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Showing 1 to 12 of 58 entries
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Temporal patterns of blood flow and nitric oxide synthase expression affect macrophage accumulation and proliferation during collateral growth.

Journal of angiogenesis research

Sager HB, Middendorff R, Rauche K, Weil J, Lieb W, Schunkert H, Ito WD.
PMID: 20843382
J Angiogenes Res. 2010 Sep 16;2:18. doi: 10.1186/2040-2384-2-18.

BACKGROUND: The involvement of collateral blood flow/fluid shear stress, nitric oxide (NO), and macrophages during collateral growth (arteriogenesis) is established, but their interplay remains paradoxical.METHODS: In order to further elucidate the "fluid shear stress/NO/macrophage" paradox, we investigated the time...

Exploring dominant discourses: creating spaces to find voice and cultural identity.

Journal of cultural diversity

Lee BY, Kozak MS, Nancoo CP, Chen HM, Middendorf K, Gale J.
PMID: 23614177
J Cult Divers. 2013;20(1):21-9.

This paper presents the experiences of five women's (of three nationalities and different ethnic backgrounds) challenging dominant cultural discourses and finding their own voice. Starting from a class assignment and individual papers, the five women engaged in a participatory...

Contractility of the epididymal duct: function, regulation and potential drug effects.

Reproduction (Cambridge, England)

Elfgen V, Mietens A, Mewe M, Hau T, Middendorff R.
PMID: 29891616
Reproduction. 2018 Oct 01;156(4):R125-R141. doi: 10.1530/REP-17-0754.

During their transit through the epididymis, spermatozoa mature and acquire motility and fertilizing capacity. The smooth muscle cells (SMCs) of the epididymal duct are thought to be responsible for the adequate transport of spermatozoa. Thus, precise regulation of SMC...

Fluorescence Microscopy of Superplasticizers in Cementitious Systems: Applications and Challenges.

Materials (Basel, Switzerland)

Arend J, Wetzel A, Middendorf B.
PMID: 32847016
Materials (Basel). 2020 Aug 24;13(17). doi: 10.3390/ma13173733.

In addition to the desired plasticizing effect, superplasticizers used in high and ultra-high performance concretes (UHPC) influence the chemical system of the pastes and for example retardation of the cement hydration occurs. Thus, superplasticizers have to be chosen wisely...

Adsorption of PCE in alkali-activated materials analysed by fluorescence microscopy.

Journal of microscopy

Wetzel A, Link J, Middendorf B.
PMID: 34661297
J Microsc. 2021 Oct 18; doi: 10.1111/jmi.13066. Epub 2021 Oct 18.

The realisation of high-performance concrete mixtures requires the use of superplasticizers to achieve a low water/binder ratio and thus high strengths. Polycarboxylate ethers (PCE) are mostly used as superplasticizers. The effectiveness of these superplasticizers depends on their chemical structure,...

Determination of Suitable Imaging Techniques for the Investigation of the Bonding Zones of Asphalt Layers.

Materials (Basel, Switzerland)

Middendorf M, Umbach C, Böhm S, Middendorf B.
PMID: 34947154
Materials (Basel). 2021 Dec 09;14(24). doi: 10.3390/ma14247556.

The material behavior of asphalt depends on its composition of aggregate, bitumen, and air voids. Asphalt pavements consist of multiple layers, making the interaction of the materials at the layer boundary important so that any stresses that occur can...

Depth-dependent patterns in shear modulus of temporomandibular joint cartilage correspond to tissue structure and anatomic location.

Journal of biomechanics

Gologorsky CJ, Middendorf JM, Cohen I, Bonassar LJ.
PMID: 34706301
J Biomech. 2021 Dec 02;129:110815. doi: 10.1016/j.jbiomech.2021.110815. Epub 2021 Oct 15.

To fully understand TMJ cartilage degeneration and appropriate repair mechanisms, it is critical to understand the native structure-mechanics relationships of TMJ cartilage and any local variation that may occur in the tissue. Here, we used confocal elastography and digital...

Usability of an At-Home Anterior Nares SARS-CoV-2 RT-PCR Sample Collection Kit: Human Factors Feasibility Study.

JMIR human factors

Strong LE, Middendorf I, Turner M, Edwards V DK, Sama V, Mou J, Adams KC.
PMID: 34609947
JMIR Hum Factors. 2021 Dec 14;8(4):e29234. doi: 10.2196/29234.

BACKGROUND: Readily available testing for SARS-CoV-2 is necessary to mitigate COVID-19 disease outbreaks. At-home collection kits, in which samples are self-collected without requiring a laboratory or clinic visit and sent to an external laboratory for testing, can provide convenient...

Fluorescence Microscopic Investigations of the Retarding Effect of Superplasticizers in Cementitious Systems of UHPC.

Materials (Basel, Switzerland)

Arend J, Wetzel A, Middendorf B.
PMID: 32120807
Materials (Basel). 2020 Feb 27;13(5). doi: 10.3390/ma13051057.

The adsorption of superplasticizer molecules to particle surfaces in cementitious systems is a very important aspect for the desired liquefaction of pastes and concretes. This way, the comb shaped polymers shield attractive forces between the particles and induce a...

Maturation characteristics of Rubus pennsylvanicus fruit: are black and red the same?.

Oecologia

Poston ME, Middendorf GA.
PMID: 28312317
Oecologia. 1988 Oct;77(1):69-72. doi: 10.1007/BF00380927.

Fruit of the blackberry, Rubus pennsylvanicus Poir. (Rosaceae), were examined to determine variation in maturation characteristics. Maturation timing and rate varied greatly among individual fruits, resulting in a bi-colored fruiting display comprised largely of two maturation stages, pre-ripe (salmon...

Immunocrit, serum amino acid concentrations and growth performance in light and heavy piglets depending on sow's farrowing system.

Porcine health management

Schnier S, Middendorf L, Janssen H, Brüning C, Rohn K, Visscher C.
PMID: 31223484
Porcine Health Manag. 2019 Jun 14;5:14. doi: 10.1186/s40813-019-0121-1. eCollection 2019.

BACKGROUND: The conventional farrowing crate is criticised due to the limited mobility of sows during farrowing and lactation. The present study aims to investigate the effects of three different farrowing systems on the performance of suckling neonates on the...

Real-time use of the iPad by third-year medical students for clinical decision support and learning: a mixed methods study.

Journal of community hospital internal medicine perspectives

Nuss MA, Hill JR, Cervero RM, Gaines JK, Middendorf BF.
PMID: 25317266
J Community Hosp Intern Med Perspect. 2014 Sep 29;4(4). doi: 10.3402/jchimp.v4.25184. eCollection 2014.

PURPOSE: Despite widespread use of mobile technology in medical education, medical students' use of mobile technology for clinical decision support and learning is not well understood. Three key questions were explored in this extensive mixed methods study: 1) how...

Showing 1 to 12 of 58 entries