bluuebunny/crossref_metadata_2025_split huggingface dataset:
Surgical treatment of acute Rockwood III acromioclavicular dislocations—Comparative study between two flip-button techniques
Authors: WANG Yu-chen , M. A. Yong , Y. U. Wei-zhong , WANG Hui 
Published: March 2020

AbstractAcromioclavicular joint dislocation is a common shoulder injury, usually caused by direct violence on the shoulder. Optimal treatment of type III is still a hot discussion currently in orthopedic surgeons. With the advent of many flip-button techniques, Tightrope system and Endobutton system become popular techniques for reconstruction of coracoclavicular ligaments. The purpose of the study was to compare the clinical and radiological results between the two techniques. A retrospective case-control study was conducted in 60 patients with acute Rockwood III acromioclavicular joint dislocation. The two techniques conducted were open procedures using Twin Tail Tightrope system (Group A, n = 30) and Endobutton system (Group B, n = 30). 60 patients were followed up at least two years. Surgical parameters including incision length, operation time and operative blood loss were analyzed. Functional outcomes were evaluated using the Constant-Murley Score. Radiological results were assessed based on coracoclavicular distance preoperatively, one day postoperatively, and at the final follow-up. 60 patients were followed up for at least 24 months (range 24 to 32). The incision length and operation time were shorter in Group A than that in Group B. The blood loss of surgery was significantly less in the Group A. There were no significant differences between the two groups regarding the Constant-Murley Score at the final follow-up. No significant differences were found in the coracoclavicular distance preoperatively, immediately postoperatively, and at the final follow-up. Both techniques offered satisfying functional outcomes, however the Tightrope system provided better surgical parameters.
Multiple Impacted Teeth: Report of 3 Cases
Authors: Bayar Gürkan Raşit , Ortakoḡlu Kerim , Sencimen Metin 
Published: March 2020

ABSTRACTWhile impaction of tooth is widespread, multiple impacted teeth by itself is a rare condition and often found in association with syndromes such as cleidocranial dysplasia or Gardner’s syndrome. A light of radiographic examination, we describe three Turkish young males with multiple impacted teeth who didn’t possess any systemic conditions or syndromes involving both jaws. The first patient, a 21-year-old young male, had 16 unerupted teeth and 5 unerupted supernumerary teeth. The second patient with totally edentulous mandible, a 20-year-old young male, had 31 unerupted teeth. The third patient, a 21-year-old young male, had 22 unerupted teeth and 4 unerupted supernumerary teeth. Based on the clinical presentation, radiographic examination and histopathological studies, this paper discusses the differential diagnosis and management of such cases. (Eur J Dent 2008;2:73-78)
Mandibular Incisor Extraction Treatment of a Class I Malocclusion with Bolton Discrepancy: A Case Report
Authors: Bayram Mehmet , Özer Mete 
Published: March 2020

ABSTRACTMany approaches for crowded mandibular anterior teeth are currently employed: distal movement of posterior teeth, lateral movement of canines, labial movement of incisors, interproximal enamel reduction, removal of premolars, removal of one or two incisors, and various combinations of the above. Selecting the best treatment is often difficult, and all guidelines do not apply to every case. Treatment by extraction of one single mandibular incisor is not popular in the orthodontic profession despite the apparent advantages of the extraction in the region of crowding. A case report is presented one mandibular incisor extraction treatment of a 16 year-old female with a Class I malocclusion that shows a significant mandibular arch length deficiency and mandibular tooth-size excess. In this case, the degree of mandibular anterior dental crowding, existing mandibular tooth-size excess, and the dental midline discrepancy were indicated the extraction of one mandibular incisor. (Eur J Dent 2007;1:54-59)
Learning pragmatics through tasks
Authors: Barón Júlia , Celaya M. Luz , Levkina Mayya 
Published: March 2020

Abstract
This study aims at examining the benefits of teaching L2 pragmatics with the use of tasks. The participants were
50 Catalan/Spanish bilingual students (aged 12–14) from three intact classes who were learners of English as a Foreign Language
and with an upper-intermediate level of proficiency. The three groups followed different approaches to teaching pragmatics: G1 was
instructed in pragmatics following a task-supported approach; G2 was also instructed in pragmatics but no tasks were used; and G3
was a control group with no instruction on pragmatics and no use of tasks, either. To assess pragmatic learning, role-plays were
used both before and after the pedagogical intervention. The pragmatic analysis focused on the speech acts of giving opinion,
agreeing/disagreeing, interrupting, and acknowledging the interlocutor. Results showed that the two instructed groups, regardless
of the type, were more pragmatically competent in the posttest in one of the pragmatic moves (i.e., interrupting). Additionally,
G1 presented statistically significant differences in the posttest when acknowledging the interlocutor. Regarding the control
group, no differences were found in any of the moves. These findings suggest that instruction in general, and task-supported
instruction in particular, has a positive impact on the development of interlanguage pragmatics in a classroom context.
The narrative structure of stressful interpersonal events
Authors: Ho Ivy K. , Newton Tamara L. , McCabe Allyssa 
Published: March 2020

Abstract
Narrating personal experiences helps people make sense of them and contributes to improved well-being. However,
little is known about how people recount stressful experiences that are interpersonal in nature. In this study, middle-aged North
American women (N = 36), with lifetime histories of victimization, provided accounts of a recent stressful
interpersonal event. High Point Analysis was applied to analyze the narratives. The majority (55%) of narratives were
characterized by extensive evaluative content, categorized as End at High Point. The next most common (38%) category of responses
were Emotional Narratives, characterized by a concentration of evaluative statements with little or no complicating action. Thus,
participants’ memories of their stressful interpersonal events were caught in an unresolved, emotionally charged, limbo. Results
reveal a novel approach to analyzing narratives of interpersonal stressors, and shed light on the relationship between
victimization histories and narration of interpersonal experiences.
A Kinetic Study on Supercritical Carbon-dioxide Extraction of Indonesian Trigona sp. Propolis
Authors: Fachri B A , Rizkiana M F , Muharja M 
Published: March 2020

Abstract
This work is to investigate the supercritical CO2 extraction of Indonesian Trigona sp. raw propolis. The kinetic study was conducted at CO2 mass flowrate of 15 g/min, the temperature of 50 °C and pressure (250-350 bar). The process was run for 3 h and the extract was accumulated every 30 min. The proposed mathematical extraction models were Sovova, Logistic and Reverchon. The result shows that Sovova model gives a good fit between calculated and data value. The Sovova model also has lower SSE than Logistic and Reverchon model. The highest extract of 46 wt% was achieved at extraction time of 60 min, the temperature of 50 °C, the mass CO2 flowrate 20 g/min and the pressure 300 bar. The extract constituent consisting of galangin, p-coumaric acid, ferulic acid, caffeic acid, cinnamic acid, kaempferol, and chrysin was detected by HPLC analysis. The antioxidant activity analyzed by DPPH method was expressed as IC50 and the value is comparable to ascorbic acid.
Simulation and Parametric Study of the Innovative Process to Produce High Purity Isopropyl Acetate with Ethylene Oxide Hydration as an Auxiliary Reaction
Authors: Wiratama I G P , Novianty V 
Published: March 2020

Abstract
Production of high purity isopropyl acetate by esterification is a difficult process since the equilibrium conversion is relatively low and there are azeotropes between isopropyl acetate with water and between isopropyl acetate with the reactants. In this research, an innovative process to produce high purity isopropyl acetate with auxiliary reaction of ethylene oxide hydration was proposed. The process consisted of a reactor and a simple distillation column. The auxiliary reaction abolished the water/isopropyl acetate azeotrope and shifted the esterification equilibrium to the right. Impacts of the reactor type, the feed temperature, the reflux ratio, and the bottoms rate were investigated by simulating the process in Aspen Plus software. The results revealed that the innovative IpAc production with auxiliary reaction of EO hydration gave very high esterification conversion (up to 99.8%) and very high purity of IpAc (up to 99.7%). These results were achieved when the reactor type was isothermal at feed temperature, the feed temperature was 77°C, the reflux ratio was 1, and the bottoms rate was 10 kmol/h.
Evaluation of CCS Networks Based on Pinch Design Method in the Central Part of Indonesia
Authors: Handogo Renanto , Juwari  , Altway Ali , Annasit  
Published: March 2020

Abstract
At least for two decades, various techniques have been developed to solve the greenhouse gas emissions problem. The carbon capture and storage (CCS) technology is the main solution to reduce carbon dioxide emissions from the industrial sector and power plant. CCS involves the capture of CO2 emissions from an exhaust gas, transporting and storing in geological storage. All of these CCS activities give several planning problems related to geographical conditions that may be an archipelago country, a considerable distance between the CO2 sources and sinks, and the difference in time of CO2 capturing and injecting to storage. The process integration technique by pinch design method can be used for CCS networks. This paper presents an application of pinch design method for CCS networks in central parts of Indonesia. The integration of carbon incentive and carbon tax is proposed to evaluate the value of CCS networks. The effect of time difference between sources and sinks on the amount of CO2 uncaptured was considered to assess the sensitivity of CCS project’s value. The results showed that the combination of pinch design method with the carbon trading and carbon tax provided a potential method to assess the effectiveness of CCS networks.
Antioxidant Stability Testing On Liquid And Powder Eichhornia Crassipes Extract
Authors: Nugriani Nandhita Octavia , Dr. –Ing. Diah I. W. , M.Sc S.T , Yusri Silvya , M.T S.Si 
Published: March 2020

Abstract
Water hyacinth or Eicchornia crassipes is a free-floating aquatic plant and is easily found in swamps or rivers. The rapid growth of water hyacinth can disrupt the aquatic environment, thus water hyacinth is categorized as one of the world’s worst weed. The challenge is not on how to eliminate the number of this weed, but on how to take advantage by the presence of this water plant. Water hyacinth is known to contain high phenolic content and antioxidant activity. Water hyacinth was extracted using 96% ethanol/water with mass to solvent ratio of 1:30 at 3 different temperatures (30°C, 40°C, 50°C). Spray drying was conducted to produce extract powder with the addition of maltodexrin and Arabic gum as the encapsulating agents. The stability of liquid and powder extract was compared based on the Total Phenolic Content (TPC) and antioxidant activity. The highest TPC was obtained from extraction at 30°C whereas the highest antioxidant activity was obtained from extraction at 50°C. In powder extract, the highest TPC and antioxidant activity was obtained from powder with ratio 2:1 of TSS to encapsulating agents. The stability was performed under different storage conditions. The degradation of TPC was faster in room temperature.
Effect of Combining Microbial Cellulose Pulp from Nata de Tomato with Tomato Powder on Paper Qualities
Authors: Sugiarto D , Wanta K C , Miryanti Y I P A 
Published: March 2020

Abstract
Tomato is a fruit that does not last long (perishable), so it is necessary to find another alternative to increase its economic value. One of those alternatives that can be done is by making a fermented product called nata de tomato. Nata de tomato contains microbial cellulose which is formed by the bacteria Acetobacter xylinum. This microbial cellulose has some advantages over the typical cellulose found in common plants. Thus, it potentially could be further developed in the papermaking. This research was conducted to study the effects of combining microbial cellulose pulp from nata de tomato with tomato powder on paper quality, such as water content, grammage and water absorbency. In this research, the tomato filtrate was used as a growth medium for Acetobacter xylinum to produce nata de tomato. Then, nata de tomato was shredded into pulp, while its waste was dried into tomato powder and used as additional material for the pulp. This research was designed using a single factor experiment with variation in the addition of tomato powder by 0, 1, 3 and 5 % (w/w). The effects of this variation observed using variance analysis and significant test using the LSD (Least Significant Difference) method.
Methane Storage Performance in NiO Modified Soybean Straw Based-Activated Carbon
Authors: Nafisah A.R. , Yuliusman  , Nasruddin  , Nugroho Y.W 
Published: March 2020

Abstract
Adsorbed natural gas technology can be developed through the development of its adsorbent, especially activated carbon (AC). Biomass-based AC is possible to synthesize, especially by soybean straw which has cellulose content of 44-48 % and hemicellulose content up to 14%. Soybean straw-based AC with surface area 741 m2/g was used and through modifying process using metal oxide. The NiO-modification was done with a concentration variation of 0.5%, 1%, and 2%. Natural gas adsorption by synthesized AC was executed in the pressure range of 5-10 bars with interval 1 bar and temperature variation of 27°C, 31°C, and 35°C. The best non-modified AC was obtained with ZnCl2 as an activator with Sbet of 741 m2/g and iodine number of 578 mg/g. The best modified AC was obtained with 2%-NiO modification with ZnCl2 as an activator with SBET of 632 m2/g and iodine number of 535 mg/g. The best adsorption capacity of synthesized AC reached 31.9 mg/g by modified AC on 10 bars and 27°C, and desorption/adsorption efficiency reaches 41.87% on 35°C, showing the effects of pressure and temperature on adsorbed natural gas.
Synthesis and Characterization of Coffee Based-Activated Carbon with Different Activation Methods
Authors: Yuliusman  , Bernama A. , Nafisah A.R. 
Published: March 2020

Abstract
Activated carbon (AC) is used in many applications because it has many strengths such as high adsorption ability, inexpensive, and not hazardous. The use of agricultural waste in AC production has become a popular topic in recent years. One of the waste materials that can be utilized is coffee wastes. Indonesian have a high rate of coffee consumption which results in a high number of wastes. In general, the AC generation was done by three main steps; carbonization at 400 C, chemical activation using KOH and physical activation using CO2 with a 100 ml/minute flow rate. The obtained results showed that AC has the highest iodine number of 443.58 mg/g and a surface area of 399.05 m2/g. The SEM results indicated the pore had formed on the carbon surface. The carbon mass percentage was known at 67.5% from the EDX test. These results showed that coffee waste can be used as an alternative raw material and can be used for several needs.
Effect of Temperature on Rare Earth Elements Recovery from Coal Fly Ash Using Citric Acid
Authors: Prihutami Pramesti , Sediawan Wahyudi Budi , Astuti Widi , Prasetya Agus 
Published: March 2020

Abstract
Production of fly ash as a solid waste of coal combustion rises as the need of electricity in Indonesia increases. In 2020, the amount of fly ash produced is estimated to reach 9.72 million tons. Utilization of coal fly ash is still limited while poor handling on abundant amount of this material can cause air, soil and water pollution. This research aims to recover rare earth elements contained in coal fly ash. In this study, the recovery of La, Ce, Nd, Dy and Y was done using citric acid. Magnetic phase of fly ash with particle size less than 38 μm from PLTU Tanjung Awar-awar Tuban was leached with 300 mL citric acid of 0.5 M using solid/liquid ratio of 1:10. The experiment was carried out in various temperature of 26°C and 45°C. Liquid samples were taken at 2, 5, 10, 15, 30, 60, 90, 120 and 240 minutes to be analyzed. The five elements recovered was found to rise until the end of the leaching period. Value of relative recovery also increases along with leaching temperature. The greatest recovery value is reached by yttrium that are 51.00% for leaching at 26°C and 83.35% at 45°C.
Microwave Assisted KOH Activation of Salacca Peel Dericed Activated Carbons as Adsorbents for Methylene Blue Removal from Aqueous Phase
Authors: Klemantan Johan , Kristianto Hans , Arie Arenst Andreas 
Published: March 2020

Abstract
In this study, salacca peel derived activated carbons (SPAC) were prepared by microwave assisted- KOH activation process. In the preparation process, the fixed mass ratio between salacca peel and KOH of 1:2 was used. Next, the effects of activation time (5, 15, 20 and 25 minutes) and microwave power (30, 380 and 700 W) on the characteristics of SPAC were then investigated. The BET surface area of SPAC was about 1491 m2/g for activation time of 25 minutes and microwave power of 700 W. The as-prepared SPAC was then then as adsorbents for methylene blue (MB) removal from aqueous phase. The adsorption data of SPAC were analyzed by Langmuir and Freundlich adsorption isotherms and the best correlation was shown by the Langmuir isotherm with maximum capacity of 327.9 mg/g. The analyses of kinetic data showed that the adsorption of MB on SPAC follow the pseudo-second order kinetic model.
A Black Sherlock Holmes(1918): A Case Study in Racebending
Authors: McClellan Ann 
Published: March 2020

AbstractWith hundreds of Sherlock Holmes screen adaptations, the silent all-Black-cast A Black Sherlock Holmes (1918) remains an under-researched anomaly. The essay provides an overview of colourblind and colour conscious casting practices, ultimately advocating for adopting fan studies approaches to ‘racebending’. Racebending involves alternately ‘racing’ canonical characters from white to Black Minority Ethnic. After briefly reviewing representations of African Americans in blackface minstrelsy and early twentieth-century race films, the essay argues that A Black Sherlock Holmes highlights the ways in which race filmmakers were trying to reimagine new ways for African Americans to become part of dominant literary culture. In reimagining Sherlock Holmes as an African American, the film (re)inscribes Black people into prominent literary and cultural history. Because Knick Garter is doubly descended from two notable fictional detectives, America’s Nick Carter of dime novel fame as well as Britain’s legendary Sherlock Holmes, his very existence posits a new world where famous Black characters are as much a part of the American literary landscape as canonical characters from Hawthorne, Poe, and Twain. Viewing A Black Sherlock Holmes in light of the possibilities the film offers, rather than its limitations, allows viewers today to see the ways literary history, film, and race coalesced to highlight the possibilities of radical racial change in the post-Reconstruction era at the beginning of the twentieth century.
Reinfection Following Successful Direct-acting Antiviral Therapy for Hepatitis C Virus Infection Among People Who Inject Drugs
Authors: Cunningham Evan B , Hajarizadeh Behzad , Amin Janaki , Hellard Margaret , Bruneau Julie , Feld Jordan J , Cooper Curtis , Powis Jeff , Litwin Alain H , Marks Philippa , Dalgard Olav , Conway Brian , Moriggia Alberto , Stedman Catherine , Read Phillip , Bruggmann Philip , Lacombe Karine , Dunlop Adrian , Applegate Tanya L , Matthews Gail V , Fraser Chris , Dore Gregory J , Grebely Jason 
Published: March 2020

Abstract

Background
The aim of this analysis was to calculate the incidence of hepatitis C virus (HCV) reinfection and associated factors among 2 clinical trials of HCV direct-acting antiviral treatment in people with recent injecting drug use or currently receiving opioid agonist therapy (OAT).

Methods
Participants who achieved an end-of-treatment response in 2 clinical trials of people with recent injecting drug use or currently receiving OAT (SIMPLIFY and D3FEAT) enrolled between March 2016 and February 2017 in 8 countries were assessed for HCV reinfection, confirmed by viral sequencing. Incidence was calculated using person-time of observation and associated factors were assessed using Cox proportional hazard models.

Results
Seventy-three percent of the population at risk of reinfection (n = 177; median age, 48 years; 73% male) reported ongoing injecting drug use. Total follow-up time at risk was 254 person-years (median, 1.8 years; range, 0.2–2.8 years). Eight cases of reinfection were confirmed for an incidence of 3.1/100 person-years (95% confidence interval [CI], 1.6–6.3) overall and 17.9/100 person-years (95% CI, 5.8–55.6) among those who reported sharing needles/syringes. Younger age and needle/syringe sharing were associated with HCV reinfection.

Conclusions
These data demonstrate the need for ongoing monitoring and improved strategies to prevent HCV reinfection following successful treatment among people with ongoing injecting drug use to achieve HCV elimination.

Clinical Trials Registration
NCT02336139 and NCT02498015.
Antibiotic Treatments During Infancy, Changes in Nasal Microbiota, and Asthma Development: Population-based Cohort Study
Authors: Toivonen Laura , Schuez-Havupalo Linnea , Karppinen Sinikka , Waris Matti , Hoffman Kristi L , Camargo Carlos A , Hasegawa Kohei , Peltola Ville 
Published: March 2020

Abstract

Background
Early-life exposures to antibiotics may increase the risk of developing childhood asthma. However, little is known about the mechanisms linking antibiotic exposures to asthma. We hypothesized that changes in the nasal airway microbiota serve as a causal mediator in the antibiotics–asthma link.

Methods
In a population-based birth-cohort study in Finland, we identified longitudinal nasal microbiota profiles during age 2–24 months using 16S rRNA gene sequencing and an unsupervised machine learning approach. We performed a causal mediation analysis to estimate the natural direct effect of systemic antibiotic treatments during age 0–11 months on risks of developing physician-diagnosed asthma by age 7 years and the natural indirect (causal mediation) effect through longitudinal changes in nasal microbiota.

Results
In our birth cohort of 697 children, 8.0% later developed asthma. Exposure to ≥2 antibiotic treatments during age 0–11 months was associated with a 4.0% increase in the absolute risk of developing asthma (absolute increase, 95% CI, .9–7.2%; P = .006). The unsupervised clustering approach identified 6 longitudinal nasal microbiota profiles. Infants with a larger number of antibiotic treatments had a higher risk of having a profile with early Moraxella sparsity (per each antibiotic treatment, adjusted RRR, 1.38; 95% CI, 1.15–1.66; P &lt; .001). This effect of antibiotics on asthma was partly mediated by longitudinal changes in the nasal microbiota (natural indirect effect, P = .008), accounting for 16% of the total effect.

Conclusions
Early exposures to antibiotics were associated with increased risk of asthma; the effect was mediated, in part, by longitudinal changes in the nasal airway microbiota.