Qualitative and quantitative detection of Chlamydophila pneumoniae DNA in cerebrospinal fluid from multiple sclerosis patients and controls. by Yi-Wei Tang, Subramaniam Sriram, Haijing Li, Song-yi Yao, Shufang Meng, William M Mitchell, Charles W Stratton

“…We developed and validated a qualitative colorimetric microtiter plate-based PCR assay (PCR-EIA) and a real-time quantitative PCR assay (TaqMan) for detection of C. pneumoniae DNA in CSF specimens from MS patients and controls. Compared to a touchdown nested-PCR assay, the sensitivity, specificity, and concordance of the PCR-EIA assay were 88.5%, 93.2%, and 90.5%, respectively, on a total of 137 CSF specimens. …”
Get full text

Effect of Jaw Clenching on Balance Recovery: Dynamic Stability and Lower Extremity Joint Kinematics after Forward Loss of Balance by Steffen eRinghof, Thorsten eStein, Daniel eHellmann, Hans Jürgen Schindler, Hans Jürgen Schindler, Wolfgang ePotthast, Wolfgang ePotthast

“…Notwithstanding this, the present study also revealed that bite forces under both conditions significantly increased from subjects’ release to touchdown of the recovery limb. Clenching the jaw, hence, seems to be part of a common physiological repertoire used to improve motor performance.…”
Get full text

A bio-inspired methodology of automatic perching for unmanned aerial vehicles by Chi, Wanchao

“…Fourthly, a two-dimensional perching model of quadrotors covering dynamic interaction with perch is established based on analysis of the balancing procedure of parrots after touchdown. Simulation validates the applicability of the model to biomimetic perching. …”
Get full text

The DREAMS experiment flown on the ExoMars 2016 mission for the study of Martian environment during the dust storm season by Bettanini, C, Esposito, F, Debei, S, Molfese, C, Colombatti, G, Aboudan, A, Brucato, JR, Cortecchia, F, Di Achille, G, Guizzo, GP, Friso, E, Ferri, F, Marty, L, Mennella, V, Molinaro, R, Schipani, P, Silvestro, S, Mugnuolo, R, Pirrotta, S, Marchetti, E, Harri, A-M, Montmessin, F, Wilson, C, Rodriguez, I, Abbaki, S, Apestigue, V, Bellucci, G, Berthelier, J-J, Calcutt, SB, Forget, F, Genzer, M, Gilbert, P, Haukka, H, Jimenez, JJ, Jimenez, S, Josset, J-L, Karatekin, O, Landis, G, Lorenz, R, Martinez, J, Moehlmann, D, Moirin, D, Palomba, E, Patel, M, Pommereau, J-P, Popa, CI, Rafkin, S, Rannou, P, Renno, NO, Schmidt, W, Simoes, F, Spiga, A, Valero, F, Vazquez, L, Vivat, F, Witasse, O, Ieee, Team, IDREAMS

“…This proved the nominal performance of all DREAMS hardware before touchdown demonstrating the highest TRL of the unit for future missions. …”

Multiple antibiotic-resistant Salmonella enterica serovars Enteritidis and Typhimurium in ready-to-eat battered street foods, and their survival under simulated gastric fluid and m... by Sandrasaigaran, P., Kuan, C. H., Radu, S., U. Z. Abidin, U. F., Rukayadi, Y., New, C. Y., Hasan, H.

“…Food samples (n = 312) were homogenized, prepared in triplicate tubes (10−1, 10−2, 10−3), and subjected to a combined most probable number (MPN) statistical analysis and multiplex-touchdown PCR amplification for NTS detection. The tubes with bacterial growth were cultured on Xylose Lysine Deoxycholate (XLD) agar, and isolated NTS were subjected to antibiotic susceptibility (disk diffusion) and survival tests in SGF (pH: 2.0, 3.0, 4.0, and 7.0) and microwave heating. …”

Two-dimensional tension analysis of subsea cable using minimization without gradient based technique by Jasman, Nur Azira

“…However, this conventional configuration produces a large hang-off load on the subsea cables which could potentially cause buckling issues at touchdown point. An alternative configuration is created by considering the use of buoyancy module attached to certain parts of the subsea cable in order to reduce stress and avoid failure. …”
Get full text

Return of 4U 1730–22 after 49 yr Silence: The Peculiar Burst Properties of the 2021/2022 Outbursts Observed by Insight-HXMT by Yu-Peng Chen, Shu Zhang, Long Ji, Shuang-Nan Zhang, Peng-Ju Wang, Ling-Da Kong, Zhi Chang, Jing-Qiang Peng, Qing-Cang Shui, Jian Li, Zhao-Sheng Li, Lian Tao, Ming-Yu Ge, Jin-Lu Qu

“…In addition, based on the fluxes of PRE bursts at their touchdown times, we derive a distance estimation as 9.0–12.4 kpc.…”
Get full text

Optimal Drop Height in Prepubertal Boys Is Revealed by the Performance in Squat Jump by Eleni Bassa, Ilias Adamopoulos, Vassilios Panoutsakopoulos, Anthi Xenofondos, Athanasios Yannakos, Christos Galazoulas, Dimitrios A. Patikas

“…Boys demonstrated longer total contact time, lower angular velocity and vGRF during the propulsive phase, as well as smaller knee flexion at touchdown and lower reactive strength index. vGRF in DJ₇₅ and DJ₁₀₀ was lower than in DJ₁₂₅ and DJ₁₅₀. …”
Get full text

Biomechanical and neuromuscular strategies on backward somersault landing in artistic gymnastics: A case study by Chengliang Wu, Weiya Hao, Wei He, Xiaofei Xiao, Xuhong Li, Wei Sun

“…Bilateral lower-limb joint angles, vertical ground reaction force (vGRF), impulse, joint reaction force, joint torque, power, work, stiffness and electromyogram (EMG) of the rectus femoris, biceps femoris, tibialis anterior, and lateral gastrocnemius were presented during initial (touchdown to peak vGRF) and terminal impact-phases of landing (peak vGRF to vGRF equaling to body weight). …”
Get full text

The ETNA mission concept: Assessing the habitability of an active ocean world by Ariel N. Deutsch, Ariel N. Deutsch, Paolo Panicucci, Laura I. Tenelanda-Osorio, Victoria Da Poian, Yun H. Cho, Chandrakanth Venigalla, Thasshwin Mathanlal, Emiliano Castillo Specia, Graciela González Peytaví, Andrea Guarriello, Onalli Gunasekara, Lewis Jones, Mariya Krasteva, Jennifer Pouplin, Nicole Villanueva, Sam Zaref

“…Here we present the Enceladus Touchdown aNalyzing Astrobiology (ETNA) mission, a concept designed during the 2019 Caltech Space Challenge. …”
Get full text

Interpretable tracking and detection of unstable approaches using tunnel Gaussian process by Goh, Sim Kuan, Singh, Narendra Pratap, Lim, Zhi Jun, Alam, Sameer

“…Empirical results show that anomalous scores were in line with the factors (as reported to ATCOs) in all go-around data in the test dataset, between 0.5 NM (missed approach point) to 7.6 NM from the touchdown threshold, and provides better probabilistic insights of non-compliance, comparing to existing work. …”
Get full text

Conservative Management and Biological Treatment Strategies for Osteochondral Lesions of the Talus

“…In the case of conservative management, 81% (strong consensus) voted in favor of the optimal protocol for an acute non-displaced lesion being immobilization for 4-6 weeks with touchdown weightbearing, with non-steroidal anti-inflammatory drugs only prescribed in cases of significant pain and swelling. …”
Get full text

Antimicrobial Susceptibility, Biotypes and Phylotypes of Clinical Cutibacterium (Formerly Propionibacterium) acnes Strains Isolated from Acne Patients: An Observational Study by Nanxue Zhang, Ruoyue Yuan, Kevin Z. Xin, Zhong Lu, Ying Ma

“…The agar dilution method was conducted to determine the minimum inhibitory concentrations (MICs) of C. acnes, the fermentation test to identify biotypes and then multiplex touchdown polymerase chain reaction (PCR) to identify phylotypes. …”
Get full text

The Association Between Hip-Shoulder Separation Angles and Technique Characteristics in World-Class High Jumpers by Gareth Nicholson, Nils Jongerius, Nils Jongerius, Catherine B. Tucker, Aaron Thomas, Stéphane Merlino, Athanassios Bissas, Athanassios Bissas, Athanassios Bissas

“…H-Ssep was quantified at touchdown (TD) and take-off (TO) following manual digitizing (SIMI motion) and a number of other common biomechanical parameters were computed. …”
Get full text

Differences in run-up, take-off, and flight characteristics: successful vs. unsuccessful high jump attempts at the IAAF world championships by Gareth Nicholson, Gaspar Epro, Stéphane Merlino, Josh Walker, Athanassios Bissas, Athanassios Bissas

“…During SU jumps, athletes raised the center of mass to a greater extent (p < 0.01) from take-off. Touchdown in SU jumps was characterized by a faster anteroposterior velocity (p < 0.05), lower backward lean (p < 0.05), and changes in joint angles for the stance and trail limbs (p < 0.05). …”
Get full text

Mutant Allele of CD44 (rs8193C>T) and Pum2 Regulatory Element as A Prognosis Factor of Prostate Neoplasms: A Case-Control and In Silico Studies by Mohammadkazem Heydari, Abasalt Hosseinzadeh Colagar, Emadoddin Moudi

“…Aim of the study is the effect of mutant allele of CD44 (rs8193C>T) and Pum2regulatory element as a prognosis factor of prostate neoplasms: a case-control and in silico studies in the Mazandaranprovince-Iran.Materials and MethodsIn a case-control study, CD44-rs8193C>T genotyping of the 420 prostate neoplasms (210benign prostatic hyperplasia (BPH) patients and 210 prostate cancer patients) and 150 healthy samples are performedby the touchdown polymerase chain reaction with confronting two-pair primers (PCR-CTPP) method. …”
Get full text

Kinematic and Temporal Differences Between World-Class Men's and Women's Hurdling Techniques by Athanassios Bissas, Athanassios Bissas, Athanassios Bissas, Giorgos P. Paradisis, Brian Hanley, Stéphane Merlino, Josh Walker

“…Video files were continuously digitized manually from touchdown before hurdle clearance to toe-off after landing around the sixth hurdle for men and the fifth hurdle for women, and sex-based comparisons were made at key discrete time points using independent t-tests, and throughout the entire hurdle phase using statistical parametric mapping. …”
Get full text

Simulation of the aircraft parachuting process to the runway during landing by Liudmyla Kapitanova, Viktor Riabkov, Danylo Kirnoson

“…Based on the results of experimental studies, the proposed mathematical model of the aircraft in landing configuration and the simulation model of participation in the landing of shock-absorbing landing gear systems quite reliably (compared to experimental data) estimate the aircraft’s movement at the moment of its touchdown and subsequent roll. This means that mathematical modeling can avoid repeated bounces during landing, ensure stability of longitudinal aircraft movement, reduce the length of the unbraked roll, and decrease the required runway length during aircraft landing. …”
Get full text

Tarmac Delay Policies: A Passenger-Centric Analysis by Yan, Chiwei, Vaze, Vikrant, Vanderboll, Allison, Barnhart, Cynthia

“…The Tarmac Delay Rule stipulates that aircraft lift-off, or an opportunity for passengers to deplane, must occur no later than three hours after the cabin door closure at the gate of the departure airport; and that an opportunity for passengers to deplane must occur no later than three hours after the touchdown at the arrival airport. The Tarmac Delay Rule aims to protect enplaned passengers on commercial aircraft from excessively long delays on the tarmac upon taxi-out or taxi-in, and monetarily penalizes airlines that violate the stipulated three-hour tarmac time limit. …”
Get full text

Analytical protocols for Phobos regolith samples returned by the Martian Moons eXploration (MMX) mission by Wataru Fujiya, Yoshihiro Furukawa, Haruna Sugahara, Mizuho Koike, Ken-ichi Bajo, Nancy L. Chabot, Yayoi N. Miura, Frederic Moynier, Sara S. Russell, Shogo Tachibana, Yoshinori Takano, Tomohiro Usui, Michael E. Zolensky

“…Abstract Japan Aerospace Exploration Agency (JAXA) will launch a spacecraft in 2024 for a sample return mission from Phobos (Martian Moons eXploration: MMX). Touchdown operations are planned to be performed twice at different landing sites on the Phobos surface to collect > 10 g of the Phobos surface materials with coring and pneumatic sampling systems on board. …”
Get full text