bluuebunny/crossref_metadata_2025_split huggingface dataset:
Conditioning of Tobacco and Tobacco Products: The Effect of Forced Air Flow
Authors: Chen Zhihao , Miao Qian , Zhao Jijun , Ding Li , Xiao Yan , Wang Huiping , Qin Yunhua , Xiong Wen , Tao Hong , Wang Yu , Lv Xiaodong , Feng Qian 
Published: June 2019

Summary
Conditioning is a very important procedure for tobacco and tobacco products before their corresponding chemical and physical analysis. For cigarettes, forced air flow is generally required during the conditioning procedure. A special wind tunnel was designed to investigate how the forced air flow affects the conditioning of cigarettes in a constant climate laboratory. Two types of cigarettes with blended (including flue-cured and burley tobacco strands) and pure flue-cured tobacco strands were selected as test samples. It was found that the conditioning time to achieve the equilibrium could be shortened from 23 h without forced air flow to 7 h with a forced air flow rate of 2m/s. This is mainly due to the exchange of water molecules between cigarette samples and atmosphere being accelerated by applying the forced air flow. It was concluded that a 48 h conditioning period using the described forced air flow rate setup was unnecessary to attain the equilibrium for cigarettes. [Beitr. Tabakforsch. Int. 28 (2019) 224–229]
Sustainable Learning Levels of High School Students
Authors: Eskici Menekşe 
Published: June 2019

Abstract
The aim of this study was to determine sustainable learning levels of students. The study also attempted to determine sustainable learning levels of students based on gender and grade. The participants of the study consisted of 742 high school students (354 females and 388 males) in various high schools in Babaeski district of Kırklareli, Turkey during the 2017–2018 academic year. In order to collect data, a scale with two subscales – behavioural and cognitive – was developed. The data were analysed through SPSS 17, and arithmetic mean, standard deviation, t-test and one-way analysis of variance (One Way Anova) were used. According to the results of the study, it is concluded that sustainable learning level of the high school students is moderate. The study also found a significant variation in favour of the female students in “learning for development” subdimension on the cognitive subscale of the scale.
On the search for sources of good and evil in the Lvov-Warsaw School of Philosophy
Authors: Konstańczak Stefan 
Published: June 2019

Abstract
In this article, the author attempts to identify the sources of good and evil as undertaken by the Lvov-Warsaw School of Philosophy (LWSP) founded by Kazimierz Twardowski. Such attempts were undertaken by both Twardowski himself and his closest students and associates; Władysław Witwicki, Tadeusz Kotarbiński. Tadeusz Czeżowski, and Kazimierz Ajdukiewicz. The best-known approach is Kotarbiński’s independent ethics in which the author refers to Aristotle perceiving such potential in the characteristics of each individual as to distinguish elementary qualities in the form of opposites including opposition to good and evil. According to this approach, man acts in an evil manner because he stops following the natural voice of his own heart and instead implements set proposals provided by external factors. In the opinion of the author, the proposals formulated within the LWSP can form the basis for a rational explanation of the atrocities committed during World War II which modern ethics, being focused on neutral metaethical issues, fails to do.
Normalizing Book Citations in Google Scholar: A Hybrid Cited-side Citing-side Method
Authors: Mingers John , Kaymaz Eren 
Published: June 2019

Abstract

Purpose
To design and test a method for normalizing book citations in Google Scholar.

Design/methodology/approach
A hybrid citing-side, cited-side normalization method was developed and this was tested on a sample of 285 research monographs. The results were analyzed and conclusions drawn.

Findings
The method was technically feasible but required extensive manual intervention because of the poor quality of the Google Scholar data.

Research limitations
The sample of books was limited and also all were from one discipline —business and management. Also, the method has only been tested on Google Scholar, it would be useful to test it on Web of Science or Scopus.

Practical limitations
Google Scholar is a poor source of data although it does cover a much wider range citation sources that other databases.

Originality/value
This is the first method that has been developed specifically for normalizing books which have so far not been able to be normalized.
Evolution of the Socio-cognitive Structure of Knowledge Management (1986–2015): An Author Co-citation Analysis
Authors: González-Valiente Carlos Luis , Santos Magda León , Arencibia-Jorge Ricardo 
Published: June 2019

Abstract

Purpose
The evolution of the socio-cognitive structure of the field of knowledge management (KM) during the period 1986–2015 is described.

Design/methodology/approach
Records retrieved from Web of Science were submitted to author co-citation analysis (ACA) following a longitudinal perspective as of the following time slices: 1986–1996, 1997–2006, and 2007–2015. The top 10% of most cited first authors by sub-periods were mapped in bibliometric networks in order to interpret the communities formed and their relationships.

Findings
KM is a homogeneous field as indicated by networks results. Nine classical authors are identified since they are highly co-cited in each sub-period, highlighting Ikujiro Nonaka as the most influential authors in the field. The most significant communities in KM are devoted to strategic management, KM foundations, organisational learning and behaviour, and organisational theories. Major trends in the evolution of the intellectual structure of KM evidence a technological influence in 1986–1996, a strategic influence in 1997–2006, and finally a sociological influence in 2007–2015.

Research limitations
Describing a field from a single database can offer biases in terms of output coverage. Likewise, the conference proceedings and books were not used and the analysis was only based on first authors. However, the results obtained can be very useful to understand the evolution of KM research.

Practical implications
These results might be useful for managers and academicians to understand the evolution of KM field and to (re)define research activities and organisational projects.

Originality/value
The novelty of this paper lies in considering ACA as a bibliometric technique to study KM research. In addition, our investigation has a wider time coverage than earlier articles.
Does a Country/Region’s Economic Status Affect Its Universities’ Presence in International Rankings?
Authors: Tuesta Esteban Fernández , Garcia-Zorita Carlos , Ayllon Rosario Romera , Sanz-Casado Elías 
Published: June 2019

Abstract

Purpose
Study how economic parameters affect positions in the Academic Ranking of World Universities’ top 500 published by the Shanghai Jiao Tong University Graduate School of Education in countries/regions with listed higher education institutions.

Design/methodology/approach
The methodology used capitalises on the multi-variate characteristics of the data analysed. The multi-colinearity problem posed is solved by running principal components prior to regression analysis, using both classical (OLS) and robust (Huber and Tukey) methods.

Findings
Our results revealed that countries/regions with long ranking traditions are highly competitive. Findings also showed that some countries/regions such as Germany, United Kingdom, Canada, and Italy, had a larger number of universities in the top positions than predicted by the regression model. In contrast, for Japan, a country where social and economic performance is high, the number of ARWU universities projected by the model was much larger than the actual figure. In much the same vein, countries/regions that invest heavily in education, such as Japan and Denmark, had lower than expected results.

Research limitations
Using data from only one ranking is a limitation of this study, but the methodology used could be useful to other global rankings.

Practical implications
The results provide good insights for policy makers. They indicate the existence of a relationship between research output and the number of universities per million inhabitants. Countries/regions, which have historically prioritised higher education, exhibited highest values for indicators that compose the rankings methodology; furthermore, minimum increase in welfare indicators could exhibited significant rises in the presence of their universities on the rankings.

Originality/value
This study is well defined and the result answers important questions about characteristics of countries/regions and their higher education system.
Supply Chain Simulation in Educational Process
Authors: Vojtek Martin , Kendra Martin , Široký Jaromír , Magdechová Katarína , Šipuš Denis 
Published: June 2019

Abstract
Logistics is defined as an interdisciplinary science, which deals with coordination, harmonization, connection and optimization of material, product and service flows including flows of information and finance. The main aim of logistics is to satisfy needs of the customer with importance of quality aspect and optimal costs. The paper is focused on practical logistic problems within the company, its suppliers and customers so overall supply chain is analyzed there. The aim of the paper is to provide practical simulation and calculation of selected logistic examples such as procurement, storage and distribution on case studies. These logistic aspects are analyzed in way, how are they explained to students in university educational process on school subjects that deal with logistics in some case. The simulation of storage process is done with specialized software called Byron, which is also used for educational purposes.
Adsorption and gas sensing properties of CuFe2O4 nanoparticles
Authors: Haija Mohammad Abu , Basina Georgia , Banat Fawzi , Ayesh Ahmad I. 
Published: June 2019

Abstract
Spinel ferrite nanoparticles in the form CuFe2O4 were tested for gas sensing applications. Nanoparticles pressed in a disk form were used to construct conductometric gas sensors. The disk was placed between two electrical electrodes wherein the top electrode had a grid structure. The produced sensors were tested against H2S and H2 gases and they were found to be selective and sensitive to H2S concentration as low as 25 ppm. The composition of the nanoparticles was confirmed by X-ray diffraction and energy dispersive X-ray spectroscopy measurements. The crystal structure was verified by both X-ray diffraction and transmission electron microscope. The observations obtained from the experiments demonstrated the high potential of using CuFe2O4 nanoparticles for H2S sensing applications.
Idiopathic thrombocytopenic purpura (ITP) – new era for an old disease
Authors: Onisâi Minodora , Vlădăreanu Ana-Maria , Spînu Andreea , Găman Mihaela , Bumbea Horia 
Published: June 2019

Abstract
Immune thrombocytopenia is an autoimmune hematological disorder characterized by severely decreased platelet count of peripheral cause: platelet destruction via antiplatelet antibodies which may also affect marrow megakaryocytes. Patients may present in critical situations, with cutaneous and/or mucous bleeding and possibly life-threatening organ hemorrhages (cerebral, digestive, etc.) Therefore, rapid diagnosis and therapeutic intervention are mandatory.
Corticotherapy represents the first treatment option, but as in any autoimmune disorder, there is a high risk of relapse. Second line therapy options include: intravenous immunoglobulins, thrombopoietin receptor agonists, rituximab or immunosuppression, but their benefit is usually temporary. Moreover, the disease generally affects young people who need repeated and prolonged treatment and hospitalization and therefore, it is preferred to choose a long term effect therapy. Splenectomy – removal of the site of platelet destruction – represents an effective and stable treatment, with 70–80% response rate and low complications incidence.
A challenging situation is the association of ITP with pregnancy, which further increases the risk due to the immunodeficiency of pregnancy, major dangers of bleeding, vital risks for mother and fetus, potential risks of medication, necessity of prompt intervention in the setting of specific obstetrical situations – delivery, pregnancy loss, obstetrical complications, etc.
We present an updated review of the current clinical and laboratory data, as well as a detailed analysis of the available therapeutic options with their benefits and risks, and also particular associations (pregnancy, relapsed and refractory disease, emergency treatment).
Knee arthrodesis as a salvage method for septic TKA failure
Authors: Ciobanu Traian , Japie Ioan Mihau , Nutiu Octavian , Papuc Alexandru , Radulescu Dragos , Radulescu Radu 
Published: June 2019

Abstract
Periprosthetic joint infection is the most common reason for a failed TKA, with a septic TKA reported rate of 1 to 4% of primary TKA patients. Septic TKA has a various number of treatment options which include chronic-suppressive antibiotics, irrigation and debridement, single or staged revision arthroplasty. The goal is to eradicate the periprosthetic joint infection and reimplant a sterile and fully functional total knee prosthesis. In case the infection becomes uncontrollable, there is only one option to eradicate the infection: knee arthrodesis or above-knee amputation.
We report the case of a 63-year-old patient who in 2009 underwent TKA, the 1 year follow-up showed periprosthetic infection. At first stage, the prosthetic implants were removed and a solid cement spacer was shaped to occupy the remaining space. In 2011, after achieving complete clinical and biological remission of the infection, the cement spacer was removed and LCCK revision prosthesis was inserted.
In 2013 reinfection occurred leading to removal of the prosthetic implants and reinsertion of an antibiotic impregnated cement spacer.
Since the patient suffered significant bone loss and the local conditions were unfavorable, being prone to infection, there were 2 options to evaluate: knee arthrodesis or above knee amputation. We chose knee arthrodesis using Ilizarov external fixation technique.
Many surgical techniques are available to achieve knee arthrodesis: internal fixation with plates or intramedullary nails and external fixation. The Ilizarov method is a very effective technique that could be taken into consideration when knee arthrodesis is required.
GCT of knee treated with modular prosthesis-case presentation
Authors: Papuc Alexandru , Japie Ioan Mihai , Ciobanu Traian , Nutiu Octavian , Radulescu Dragos , Radulescu Radu 
Published: June 2019

Abstract
The GCT is an aggressive benign tumor with metastatic potential, most often within the lungs in 2-3% of the patients. It makes about 5% of total bone tumors and about 15% of total benign bone tumors.
The maximum incidence occurs between 30 and 40 years old, most frequently affecting the long bones epiphysis (distal femur, proximal tibia, and distal radius).
We report the case of a 50-year-old female, with no previous medical history, admitted in the emergency department (ED) for significant pain and functional impairment of the left knee. Clinical examination and imaging tests established the diagnosis of distal femoral tumor.
The patient underwent surgical segmental resection of the tumor within oncological limits and subsequent arthroplasty with cemented modular tumoral prosthesis was performed.
Even if the GCT is a benign tumor, it has an aggressive behavior and malignancy potential with an important impact on quality of life. Due to localization, this type of tumor can quickly manifest clinically, which allows an early diagnosis and a less invasive surgical technique.
Is intraabdominal pressure a predictive factor for mortality and morbidity in abdominal trauma?
Authors: Ion Daniel , Păduraru Dan Nicolae , Mușat Florentina , Andronic Octavian , Bolocan Alexandra 
Published: June 2019

Abstract
The clinical signs and symptoms of an acute in increase intraabdominal pressure (IAP) are subtle, especially in the conditions of the polytraumatized patient. Thus, abdominal compartment syndrome (ACS) can brutally occur and can have a major impact on the body’s main organs and systems. The purpose of our research was to identify the influence of intraabdominal pressure, intra-abdominal hypertension, and abdominal compartment syndrome, in the evolution of polytraumatized patients. Our study analyzed the patients admitted in the IIIrd Department of General Surgery of University Emergency Hospital in Bucharest between 1st of January 2010 and 31st of December 2018. The value of intraabdominal pressure, on admission, correlated with the risk of IAH/ ACS in patients with abdominal trauma - being major causes of morbidity and mortality. IAP monitoring should become a mandatory part of the management plan for patients with abdominal trauma.
In-hospital mortality rate after osteoporotic hip fracture in Bucharest
Authors: Dobre Ramona , Niculescu Dan , Popescu Gheorghe , Barbilian Adrian , Cîrstoiu Cătălin , Poiană Cătălina 
Published: June 2019

Abstract
Introduction: Hip fracture is the most severe consequence of osteoporosis and an important cause of excess mortality in the elderly.
Objective: We aimed to evaluate the in-hospital mortality rate after osteoporotic hip fracture in patients treated surgically or functionally in specialized centers in Bucharest.
Materials and methods: We calculated the in-hospital mortality rate in 745 patients (540 women [72.48%], with a mean age of 79.1 ± 11 years), surgically or functionally treated for fragility hip fracture over a 12 months period.
Results: Average length of hospitalization was 18.12 days. In hospital mortality rate was 5.36% (n=40, women 60%). An important risk factor associated with mortality was age, p=0.001. The male sex was also a risk factor with a mortality rate of 7,8% (n=16), compared to 4.44% in women, p<0.005, with OR of 1.57. Out of the 40 patients, 57.5% had a femoral neck fracture, 35% intertrochanteric, and 5.5% atypical fracture in absence of bisphosphonates. 7.5% had previous fragility fractures. 85% of the patients had a history of one or more cardiac pathologies (34.28% with atrial fibrillation), 57.5% underwent surgical intervention (n=23) with an average day of intervention of 8.82 after admission. None of the patients had an osteoporosis treatment before the event and on average 3.73 medications with an increased risk of falling and fracture.
Conclusion: In-hospital mortality rate after hip fracture remains high; probably this being related to the high comorbidity associated with male sex and increased age as risk factors.
Fast, non-destructive measurement of roof-bolt loads
Authors: Skrzypkowski Krzysztof , Korzeniowski Waldemar , Zagórski Krzysztof , Dominik Ireneusz , Lalik Krzysztof 
Published: June 2019

Abstract
This paper discusses the pull-out laboratory tests and the monitoring of expansion-shell bolts with a length of 1.82 m. The bolts comprised the KE-3W expansion shell, a rod with a diameter of 0.0183 m and a profiled, circular plate with a diameter of 0.14 m, and a gauge of 0.006 m. The bolts were installed in a concrete block with a compressive strength of 75 MPa. The tests were conducted on a state-of-the-art test stand owned by the Department of Underground Mining of the AGH University of Science and Technology. The test stand can be used to test roof bolts on a geometric scale of 1:1 under static and rapidly varying loads. Also, the stand is suitable for testing rods measuring 5.5 m in length. The stand has a special feature of providing the ongoing monitoring of bolt load, displacement and deformation. The primary aim of the study was to compare the results recorded by two different measurement systems with the innovative Self-Excited Acoustic System (SAS) for measuring stress variations in roof bolts. In order to use the SAS, a special handle equipped with an accelerometer and exciter mounted to the nut or the upset end of the rod was designed at the Faculties of Mining and Geoengineering and Mechanical Engineering and Robotics of the AGH University of Science and Technology. The SAS can be used for nondestructive evaluation of performance of bolts around mining workings and in tunnels. Through laboratory calibration tests, roof bolt loads can be assessed using the in-situ non-destructive method.
Effects of Football Match Results of Croatian National Team on Stock Returns: Evidence from Zagreb Stock Exchange
Authors: Škrinjarić Tihana , Barišić Patrik 
Published: June 2019

Abstract
This paper observes short term effects of football match results by focusing on the Croatian national team and stock returns on the Zagreb Stock Exchange. Existing literature identifies psychological factors affecting investor’s sentiment around sporting events on different stock markets. There does not exist any study focusing on the Croatian stock market. Thus, this paper extensively observes such effects for the first time in the literature. Event study methodology, a usual approach of investigating such effects, is used on a sample of 60 stocks on the Zagreb Stock Exchange for the period from 2014 until the end of 2018. The results indicate no significant effects of winning or losing a football match, even when controlling for game being friendly, competitive tournament or qualification one; as well as after controlling for investor’s expectations based upon betting odds. This means that no profitable trading strategies could be obtained around the football match day on the Zagreb Stock Exchange in the observed period for the stocks investigated in this paper.
Is Currency Appreciation or Depreciation Expansionary in Kosovo?
Authors: Hsing Yu 
Published: June 2019

Abstract
Applying an extended IS-MP-AS model (Romer, 2000), this paper shows that real depreciation of the euro raises real GDP in Kosovo and that a lower real lending rate in the euro area, a higher real GDP in Germany, a lower real oil price, or a lower expected inflation rate would help increase real GDP. More government deficit spending as a percent of GDP does not affect real GDP.