia has been done. Interactive media used in this research is animation media based on molymod and Flash. Molymod is used in lecturing activities to explain the macromolecular bonds and structures that are the focus of the Biochemistry course while the Flash-based animation is expected to improve students' understanding of biochemical metabolism processes in the body. The purpose of this study is to increase students' interest in biochemical learning which is known to be difficult and unattractive.Stages of this research there are 6, namely the initial stage, pre-design, design, model evaluation, field application and evaluation of results. The initial stage is done by improving the Course Outline (CO) and Teaching Unit Course (SAP) as well as the creation of lecture modules. Contents, materials and display modules have been reviewed by incorporating elements of analysis of biochemical examples that are often performed in the industrial world. Molymods of small capacity per set can only make two interconnected monomers. Flash-based animation media can be used during college or can be opened by students independently. The use of interactive media can stimulate students' high interest and understanding, ie 74.38% and 72.88% respectively. The correlation relationship between understanding and interest is also high which is marked with correlation coefficient value 0.806. The achievement of value ≥ B / C obtained with interactive media equal to 76,57% and Lecturer Performance Value (NKD) equal to 3,56.Keywords: interactive media, molymod, biochemistryReceived: 22 June 2017, Revised: 13 August 2017, 1 September 2017
Alternative of Visual Based Learning (VBL) Method Based on Short Duration Video for The Instrumental Chemistry Subject in Chemistry Department
Authors: Riyanto Riyanto , Febriana Beta Wulan 
Published: February 2018

ABSTRACT:There had been done a study of Visual Based Learning (VBL) method based on Short Duration Video for Instrumental Chemicals Subject in Chemistry Study Program of Mathematics and Natural Sciences Faculty (MNSF), Islamic University of Indonesia (Universitas Islam Indonesia—UII). VBL method is carried out by creating a short duration video about an instrument according to the syllabus of instrument 1 subject such as AAS, UV-Vis Spectrophotometer, FTIR, GC-MS, and CV. In order to determine the effect of VBL method using, an analysis of scores obtained between the experimental class and the control class is used. To determine the effect of VBL on psychomotor ability is done by observing directly when students do an experiment or practicum. The influence of VBL method application on student motivation was studied by using questionnaire. The results pointed out that the data of both samples (both classes) is homogeneous. T-test results: Two-Sample Assuming Equal Variances showed that there is a significant difference in the final scores mean between the experimental class and the control class. Based on the mean score it indicates that the VBL method is better while compared to the learning method without VBL. VBL method has a significant effect on students motivation andpsychomotor ability when it is viewed from observation of practicum and the score of practicum. The conclusion is that the VBL method is able to increase students' motivation and psychomotor ability in the Instrumental Chemistry subject.Keywords: Learning, video, chemistry, instrumentalReceived: 20 June 2017, Revised: 13 August 2017, Accepted: 1 September 2017
Science Technology Engineering and Mathematics (STEM) Education Approach against a Microscopic Representation Skill in Atom and Molecule Concept
Authors: Wisudawati Asih Widi 
Published: February 2018

ABSTRACT: The aim of this research in to know microscopic representation change in atom and molecule concept which is influenced by STEM Education. This research is one of the sequences in Research and Development of test instrument by chemistry software. The kind of this research is fieldwork research with one group pre-test and post-test design. Subjects in this research are the twenty-seven students in MBS Senior High School grade 11 th in Yogyakarta region. STEM Education can improve student microscopic representation skill from 30.18 to 54.62 in average score and based on student result in painting molecule with ChemDraw and Avogadro's application, there are a lot of improvement in understanding concept.Keywords: STEM education, microscopics representations, atom and moleculeReceived: 11 January 2018, Revised: 21 January 2018, Accepted: 24 February 2018
The Inquiry Learning Model Uses Small Steps Technique Google Drive on Chemistry Learning Student Class X TAV at SMK PIRI 1 Yogyakarta
Authors: Sahputra Hadiyanto 
Published: February 2018

ABSTRACT: The aim of this study is to know the learning method of Inquiry Learning Small Steps in the chemistry subject through online learning with Google drive media. This study includes an assessment of learning activities and student achievement in chemistry lesson. Object of this study were students of X Class of Technical Audi-Video program (X TAV) in the academic year 2016/2017 of SMK PIRI 1 Yogyakarta. The number of objects examined were 15 students consisting of 15 male and 1 female students. Stages of inquiry learning is providing problems, formulating problems, making hypotheses, collecting data, examining hypotheses and making conclusions. Data collection using observation sheets, tests and questionnaires. The data obtained were analyzed descriptively. Based on the research results obtained that: (1) The use of google media drive can increase student learning activity in the material of atom structure in chemistry lesson. This can be seen from the value of student activity with score 4 (good), student's response value is 85% (Very Positive) and the value of student learning result Pre cycle is 41%, Cycle 1: 54% and Cycle 2: 85%Keywords: Learning inquiry, google drive media, media learnerReceived: 16 January 2018, Revised: 22 January 2018, Accepted: 24 February 2018
Implementation of Active Learning Method in Unit Operations II Subject
Authors: Ma'mun Sholeh 
Published: February 2018

ABSTRACT: Active Learning Method which requires students to take an active role in the process of learning in the classroom has been applied in Department of Chemical Engineering, Faculty of Industrial Technology, Islamic University of Indonesia for Unit Operations II subject in the Even Semester of Academic Year 2015/2016. The purpose of implementation of the learning method is to assist students in achieving competencies associated with the Unit Operations II subject and to help in creating a conducive academic atmosphere so as to contribute to improving the quality of teaching and learning in the study environment. The implementation of this learning method synergized with the face-to-face method is quite successful. This is indicated by an increase in the students' final score ofB from the baseline by 44% to 80%. This achievement exceeds the targeted percentage of 60%.Keywords: active learning method, face to face method, process of learning, conducive academic atmosphere, unit operations IIReceived: 6 February 2018, Revised: 15 February 2018, Accepted: 25 February 2018
The Cost of Joint Replacement
Authors: Palsis John A. , Brehmer Thomas S. , Pellegrini Vincent D. , Drew Jacob M. , Sachs Barton L. 
Published: February 2018

Background:
In an era of mandatory bundled payments for total joint replacement, accurate analysis of the cost of procedures is essential for orthopaedic surgeons and their institutions to maintain viable practices. The purpose of this study was to compare traditional accounting and time-driven activity-based costing (TDABC) methods for estimating the total costs of total hip and knee arthroplasty care cycles.

Methods:
We calculated the overall costs of elective primary total hip and total knee replacement care cycles at our academic medical center using traditional and TDABC accounting methods. We compared the methods with respect to the overall costs of hip and knee replacement and the costs for each major cost category.

Results:
The traditional accounting method resulted in higher cost estimates. The total cost per hip replacement was $22,076 (2014 USD) using traditional accounting and was $12,957 using TDABC. The total cost per knee replacement was $29,488 using traditional accounting and was $16,981 using TDABC. With respect to cost categories, estimates using traditional accounting were greater for hip and knee replacement, respectively, by $3,432 and $5,486 for personnel, by $3,398 and $3,664 for space and equipment, and by $2,289 and $3,357 for indirect costs. Implants and consumables were derived from the actual hospital purchase price; accordingly, both methods produced equivalent results.

Conclusions:
Substantial cost differences exist between accounting methods. The focus of TDABC only on resources used directly by the patient contrasts with the allocation of all operating costs, including all indirect costs and unused capacity, with traditional accounting. We expect that the true costs of hip and knee replacement care cycles are likely somewhere between estimates derived from traditional accounting methods and TDABC. TDABC offers patient-level granular cost information that better serves in the redesign of care pathways and may lead to more strategic resource-allocation decisions to optimize actual operating margins.
Perioperative Allogeneic Red Blood-Cell Transfusion Associated with Surgical Site Infection After Total Hip and Knee Arthroplasty
Authors: Everhart Joshua S. , Sojka John H. , Mayerson Joel L. , Glassman Andrew H. , Scharschmidt Thomas J. 
Published: February 2018

Background:Perioperative allogeneic red blood-cell transfusion is a suspected risk factor for surgical site infection (SSI) after total joint arthroplasty (TJA), but the interrelationships among SSI risk, transfusion dose, preoperative anemia, and the presence of coagulopathies have not been well described.Methods:Data on SSI within 1 year after surgery as well as on transfusion with blood products within 30 days after surgery were obtained for 6,788 patients who had undergone primary or revision total hip or knee arthroplasty from 2000 to 2011 in a single hospital system. Multivariate logistic regression modeling was used to determine the independent association between allogeneic red blood-cell transfusion and SSI.Results:There was a dose-dependent association between allogeneic red blood-cell transfusion and SSI, with the infection rate increasing as the transfusion dose increased from 1 unit (odds ratio [OR] = 1.97; 95% confidence interval [CI] = 1.38, 2.79; p < 0.001), to 2 units (OR = 2.20; CI = 1.37, 3.44; p = 0.002), to 3 units (OR = 3.66; CI = 1.72, 7.16; p = 0.001), and to >3 units (OR = 7.40; CI = 4.91, 11.03; p < 0.001) after controlling for medical comorbidities, planned procedure, preoperative anemia, and preexisting coagulopathies. A preexisting bleeding disorder (OR = 2.09; CI = 1.57, 2.80; p < 0.001) and clotting disorder (OR = 1.37; CI = 1.14, 1.64; p = 0.001) and preoperative anemia (OR = 3.90; CI = 3.31, 4.61; p < 0.001) were all independent risk factors for transfusion after adjusting for the planned procedure.Conclusions:We found a dose-dependent relationship between allogeneic red blood-cell transfusion and SSI risk after total hip or knee arthroplasty. Additionally, preoperative anemia or a known bleeding or clotting disorder were risk factors for the need for allogeneic red blood-cell transfusion. Our findings underscore the need for preoperative risk assessment, methods to limit surgical tissue injury, and optimized blood conservation strategies.Level of Evidence:TherapeuticLevel III. See Instructions for Authors for a complete description of levels of evidence.
Appropriateness Criteria for Total Knee Arthroplasty
Authors: Riddle Daniel L. , Ghomrawi Hassan , Jiranek William A. , Dumenci Levent , Perera Robert A. , Escobar Antonio 
Published: February 2018

Abstract:
Appropriateness classification for total knee arthroplasty (TKA) has received substantial attention recently, and Katz and colleagues published an Orthopaedic Forum on the topic in The Journal of Bone & Joint Surgery in February 2017. Classifications of appropriateness are particularly important given the rapid rise in use of TKA and a variety of third-party payer approaches designed to control health-care costs. We respond to some of the concerns addressed by Katz and colleagues, and elaborate on what we believe are some important issues related to both older and newer appropriateness criteria for TKA.
Equal Pay for Equal Work
Authors: Holliday Emma B. , Brady Christina , Pipkin William C. , Somerson Jeremy S. 
Published: February 2018

Background:
The observed sex gap in physician salary has been the topic of much recent debate in the United States, but it has not been well-described among orthopaedic surgeons. The objective of this study was to evaluate for sex differences in Medicare claim volume and reimbursement among orthopaedic surgeons.

Methods:
The Medicare Provider Utilization and Payment Public Use File was used to compare claim volume and reimbursement between female and male orthopaedic surgeons in 2013. Data were extracted for each billing code per orthopaedic surgeon in the year 2013 for total claims, surgical claims, total knee arthroplasty (TKA) claims, and total hip arthroplasty (THA) claims.

Results:
A total of 20,546 orthopaedic surgeons who treated traditional Medicare patients were included in the initial analysis. Claim volume and reimbursement received were approximately twofold higher for all claims and more than threefold higher for surgical claims for male surgeons when compared with female surgeons (p < 0.001 for all comparisons). A total of 7,013 and 3,839 surgeons performed >10 TKAs and THAs, respectively, in 2013 for Medicare patients and were included in the subset analyses. Although male surgeons performed a higher mean number of TKAs than female surgeons (mean and standard deviation, 37 ± 33 compared with 26 ± 17, respectively, p < 0.001), the claim volume for THAs was similar (29 ± 22 compared with 24 ± 13, respectively, p = 0.080). However, there was no significant difference in mean reimbursement payments received per surgeon between men and women for TKA or THA ($1,135 ± $228 compared with $1,137 ± $184 for TKA, respectively, p = 0.380; $1,049 ± $226 compared with $1,043 ± $266 for THA, respectively, p = 0.310).

Conclusions:
Female surgeons had a lower number of total claims and reimbursements compared with male surgeons. However, among surgeons who performed >10 THAs and TKAs, there were no sex differences in the mean reimbursement payment per surgeon.

Clinical Relevance:
The number of women in orthopaedics is rising, and there is much interest in how their productivity and compensation compare with their male counterparts.
Effects of colloidal humic acid on the transport of sulfa antibiotics through a saturated porous medium under different hydrochemical conditions
Authors: Liang Xiujuan , Liu Dan , Zhou Jingjing , Zhang Yuling , Zhang Wenjing 
Published: February 2018

Abstract
Colloidal humic acid (HA) acts as a vector that can facilitate the transport of contaminants in groundwater. However, investigations of factors that enhance the transport of sulfa antibiotics when there are colloids present remain incomplete to date. In this study, column experiments were performed under different conditions (particle size, pH, ionic strength, cation valence, colloidal concentration) using 0.25 mg/L sulfamerazine (SM) with or without colloids. The results showed that antibiotics were more easily deposited on the surface of porous media with a diameter of 0.22 mm than 0.45 mm. As the pH increased from 6 to 8, adding colloidal HA increased the maximum breakthrough concentration from 0.94 to 1 for SM. Adding colloidal HA at different NaCl concentrations decreased the maximum C/C0 ratio from 0.97 to 0.92. However, adding colloidal HA changed the C/C0 ratio more when the divalent cation (Ca2+) was present. Overall, increasing the colloidal HA concentration clearly caused the effluent sulfamerazine concentration to increase.
A Friendly Environmental CE Method to Determine Doxycycline Hyclate in Suppositories and Application to Tablet Assay
Authors: Christ Ana P. , Burin Sulen L. , Adams Andréa I.H. 
Published: February 2018

Background:
The demand for green analytical methods is rising, mainly due its impact on
the reduction of waste generation. The official method to assay Doxycycline Hiclate (DOXH) is HPLC,
using an unusual column and a multi-component mobile phase.

Objective:
To develop a capillary electrophoresis method (CZE) to assay DOXH in suppositories and
tablets.

Methods:
Doxycycline was analyzed in a CZE system using a fused silica capillary silica (effective
length 40 cm), voltage 25kV, temperature 24°C, detection at 260 nm and hydrodynamic injection of
50mBar/5s. The electrolyte was a mixture of acetonitrile and aqueous solution composed of 25 mM
sodium carbonate and 5mM EDTA, pH 10.6.

Results:
The method was validated according to ICH requirements and DOXH detection was achieved
at around 5 min. A linear relationship was observed in the range of 20 to 160 µg.mL-1, the method was
precise, showing values of relative standard deviation below 2%. Accuracy was demonstrated by
DOXH recovery values ranging from 98.0 to 102.0%, for all the formulations. The specificity was studied
by the peak purity evaluation and by the good resolution between peaks of DOXH, degradation
products and a related substance intentionally added to the sample solution. Robustness was evaluated
by 23 full factorial design, and no effect on DOXH assay was observed under simultaneous variation in
significant analytical parameters.

Conclusion:
This simple and inexpensive method may be used to determine DOXH in suppositories as
well tablets, under identical analytical conditions and can be a green alternative to the HPLC official
method.
Influences of Morphology of Window Layer on the Characteristics of PbS Quantum Dot Solar Cells
Authors: Ha Nguyen Thu , Lam Nguyen Dinh 
Published: February 2018

Background:
In QDs-based solar cell devices, the PbS QDs layer was mainly focused
to optimize. The ZnO electron acceptor layer attracts less attention whereas it shows the key
roles in extracting and transporting charge carriers in heterojunction. The utilization of 1-D ZnO
structures has been demonstrated to be large interface areas and good carrier pathways for efficient
carrier collection. However, the influences of the morphology of metal oxide nanostructures
on the photovoltaic performance of QD-based solar cells have been few in-depth reports.

Objective:
In this work, ZnO NRs/PbS QD based solar cells were fabricated. The influences of
the ZnO NRs array structures on characteristics of ZnO NRs/PbS QD based solar cells were investigated.

Method:
ZnO NRs/PbS QD based solar cells were fabricated via spin coating method. XRD,
SEM, UV-VIS-NIR spectrophotometer, I-V and EQE measurement systems were utilized to investigate
the fabricated samples.

Results:
We have found optimum combinations of the linked parameters of ZnO NRs, their
length of (230 ± 5) nm and density of (1.50 ± 5)x1010 # of rods.cm-2, that exhibit maximum efficiency
of ∼2.5% for the ZnO NR/PbS QDs based solar cell.

Conclusion:
The influences the ZnO NRs structures on the solar cell characteristics, including
the absorption, external quantum efficiency, and current density-voltage curves, were investigated.
There seems to be an optimum between NR length and their density for resulting in maximum
efficiency. This could be due the interplay of solar flux absorption and junction area controlled
by these two parameters of ZnO NR morphology.