Tribological studies on Aluminium alloys

Aluminium alloys have extensive application in industries. The range of physical properties that can be imparted to them is remarkable. Addition of Silicon to Aluminium helps to increase their strength and wear resistance. Al-Si alloys are extensivelyused in industrial applications due to better tribological properties. In the present work,an attempt has been made to study the tribological properties of three Aluminium as-cast alloy samples i.e Al-7wt%Si, Al-10wt%Si and Al-14wt%Si. Wear tests were conducted using a pin-on-disc type wear testing machine(DUCOM wear and friction monitor) after metallographic examination followed by hardness measurement.The operational parameters that were varied were percentage Silicon content of the alloy, normal load,sliding velocity, sliding distance and lubrication. The wear was higher at increased velocity at increased normal load. Wear was found to be increasing with decreasing Silicon content. SEM characterisation was done. Interestingly, wear under lubricated condition was higher. The interaction of Silicon platelets at the Al-Si boundary might have been the possible reason

IN VITRO ANTIMICROBIAL ACTIVITY AND MOLECULAR CHARACTERIZATION OF BACILLUS AMYLOLIQUEFACIENS ISOLATED FROM SIMILIPAL BIOSPHERE RESERVE, ODISHA, INDIA

Objective: The purpose of our study was to isolate and identify the bacteriocinogenic strain exhibiting broad range antimicrobial activity and to analyze the effect of different culturing conditions on the production of an antimicrobial metabolites isolated from the soil of Simlipal Biosphere Reserve, India. Methods: In the current study, bacterial strains were screened for antimicrobial activity from soil samples of five different regions. The effect of varying culture conditions such as pH, incubation period, and temperature along with carbon and nitrogen sources with and without certain salts was studied. The characterization of the potent strain was studied by morphological, biochemical, and 16S rRNA genetic sequencing. A phylogenetic affiliation of the strain was studied. Results: A total of 31 out of 245 strains isolated from soil were screened on the basis of antimicrobial results against the test pathogens. On the basis of bacteriocin-like inhibition studies method, one potential isolate that exhibited the highest inhibition against all the pathogens was selected. The optimization of highest antimicrobial metabolite production by the isolate with the influence of physical parameters was found as the incubation period of 3 days with 37°C temperature at pH 8 and for the chemical parameters dextrose was showed the most effective carbon sources when implemented with salts and yeast extract as the best sources of nitrogen with salts. The crude metabolite showed an absorbance peak value of 1.234 with optimum ƛ-max at 214 nm. The potent isolate showed maximum identity with Bacillus amyloliquefaciens (99% similarity) with highest query coverage on basic local alignment search tool search analysis of the 16S rDNA sequence. Phylogenetic analysis revealed close affiliation of the isolate with B. amyloliquefaciens (KC494392.1) having antimicrobial activity. Conclusion: The findings revealed that the incubation period, temperature, pH, and the culture medium have a direct influence on the production of metabolites. These parameters can be modified for the improvement of the fermentation process

PROBIOTIC CHARACTERIZATION OF BACILLUS SUBTILIS STRAIN ISOLATED FROM INFANT FECAL MATTER REVEALED BY 16S rRNA GENE AND PHYLOGENETIC ANALYSIS

Objective: The rationale of our study was to isolate and identify the putative probiotic strain from infant fecal matter exhibiting a broad range of antimicrobial activity and to analyze the effect of different culturing conditions on its probiotic properties and the production of antimicrobial metabolites. Methods: In the present study, bacterial strains were screened for probiotic properties and antimicrobial activity from infant fecal matter (6 months–2 years). The effect of varying culture conditions such as tolerance to acid, bile salt, phenol, NaCl, pH, incubation period, and temperature along with autoaggregation assay, hydrophobicity, and hemolysis was studied. The characterization of the potent strain was studied by morphological, biochemical, and 16S rRNA gene sequencing along the phylogenetic affiliation of the strain was studied. Results: Two putative probiotic bacteria (DAM and IFM) were isolated, identified, characterized, and predicted at pH 2.0, 3.0, and 4.0, the isolate IFM had 50%, 60%, and 70% survivability, while isolate DAM had 55%, 63%, and 75% survivability, respectively. At a bile salt concentration of 0.5%, both isolates had a 75% survival rate. The isolates exhibited a high percentage of hydrophobicity and autoaggregation. The isolates also had non-hemolytic activity and were susceptible to many clinical tested antibiotics (tetracycline, erythromycin, ampicillin, gentamycin, penicillin, etc.). The isolate showed antimicrobial activity against enteric pathogens such as Staphylococcus aureus, Escherichia coli, and Shigella dysenteriae. The accession number of Bacillus subtilis MT279753 and MK453362 was submitted to NCBI. Conclusion: The result revealed that isolates have potent probiotic properties and possess a direct influence on the production of antimicrobial metabolites. These parameters can be modified for the improvement of the potentiality of the isolates

Pattern of regional metastasis in papillary thyroid cancer: our experience of 86 cases

Background: Papillary thyroid cancer (PTC) have a high propensity for regional metastasis which ranges from 30- 80%. The objective of the study is to assess the pattern of lymph node metastasis and to plan the extent of neck dissection accordingly. Though central neck dissection (CND) is routinely done in PTC but the indication of extent of  neck dissection is still controversial.Methods: The medical records of   86 patients with PTC  who underwent total thyroidectomy (TT) and neck dissection at Dr. B. Borooah Cancer Institute(BBCI) from January 2010 to  December 2014 were retrospectively reviewed.Results: Out of 86 patients 22 were males and 64 were females. The median age of presentation was 40.0 years. 43 out of 86 patients (50%) had cervical lymph node metastasis. Ipsilateral nodal metastasis was found in 37 patients (43.0%) and contralateral metastasis was found in only 6 patients (7.0%).Tumors with size more than 3cm had ipsilateral nodal metastasis in 21(56.7%) patients which is statistically significant (p 0.03).A strong association was found between level VI and the ipsilateral group of lymph nodes involving level II,III,IV and V.Conclusions: Majority of patients present with multiple level nodal metastasis, with the central compartment commonly involved. In view of the high incidence of metastatic lymph nodes in levels II, III, IV and level VI ,our study  supports the recommendation  for posterolateral  and anterior  neck dissection in patients with clinically positive neck  nodes and tumor with aggressive criteria

Self-Management: Parkinson’s as a Chronic Condition

Setting Parkinson’s is cited as a chronic disease which is a “disease… of long duration and generally slow progression”. The burden of chronic, neurodegenerative diseases, including Parkinson’s, is a growing problem worldwide, and it is necessary to find ways to support People Living with Parkinson’s (PlwP) and their carers world-wide. Objective This poster presents the results of a systematic review of the existing literature relating to selfmanagement in PlwP. Methods The Cochrane Database of Systematic Reviews, PsycINFO, CINAHL and Embase were used to identify evidence such as randomised controlled trials and original literature, as well as evidence-based guidelines, evidence-based review articles and meta-analysis relevant to the topics reviewed. 3532 studies were found in total, of which 49 were appropriate for review. Selection was based on quality of evidence and relevance to the topic (table 1). Five studies were judged as meeting the inclusion criteria and included in the initial review. Data was extracted, summarised, coded and critiqued. Findings Five studies provided evidence related to the effectiveness of self-management. Four of the studies demonstrated beneficial impact but one study showed negative impact, namely worsening in fatigue scores. Emerging Themes Experience of illness: Three areas emerged from the evidence as particularly impacting on selfmanagement. Pain and fatigue was an area that was improved by CDSMP involvement. Deterioration and acceptance of loss of physical and mental function was a large issue for people living with the fluctuating nature of the disorder. Depression was positively impacted by the CDSMP, with increased sense of self-efficacy and reduced stress levels. Ways of coping: Relaxation was a key theme throughout the literature, which responded positively to mindfulness exercises. Self-tailoring was shown to be highly beneficial to participants, and was a particular focus for the young onset PlwP. Use of Health Services: Many of the studies found no impact on health service use, with only one finding any reduction in emergency room visits. It was noted that the participants had appropriate use of health services at baseline but developed better collaborative relationships with their healthcare teams. Self Efficacy: Self-efficacy was measured in the majority of studies and found to be worthwhile in most, with benefits sustained for one year. Overall Self-management improves self-efficacy, despite the progressive, fluctuating nature of Parkinson’s. It is limited by the health systems in which it is attempted, requiring a collaborative, flexible approach from Health Professionals. In the medical model, this becomes a source of frustration and conflict. Additionally, younger PlwP seem to have a higher desire to engage in self-management and collaborative medicine, requiring increased access and responsiveness from the services they are engaged with, a flexibility that is not possible in the current model of care. Conclusion Self-management is a valuable tool in the overall management for PlwP. Self-management also requires that the health system be accessible, reactive and collaborative, rather than a medical model system focussed on acute issues, and that healthcare professionals acknowledge the PlwP as someone knowledgeable about their condition and able to play an expert role in their own care. Many healthcare professionals would require support and education around this manner of working. A Parkinson's Disease Nurse Specialist is wellplaced to oversee and contribute a supervisory role for healthcare staff and PlwP as an element of a larger overall service for people living with the conditio

Self-Management: Parkinson’s as a Chronic Condition

Setting Parkinson’s is cited as a chronic disease which is a “disease… of long duration and generally slow progression”. The burden of chronic, neurodegenerative diseases, including Parkinson’s, is a growing problem worldwide, and it is necessary to find ways to support People Living with Parkinson’s (PlwP) and their carers world-wide. Objective This poster presents the results of a systematic review of the existing literature relating to selfmanagement in PlwP. Methods The Cochrane Database of Systematic Reviews, PsycINFO, CINAHL and Embase were used to identify evidence such as randomised controlled trials and original literature, as well as evidence-based guidelines, evidence-based review articles and meta-analysis relevant to the topics reviewed. 3532 studies were found in total, of which 49 were appropriate for review. Selection was based on quality of evidence and relevance to the topic (table 1). Five studies were judged as meeting the inclusion criteria and included in the initial review. Data was extracted, summarised, coded and critiqued. Findings Five studies provided evidence related to the effectiveness of self-management. Four of the studies demonstrated beneficial impact but one study showed negative impact, namely worsening in fatigue scores. Emerging Themes Experience of illness: Three areas emerged from the evidence as particularly impacting on selfmanagement. Pain and fatigue was an area that was improved by CDSMP involvement. Deterioration and acceptance of loss of physical and mental function was a large issue for people living with the fluctuating nature of the disorder. Depression was positively impacted by the CDSMP, with increased sense of self-efficacy and reduced stress levels. Ways of coping: Relaxation was a key theme throughout the literature, which responded positively to mindfulness exercises. Self-tailoring was shown to be highly beneficial to participants, and was a particular focus for the young onset PlwP. Use of Health Services: Many of the studies found no impact on health service use, with only one finding any reduction in emergency room visits. It was noted that the participants had appropriate use of health services at baseline but developed better collaborative relationships with their healthcare teams. Self Efficacy: Self-efficacy was measured in the majority of studies and found to be worthwhile in most, with benefits sustained for one year. Overall Self-management improves self-efficacy, despite the progressive, fluctuating nature of Parkinson’s. It is limited by the health systems in which it is attempted, requiring a collaborative, flexible approach from Health Professionals. In the medical model, this becomes a source of frustration and conflict. Additionally, younger PlwP seem to have a higher desire to engage in self-management and collaborative medicine, requiring increased access and responsiveness from the services they are engaged with, a flexibility that is not possible in the current model of care. Conclusion Self-management is a valuable tool in the overall management for PlwP. Self-management also requires that the health system be accessible, reactive and collaborative, rather than a medical model system focussed on acute issues, and that healthcare professionals acknowledge the PlwP as someone knowledgeable about their condition and able to play an expert role in their own care. Many healthcare professionals would require support and education around this manner of working. A Parkinson's Disease Nurse Specialist is wellplaced to oversee and contribute a supervisory role for healthcare staff and PlwP as an element of a larger overall service for people living with the conditio

Self-Management: Parkinson’s as a Chronic Condition

Setting Parkinson’s is cited as a chronic disease which is a “disease… of long duration and generally slow progression”. The burden of chronic, neurodegenerative diseases, including Parkinson’s, is a growing problem worldwide, and it is necessary to find ways to support People Living with Parkinson’s (PlwP) and their carers world-wide. Objective This poster presents the results of a systematic review of the existing literature relating to selfmanagement in PlwP. Methods The Cochrane Database of Systematic Reviews, PsycINFO, CINAHL and Embase were used to identify evidence such as randomised controlled trials and original literature, as well as evidence-based guidelines, evidence-based review articles and meta-analysis relevant to the topics reviewed. 3532 studies were found in total, of which 49 were appropriate for review. Selection was based on quality of evidence and relevance to the topic (table 1). Five studies were judged as meeting the inclusion criteria and included in the initial review. Data was extracted, summarised, coded and critiqued. Findings Five studies provided evidence related to the effectiveness of self-management. Four of the studies demonstrated beneficial impact but one study showed negative impact, namely worsening in fatigue scores. Emerging Themes Experience of illness: Three areas emerged from the evidence as particularly impacting on selfmanagement. Pain and fatigue was an area that was improved by CDSMP involvement. Deterioration and acceptance of loss of physical and mental function was a large issue for people living with the fluctuating nature of the disorder. Depression was positively impacted by the CDSMP, with increased sense of self-efficacy and reduced stress levels. Ways of coping: Relaxation was a key theme throughout the literature, which responded positively to mindfulness exercises. Self-tailoring was shown to be highly beneficial to participants, and was a particular focus for the young onset PlwP. Use of Health Services: Many of the studies found no impact on health service use, with only one finding any reduction in emergency room visits. It was noted that the participants had appropriate use of health services at baseline but developed better collaborative relationships with their healthcare teams. Self Efficacy: Self-efficacy was measured in the majority of studies and found to be worthwhile in most, with benefits sustained for one year. Overall Self-management improves self-efficacy, despite the progressive, fluctuating nature of Parkinson’s. It is limited by the health systems in which it is attempted, requiring a collaborative, flexible approach from Health Professionals. In the medical model, this becomes a source of frustration and conflict. Additionally, younger PlwP seem to have a higher desire to engage in self-management and collaborative medicine, requiring increased access and responsiveness from the services they are engaged with, a flexibility that is not possible in the current model of care. Conclusion Self-management is a valuable tool in the overall management for PlwP. Self-management also requires that the health system be accessible, reactive and collaborative, rather than a medical model system focussed on acute issues, and that healthcare professionals acknowledge the PlwP as someone knowledgeable about their condition and able to play an expert role in their own care. Many healthcare professionals would require support and education around this manner of working. A Parkinson's Disease Nurse Specialist is wellplaced to oversee and contribute a supervisory role for healthcare staff and PlwP as an element of a larger overall service for people living with the conditio

Self-Management: Parkinson’s as a Chronic Condition

Setting Parkinson’s is cited as a chronic disease which is a “disease… of long duration and generally slow progression”. The burden of chronic, neurodegenerative diseases, including Parkinson’s, is a growing problem worldwide, and it is necessary to find ways to support People Living with Parkinson’s (PlwP) and their carers world-wide. Objective This poster presents the results of a systematic review of the existing literature relating to selfmanagement in PlwP. Methods The Cochrane Database of Systematic Reviews, PsycINFO, CINAHL and Embase were used to identify evidence such as randomised controlled trials and original literature, as well as evidence-based guidelines, evidence-based review articles and meta-analysis relevant to the topics reviewed. 3532 studies were found in total, of which 49 were appropriate for review. Selection was based on quality of evidence and relevance to the topic (table 1). Five studies were judged as meeting the inclusion criteria and included in the initial review. Data was extracted, summarised, coded and critiqued. Findings Five studies provided evidence related to the effectiveness of self-management. Four of the studies demonstrated beneficial impact but one study showed negative impact, namely worsening in fatigue scores. Emerging Themes Experience of illness: Three areas emerged from the evidence as particularly impacting on selfmanagement. Pain and fatigue was an area that was improved by CDSMP involvement. Deterioration and acceptance of loss of physical and mental function was a large issue for people living with the fluctuating nature of the disorder. Depression was positively impacted by the CDSMP, with increased sense of self-efficacy and reduced stress levels. Ways of coping: Relaxation was a key theme throughout the literature, which responded positively to mindfulness exercises. Self-tailoring was shown to be highly beneficial to participants, and was a particular focus for the young onset PlwP. Use of Health Services: Many of the studies found no impact on health service use, with only one finding any reduction in emergency room visits. It was noted that the participants had appropriate use of health services at baseline but developed better collaborative relationships with their healthcare teams. Self Efficacy: Self-efficacy was measured in the majority of studies and found to be worthwhile in most, with benefits sustained for one year. Overall Self-management improves self-efficacy, despite the progressive, fluctuating nature of Parkinson’s. It is limited by the health systems in which it is attempted, requiring a collaborative, flexible approach from Health Professionals. In the medical model, this becomes a source of frustration and conflict. Additionally, younger PlwP seem to have a higher desire to engage in self-management and collaborative medicine, requiring increased access and responsiveness from the services they are engaged with, a flexibility that is not possible in the current model of care. Conclusion Self-management is a valuable tool in the overall management for PlwP. Self-management also requires that the health system be accessible, reactive and collaborative, rather than a medical model system focussed on acute issues, and that healthcare professionals acknowledge the PlwP as someone knowledgeable about their condition and able to play an expert role in their own care. Many healthcare professionals would require support and education around this manner of working. A Parkinson's Disease Nurse Specialist is wellplaced to oversee and contribute a supervisory role for healthcare staff and PlwP as an element of a larger overall service for people living with the conditio

A Literature Review of Disease Education for People with Parkinson's Disease

Purpose Disease-specific research on the information needs of people with Parkinson's is non-existent but other diseases with a similar impact have been studied. This area of knowledge has a direct impact upon self-management of diseases as well as on quality of life. While Parkinson’s is not a life-threatening disease in the usual meaning of the words, it results in significant, increasing disability and receiving the diagnosis is a life-altering moment. The person may experience conflicting sentiments of relief and turmoil, described by some as “life-shattering” (Pinder, 1992). Methods Google Scholar, Cochrane and PubMed were searched to identify randomised controlled trials, evidence-based review articles and meta-analyses, as well as evidence-based guidelines. Only articles in English were studied. The search included articles published between January 1990 and February 2012 using the keywords and subjects: “Parkinson’s”, “information needs”, “patients”, “carers”, and “diagnosis”. Two review articles (Adams, Boulton and Watson, 2009; Kinnersley et al., 2008) and twenty studies (Wherry, 2012) were found and analysed Findings Two types of patients were noted within the literature. Type one (T1) was older, possibly had mild cognitive changes, had a lower level of educational attainment, and was likely to be retired or unemployed. Type two (T2), was younger, had a higher level of educational attainment and was likely to be still in employment (Kim et al., 2012). The typical T1 patient had a higher level of unmet information needs than T2 patients who were proactive in seeking information. Complex and rarely asked questions were more likely to be presented by T2 patients. Preferred sources of information for T1 patients included physicians and specialist nurses, whereas T2 patients supplemented the information from their care team by using external sources (Andreassen et al., 2005). Cultural behaviour in health had an impact, some patients exhibiting a higher reliance on medical teams for information and decision making than others (Wittman et al., 2011). Information needs changed over time and there was an obvious challenge to identify these needs when the patient was seen in a clinic setting (Kim et al., 2012). The level of information provided influenced help-seeking behaviour and a balance between inappropriate reassurance and overemphasis on complications was necessary (Wittman et al., 2011). Discussion Chronic care health professionals have begun to see patients from the Baby Boomer generation and can anticipate a rise in “technologically-savvy” T2 patients who demand high levels of communication and consultation with their care teams. The challenge remains to identify the specific information requirements and so meet patients’ needs in a personalised manner. In the light of this literature review, local practice has evolved to institute a nurse-led clinic and to provide patients with an information pack, specifically focused on the needs of newly-diagnosed patients. Given the prevalence and impact of Parkinson’s, the research base in this area is currently insufficient to inform policy and practice. Future research should explore the changes in information needs over the course of the disease, including the needs of the primary carers. A study identifying the best way to meet these needs is urgently required in order to ensure that best practice is informed by relevant and robust evidenc

A Literature Review of Disease Education for People with Parkinson's Disease

Purpose Disease-specific research on the information needs of people with Parkinson's is non-existent but other diseases with a similar impact have been studied. This area of knowledge has a direct impact upon self-management of diseases as well as on quality of life. While Parkinson’s is not a life-threatening disease in the usual meaning of the words, it results in significant, increasing disability and receiving the diagnosis is a life-altering moment. The person may experience conflicting sentiments of relief and turmoil, described by some as “life-shattering” (Pinder, 1992). Methods Google Scholar, Cochrane and PubMed were searched to identify randomised controlled trials, evidence-based review articles and meta-analyses, as well as evidence-based guidelines. Only articles in English were studied. The search included articles published between January 1990 and February 2012 using the keywords and subjects: “Parkinson’s”, “information needs”, “patients”, “carers”, and “diagnosis”. Two review articles (Adams, Boulton and Watson, 2009; Kinnersley et al., 2008) and twenty studies (Wherry, 2012) were found and analysed Findings Two types of patients were noted within the literature. Type one (T1) was older, possibly had mild cognitive changes, had a lower level of educational attainment, and was likely to be retired or unemployed. Type two (T2), was younger, had a higher level of educational attainment and was likely to be still in employment (Kim et al., 2012). The typical T1 patient had a higher level of unmet information needs than T2 patients who were proactive in seeking information. Complex and rarely asked questions were more likely to be presented by T2 patients. Preferred sources of information for T1 patients included physicians and specialist nurses, whereas T2 patients supplemented the information from their care team by using external sources (Andreassen et al., 2005). Cultural behaviour in health had an impact, some patients exhibiting a higher reliance on medical teams for information and decision making than others (Wittman et al., 2011). Information needs changed over time and there was an obvious challenge to identify these needs when the patient was seen in a clinic setting (Kim et al., 2012). The level of information provided influenced help-seeking behaviour and a balance between inappropriate reassurance and overemphasis on complications was necessary (Wittman et al., 2011). Discussion Chronic care health professionals have begun to see patients from the Baby Boomer generation and can anticipate a rise in “technologically-savvy” T2 patients who demand high levels of communication and consultation with their care teams. The challenge remains to identify the specific information requirements and so meet patients’ needs in a personalised manner. In the light of this literature review, local practice has evolved to institute a nurse-led clinic and to provide patients with an information pack, specifically focused on the needs of newly-diagnosed patients. Given the prevalence and impact of Parkinson’s, the research base in this area is currently insufficient to inform policy and practice. Future research should explore the changes in information needs over the course of the disease, including the needs of the primary carers. A study identifying the best way to meet these needs is urgently required in order to ensure that best practice is informed by relevant and robust evidenc