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  1. Article ; Online: Competitive adsorption mechanisms of Cd(II), Cu(II) and Pb(II) on bioinspired mesoporous silica revealed by complementary adsorption/isothermal titration calorimetry studies.

    Gourmand, Cléophée / Bertagnolli, Caroline / Prelot, Bénédicte / Boos, Anne / Hubscher-Bruder, Véronique / Brandel, Jérémy

    Dalton transactions (Cambridge, England : 2003)

    2024  Volume 53, Issue 8, Page(s) 3690–3701

    Abstract: This study presents the adsorption properties of a bioinspired grafted mesoporous silica material and the competitive effects between Cd(II) or Cu(II) and Pb(II) during the adsorption process. Glutathione, a natural antioxidant known for its metal ... ...

    Abstract This study presents the adsorption properties of a bioinspired grafted mesoporous silica material and the competitive effects between Cd(II) or Cu(II) and Pb(II) during the adsorption process. Glutathione, a natural antioxidant known for its metal binding properties, has been successfully grafted to SBA-15 mesoporous silica and the optimum adsorption parameters were determined. This original and multidisciplinary approach combines classical adsorption studies with thermodynamic investigations to understand the adsorption behavior of Cd(II), Cu(II) and Pb(II) on this material. To this end, isothermal titration calorimetry (ITC) has been used to elucidate the mechanisms of single-metal and two-metal adsorption. The results showed affinity in the order Pb(II) > Cu(II) > Cd(II) in single metal systems. Cd(II) adsorption relied mainly on physical contributions while Cu(II) and Pb(II) adsorption was shown to be chemically driven. Two-metal systems highlighted that Cd(II) and Pb(II) are adsorbed on the same coordination sites, whereas Cu(II) and Pb(II) are adsorbed on different sites. The material showed good selectivity and encouraging results were obtained on real effluents.
    Language English
    Publishing date 2024-02-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 1472887-4
    ISSN 1477-9234 ; 1364-5447 ; 0300-9246 ; 1477-9226
    ISSN (online) 1477-9234 ; 1364-5447
    ISSN 0300-9246 ; 1477-9226
    DOI 10.1039/d3dt03210h
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Filter feeders are key to small microplastic residence times in stratified lakes: A virtual experiment.

    Gilfedder, B S / Elagami, H / Boos, J P / Brehm, J / Schott, M / Witt, L / Laforsch, C / Frei, S

    The Science of the total environment

    2023  Volume 890, Page(s) 164293

    Abstract: Microplastic (MP) is potentially harmful to lake ecosystems, with its uptake into the food web largely controlled by its residence time in the lake water column. Here we combine laboratory and virtual experiments to quantify residence times of small MP (< ...

    Abstract Microplastic (MP) is potentially harmful to lake ecosystems, with its uptake into the food web largely controlled by its residence time in the lake water column. Here we combine laboratory and virtual experiments to quantify residence times of small MP (<15 μm) in two contrasting model lakes; Lake Constance (large lake) and Esthwaite Water (a small lake). We compare MP residence times in a purely physical system with MP transport controlled by sinking and mixing to a model where, in addition to physical processes, zooplankton package MP into faecal pellets that are then egested into the water column. The laboratory experiments showed that MP settling velocities increased from ~5 × 10
    MeSH term(s) Animals ; Lakes ; Microplastics ; Plastics ; Ecosystem ; Zooplankton ; Water ; Water Pollutants, Chemical
    Chemical Substances Microplastics ; Plastics ; Water (059QF0KO0R) ; Water Pollutants, Chemical
    Language English
    Publishing date 2023-05-20
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2023.164293
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Effects of a Technical Solution on Stress of Surgical Staff in Operating Theatres.

    Lehrke, Jan / Boos, Margarete / Cordes, Andreas / Leitsmann, Conrad / Friedrich, Martin

    The Thoracic and cardiovascular surgeon

    2022  Volume 70, Issue 5, Page(s) 392–400

    Abstract: Background: Noise in operating theaters (OT) exceeds safety standards with detrimental effects on the health and performance of OT crews as well as patient safety. One of the reasons for these effects is the stress response to noise, which could be ... ...

    Abstract Background: Noise in operating theaters (OT) exceeds safety standards with detrimental effects on the health and performance of OT crews as well as patient safety. One of the reasons for these effects is the stress response to noise, which could be minimized by the Silent Operating Theater Optimisation System (SOTOS), a noise-reductive headset solution.
    Methods: This study evaluates the effects of the SOTOS on the stress perceived by OT crew members, operationalized through
    Findings: Eighty-one OT workers were investigated. The linear multilevel models revealed significant interactions between treatment and time of measurement on stress level (
    Interpretation: An SOTOS-effect was confirmed: the development of stress over the course of an operation was beneficially modified by the SOTOS. Both surgery types are perceived as similarly stressful, and the staff benefits equally strongly from the intervention in both settings.
    MeSH term(s) Germany ; Humans ; Operating Rooms ; Patient Safety ; Treatment Outcome
    Language English
    Publishing date 2022-02-02
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 800050-5
    ISSN 1439-1902 ; 0171-6425 ; 0946-4778 ; 0172-6137
    ISSN (online) 1439-1902
    ISSN 0171-6425 ; 0946-4778 ; 0172-6137
    DOI 10.1055/s-0041-1741059
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Increase in the level of β-HCG after uterine artery embolization in the context of partial molar pregnancy: A case report.

    Light-Olson, Hannah / Khanna, Caroline / Brown, Alaina J / Voutsinas, Nicholas / Boos, Elise W

    Case reports in women's health

    2023  Volume 39, Page(s) e00552

    Abstract: This report documents the case of a patient with a previously diagnosed partial molar pregnancy evacuated by dilation and suction curettage with appropriately declining post-operative levels of beta-human chorionic gonadotropin (beta-hCG), who, one month ...

    Abstract This report documents the case of a patient with a previously diagnosed partial molar pregnancy evacuated by dilation and suction curettage with appropriately declining post-operative levels of beta-human chorionic gonadotropin (beta-hCG), who, one month later, underwent uterine artery embolization in the setting of acute bleeding and imaging concerning for arteriovenous malformation. After embolization, beta-hCG levels increased, prompting concern for gestational trophoblastic neoplasia and referral to gynecologic oncology. With further workup, the elevation was found to be transient and benign - a phenomenon not previously described.
    Language English
    Publishing date 2023-10-04
    Publishing country Netherlands
    Document type Case Reports
    ZDB-ID 2800286-6
    ISSN 2214-9112 ; 2214-9112
    ISSN (online) 2214-9112
    ISSN 2214-9112
    DOI 10.1016/j.crwh.2023.e00552
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Relationship between combat-related traumatic injury and ultrashort term heart rate variability in a UK military cohort: findings from the ADVANCE study.

    Maqsood, Rabeea / Schofield, S / Bennett, A N / Bull, A Mj / Fear, N T / Cullinan, P / Khattab, A / Boos, C J

    BMJ military health

    2023  

    Abstract: Introduction: Combat-related traumatic injury (CRTI) has been linked to an increased cardiovascular disease (CVD) risk. The long-term impact of CRTI on heart rate variability (HRV)-a robust CVD risk marker-has not been explored. This study investigated ... ...

    Abstract Introduction: Combat-related traumatic injury (CRTI) has been linked to an increased cardiovascular disease (CVD) risk. The long-term impact of CRTI on heart rate variability (HRV)-a robust CVD risk marker-has not been explored. This study investigated the relationship between CRTI, the mechanism of injury and injury severity on HRV.
    Methods: This was an analysis of baseline data from the ArmeD SerVices TrAuma and RehabilitatioN OutComE (ADVANCE) prospective cohort study. The sample consisted of UK servicemen with CRTI sustained during deployment (Afghanistan, 2003-2014) and an uninjured comparison group who were frequency matched to the injured group based on age, rank, deployment period and role in theatre. Root mean square of successive differences (RMSSD) was measured as a measure of ultrashort term HRV via <16 s continuous recording of the femoral arterial pulse waveform signal (Vicorder). Other measures included injury severity (New Injury Severity Scores (NISS)) and injury mechanism.
    Results: Overall, 862 participants aged 33.9±5.4 years were included, of whom 428 (49.6%) were injured and 434 (50.3%) were uninjured. The mean time from injury/deployment to assessment was 7.91±2.05 years. The median (IQR) NISS for those injured was 12 (6-27) with blast being the predominant injury mechanism (76.8%). The median (IQR) RMSSD was significantly lower in the injured versus the uninjured (39.47 ms (27.77-59.77) vs 46.22 ms (31.14-67.84), p<0.001). Using multiple linear regression (adjusting for age, rank, ethnicity and time from injury), geometric mean ratio (GMR) was reported. CRTI was associated with a 13% lower RMSSD versus the uninjured group (GMR 0.87, 95% CI 0.80-0.94, p<0.001). A higher injury severity (NISS ≥25) (GMR 0.78, 95% CI 0.69-0.89, p<0.001) and blast injury (GMR 0.86, 95% CI 0.79-0.93, p<0.001) were also independently associated with lower RMSSD.
    Conclusion: These results suggest an inverse association between CRTI, higher severity and blast injury with HRV. Longitudinal studies and examination of potential mediating factors in this CRTI-HRV relationship are needed.
    Language English
    Publishing date 2023-03-29
    Publishing country England
    Document type Journal Article
    ZDB-ID 3011686-7
    ISSN 2633-3775 ; 2633-3767
    ISSN (online) 2633-3775
    ISSN 2633-3767
    DOI 10.1136/military-2022-002316
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Hypothermia for cardiogenic encephalopathy in neonates with dextro-transposition of the great arteries.

    Boos, Vinzenz / Bührer, Christoph / Photiadis, Joachim / Berger, Felix

    Interactive cardiovascular and thoracic surgery

    2020  Volume 32, Issue 1, Page(s) 130–136

    Abstract: Objectives: Neonates with dextro-transposition of the great arteries (d-TGA) may experience rapid haemodynamic deterioration and profound hypoxaemia after birth. We report on d-TGA patients with severe acidosis, encephalopathy and their treatment with ... ...

    Abstract Objectives: Neonates with dextro-transposition of the great arteries (d-TGA) may experience rapid haemodynamic deterioration and profound hypoxaemia after birth. We report on d-TGA patients with severe acidosis, encephalopathy and their treatment with systemic hypothermia.
    Methods: This study is a single-centre retrospective cohort analysis of newborns with d-TGA.
    Results: Ninety-five patients (gestational age ≥35 weeks) with d-TGA and intended arterial switch operation were included. Ten infants (10.5%) with umbilical arterial blood pH > 7.10 experienced profound acidosis (pH < 7.00) within the first 2 h of life. Six of these patients displayed signs of encephalopathy and received therapeutic hypothermia. Apgar scores at 5 min independently predicted the development of neonatal encephalopathy during postnatal transition (unit Odds Ratio 0.17, 95% confidence interval 0.06-0.49, P = 0.001). Infants treated with hypothermia had a more severe preoperative course and required more often mechanical ventilation (100% vs 35%, P = 0.003), treatment with inhaled nitric oxide (50% vs 2.4%, P = 0.002) and inotropic support (67% vs 3.5%, P < 0.001), as compared to non-acidotic controls. The median age at cardiac surgery was 12 (range 6-14) days in cooled infants and 8 (4-59) days in controls (P = 0.088). Postoperative morbidity and total duration of hospitalization were not increased in infants receiving preoperative hypothermia. Mortality in newborns with severe preoperative acidosis was zero.
    Conclusions: Newborn infants with d-TGA have a substantial risk for profound acidosis during the first hours of life. Systemic hypothermia for encephalopathic patients may delay corrective surgery without compromising perioperative outcomes.
    MeSH term(s) Arteries/abnormalities ; Brain Diseases/therapy ; Cohort Studies ; Female ; Gestational Age ; Humans ; Hypothermia, Induced ; Infant ; Infant, Newborn ; Male ; Retrospective Studies ; Transposition of Great Vessels/surgery ; Treatment Outcome
    Language English
    Publishing date 2020-11-20
    Publishing country England
    Document type Journal Article
    ZDB-ID 2095298-3
    ISSN 1569-9285 ; 1569-9293
    ISSN (online) 1569-9285
    ISSN 1569-9293
    DOI 10.1093/icvts/ivaa235
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  7. Article ; Online: Typical doses and typical values for fluoroscopic diagnostic and interventional procedures.

    Tristram, Juliana / Steuwe, Andrea / Kröpil, Feride / Thomas, Christoph / Rubbert, Christian / Antoch, Gerald / Boos, Johannes

    Journal of radiological protection : official journal of the Society for Radiological Protection

    2022  Volume 42, Issue 2

    Abstract: To implement typical doses (TD) and typical values (TV) for fluoroscopic diagnostic and interventional procedures. A total of 3811 fluoroscopic procedures performed within 34 months on three devices were included in this retrospective study. Dose-, ... ...

    Abstract To implement typical doses (TD) and typical values (TV) for fluoroscopic diagnostic and interventional procedures. A total of 3811 fluoroscopic procedures performed within 34 months on three devices were included in this retrospective study. Dose-, patient- and procedure-related information were extracted using the institutional dose management system (DMS). TD/TV were defined as median dose and calculated for the five most frequent procedures per device for dose area product (DAP), cumulative air kerma (CAK) and fluoroscopy time (FT). National diagnostic reference levels and other single facility studies were compared to our results. Additionally, the five procedures with the highest doses of each device were analysed. To evaluate the data coverage of the DMS compared to the picture archiving and communication system (PACS), procedure lists were extracted from the PACS and compared to the procedure information extracted from the DMS. TD/TV for 15 procedures were implemented. Among all devices, TD for DAP ranged between 0.6 Gycm
    MeSH term(s) Fluoroscopy ; Humans ; Radiation Dosage ; Radiography, Interventional ; Retrospective Studies
    Language English
    Publishing date 2022-03-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 639411-5
    ISSN 1361-6498 ; 0952-4746
    ISSN (online) 1361-6498
    ISSN 0952-4746
    DOI 10.1088/1361-6498/ac5294
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  8. Article ; Online: Pain after combat injury in male UK military personnel deployed to Afghanistan.

    Vollert, Jan / Kumar, Alexander / Coady, Emma C / Cullinan, Paul / Dyball, Daniel / Fear, Nicola T / Gan, Zoe / Miller, Eleanor F / Sprinckmoller, Stefan / Schofield, Suzie / Bennett, Alexander / Bull, Anthony M J / Boos, Christopher J / Rice, Andrew S C / Kemp, Harriet I

    British journal of anaesthesia

    2024  

    Abstract: Background: Chronic pain after injury poses a serious health burden. As a result of advances in medical technology, ever more military personnel survive severe combat injuries, but long-term pain outcomes are unknown. We aimed to assess rates of pain in ...

    Abstract Background: Chronic pain after injury poses a serious health burden. As a result of advances in medical technology, ever more military personnel survive severe combat injuries, but long-term pain outcomes are unknown. We aimed to assess rates of pain in a representative sample of UK military personnel with and without combat injuries.
    Methods: We used data from the ADVANCE cohort study (ISRCTN57285353). Individuals deployed as UK armed forces to Afghanistan were recruited to include those with physical combat injuries, and a frequency-matched uninjured comparison group. Participants completed self-reported questionnaires, including 'overall' pain intensity and self-assessment of post-traumatic stress disorder, anxiety, and depression.
    Results: A total of 579 participants with combat injury, including 161 with amputations, and 565 uninjured participants were included in the analysis (median 8 yr since injury/deployment). Frequency of moderate or severe pain was 18% (n=202), and was higher in the injured group (n=140, 24%) compared with the uninjured group (n=62, 11%, relative risk: 1.1, 95% confidence interval [CI]: 1.0-1.2, P<0.001), and lower in the amputation injury subgroup (n=31, 19%) compared with the non-amputation injury subgroup (n=109, 26%, relative risk: 0.9, 95% CI: 0.9-1.0, P=0.034). Presence of at least moderate pain was associated with higher rates of post-traumatic stress (RR: 3.7, 95% CI: 2.7-5.0), anxiety (RR: 3.2, 95% CI: 2.4-4.3), and depression (RR: 3.4, 95% CI: 2.7-4.5) after accounting for injury.
    Conclusion: Combat injury, but not amputation, was associated with a higher frequency of moderate to severe pain intensity in this cohort, and pain was associated with adverse mental health outcomes.
    Language English
    Publishing date 2024-03-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 80074-0
    ISSN 1471-6771 ; 0007-0912
    ISSN (online) 1471-6771
    ISSN 0007-0912
    DOI 10.1016/j.bja.2024.02.019
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  9. Article ; Online: The Influence of Physical and Mental Health Mediators on the Relationship Between Combat-Related Traumatic Injury and Ultra-Short-Term Heart Rate Variability in a U.K. Military Cohort: A Structural Equation Modeling Approach.

    Maqsood, Rabeea / Schofield, Susie / Bennett, Alexander N / Khattab, Ahmed / Clark, Carol / Bull, Anthony M J / Fear, Nicola T / Boos, Christopher J

    Military medicine

    2023  Volume 189, Issue 3-4, Page(s) e758–e765

    Abstract: Introduction: Combat-related traumatic injury (CRTI) adversely affects heart rate variability (HRV). The mediating effect of mental and physical health factors on the relationship between CRTI, its severity and HRV has not been previously studied and ... ...

    Abstract Introduction: Combat-related traumatic injury (CRTI) adversely affects heart rate variability (HRV). The mediating effect of mental and physical health factors on the relationship between CRTI, its severity and HRV has not been previously studied and investigated.
    Materials and methods: A cross-sectional mediation analysis of the ArmeD SerVices TrAuma and RehabilitatioN OutComE (ADVANCE) prospective cohort study was performed. The sample consisted of injured and uninjured British male servicemen who were frequency-matched based on their age, rank, role-in-theater, and deployment to Afghanistan (2003-2014). CRTI and injury severity (the New Injury Severity Scores [NISS] [NISS < 25 and NISS ≥ 25]) were included as exposure variables. HRV was quantified using the root mean square of successive differences (RMSSD) obtained using pulse waveform analysis. Depression and anxiety mediators were quantified using the Patient Health Questionnaire and Generalized Anxiety Disorder, respectively. Body mass index and the 6-minute walk test (6MWT) represented physical health measures. Two mediation pathways between exposure and outcome variables were examined in comparison with the uninjured group using structural equation modeling.
    Results: Of 862 servicemen, 428 were injured and 434 were uninjured with the mean age at assessment of 33.9 ± 5.4 (range 23-59) years. Structural equation modeling revealed that depression, anxiety, and body mass index did not significantly mediate the relationship between injury/injury severity and RMSSD. However, the 6MWT significantly mediated the relationship between CRTI and RMSSD (27% mediation). The indirect effect of 6MWT on the relationship between injury severity (NISS ≥ 25 vs. uninjured) and RMSSD was -0.06 (95% CI: -0.12, -0.00, P < .05).
    Conclusions: The findings suggest that greater physical function may improve HRV following CRTI. Longitudinal studies are warranted to further validate these findings.
    MeSH term(s) Humans ; Male ; Young Adult ; Adult ; Middle Aged ; Military Personnel ; Mental Health ; Heart Rate/physiology ; Prospective Studies ; Cross-Sectional Studies ; Latent Class Analysis
    Language English
    Publishing date 2023-09-01
    Publishing country England
    Document type Journal Article
    ZDB-ID 391061-1
    ISSN 1930-613X ; 0026-4075
    ISSN (online) 1930-613X
    ISSN 0026-4075
    DOI 10.1093/milmed/usad341
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  10. Article ; Online: Iron-catalyzed stereoselective C-H alkylation for simultaneous construction of C-N axial and C-central chirality.

    Zhang, Zi-Jing / Jacob, Nicolas / Bhatia, Shilpa / Boos, Philipp / Chen, Xinran / DeMuth, Joshua C / Messinis, Antonis M / Jei, Becky Bongsuiru / Oliveira, João C A / Radović, Aleksa / Neidig, Michael L / Wencel-Delord, Joanna / Ackermann, Lutz

    Nature communications

    2024  Volume 15, Issue 1, Page(s) 3503

    Abstract: ... we herein disclose a versatile C-H alkylation using a non-toxic, low-cost iron catalyst for the synthesis ... represented by noncovalent interaction for the concomitant generation of C-N axial chirality and C-stereogenic ...

    Abstract The assembly of chiral molecules with multiple stereogenic elements is challenging, and, despite of indisputable advances, largely limited to toxic, cost-intensive and precious metal catalysts. In sharp contrast, we herein disclose a versatile C-H alkylation using a non-toxic, low-cost iron catalyst for the synthesis of substituted indoles with two chiral elements. The key for achieving excellent diastereo- and enantioselectivity was substitution on a chiral N-heterocyclic carbene ligand providing steric hindrance and extra represented by noncovalent interaction for the concomitant generation of C-N axial chirality and C-stereogenic center. Experimental and computational mechanistic studies have unraveled the origin of the catalytic efficacy and stereoselectivity.
    Language English
    Publishing date 2024-04-25
    Publishing country England
    Document type Journal Article
    ZDB-ID 2553671-0
    ISSN 2041-1723 ; 2041-1723
    ISSN (online) 2041-1723
    ISSN 2041-1723
    DOI 10.1038/s41467-024-47589-7
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