scholarly journals Development of high slip-resistant footwear outsole using rubber surface filled with activated carbon/sodium chloride

2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Toshiaki Nishi ◽  
Takeshi Yamaguchi ◽  
Kazuo Hokkirigawa
Keyword(s):  
Older Adults ◽  
Activated Carbon ◽  
Sodium Chloride ◽  
Negative Pressure ◽  
Slip Rate ◽  
Air Bubbles ◽  
Real Contact ◽  
Rubber Surface ◽  
Life Threatening ◽  
Air Ingress

AbstractHigh slip-resistant footwear outsoles can reduce the risk of slip and fall on wet and icy surfaces. Falls on wet and icy surfaces can cause serious life-threatening injuries, especially for older adults. Here we show that footwear outsoles using the rubbers filled with activated carbon or sodium chloride produce higher friction force and reduce the slip rate in walking. We have identified that small depressions were formed on outsole materials filled with activated carbon or sodium chloride during friction between the rubber and surface leading to some air ingress into the interface. While there are air bubbles between the rubber and surface, real contacts are surrounded by water with negative pressure (Laplace pressure). It is considered that the negative pressure promotes real contact formation, which causes high friction. We consider that the outsole materials filled with activated carbon or sodium chloride can reduce the risk of slip-and-fall accidents.

scholarly journals Life–threatening Pulmonary Oedema Secondary to Tracheal Compression

2002 ◽  
Vol 30 (6) ◽  
pp. 804-806 ◽  
Author(s):  
H. Butterell ◽  
R. H. Riley
Keyword(s):  
Emergency Department ◽  
Case Report ◽  
Airway Obstruction ◽  
Pulmonary Oedema ◽  
Negative Pressure ◽  
Upper Airway ◽  
Tracheal Compression ◽  
Negative Pressure Pulmonary Oedema ◽  
Life Threatening ◽  
Thyroid Goitre

We present a case of negative pressure pulmonary oedema due to an overlooked cause. A 45-year-old female patient presented to the emergency department unconscious with severe pulmonary oedema. Subsequent investigations revealed a thyroid goitre causing significant tracheal compression. This case report highlights an extremely rare but potentially dangerous sequela of upper airway obstruction.

scholarly journals Influence of cross-section geometry on air demand ratio in high-head conduits with radial gate

2021 ◽  
Author(s):  
Alp Bugra Aydin ◽  
Ahmet Baylar ◽  
Fahri Ozkan ◽  
Muhammed Cihat Tuna ◽  
Mualla Ozturk
Keyword(s):  
Froude Number ◽  
Cross Section ◽  
Negative Pressure ◽  
Air Bubbles ◽  
Gate Opening ◽  
Series Of Experiments ◽  
High Head ◽  
Radial Gate ◽  
Cross Section Geometry ◽  
Air Vent

Abstract When the gate of a high-head conduit is partly opened, a negative pressure draws the air in through the air vent. Air that is entrained into the water is instantly forced downstream in the form of air bubbles. When the studies on high-head gated conduits were examined, it was determined that the air demand ratio varied depending on many hydraulic and geometric parameters. This work focused on determining the effect of conduit cross-section geometry on the air-demand ratio. A series of experiments were carried out on high-head radial gated conduits having different cross-section geometries. Experimental results showed that conduit cross-section geometry was an important effect on the air demand ratio especially in small gate opening rates. Further, design equations for the air demand ratio were presented relating the air demand ratio to Froude number, gate opening rate, and ratio of gate opening to conduit length.

scholarly journals Flushing of an intravenous catheter

2019 ◽  
Vol 29 (3) ◽  
pp. 614-618
Author(s):  
Rutger C.C. Hengeveld ◽  
Bianca E. Olofsen ◽  
Edmée C. van Dongen-Lases ◽  
Peter A. Leenhouts ◽  
Victor F.H.A. Hakkenberg van Gaasbeek ◽  
...  
Keyword(s):  
Emergency Department ◽  
Renal Function ◽  
Case Report ◽  
Sodium Chloride ◽  
Continuous Infusion ◽  
Intravenous Catheter ◽  
Blood Samples ◽  
Close Proximity ◽  
Laboratory Results ◽  
Life Threatening

Introduction: Phlebotomy is an error-prone process in which mistakes are difficult to reveal. This case report describes the effect on laboratory results originating from a blood sample collected in close proximity to an intravenous catheter. Materials and methods: A 69-year-old male patient was referred to the Emergency department where pneumonia was suspected. Phlebotomy was performed to collect blood samples to assess electrolytes, renal function, liver function, infection and haematological parameters. Results: The laboratory analysis showed reduced potassium and calcium concentrations. To prevent life-threatening cardiac failure the clinician decided to correct those electrolytes. Remarkably, the electrocardiogram showed no abnormalities corresponding to hypokalaemia and hypocalcaemia. This observation, in combination with an overall increase in laboratory parameters with the exception of sodium and chloride, led to the suspicion of a preanalytical error. Retrospectively, an intravenous catheter was inserted in close proximity of the puncture place but no continuous infusion was started prior to phlebotomy. However, the intravenous catheter was flushed with sodium chloride. Since potential other causes were excluded, the flushing of the intravenous catheter with sodium chloride prior to phlebotomy was the most probable cause for the deviating laboratory results and subsequently for the unnecessary potassium and calcium suppletion. Conclusion: This case underlines the importance of caution in the interpretation of laboratory results obtained from specimens that are collected in the proximity of an intravenous catheter, even in the absence of continuous infusion.

scholarly journals Characteristics of Activated Carbon from Oil Palm Fronds with the Addition of Sodium Carbonate (Na2CO3) and Sodium Chloride (NaCl) as an Activator

2019 ◽  
Vol 1 (1) ◽  
pp. 30-35
Author(s):  
Seri Maulina ◽  
Gewa Handika
Keyword(s):  
Activated Carbon ◽  
Sodium Chloride ◽  
Sodium Carbonate ◽  
Oil Palm ◽  
Elaeis Guineensis ◽  
Activation Temperature ◽  
Spectra Analysis ◽  
Oil Palm Fronds ◽  
The Difference ◽  
Palm Fronds

This paper aims to understand the difference in characteristics of activated carbon produced from oil palm fronds (Elaeis guineensis Jacq) through the addition of two different activators, namely sodium carbonate (Na2CO3) and sodium chloride (NaCl). To do this, activator concentration of 10 percent each with activation temperature of 600 oC were applied in the experiment. Moreover, to determine the quality of activated carbon produced, a morphological analysis of activated carbon surfaces as well as FTIR spectra analysis on activated carbon. Identification using FTIR spectrophotometer revealed that the activated carbon in this study contained functional groups of O-H, C = O, C = C, C-C, and C-H.

Experience of Time and Subjective Age When Facing a Limited Lifetime: The Case of Older Adults with Advanced Cancer

2021 ◽  
pp. 089826432110631
Author(s):  
Katsiaryna Laryionava ◽  
Anton Schönstein ◽  
Pia Heußner ◽  
Wolfgang Hiddemann ◽  
Eva C. Winkler ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Older Adults ◽  
Advanced Cancer ◽  
Later Life ◽  
Subjective Age ◽  
Perceived Quality Of Life ◽  
Experience Of Time ◽  
Finite Resource ◽  
Life Threatening

Objectives We addressed two questions: (1) Does advanced cancer in later life affect a person’s awareness of time and their subjective age? (2) Are awareness of time and subjective age associated with distress, perceived quality of life, and depression? Methods We assessed patients suffering terminal cancer (OAC, n = 91) and older adults free of any life-threatening disease (OA, n = 89), all subjects being aged 50 years or older. Results Older adults with advanced cancer perceived time more strongly as being a finite resource and felt significantly older than OA controls. Feeling younger was meaningfully related with better quality of life and less distress. In the OA group, feeling younger was also associated to reduced depression. Perceiving time as a finite resource was related to higher quality of life in the OA group. Discussion Major indicators of an older person’s awareness of time and subjective aging differ between those being confronted with advanced cancer versus controls.

National consensus project for quality palliative care

2015 ◽  
pp. 11-19 ◽  
Author(s):  
Constance M. Dahlin
Keyword(s):  
Older Adults ◽  
Palliative Care ◽  
Clinical Practice ◽  
Clinical Practice Guidelines ◽  
Practice Guidelines ◽  
Quality Care ◽  
Life Threatening ◽  
National Consensus

The National Consensus Project for Quality Palliative Care’s Clinical Practice Guidelines for Quality Care is a significant resource that offers the nurse a framework for quality care in all settings. The Clinical Practice Guidelines are appropriate to a range of populations from neonates to children to adults and older adults; a range of chronic progressive and serious life-threatening illnesses, injuries, and trauma; and a range of vulnerable and underresourced populations. The Clinical Practice Guidelines are appropriate for any setting because they facilitate partnerships for caring for patients with debilitating and life-limiting illnesses and offer support for the nurse in delivering the care, particularly for long-term patients.

scholarly journals Concurrent Negative-Pressure Pulmonary Edema (NPPE) and Takotsubo Syndrome (TTS) after Upper Airway Obstruction

2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Evan Harmon ◽  
Sebastian Estrada ◽  
Ryan J. Koene ◽  
Sula Mazimba ◽  
Younghoon Kwon
Keyword(s):  
Airway Obstruction ◽  
Pulmonary Edema ◽  
Negative Pressure ◽  
Upper Airway ◽  
Upper Airway Obstruction ◽  
Takotsubo Syndrome ◽  
Negative Pressure Pulmonary Edema ◽  
Acute Airway Obstruction ◽  
Increased Risk ◽  
Life Threatening

Upper airway obstruction is a potentially life-threatening emergency often encountered in the acute care, perioperative, and critical care settings. One important complication of acute obstruction is negative-pressure pulmonary edema (NPPE). We describe two cases of acute upper airway obstruction, both of which resulted in flash pulmonary edema complicated by acute hypoxic respiratory failure. Though NPPE was suspected, these patients were also found to have Takotsubo syndrome (TTS). Neither patient had prior cardiac disease, and both subsequently had a negative ischemic workup. Because TTS is a condition triggered by hyperadrenergic states, the acute airway obstruction alone or in combination with NPPE was the likely explanation for TTS in each case. These cases highlight the importance of also considering cardiogenic causes of pulmonary edema in the setting of upper airway obstruction, which we suspect generates a profound catecholamine surge and places patients at increased risk of TTS development.

scholarly journals A Friend in Need? Exploring the Influence of Disease and Disability Onset on the Number of Close Friends Among Older Adults

2019 ◽  
Vol 74 (8) ◽  
pp. e119-e124 ◽  
Author(s):  
Kenzie Latham-Mintus
Keyword(s):  
Older Adults ◽  
Heart Disease ◽  
Panel Data ◽  
Daily Living ◽  
Change Score ◽  
Network Activation ◽  
Life Threatening ◽  
Lagged Dependent Variable ◽  
Using Data ◽  
Retirement Study

Abstract Objectives This research examines whether onset of life-threatening disease (i.e., cancer, lung disease, heart disease, or stroke) or activities of daily living disability influences the reported number of close friends. Method Using data from the Health and Retirement Study (HRS; 2006–2012), this research capitalizes on panel data to assess changes in number of close friends over a 4-year period. Lagged dependent variable (LDV) and change score (CS) approaches were used. Results Both the LDV and CS models provide evidence that onset of life-threatening disease was associated with reporting more friends 4 years later. In particular, onset of cancer was associated with reporting more close friends. Discussion This research provides evidence of the network activation hypothesis following onset of life-threatening disease among older adults.

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