Synergistic effect of physical and Chironomus plumosus combination disturbance on the characteristics of the micro-environment and micro-interface was investigated by the Rhizon samplers and Unisense micro sensor system. The results showed that the oxygen penetration depth (OPD), total oxygen exchange (TOE), water content and total microbial activity increased under the combination disturbance and bioturbation and were kept at the higher level, compared with the control. These parameters increased with the physical intensity under combination disturbance. However, the content of Fe2+ decreased under the combination disturbance and bioturbation and the decrease was more obvious than that in the control. The changes of the Fe2+, the water content and the total microbial activity were large at 0-4 cm depth in the sediments. Therefore, the area might be the active area for the transformation of internal sedimentary phosphorus forms. The curve fitting was used for the OPD, TOE, the content of Fe2+, the water content and the total microbial activity with the physical intensity under combination disturbance. It was observed that the second-order polynomial equation was suitable for the curve fitting. In addition, jump type synergistic effect was presented in the above mentioned parameters under combination disturbance when the physical intensity was higher than 34 r x min(-1). The remodeling on the sediment micro-interface and micro-environment might be the main inducing mechanism for the transformation of internal phosphorus.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Clinical Manifestations.
Alzheimers Dement
December 2024
Faculty of Health, Medicine and Life Sciences, School for Mental Health and Neuroscience, Alzheimer Centre Limburg, Maastricht University, Maastricht, The Netherlands, Maastricht, Netherlands; Gordon Center for Medical Imaging, Massachusetts General Hospital/Harvard Medical School, Boston, MA, USA.
Background: The brainstem locus coeruleus (LC) is among the first sites of Alzheimer's disease (AD) pathology, accruing hyperphosphorylated tau as early as in young adulthood. Animal studies indicate that the LC is crucially involved in sleep-wake regulation, a recently established factor contributing to AD-related pathophysiological processes. However, the associations between LC integrity and sleep-wake phenotypes in the context of AD pathology remain poorly characterized in humans.
View Article and Find Full Text PDFClinical Manifestations.
Alzheimers Dement
December 2024
UT Health San Antonio, San Antonio, TX, USA.
Background: Motivational disturbances are a major harbinger for dementia, being associated with a two- to seven-fold higher conversion rate from mild cognitive impairment. However, there are currently no objective assessment methods for identifying motivational disturbances in older adults (OA). Here, we present preliminary findings from a larger study which aims to validate an objective behavioral measure of effort in OAs by investigating the effects of age, risk, and reward (gain vs.
View Article and Find Full Text PDFAnesthesia and Pain Management for Scoliosis Surgery: A Narrative Review.
Clin Spine Surg
January 2025
Chair and Department of Palliative Medicine, University of Medical Sciences, Poznań, Poland.
Study Design: This was a narrative review.
Objective: The objective of this review was to summarize the current evidence and knowledge gaps regarding anesthesia and pain management for scoliosis surgery, including multimodal analgesia, and identify the best anesthetic approach to scoliosis surgery that ensures patient safety and pain relief even in the postoperative period, with minimal influence on SSEP monitoring.
Summary Of Background Data: Spinal surgeries and fusions for scoliosis are associated with high pain levels.
Palinopsia associated with the CDK4/6 inhibitor ribociclib during the first-line treatment of metastatic breast cancer: two case reports.
Front Oncol
December 2024
Hospital del Mar, Parc de Salut Mar, Barcelona, Spain.
The most frequently used standard treatment for hormone receptor (HR)-positive, human epidermal growth factor receptor 2 (HER2)-negative metastatic breast cancer patients consists of a CDK4/6 inhibitor (abemaciclib, ribociclib, or palbociclib) combined with endocrine therapy. Despite CDK4/6 inhibitors being part of routine care in the last few years, new adverse events continue to be reported. Here, we report two cases of palinopsia, a rare neurological visual disturbance that refers to the persistence or recurrence of a visual image after the removal of visual stimuli in patients treated with ribociclib and letrozole.
View Article and Find Full Text PDFDyslipidemia in Infants: Challenges in Diagnosis and Management.
Tunis Med
December 2024
University El Manar, Faculty of Medecine of Tunis. Pediatrics and Neonatology departement, Yasminette Ben Arous, Tunisia.
Dyslipidemia in infants is a rare condition characterized by abnormal levels of lipids in the blood, such as cholesterol and triglycerides. Early diagnosis poses a challenge due to nonspecific symptoms and lipid criteria differing from adults. Through two clinical cases of familial dyslipidemia (Type 1 Familial Hypercholesterolemia and Type 2b Combined Familial Hyperlipidemia), we highlight the diagnostic and therapeutic challenges encountered in infants, emphasizing the importance of a multidisciplinary approach in care and early screening.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!