Subjects -> CHEMISTRY (Total: 928 journals)
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PHYSICAL CHEMISTRY (65 journals)

Showing 1 - 64 of 64 Journals sorted alphabetically
ACS Central Science     Open Access   (Followers: 9)
ACS Physical Chemistry Au     Open Access   (Followers: 7)
ACS Sensors     Hybrid Journal   (Followers: 7)
Acta Physico-Chimica Sinica     Free  
Advances in Image and Video Processing     Open Access   (Followers: 20)
Advances in Physical Chemistry     Open Access   (Followers: 13)
Annual Review of Physical Chemistry     Full-text available via subscription   (Followers: 14)
Applied Materials Today     Hybrid Journal   (Followers: 1)
Biophysical Chemistry     Hybrid Journal   (Followers: 8)
Catalysis, Structure & Reactivity     Open Access   (Followers: 2)
Chemical Physics     Hybrid Journal   (Followers: 18)
Chemical Physics Letters     Hybrid Journal   (Followers: 17)
Chemistry and Physics of Lipids     Hybrid Journal   (Followers: 2)
Chinese Journal of Chemical Physics     Hybrid Journal   (Followers: 1)
Colloids and Surfaces A: Physicochemical and Engineering Aspects     Hybrid Journal   (Followers: 6)
Current Physical Chemistry     Hybrid Journal   (Followers: 1)
Doklady Physical Chemistry     Hybrid Journal  
EPJ B - Condensed Matter and Complex Systems     Hybrid Journal   (Followers: 1)
EPJ E - Soft Matter and Biological Physics     Hybrid Journal   (Followers: 3)
Friction     Open Access   (Followers: 4)
Geochemistry, Geophysics, Geosystems     Full-text available via subscription   (Followers: 35)
Glass Physics and Chemistry     Hybrid Journal   (Followers: 1)
Handbook on the Physics and Chemistry of Rare Earths     Full-text available via subscription   (Followers: 2)
Indian Journal of Biochemistry and Biophysics (IJBB)     Open Access   (Followers: 3)
Indian Journal of Chemistry - Section A     Open Access   (Followers: 9)
International Journal of Polymeric Materials     Hybrid Journal   (Followers: 6)
International Journal of Quantum Chemistry     Hybrid Journal   (Followers: 5)
International Reviews in Physical Chemistry     Hybrid Journal   (Followers: 3)
Journal of Biophysical Chemistry     Open Access   (Followers: 3)
Journal of Chemical Physics     Hybrid Journal   (Followers: 36)
Journal of Chromatographic Science     Hybrid Journal   (Followers: 15)
Journal of Macromolecular Science, Part B: Physics     Hybrid Journal   (Followers: 2)
Journal of Physical and Chemical Reference Data     Hybrid Journal   (Followers: 4)
Journal of Physical Chemistry A     Hybrid Journal   (Followers: 28)
Journal of Physical Chemistry B     Hybrid Journal   (Followers: 48)
Journal of Physical Chemistry C     Hybrid Journal   (Followers: 36)
Journal of Physical Chemistry Letters     Hybrid Journal   (Followers: 26)
Journal of Physics and Chemistry of Solids     Hybrid Journal   (Followers: 3)
Journal of Quantum Chemistry     Open Access   (Followers: 1)
Journal of Radiation Research     Open Access   (Followers: 3)
Macromolecular Chemistry and Physics     Hybrid Journal   (Followers: 2)
Molecular Physics: An International Journal in the Field of Chemical Physics     Hybrid Journal   (Followers: 24)
Nature Communications     Open Access   (Followers: 323)
Open Journal of Physical Chemistry     Open Access  
Physical Chemistry     Open Access   (Followers: 2)
Physical Chemistry Chemical Physics     Hybrid Journal   (Followers: 29)
Physical Chemistry Research     Open Access   (Followers: 1)
Physical Review A     Full-text available via subscription   (Followers: 23)
Physical Review Accelerators and Beams     Open Access   (Followers: 3)
Physical Review B     Full-text available via subscription   (Followers: 33)
Physical Review D     Full-text available via subscription   (Followers: 11)
Physical Review E     Full-text available via subscription   (Followers: 41)
Physical Review Letters     Full-text available via subscription   (Followers: 133)
Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B     Full-text available via subscription  
Physics and Chemistry of Liquids: An International Journal     Hybrid Journal  
Physics and Chemistry of the Earth, Parts A/B/C     Hybrid Journal   (Followers: 10)
Plasma Processes and Polymers     Hybrid Journal   (Followers: 2)
Protection of Metals and Physical Chemistry of Surfaces     Hybrid Journal   (Followers: 15)
Revista Fuentes     Open Access  
Russian Journal of Physical Chemistry A, Focus on Chemistry     Hybrid Journal  
Russian Journal of Physical Chemistry B, Focus on Physics     Hybrid Journal  
Solid State Ionics     Hybrid Journal   (Followers: 5)
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics     Hybrid Journal   (Followers: 29)
The European Physical Journal Special Topics     Hybrid Journal   (Followers: 1)
Similar Journals
Journal Cover
Advances in Image and Video Processing
Number of Followers: 20  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2054-7412
Published by Society for Science and Education Homepage  [4 journals]
  • Analyzing Nematic to Isotropic (N-I) Phase Transition of nCB Liquid
           Crystals Using Logger Pro

    • Authors: Medaelle Seide; Mathew C. Doran, Dipti Sharma
      Abstract: This paper reports detailed analysis of Nematic to Isotropic (N-I) phase transition of n-Cyanobiphenyl (nCB) Liquid Crystals (LC) using Logger Pro. Three bulk samples of nCB liquid crystal family, 4-Pentyl-4'-cyanobiphenyl (5CB), 4-Hexyl-4'-cyanobiphenyl (6CB), and 4-Heptyl-4'-cyanobiphenyl (7CB) were processed through the Differential Scanning Calorimetry (DSC) instrument for heating and cooling scans. The DSC data is then analyzed using Logger Pro. Logger Pro is a data analysis tool used to collect and analyze data in educational institutes. Our interest is to use Logger Pro in the research area to analyze DSC data of these LCs to get detailed results of N-I phase transition. Logger pro has been proven to be a good data analysis tool to find results in detail for these LCs in this paper. It is found that as nCB gets heavier and its C-C tail gets larger, the N-I phase transition shifts towards higher temperature in heating and shows an increase in enthalpy, wings jump, molecular mobility and molecular disorder.
      PubDate: Tue, 24 May 2022 00:00:00 +000
       
  • “Can Temperature and Pressure Change the Elasticity and Hooke’s Beyond
           Limit of Rubber Bands'”

    • Authors: Om Sharma; Dipti Sharma
      Abstract: In this report, a scientific research project is presented that is done for 2022 Massachusetts State Science Fair (MSEF) on rubber bands. This research work shows how the effect of temperature and pressure can change elasticity of the rubber bands those are found at home and used in everyday life. This work is done during COVID 19 time and shows how hands on activities can be performed to continue research work at home or in limited resources when it is not possible to go out very frequently. It is found after experimentation that rubber bands show more flexibility with lower spring constant and stop obeying Hooke’s Law on lower values of force applied to them under conditions of high pressure and temperature.
      PubDate: Tue, 24 May 2022 00:00:00 +000
       
  • Basic Principle of Simulation for Texture Formation of Both
           Face-Centered-Cubic Metals and Body-Centered-Cubic Ones Based on
           Rotational Symmetry

    • Authors: Hiroaki Masui
      Abstract: The principal axes of X[100], Y[010] and Z[001] are perpendicular to each other as the three orbits of and  by a rotational symmetry of mathematical group theory in such way that component X is not related to Y or Z one another whichever. There is a conservation quantity in the symmetry i.e. the minimum total slip amount, M value in crystal by Taylor. Firstly, a method using a coincidence relation between those of direction cosine and synthesis of slip systems, and the strain tensor  d  in crystal lattice coordinates of X([100])-Y([010])-Z([001]) has been applied to seek eight slips dX1,dY1,dX2,dY2,dX3,dY3,dX4,dY4 which are essential for fcc and bcc.  From the eight slips, in fcc metal, orientation at onset(minimum) of M value shows the cube {100}<001> and M value increases{100}<001> →{100}<016>→{100}<013>→{100}<012>→ {100}<023>→ {100}<0,9,11> named the cluster composed of cube and cube-family in fcc metal. In bcc metal, an intersection of two kinds of  planes from the three ones composed of ,  and  is chosen, and by the rotational symmetry of the principal axes of X[100], Y[010] and Z[001], 72 possible combinations of the five slips on planes based on Taylor’s formidable restriction rule of the five slips are calculated and this simulates properly lengthy of accumulated researcher’s experimental results such as the three stable orientations of bcc metal in rolling    and  
      PubDate: Tue, 24 May 2022 00:00:00 +000
       
  • An An Association Between Administrative Factors and Mortality in
           ST-Segment Elevation Myocardial Infarction Patients of Hospitals in
           Thailand

    • Authors: Kitigon Vichairuangthum
      Abstract: This descriptive study aimed to study an association between the level of readiness of administrative factors and the mortality rate of patients with acute ischemic heart disease of hospitals in Thailand, Target population were 1,180 hospitals that serving heart disease in Thailand. Data were collected by using a questionnaire. A total of 1,022 response data were obtained. Administrative factors were analyzed using descriptive statistics and correlation was analyzed by multiple regression analysis (MRA) methods.               The results showed that the administrative factors which consisted of personnel, finance, supporting, and management factors had overall average readiness at a high level (x̄ = 3.34, S.D. = 0.27). Except budget sufficiency was at a low level (x̄ = 2.43, S.D. = 0.43). All factors were significantly related to the mortality rate, as follows: management factor (Adjusted R2 = 0.433), personnel factor (Adjusted R2 = 0.231), supporting factor (Adjusted R2 = 0.092) and financial factor (Adjusted R2 = 0.035). Therefore, Thai Ministry of Public Health should provide adequate support for administrative factors especially in terms of management, personnel, and budget sufficiency.
      PubDate: Tue, 24 May 2022 00:00:00 +000
       
  • Forest-Limit (Betula Pubescens Ssp. Czerepanovii) Performance in the
           Context of Gentle Modern Climate Warming

    • Authors: Leif Kullman
      Abstract: In the context of post-Little Ice Age climate change, regional forest-limit (strictly defined) adjustment was studied over the period 1915 to 1975. The study comprised nearly 200 sites, in the form of systematically distributed belt transects. Forest-limit positions (m a.s.l.) were reconstructed for the years around 1915 and compared to the situation about 1975. During that interval, summer temperatures (June-August) increased by 1.2 °C. Concurrently, elevational upshifts were ubiquitous, site specific and rather modest; c. 17 altitudinal meter rise over a period of about 60 years. This is far less than expected for the climate change alone and indicates a pronounced disequilibrium situation. In comparison, the treeline in the same area, i.e. the uppermost > 2 m tall birches, advanced by average c. 35 m. Thus, it appears that the treeline is a more sensitive biomonitor than the forest-limit. Therefore, the forest-limit should be primarily focused in the context of environmental monitoring. Given that the current relatively warm climate phase continues, the subalpine birch forest belt may eventually recede and give way to a subalpine pine belt. The obtained modest forest-limit advancement is so small that flourishing model simulations of extensive birch forest expansion over most of the current alpine tundra, appear as large and unfounded exaggerations. The alpine tundra of the Scandes, with its characteristic biodiversity, is likely to prevail for a foreseeable future.
      PubDate: Tue, 24 May 2022 00:00:00 +000
       
  • Nursing Staff’s Experiences of Learning Palliative Care through
           Simulation Coaching

    • Authors: Mari Salminen-Tuomaala
      Abstract:                       ABSTRACT The need to develop palliative care has been recognised in both the public and private sector. This qualitative study is based on self-assessed learning needs of staff in private elderly care and nursing services. This is a sub-study of a large research and development project, carried out in private care and welfare industries in one region of Finland in the years 2017-2019. The study describes nursing staff’s experiences of simulation coaching in learning palliative care at their own workplaces in nursing homes. The participants, employees of two enterprises providing residential elderly care and nursing services (n= 20), wrote essays describing the competence they had developed through palliative care simulations. The essays were analysed using inductive content analysis. The participants found the simulations suitable for learning palliative care. The intervention had been particularly effective in the areas of ethical competence, emotional intelligence, situational awareness and counselling competence. Simulation-based coaching seems a promising method for learning palliative care in both initial and continuing education programmes. Despite the limited sample size, the knowledge produced can be used to develop palliative care training.
      PubDate: Tue, 24 May 2022 00:00:00 +000
       
  • Assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Water of an
           Abandoned Borrowed Pit with Wood-dust Deposit, Port Harcourt, Nigeria

    • Authors: William Azuka Iyama; Simeon Onisogen Edori, Chika Okwuchukwu, Woroma Stella Emejuru
      Abstract: The incidence of borrow pit pollution is a common phenomenon all over the world and Polycyclic aromatic hydrocarbons (PAHs) present in the environment are on the increase. Water samples from wood-dust effluent points at Egbelu, Port Harcourt were collected and analyzed for PAHs concentration. The analysis was achieved after extraction with Dichromethane and n-hexane in a Soxhlet extractor while Gas Chromatography mass spectrometry was used to separate and identify the components of PAHs in the water samples. The results obtained showed the presence of 2-3, 4 and 5-member ring priority PAHs from the borrow pit, while others were not detected from any of the locations examined. Different classifications showed that the mean concentration value for 2-3, 4 and 5 member rings were 0.132±0.00381, 0.235±0.00381, and 0.192±0.00436 mg/L respectively. In all, eight priority PAHs were detected (Benzo (a) Pyrene, Benzo (k) Fluoranthene, Indo (1,2,3, c-d) Pyrene, Dibenzo (a,h) Anthracene, Benzo(g,h,i) Naphthalene, Flourene and Anthracene. The Mean concentration of samples also showed Ao to be the highest in PAHs concentration while Bo is the lowest. Thus indicating the impact of wood dust on PAHs with only pyrogenic source of contamination. Authorities involved with administration, management and enforcement of contaminants and pollutants on dumping sites should channel their efforts to curb the incidence of outburst of PAHs pollution in the future and fishes from the same source be studied to show the levels of absorption.
      PubDate: Fri, 20 May 2022 00:00:00 +000
       
  • Development of Maluku Nutmeg (Myristica Fragrans Houtt.): Collaborations,
           Opportunities and Challenges

    • Authors: Semuel Leunufna
      Abstract: Nutmeg (Myristica fragrans Houtt.) is one of the few commoditites from Indonesia, especially Maluku islands, which are highly demended in international market for centuries and is the base of an international trading route known as “spice route” where Banda “spice island’, Maluku  as the center.  This study aimed at elaborating the development of nutmeg commodity in its center of origination and cultivation. Data were acquired during implementation of the Blended Learning-Value Chain project, a joint project between Indonesia and Netherlands, nutmeg innovation platform activities, as well as literature research and assessment. Efforts in nutmeg development in Maluku are implemented in inclusive and sustainable manner through collaboration of different institutions and stake holders along the value chain system of nutmeg commodity. Indentification of opportunities, challenges and problems togather with the way of dealing with them are carried out to be further implemented the findings in the field.  Suatainable development is persieved in term of environment and biodiversity, humanity especially related to indigenous community, and continuing profitability and therefore developing a sustainable living.
      PubDate: Fri, 20 May 2022 00:00:00 +000
       
  • The Secret of the Explosive Nature of the Aurora

    • Authors: Syun-Ichi Akasofu
      Abstract: The aurora is basically an electrical discharge phenomenon in space around the earth. After the introduction of satellites in this subject,  auroral science has greatly advanced. This article describes the present understanding the aurora and its explosive nature from the point of view of a series of electrical discharging processes, namely power supply (dynamo), circuit/current and dissipation (auroral phenomena); this is rather a new approach in the search for the secret of the aurora; in the past, many efforts have been focused on moving magnetic field lines. It is shown that the discharge circuit accumulates the power after the dynamo power increases above 1011 w, but it becomes unstable when the accumulated power becomes about 1016 J, thus suddenly unloading it and generating spectacular auroral displays.
      PubDate: Tue, 17 May 2022 00:00:00 +000
       
  • The Physico-chemical, morphological, Organoleptic and microscopic study of
           fresh Arbutus unedo L. fruits from Morocco

    • Authors: Badreddine ELMEJHED
      Abstract: The Arbutus unedo L or Arbutus tree is a leafy tree that represents a large part in the Moroccan ecological ecosystem. However, the poor studies on the fruits of Arbutus unedo in the Mediterranean countries cause poor exploitation and lack in the market. In this sense, the objective of this work focuses on a general description of the fruits of the province of Beni Mellal, such as morphological, organoleptic, microscopic, physico-chemical characteristics (pH, titratable acidity, moisture content, and ash content), lipid, protein and sugar content. For morphological characterization the studied fruit samples were red and red-orange color; With soft consistency and a rough skin; Mean total mass of 4.99 g ±1.38, a mean length of 1.99 cm ±0.28 and a width of 1.89 cm ±0.21. On the basis of physico-chemical analysis, we obtained a moisture content of up to 63.33%±3.21, an acid pH of 3.86±0.01, a titratable acidity of 0.6%±0.06 and an ash content of 0.35%±0.07. In addition, a spectral analysis using ATR-FTIR spectroscopy shows the identification of wave numbers in the (3010cm-1; 2920cm-1) for lipids, a (1600cm-1; 1652cm-1) for proteins and (1035cm-1; 1011cm-1) for sugar. While according to the organoleptic parameters, we found that the fruit was moderately acceptable by the consumers.  Comparing with several results, the variation of morphological and physicochemical parameters may be due to different geographical, climatic and tree age parameters. In addition, these results clearly show the need to seek ways of conservation and industrial exploitation.
      PubDate: Tue, 17 May 2022 00:00:00 +000
       
  • International Legal Framework Effects on International Law and especially
           its Impact on the Environment Law

    • Authors: Sapard Vincent-de Paul Mozes
      Abstract: In order for the rule of law to accomplish its main objectives or goals, which involves safeguarding people's freedom and well-being, international law must be utilized. The peculiar aspects of international law and the global legal system do not destruct the rule of law in any way. International law does not contain anything inherent towards the rule of law obstruction. The law plays a fundamental role in improving and promoting the rule of law. This paper focuses on the various international legal frameworks and their effects on general law and the environment. The international legal framework has had adverse impacts on various sectors such as health and human right in the different states in the world. The article investigated various problems such as how to have the international legal frameworks impacted the various sectors in the states worldwide, what impactt has the frameworks had on the environment itself, and how the countries have benefited from the international law. The findings of this paper have concluded that these legal frameworks on human rights have affected the general international law in various ways. These frameworks have had a significant role in enhancing the promotion and solidification of the global language of human rights law in the local discussion. In the health sector, the development and explanation of global health law over the past twenty years has been a recognizable development in international health policy mostlyin this period of COVID-19. In the past, public health was considered as a domain of nearly obsolete national jurisdiction, and multilateral relationships in this sphere were narrowed to discrete regions. The international environmental law sector has developed into a distinct part of international law besides its gradual start. Currently, it is full of principles and standards that regulate and control environmental aspects. The principles are significant for several reasons, such as enhancing a platform to dialogue the new environmental conventions and treaties and adopt the ones that are in existence to save the world as united and unique entity.
      PubDate: Thu, 12 May 2022 00:00:00 +000
       
  • Viral Load Pattern and Virological Suppression Rate of a Cohort of Hiv-1
           Patients in a Rural Community in Nigeria

    • Authors: I. O. Babatope; F. I. Esumeh, P. I. Orhue, KENNETH IYEVHOBU
      Abstract: HIV is a pandemic infection and remains a public health concern for many decades. This infection is associated with life threatening depletion of immune response, opportunistic infections and malignancies.  The aim of this study is to determine the viral load pattern and virological suppression rate of HIV-1 subjects in Irrua, Edo Central Senatorial District of Edo state, Nigeria. A total of three hundred and forty four (344) HIV-1 subjects aged between 17-60 years and of both sexes were recruited into the study. The HIV-1 subjects were divided into asymptomatic and symptomatic subjects. One hundred and fifty (150) apparently healthy HIV-1 negative subjects served as control. The viral load titre was determined using the COBAS Ampliprep/COBAS “Taqman” HIV-RNA test (PCR technology). Results obtained revealed that the mean viral loads of the asymptomatic and symptomatic HIV-1 subjects were 20,333.00±13,474.65 and 535,000.02±485,423.40 against control (20.00±0.00). Both asymptomatic and symptomatic groups revealed a statistical significant difference (P<0.05). Furthermore, there was no significant difference according to gender while comparison between viral load and age showed a statistically significant difference (P<0.05).The overall virological suppression rate of HIV-1 subjects on-ART was 81.6%. Sex-wise distribution revealed that more females (48.87%) were virally suppressed compared to their male counterparts (32.73%). According to age distribution, subjects belonging to the age bracket of 37-46 years recorded the highest frequency distribution of 37.96% while the least (5.70%) belonged to the age group of 17-26 years. In summary, there was a significant and progressive increase in the viral load titre of asymptomatic and symptomatic HIV-1subjects in relation to control. Also, the proportion of HIV-1 subjects who had viral load <1,000 RNA copies/ml was relatively high at 81.6% but falls short of UNAIDS’ 90% target for on-treatment viral suppression.  It re-emphasizes the need to test subjects and start treatment with antiretroviral drugs early.
      PubDate: Thu, 12 May 2022 00:00:00 +000
       
  • Competitive vs Collaborative Clinical Nutritionists: The European Clinical
           Nutrition Market

    • Authors: Garduno-Diaz ; Frost
      Abstract: The European clinical nutrition market is a diverse and competitive industry which would significantly benefit from more conversations about and action towards collaboration between specialists. So far, investment in market research has been focussed on competition and innovation. While collaboration is considered key for the progress of the industry, it is often not prioritized. Professionals, students and new entrants into the European clinical nutrition market, as well as the lay population, would all benefit from increased collaboration. This work provides examples of how to nourish collaboration within the industry. More collaboration would foster increased consumer confidence, engagement, trust and industry growth. Barriers to collaboration include the current dominance of competitive over collaborative working environments.
      PubDate: Thu, 12 May 2022 00:00:00 +000
       
 
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