bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of drop jump technique on the reactive strength index
Authors: Struzik Artur , Juras Grzegorz , Pietraszewski Bogdan , Rokita Andrzej
Published: September 2016

The basic drill of plyometric training aimed at improving lower limb power and jump height is a drop jump. This exercise can be performed using different techniques, which substantially affects jump variables. Therefore, the aim of this study was to compare the values of the reactive strength index (RSI) for countermovement drop jumps (CDJs) and bounce drop jumps (BDJs). The study was carried out in a group of 8 male youth basketball players. The tests were conducted using the AMTI BP600900 force plate to measure ground reaction forces and the Noraxon MyoMotion system to record kinematic data. Each player performed two CDJs and two BDJs from the height of 15, 30, 45 and 60 cm. The RSI was calculated as a ratio of jump height and contact time. Moreover, the RSI was determined for the amortization and take-off phases separately. Significant differences (p < 0.05) between RSI values for CDJs and BDJs were recorded for jumps from 30, 45 and 60 cm. Differences in RSI values for jumps from 15 cm were not significant. Furthermore, CDJ height values were significantly higher (p < 0.05) than the values recorded for BDJs. Times of contact, amortization and take-off during BDJs were significantly shorter (p < 0.05) than the respective values obtained for CDJs. Therefore, the use of the RSI to monitor plyometric training should be based on the drop jump technique that is commonly performed by basketball players.
More like him, me, or us: the impact of trait similarity on adolescent women’s sexual risk behaviors in relationships
Authors: Woods Jennifer L. , Hensel Devon J. , Fortenberry J. Dennis
Published: September 2016

Ideal partner traits and how they relate to a young woman’s current partner and relationship is a knowledge gap in the literature. The objectives of this study were 1) to assess any differences in interpersonal characteristics between a young woman or her partner and relationship and 2) to examine the impact of this difference on sexual monogamy, condom use and frequency of vaginal sex. Study participants (n=387, 14–17 years at enrollment, 90% African American) were recruited from three primary care adolescent health clinics serving areas with high rates of unintended pregnancy and sexually transmitted infection (STI); data were drawn from a longitudinal cohort study of sexual relationships and behaviors among young women. Nineteen interpersonal characteristics, including physical, financial, communication and personal characteristic variables, were found to have varying influences on relationships and sexual behaviors with ‘like him’ and ‘like us’ as referents. Monogamy increased as a male partner wanted to get somewhere in life [OR 5.41, (1.25, 23.52, p<0.05)], was intelligent [OR 3.42, (1.09, 10.76, p<0.05)] and had money [OR 1.55, (0.272, 0.595, p<0.001)] in a partnership; monogamy similarly increased when a partner wanted to get somewhere in life [OR 6.77, (1.51, 30.36, p<0.01)], was intelligent [OR 4.02, (1.23, 13.23, p<0.05)], and had money [OR 2.41, (1.51, 3.84, p<0.001)] compared to the young woman. The likelihood of using a condom at last sex increased when the male partner had a nice body [OR 1.42, (1.02, 1.99, p<0.05)], was popular [OR 1.60, (1.12, 2.29, p<0.01)], cared for others [OR 3.43, (1.32, 8.98, p<0.01)], was good at sports [OR 1.35, (1.06, 1.73, p<0.05)] and expressed his feelings [OR 2.03, (1.14, 3.60, p<0.01)]. The condom use ratio increased when the male partner was able to take care of himself [OR 0.076, (0.017, 0.136, p<0.01)], was cute [OR 0.190, (0.082, 0.30, p<0.001)], and had a nice body [OR 0.044, (0.001, 0.09, p<0.05)] in a dyad; the condom use ratio also increased when a male partner could take care of himself [OR 0.091, (0.014, 0.168, p<0.05)], was cute [OR 0.194, (0.077, 0.311, p<0.001)] compared to the young woman. Coital frequency increased when the male partner was described as being able to take care of himself [OR 3.33, (0.138, 6.52, p<0.05)]. Such influences are important in discussions with young women regarding personal and partner choices in sexual health as partners, behaviors and motivations for choice frequently change.
An Approach to Distributed Min-Max Model Predictive Control of Linear Systems with Parametric Uncertainty
Authors: Grancharova Alexandra , Olaru Sorin
Published: September 2016

In this paper, a suboptimal approach to distributed closed-loop min-max MPC for uncertain systems consisting of polytopic subsystems with coupled dynamics subject to both state and input constraints is proposed. The approach applies the dynamic dual decomposition method and reformulates the original centralized min-max MPC problem into a distributed optimization problem. The suggested approach is illustrated on a simulation example of an uncertain system consisting of two interconnected polytopic subsystems.
Simulation Studies of Distributed Two-phase Locking in Distributed Database Management Systems
Authors: Vasileva Svetlana , Milev Aleksandar
Published: September 2016

This paper considers algorithms simulating the implementation of distributed two-phase locking (2PL) protocols in distributed database systems and simulation results. It describes specifically the simulations of two-version 2PL and 2PL with integrated timestamp ordering mechanism. Integrated modelling algorithms for deadlock avoiding are suggested in the paper: twoversion architecture of database and timestamp ordering strategy “wait-die”. The results of the simulations of these two variants of the 2PL method at different scales of the networks for data transmission and at different intensities of inflow transactions are also presented. Modelling algorithms are developed by means of the system for simulation modelling GPSS World Personal Version.
Multiscale Spectral Methods for Data Indexing in a Radon Space
Authors: Petrov Miroslav
Published: September 2016

This paper presents three methods for multiscale indexing of the content of projection data of computed tomography images in the CBIR-systems for medical database search. The feature spaces in the developed algorithms have been created by means of, respectively: Discrete Stationary Wavelet Transform (DSWT), Shearlet Transform (ST) and Repagulum Wavelet Transform (RWT). A comparative analysis and assessment of the proposed algorithms have been carried out based on experimental studies with computed tomography images.
Inverse problem for nonlinear backward space-fractional diffusion equation
Authors: Dinh Nguyen Duy Hai , Nguyen Huy Tuan , Le Dinh Long , Quoc Thong Le Gia
Published: September 2016

In this paper, a backward diffusion problem for a space-fractional diffusion equation (SFDE) with nonlinear source in a strip is investigated. This problem is obtained from the classical diffusion equation by replacing the second-order space derivative with a Riesz–Feller derivative of order

γ
∈

(
0
,
2
]

{\gamma\in(0,2]}

. We show that such a problem is severely ill-posed and further propose a new modified regularization method to solve it based on the solution given by the Fourier method. Convergence estimates are presented under a priori bound assumptions for the exact solution. Our method improves some results of a previous paper, including the earlier paper [28] and some other papers. A general case of nonlinear terms for this problem is also considered.
Identification and diversity of Fusarium species isolated from tomato fruits
Authors: Murad Nur Baiti Abd , Kusai Nor Azizah , Zainudin Nur Ain Izzati Mohd
Published: September 2016

Fruit rot of tomato is a serious disease caused byFusariumspecies. Sampling was conducted throughout Selangor, Malaysia and fungal species identification was conducted based on morphological and gene encoding translation elongation factor 1-α (tef1-α) sequence analysis. Five species ofFusariumwere discovered namelyF. oxysporum(includingF. oxysporumf. sp.lycopersici),F. solani, F. equiseti, F. proliferatumandF. verticillioides. Our results provide additional information regarding the diversity ofFusariumspecies associated with fruit rot disease of tomato.
Evaluation of Streptomyces spp. against Fusarium oxysporum f. sp. ciceris for the management of chickpea wilt
Authors: Amini Jahanshir , Agapoor Zahra , Ashengroph Morahem
Published: September 2016

In this study, about 112 isolates ofStreptomyceswere isolated from chickpea rhizospheric soils. Among the isolated strains, five showed strong inhibitory effects against chickpea Fusarium wilt caused byFusarium oxysporumf. sp.ciceris in vitrousing plate assay and selected for further studies. The selected strains were identified asStreptomycesspp. based on morphological and biochemical characterization as well as 16S rDNA sequences analysis. Our results assigned them to strains related to genus ofStreptomyces.In vitro, antagonistic effects ofStreptomycesstrains against the disease were evaluated through the dual-culture method, volatile and non-volatile metabolites, siderophore, protease and chitinase production. All bacterial strains inhibited mycelial growth of the pathogen ranging from 26 to 44.2% in dual culture assay. The non-volatile extract of five of theStreptomycesstrains inhibited more than 50% growth of the pathogen, whereas volatile compounds were less effective on mycelial growth inhibition (20.2 to 33.4%). The ability of the biocontrol agents to produce siderophore and protease were varied, whereas, production of chitinase was detected for all strains. Results of the greenhouse assay indicated that all biocontrol agents reduced disease severity (ranging from 38.7 to 54.8%). Accordingly, strain KS62 showed higher control efficacy (54.8%). In addition, the biomass of chickpea plants (plant height and dry weight) significantly increased in plants treated withStreptomycesstrains compared to non-bacterized control. The results of this study showed that it may be possible to manage chickpea Fusarium wilt disease effectively by usingStreptomycesspecies, as biocontrol agents. Therefore, evaluating their efficiency under field conditions is needed.
Structural properties of hypothetical CeBa2Cu3O7 compound from LSDA+DMFT calculations
Authors: Łuszczek Maciej
Published: September 2016

The hypothetical stoichiometric CeBa2Cu3O7 (Ce123) compound, which has not been synthesized as a single phase yet, was studied by the density functional theory (DFT). We utilized a method which merges the local spin density approximation (LSDA) with the dynamical mean-field theory (DMFT) to account for the electronic correlations. The LSDA+DMFT calculations were performed in the high-temperature range. The particular emphasis was put on the pressure-induced changes in the electronic band structure related to strongly correlated 4f states. The computational results indicate the occurrence of a large negative volumetric thermal expansion coefficient near T = 500 K and a trace of a low-volume isostructural metastable state at high temperatures.
Crystal structure of poly-[triaqua-(μ3-3,4,5,6-tetrafluoro-1,2-phthalato-κ4
O:O′:O′′,O′′′) (2,3,4,5-tetrafluoro-benzoato-κ2
O,O′) praseodymium(III)], C15H7F8O9Pr
Authors: Feng Xun , Li Rong Fang , Wang Yang , Tian Pan Hao
Published: September 2016

C15H7F8O9Pr, monoclinic, P21/n (no. 14), a = 6.2167(3) Å, b = 9.7769(5) Å, c = 29.6562(15) Å, β = 93.2916(8)°, V = 1799.53 Å3, Z = 4, R
gt(F) = 0.0317, wR
ref(F
2) = 0.0729, T = 293(2) K.
Crystal structure of 4-(4-((3-bromophenyl)amino)-6-(tert-butyl)-3-(2-hydroxypropan-2-yl)cinnolin-8-yl)-2-methylbut-3-yn-2-ol, C26H30BrN3O2
Authors: Yuan Yue-Hua , Yin Qiang-Feng , Tian Mao-Zhong , Feng Feng
Published: September 2016

C26H30BrN3O2, triclinic, P1̅ (no. 2), a = 12.257(3) Å, b = 12.451(3) Å, c = 17.325(3) Å, α = 92.05(3)°, β = 107.04(3)°, γ = 93.96(3)°, V = 2517.5(10) Å3, Z = 4, R
gt(F) = 0.0722, wR
ref(F
2) = 0.1929, T = 173(2) K.
Crystal structure poly-(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazolyl-κ2
N
N
1:N
2
N)-(μ3-2,2′-(1,2-phenylene)diacetato-κ5-O
1,O
2:O
2:O
3,O
4)cadmium(II), C22H19CdN5O4
Authors: Xin Ling-Yun , Li Xiao-Ling , Liu Guang-Zhen
Published: September 2016

C22H19CdN5O4, monoclinic, P21/c, a = 11.7546(16) Å, b = 19.769(3) Å, c = 9.5012(13) Å, β = 106.252(2)°, V = 2119.6(5) Å3, Z = 4, R
gt(F) = 0.0348, wR
ref(F
2) = 0.0814, T = 296(2) K.
Understanding the Structural Complexity of Induced Travel Demand in Decision-Making: A System Dynamics Approach
Authors: Angarita-Zapata Juan S. , Parra-Valencia Jorge A. , Andrade-Sosa Hugo H.
Published: September 2016

Background and purpose: Induced travel demand (ITD) is a phenomenon where road construction increases vehicles’ kilometers traveled. It has been approached with econometric models that use elasticities as measure to estimate how much travel demand can be induced by new roads. However, there is a lack of “white-box” models with causal hypotheses that explain the structural complexity underlying this phenomenon. We propose a system dynamics model based on a feedback mechanism to explain structurally ITD.

Methodology: A system dynamics methodology was selected to model and simulate ITD. First, a causal loop diagram is proposed to describe the ITD structure in terms of feedback loops. Then a stock-flows diagram is formulated to allow computer simulation. Finally, simulations are run to show the quantitative temporal evolution of the model built.

Results: The simulation results show how new roads in the short term induce more kilometers traveled by vehicles already in use; meanwhile, in the medium-term, new traffic is generated. These new car drivers appear when better flow conditions coming from new roads increase attractiveness of car use. More cars added to vehicles already in use produce new traffic congestion, and high travel speeds provided by roads built are absorbed by ITD effects.

Conclusion: We concluded that approaching ITD with a systemic perspective allows for identifying leverage points that contribute to design comprehensive policies aimed to cope with ITD. In this sense, the model supports decision- making processes in urban contexts wherein it is still necessary for road construction to guarantee connectivity, such as the case of developing countries.
A Primary Human Critical Success Factors Model for the ERP System Implementation
Authors: Jenko Aleksander , Roblek Matjaž
Published: September 2016

Background and Purpose: Many researchers have investigated various Critical success factors (CSFs) and the different causes of ERP implementation project failures. Despite a detailed literature preview, we were unable to find an appropriate research with a comprehensive overview of the true causes behind CSFs, observed from a human factors perspective. The objective of this research was therefore to develop and evaluate the Primary human factors (PHFs) model and to confirm the significant impact of PHFs on traditional CSFs and on the project success.

Design/Methodology/Approach: The comprehensive PHFs research model was developed and examined in empirical quantitative research with the use of available literature and the application of the Root cause analysis. A survey was conducted in various Slovenian organisations in different branches that had previously implemented the ERP system SAP. The model was verified on a sample of 21 experts from 18 organisations.

Results: The results show that the PHFs have a significant positive impact on the ERP implementation project success, but only the Competence and Team composition factors are significant linear predictors in an adapted regression model and contribute significantly in predicting project success. These results therefore confirm both proposed hypotheses and the adapted regression model.

Conclusion: This study improves the understanding of PHFs and confirms that they have a significant impact on traditional CSFs and the ERP implementation project success. The proposed PHFs model offers project managers and other stakeholders an effective risk assessment of CSFs and is leading the way to human oriented model of ERP implementations.
An Empirical Study of the Relationship between Entrepreneurial Curiosity and Innovativeness
Authors: Peljko Žiga , Jeraj Mitja , Săvoiu Gheorghe , Marič Miha
Published: September 2016

Background and Purpose: Despite scholarly interest in understanding the role of different determinants on entrepreneurs and their behavior, little is known about the relationship between entrepreneurial curiosity and innovativeness. This research explores the relationship between entrepreneurial curiosity, which motivates entrepreneurs to gather information about their business and innovativeness that motivate entrepreneurs to incorporate innovations into entrepreneurial processes.

Design/Methodology/Approach: Participants in this study were entrepreneurs from Slovenia and USA. By using structural equation modelling, we linked the two constructs of entrepreneurial curiosity and innovativeness to test the influence.

Results: Results indicate that entrepreneurial curiosity positively influences innovativeness. The results of this study indicate that at the frame of entrepreneurship psychology entrepreneurial curiosity is important for innovativeness.

Conclusion: This paper links the two studied constructs and presents a valuable contribution for entrepreneurship theory; therefore, the results could be used for a further scientific research as also for practical implications.
Two Pole-Vaulters of Their Times: The Poetry of John Wilmot, Earl of Rochester, and Irving Layton
Authors: Sánchez Hernández Elena
Published: September 2016

This article compares the poetic output of the Anglo-Canadian writer Irving Layton with that of the famous Restoration rake and court poet John Wilmot, Earl of Rochester. Layton himself provided the connection in his wholehearted vindication of the seventeenth century as a time of “intellectual ferment”, “criticism and impatience for change”. Layton’s debt to Nietzsche and Rochester’s to his contemporary philosopher Hobbes, respectively, provide the thread through which a striking similarity of values and thematic concerns, of the quality of the amatory experience described; of their criticism of mankind, its institutions and even of themselves, on the one hand, and, on the other, of shared poetic formulas, sources of inspiration (classical, Elizabethan, satiric) and idiom string together in creative work that displays quite striking affinities, the product of similar vital stances.
Other Spaces of the Empire: A Colonial Hotel in J.G. Farrell’s Troubles
Authors: Parezanović Tijana
Published: September 2016

Focusing on the hotel imagery and, more precisely, the hotel Majestic featured in J.G. Farrell’s 1970 novel Troubles, this article provides a spatial contextualization of the historical downfall of the British Empire. In an attempt to establish the concept of the “colonial hotel”, this particular type of hotel is theorized as a fictional means of questioning the sustainability of the imperial project of colonialism. The theoretical framework for considerations of the Majestic in Troubles as a representative of the “colonial hotel” concept is based on Foucault’s heterotopology, as well as on the concepts of liminality and dislocation taken from postcolonial studies. Reading Troubles as an allegory of the Troubles in Ireland and, more broadly, a symptom of the disintegration of the British Empire, the article shows that the hotel, modelled after the historical concept of the Anglo-Irish big house, provides a proper setting where the deconstruction of the binary oppositions of colonial discourse can be played out. While the Majestic represents a mirror-image of the imperial centre, or rather a dislocated centre, its destruction is brought about by its tendency towards constancy and perpetuation of the illusion of grandeur. Similarly, the British Empire refuses to acknowledge the socio-political and historical changes of the early twentieth century and denies the existence of interstitial spaces between its firmly defined structures, whereby it inevitably meets its end.
Louise Erdrich’s Place in American Literature: Narrative Innovation in Love Medicine
Authors: Stock Richard
Published: September 2016

As a novelist, Louise Erdrich is unique in receiving both popular and critical acclaim. Strangely, her popular appeal has discouraged study of her novels as experimental narrative texts. This is unfortunate, since innovations in Erdrich’s novels rival much “experimental” contemporary American fiction. This study outlines a convention of a three-level hierarchy of characters in novels and compares this convention with two experimental American novels: Infinite Jest (1996) by David Foster Wallace and Gravity’s Rainbow (1973) by Thomas Pynchon. The study then addresses Erdrich’s first novel, Love Medicine (1984), to show that it is unique in not having a main character. Although the other two experimental novels try to do without a main character, neither of them succeed at getting beyond this convention. Love Medicine innovates in at least one major narrative convention in a way that other experimental novels cannot do. This is one way in which Louise Erdrich and Love Medicine compare favorably to some of the most respected experimental contemporary American novels. Erdrich’s novels should take their place alongside other experimental American novels, being studied in similar ways, regardless of whether they are also read by a broad public audience.
The effect of shear history on urea containing gliadin solutions
Authors: Janssens Ward , Goderis Bart , Van Puyvelde Peter
Published: September 2016

Currently, a substantial amount of research is devoted to gluten bioplastics. A promising processing route towards composites and films uses solutions of reduced gliadin. The addition of sufficient urea allows the preparation of highly concentrated gliadin solutions without an anomalous rheology. This is investigated in this paper by thixotropy experiments on gliadin solutions. These solutions show a balance between structural build-up due to molecular interactions and structural break-down induced by shear flow. Because of this, such protein solutions should be prepared with great caution. To assure a rheology suitable for processing, a shear history and a sufficient amount of added urea to disrupt molecular interactions are crucial.
Bidirectional chemotherapy in gastric cancer with peritoneal metastasis combining intravenous XELOX with intraperitoneal chemotherapy with low-dose cisplatin and Doxorubicin administered as a pressurized aerosol: an open-label, Phase-2 study (PIPAC-GA2)
Authors: Khomyakov Vladimir , Ryabov Andrey , Ivanov Andrey , Bolotina Larisa , Utkina Anna , Volchenko Nadezhda , Kaprin Andrey
Published: September 2016

Background

Peritoneal metastasis (PM) develop in more than 50 % of gastric cancer (GC) patients. Median survival without treatment is not more than 3–7 months, and 8–12 months after modern combination chemotherapy. Innovative therapeutic approaches are urgently needed.

Methods

Phase-2, open label prospective clinical trial assessing safety and efficacy of bidirectional chemotherapy for treating peritoneal metastasis of gastric cancer (PMGC). Treatment protocol included initial staging laparoscopy or laparotomy, 3–4 courses of systemic chemotherapy (XELOX) followed by Pressurized IntraPeritoneal Aerosol Chemotherapy (PIPAC) procedures every 6 weeks until progression of disease or death. Primary endpoints were overall survival and histological peritoneal regression grading score after rebiopsy.

Results

31 patients were included (9 men, 22 women, mean age 52 years), 24 with synchronous PM at diagnosis, 7 with metachronous PM after previous chemotherapy. Mean PCI was 13.8 (min-max 6–34). XELOX was administered in all patients and combined with 56 PIPAC procedures. Complete and partial pathological response was found in 60 % of the 15 patients eligible for tumor response assessment (4 and 5 patients, respectively). Median survival was 13 months.

Conclusions

Bidirectional chemotherapy combining XELOX with PIPAC with cisplatin and doxororubicin is well tolerated, can induce objective tumor regression and is associated with a promising survival in PMGC.
Direct and remote evaluation of effectiveness of health resort therapy on people with discopathy of the lumbar spine
Authors: Puszczałowska-Lizis Ewa , Zwiercan Iwona
Published: September 2016

Introduction:Lower back afflictions are a challenge for contemporary physiotherapy, both in preventive treatment and streamline proceedings. The aim of this study was to evaluate effectiveness of a complex program of health resort therapeutics in soothing pain and reducing functional limitations in people with discopathy of the lumbar spine.

Material and methods: 360 people aged 50-60 with discopathy of the lumbar spine, including 180 boarders of a Health Resort “Piast” in Iwonicz-Zdrój (experimental group) and 180 ambulatory patients of the Non-public Healthcare Centre REH-MED in Jasło (control group) were surveyed three times. The research tool was a Numeric Rating Scale of pain intensity (NRS) and Roland-Morris Disability Questionnaire (RMDQ). Anova Friedman test, Wilcoxon signed-rank test and Mann-Whithey U test were used for analyses.

Results: Before the beginning of therapy intensity of pain and functional condition of people qualified for particular groups was similar (p=0.848, p=0.872). Decline of intensity of pain took place by the action of therapy, both in case of patients from the experimental group (p=0.000), as well as the control group (p=0.001). Within 3 months from the completion of streamlining, intensity of pain of patients from the experimental group was gradually lowering, and in the control group it increased. Statistically significant differences in results after 3 months from the completion of therapy between the groups were stated (p=0.000). Just after treatment and 3 months later health resort patients had better functional ability (p=0.011, p=0.006).

Conclusions: Complex proceedings in health resort therapeutics in comparison to ambulatory therapy bring more permanent results in the soothing pain and reduction of functional limitations resulting from lumbar degenerative disc disorder.
The role of physiotherapy in terminal care
Authors: Sławomir Przewłocki , Aleksander Ronikier
Published: September 2016

Introduction: Terminal patients require proper care standards and professional team of doctors, physiotherapists, social workers, educators, psychologists and clergy directly involved in mitigating the suffering of a dying person. A physiotherapist as a member of such a team should be focused on sustaining the patient’s quality of life until the end at the level relevant to the patient’s health state. This quality of life should be perceived integrally as a combination of procedures reducing pain and physical suffering as well as improving physical fitness and mental well-being.

Material and methods:The aim of the research was to define the role of physiotherapy in assessing mental and physical state of terminal patients; to determine the applicability of ADLs, GDS and BDI in diagnosing the validity and usefulness of tiresome physiotherapeutic procedures for terminal patients and to assess the applied tests in predicting terminal patients’ survival time. The research was carried out on the turn of 2012 and 2013 in the group of 103 subjects (74 females - 71.8% and 29 males - 28.2%) For the research the following methods were used:

- Activity of Daily Living scale (ADL)-

- Beck Depression Inventory (BDI)

- Geriatric Depression Scale (GDS)

- Questionnaire regarding their willingness to participate in physiotherapeutic procedures.

Results: In the research the range of diagnostic possibilities of the applied scales and tests, correlations between theses scales and tests as well as correlations between them and subjects’ age and survival time were assessed. Additionally, a questionnaire survey was carried out which assessed the willingness to participate in physiotherapeutic procedures. Strong stress, terminal state of the patient and generalisation of symptoms brought about the fact that only 14.6% of patients declared their willingness to participate in physiotherapeutic procedures.

Conclusions:

1. Implementing physiotherapeutic and psychological diagnostic tests in everyday terminal care makes it easier to assess survival time of terminal patients and significantly improves their life and dying with dignity

2. Proper understanding of the symptoms of dying must serve as a basis for organising adequate activities compliant with the progress of a disease of a terminal patient without disturbing the process of dying.

3. Modern physiotherapy in terminal care should limit the range of physiotherapeutic procedures and physical therapy while increasing psychological care in this population.
Separation and characterization of environmental nano- and submicron particles
Authors: Ermolin Mikhail S. , Fedotov Petr S.
Published: September 2016

The investigation of environmental nano- and submicron particles is needed for the assessment of their impact on the environment and human health as well as for understanding various natural and anthropogenic processes. Nano- and submicron particles have an increased mobility, may serve as a “carrier” for toxic and nutrient substances, and hence are of particular interest. So far, there is a lack of knowledge about source, behavior, fate, and toxicity of environmental nano- and submicron particles. This article is focused on the separation and characterization methods, which are currently used for their investigation. The application of sedimentation, centrifugation, membrane filtration, and field- and flow-based techniques to the separation of nano- and submicron particles are discussed. The advantages and limitations of the techniques are briefly summarized. Among characterization/analysis methods, a special attention is given to electron microscopy, light scattering as well as atomic absorption spectroscopy, optical emission, and mass spectrometry.
An automated portable multiaxial pressure test rig for qualifications of glass/epoxy composite pipes
Authors: Krishnan Pranesh , Abdul Majid M.S. , Yi Ang Jia , Afendi M. , Yaacob S. , Gibson A.G.
Published: September 2016

An automated multiaxial cyclic loading pressure testing rig was developed as an alternative to the existing short-term test procedure specified by ISO 14692 and ASTM D2992. Conventionally, 14 months are required to estimate the residual properties at the end of expected life (20–50 years). The test periods and costs associated with this long-term test are high. To resolve this, a novel rig was developed based on the ultimate elastic wall stress (UEWS) algorithm, allowing five multiaxial stress ratios to be tested. The test involved the cyclic pressurizing of the pipe with 1-min of pressure and 1-min of zero pressure. The test rig was tested under five stress ratios using glass-epoxy composite pipes with winding angles of [±45°]4, [±55°]4 and [±63°]4. The rig is capable of testing both static and cyclic pressure loading, thereby reducing the test period and related costs. The results provide a more realistic failure envelope.
Friction-stir welding of aluminum alloy with an iron-based metal as reinforcing material
Authors: Huang Her-Yueh , Kuo Iang-Chuen , Zhang Chia-Wei
Published: September 2016

The fabrication of a durable and usable aluminum matrix composite poses a challenge because it is hard to obtain defect-free welds by using conventional fusion welding methods. The development of friction-stir welding (FSW) provides improved microstructure modification. As there are no melting problems associated with it, liquid-solid reactions are eliminated. The objective of this study was to attempt FSW of an AA6061 alloy reinforced with an iron-based metal and to determine the properties of the joints. The effects of FSW parameters, especially the tool rotation speed, are presented first. Then, the application of the technique in manufacturing and microstructure modification of particle-reinforced composite materials is discussed. Finally, interfacial microstructural changes and the associated mechanical properties are evaluated.
Growth mechanism of 3D graphene-carbon nanotube hybrid structure
Authors: Saeidi Mohammadreza
Published: September 2016

In this paper, a novel molecular dynamic model is presented to describe the growth mechanism of three-dimensional (3D) graphene-carbon nanotube (G-CNT) hybrid structure synthesized by catalytic chemical vapor deposition. For this purpose, first, the physisorption of a carbon atom on a graphene sheet (GS) is studied. Then the model is formulated by using kinetic theory and the longitudinal phonon oscillation of adsorbed carbon atoms on GS. Results show that the CNT grows on GS up to 0.3 mm. Also, there is an optimum temperature for growth of the 3D G-CNT hybrid structure, which can be calculated by the presented model. Finally, it is shown that increase of partial pressure leads to increase of length of growing CNT on GS.
Adsorption removal of methylene blue from aqueous solution on carbon-coated Fe3O4 microspheres functionalized with chloroacetic acid
Authors: Zhang Zefei , Kim Cholhwan , Fernandez Carlos , Sundaram Manickam Minakshi , Ramakrishnappa Thippeswamy , Wang Yuhong , Wang Linshan , Sun Ting , Hu Xiaomin
Published: September 2016

We report the preparation and employability of carbon-coated Fe3O4 (Fe3O4/C) microspheres functionalized with chloroacetic acid (CAA) for the removal of methylene blue (MB) in aqueous solution. The prepared magnetic microspheres (Fe3O4/C-CAA) were characterized by the following techniques: X-ray diffraction, transmission electron microscopy, Fourier-transform infrared spectrometer, vibrating sample magnetometry, and Brunauer-Emmett-Teller. The characterization results showed that Fe3O4/C microspheres were modified by CAA without any phase change. Fe3O4/C-CAA microspheres have higher adsorption capacity for MB compared to Fe3O4/C microspheres. The Langmuir, Freundlich, and Temkin adsorption models were applied to describe the equilibrium isotherms, and the Langmuir adsorption model fitted well with the equilibrium data. The pseudo-first-order and pseudo-second-order kinetic models were used to describe the kinetics data. However, the pseudo-second-order kinetic model fitted better with the adsorption kinetics data.
Nicephorus Blemmydes on the Holy Trinity and the Paraconsistent Notion of Numbers: A Logical Analysis of a Byzantine Approach to the Filioque
Authors: Lourié Basil
Published: September 2016

The paper deals with the most controversial - in the modern scholarly discussion - episode within the Byzantine polemics on the Filioque, Nicephorus Blemmydes‘ acknowledgement of proceeding of the Spirit through the Son providing that the Son be considered as generated through the Spirit. The logical intuition behind this theological idea is explicated in the terms of paraconsistent logic and especially of a kind of paraconsistent numbers called by the author “pseudo-natural numbers”. Such numbers could not be interpreted via the notion of ordered pair. Instead, they imply a known (first described by Emil Post in 1941) but still little studied logical connective ternary exclusive OR.
Substitution disorder and photoluminescent property of a new rare-earth borate: K3TbB6O12
Authors: Zhao Dan , Ma Fa-Xue , Zhang Rui-Juan , Huang Min , Chen Peng-Fei , Zhang Rong-Hua , Wei Wei
Published: September 2016

A new rare-earth borate K3TbB6O12 has been prepared using the high temperature molten salt method and was structurally determined by single crystal X-ray diffraction analyses. The structure features a three-dimensional (3D) framework which is composed of isolated B5O10, KO6, KO8 and TbO6 groups. An atom site in the 32 screw axis is shared by K and Tb atoms with the molar ratio of 1:1. The self-activated photoluminescence (PL) property of K3TbB6O12 was studied. Under the excitation of 378 nm, the emission spectrum exhibits an intense green emission centered at 543–548 nm with the chromaticity coordinates (0.342, 0.590), which can be assigned to the 5D4→7F5 transition of Tb3+. The excitation spectra cover a wide range from 330 to 385 nm, which suggests that the K3TbB6O12 phosphors can be effectively excited by a near-UV light source. One may expect that compound K3TbB6O12 can be used as a green phosphor pumped by near-UV LED chips.
Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: 14th Volume
Authors: Davis Samuel Edgar , Steinberg Theodore A.
Published: September 2016

Description

Get 24 papers sponsored by ASTM Committee G04 on Compatibility and Sensitivity of Materials in Oxygen Enriched Atmospheres.

The objectives of the papers are as follows
Comparison of Combustion Products of Bulk Aluminum Rods Burning in High Pressure Oxygen in Normal and Reduced Gravity
Authors: Plagens Owen , Steinberg Theodore A.
Published: September 2016

The burning of materials in reduced gravity has been shown to differ in many ways from burning reactions in normal gravity. In this paper, the characterization of combustion products formed from the burning of aluminum rods in high pressure oxygen was investigated in normal and reduced gravity regimes. This characterization is limited to the particle size distribution and the morphology of particles formed during the reaction because these parameters can be useful for fire prevention, fire detection, and fire suppression systems. Pressures of 200 psi (1.38 MPa) and 800 psi (5.52 MPa) were used in this study. Particle size distributions were found to be wider and to have a higher mean particle size in normal gravity and under lower pressures. Particles were spherical and were categorized by diameter and outer surface morphology. Scanning electron microscopy was used to analyze collected particles.
Investigation of a Fire in a Liquid Oxygen Bulk Delivery Tank
Authors: Newton Barry E. , Schumacher John
Published: September 2016

This paper presents a case study of the forensic analysis of a fire that originated in the annulus space between the inner and outer shells of a liquid oxygen bulk delivery tank that was permanently mounted inside a home health-care delivery van. The fire occurred while a dispensing facility employee was preparing to fill the tank with liquid oxygen. The fire energetically erupted from the annulus space, burning the individual and damaging the tank and van. During the fire, the inner vessel collapsed and the aluminum superinsulation between the inner and outer vessels was consumed. This paper discusses the layout of the liquid oxygen dispensing facility and bulk delivery tank, and it describes the fire's propagation and the causation theory that was developed during the investigation. Also discussed are the properties of liquid oxygen crucial to the fire's development, the typical procedure followed to fill the liquid oxygen tank, the timeline of events leading up to the fire, and the ultimate conclusions reached by these authors.
Properties of ToughMet® 3 Copper-Nickel-Tin Alloy for Oxygen Enriched Atmosphere Applications
Authors: Samant Anand V. , Gedeon Michael J. , Kusner Robert E. , Finkbeiner Chad A. , Grensing Fritz C. , Cribb W. Raymond
Published: September 2016

ToughMet® 3, a high-performance copper-nickel-tin alloy, provides many advantages in demanding end-use applications ranging from aerospace sleeve and spherical bearings to oil and gas drilling components to industrial bearings such as heavy equipment wear plates or transmission thrust washers. ToughMet® 3 is spinodally hardened for high strength and hardness. It is designed to resist mechanical wear, galling, stress relaxation, corrosion, and erosion. It is nonmagnetic and easy to machine into complex components. In this paper, the mechanical properties and promoted ignition combustion behavior of ToughMet® 3, which make it ideally suited for applications in high-pressure oxygen enriched atmospheres, are discussed.
Promoted Ignition-Combustion Tests of Brazed Aluminum Heat Exchanger Samples in Cold Supercritical Oxygen
Authors: McNamara Thomas A. , Million Joseph F. , Pahade Ravi , White James
Published: September 2016

A common practice in the industrial gas industry is to produce product oxygen by boiling pressurized liquid oxygen in a heat exchanger. Multistream brazed aluminum heat exchangers (BAHX) typically are used as oxygen product vaporizers. This method inherently exposes liquid and gaseous oxygen to aluminum material. Customer demands continue to increase the product oxygen pressure requirements, and it is recognized that higher pressures could increase the severity of an aluminum/oxygen combustion event. A series of experimental programs were conducted from 1993 to 1995 to evaluate the safe use of BAHX for boiling oxygen at elevated pressures to 6,996 kPa. The present experimental study is a companion test program that was conducted from 2010 to 2012 to evaluate BAHX promoted combustion response in cold supercritical oxygen to 15,602 kPa. Promoted combustion experiments were conducted with miniature headered BAHX samples. Two types of samples were tested. The first were approximately 3.3 kg, having a thinner parting sheet thickness, and the second approximately 3.9 kg, having thicker parting sheets. The oxygen passages contained commercial purity cold supercritical oxygen having a pressure ranging from 10,197 to 15,603 kPa and the adjacent passages contained cold supercritical air (“inert” fluid) at pressures ranging from 10,440 to 15,170 kPa. Tests were conducted with the air passage pressure both higher and lower than the oxygen passage pressure. Nichrome wire was used to ignite a hydrocarbon promoter located within an oxygen passage, simulating a promoted ignition-combustion event. The experiments provided insights into the combustion mitigation behavior of BAHX used for producing high-pressure product oxygen via pumped liquid oxygen (LOX) gasification. Data are applicable in supporting the safe use of BAHX for high-pressure oxygen service.
Failure Analysis of a Liquid Oxygen Gate Valve Fire
Authors: Chiffoleau Gwenael J. A. , Forsyth Elliot T. , Newton Barry E.
Published: September 2016

The failure analysis of a fire-damaged liquid oxygen gate valve is presented. During start-up operations of a liquid oxygen system, a gate isolation valve experienced an internal ignition that propagated in the valve and breached the extended bonnet under pressure. The resulting fire led to the fatality of two operators. The gate valve was part of a double block with bypass valve configuration, and constructed of stainless steel alloys, a polychlorotrifluoroethylene (PCTFE) bearing and a polytetrafluoroethylene (PTFE)/graphite composite packing. Based on fire patterns, the most probable origin was identified proximate to the bearing location. This was further supported by 13 other similar valves in the same plant demonstrating non-propagating ignitions proximate to their bearings. These bearings, along with unburned exemplars, exhibited contaminants consistent with silicone oil and hydrocarbons. The incident valve remains also exhibited evidence of these contaminants. The gate valve pressure was determined to be between 30 and 60 bar (435–870 psig). Although the exact conditions and operations proximate to the valve at the time of the incident were indeterminable, the most probable ignition mechanism identified was repetitive (vibrational) mechanical impact loading on the oil contaminants and bearing at the bearing location. This paper summarizes the failure analysis and presents contributing factors and recommendations based on findings.
Stainless Steel Plug Valve Incident in High Pressure Oxygen: Delrin® Seat and Silicone-Based Lubricant
Authors: Hooser Jared D. , Forsyth Bradley S. , Chiffoleau Gwenael J. A. , Newton Barry E.
Published: September 2016

A fire occurred in a stainless steel plug valve after completing a high pressure oxygen filling operation. The incident plug valve was being used to manually limit pressurization rates to downstream oxygen cylinders up to 20.7 MPa (3,000 psi). Fire developed within the plug valve when the filling operation was being completed (valve closing) and proceeded to burn out a downstream flexhose. Following the incident, it was determined that the plug valve had a Delrin® (acetal) seat and silicone-based lubrication. An insightful observation from the incident was that the relatively large Delrin® seat combined with the silicone-based lubrication did not kindle the stainless steel body or valve plug. This paper describes the incident and provides a summary of observations and discussion regarding this oxygen fire.
Auto Ignition Temperature Test Chamber Fire Investigation
Authors: Tylka Jonathan M. , Gallus Timothy D.
Published: September 2016

During routine auto ignition temperature (AIT) testing of a solvent at the NASA White Sands Test Facility (WSTF), a fire breached the test system. The sample being tested was 99 % dodecane (C12). It was exposed to a test atmosphere of 15.7 MPa gas, meeting aviator’s breathing oxygen (ABO) specifications (≥99.5 % O2). During testing, a metal fire occurred, resulting in multiple breaches of the test system. During the event, the chamber pressure transducer mechanically burst, indicating a pressure increase of at least 159 MPa/s. This fire represented the first AIT system breach in 30 years of testing at WSTF. An investigation was undertaken to determine the cause of the breach and to propose countermeasures to prevent future mishaps. A proposed ignition scenario is presented along with an approach for preventing future incidents.
Shotpeening Effects and Specifications
Authors: Fuchs H. O.
Published: September 2016

This paper briefly reviews the applications of shotpeening for strengthening and for forming metals. Current methods of specification are reviewed and analyzed. An extension of these methods is proposed to obtain “ equivalent intensities” which correlate the several variables and provide more flexibility in applying the treatment. Adoption of equivalent intensities would avoid delays in the production of shotpeened parts made of various materials.
A Baby-Led Approach to Eating Solids and Risk of Choking
Authors: Fangupo Louise J. , Heath Anne-Louise M. , Williams Sheila M. , Erickson Williams Liz W. , Morison Brittany J. , Fleming Elizabeth A. , Taylor Barry J. , Wheeler Benjamin J. , Taylor Rachael W.
Published: September 2016

OBJECTIVE:

To determine the impact of a baby-led approach to complementary feeding on infant choking and gagging.

METHODS:

Randomized controlled trial in 206 healthy infants allocated to control (usual care) or Baby-Led Introduction to SolidS (BLISS; 8 contacts from antenatal to 9 months providing resources and support). BLISS is a form of baby-led weaning (ie, infants feed themselves all their food from the beginning of complementary feeding) modified to address concerns about choking risk. Frequencies of choking and gagging were collected by questionnaire (at 6, 7, 8, 9, 12 months) and daily calendar (at 6 and 8 months); 3-day weighed diet records measured exposure to foods posing a choking risk (at 7 and 12 months).

RESULTS:

A total of 35% of infants choked at least once between 6 and 8 months of age, and there were no significant group differences in the number of choking events at any time (all Ps > .20). BLISS infants gagged more frequently at 6 months (relative risk [RR] 1.56; 95% confidence interval [CI], 1.13–2.17), but less frequently at 8 months (RR 0.60; 95% CI, 0.42–0.87), than control infants. At 7 and 12 months, 52% and 94% of infants were offered food posing a choking risk during the 3-day record, with no significant differences between groups (7 months: RR 1.12; 95% CI, 0.79–1.59; 12 months: RR 0.94; 95% CI, 0.83–1.07).

CONCLUSIONS:

Infants following a baby-led approach to feeding that includes advice on minimizing choking risk do not appear more likely to choke than infants following more traditional feeding practices. However, the large number of children in both groups offered foods that pose a choking risk is concerning.