The infusion of ex vivo, interleukin-15 and -21-activated donor NK cells after haploidentical HCT in high-risk AML and MDS patients-a randomized trial.

Clinical effect of donor-derived natural killer cell infusion (DNKI) after HLA-haploidentical hematopoietic cell transplantation (HCT) was evaluated in high-risk myeloid malignancy in phase 2, randomized trial. Seventy-six evaluable patients (aged 21-70 years) were randomized to receive DNKI (N = 40) or not (N = 36) after haploidentical HCT. For the HCT conditioning, busulfan, fludarabine, and anti-thymocyte globulin were administered. DNKI was given twice 13 and 20 days after HCT. Four patients in the DNKI group failed to receive DNKI. In the remaining 36 patients, median DNKI doses were 1.0 × 108/kg and 1.4 × 108/kg on days 13 and 20, respectively. Intention-to-treat analysis showed a lower disease progression for the DNKI group (30-month cumulative incidence, 35% vs 61%, P = 0.040; subdistribution hazard ratio, 0.50). Furthermore, at 3 months after HCT, the DNKI patients showed a 1.8- and 2.6-fold higher median absolute blood count of NK and T cells, respectively. scRNA-sequencing analysis in seven study patients showed that there was a marked increase in memory-like NK cells in DNKI patients which, in turn, expanded the CD8+ effector-memory T cells. In high-risk myeloid malignancy, DNKI after haploidentical HCT reduced disease progression. This enhanced graft-vs-leukemia effect may be related to the DNKI-induced, post-HCT expansion of NK and T cells. Clinical trial number: NCT02477787.

A uniform conditioning regimen of busulfan, fludarabine, and antithymocyte globulin for allogeneic haematopoietic cell transplantation from haploidentical family, matched sibling, or unrelated donors-A single-centre, prospective, explorative study.

In a prospective, explorative study, the donor-source difference of haploidentical family (HF), matched sibling (MS), and unrelated donors (UD) was evaluated for the outcome of haematopoietic cell transplantations (HCT) in 101 patients with acute myeloid leukaemia (AML) in complete remission (CR). To eliminate compounding effects, a uniform conditioning regimen containing antithymocyte globulin (ATG) was used. After transplantation, there was a significantly higher cumulative incidence of acute graft-versus-host disease (GVHD) in HF-HCT patients (49%, 7%, and 16% for HF-, MS- and UD-HCT respectively; p < 0.001). A quarter of acute GVHD cases observed in HF-HCT patients occurred within three days of engraftment and were characterized by diffuse skin rash, fever, weight gain, and hypoalbuminaemia. This peri-engraftment acute GVHD was not observed in MS-HCT or UD-HCT patients. Additionally, a significantly higher proportion of HF-HCT patients achieved complete donor chimaerism in the peripheral mononuclear cells at one month (88%, 46%, and 69% for HF-, MS- and UD-HCT respectively; p = 0.001). There was no significant difference in engraftment, chronic GVHD, leukaemia recurrence, non-relapse mortality, and patient survival. In patients with AML in CR who received HCT using ATG-containing conditioning, stronger donor-patient alloreactivity was observed in HF-HCT, in terms of increased acute GVHD and higher likelihood of complete donor chimaerism.

Dense Local Triplet States and Steric Shielding of a Multi-Resonance TADF Emitter Enable High-Performance Deep-Blue OLEDs.

Multi-resonance thermally activated delayed fluorescence (MR-TADF) molecules based on boron and nitrogen atoms are emerging as next-generation blue emitters for organic light-emitting diodes (OLEDs) due to their narrow emission spectra and triplet harvesting properties. However, intermolecular aggregation stemming from the planar structure of typical MR-TADF molecules that leads to concentration quenching and broadened spectra limits the utilization of the full potential of MR-TADF emitters. Herein, a deep-blue MR-TADF emitter, pBP-DABNA-Me, is developed to suppress intermolecular interactions effectively. Furthermore, photophysical investigation and theoretical calculations reveal that adding biphenyl moieties to the core body creates dense local triplet states in the vicinity of S1 and T1 energetically, letting the emitter harvest excitons efficiently. OLEDs based on pBP-DABNA-Me show a high external quantum efficiency (EQE) of 23.4% and a pure-blue emission with a Commission Internationale de L'Eclairage (CIE) coordinate of (0.132, 0.092), which are maintained even at a high doping concentration of 100 wt%. Furthermore, by incorporating a conventional TADF sensitizer, deep-blue OLEDs with a CIE value of (0.133, 0.109) and an extremely high EQE of 30.1% are realized. These findings provide insight into design strategies for developing efficient deep-blue MR-TADF emitters with fast triplet upconversion and suppressed self-aggregation.

Opening up Neat New Things: Exploring Understandings and Experiences of Social and Emotional Learning and Meaningful Physical Education Utilizing Democratic and Reflective Pedagogies.

When it comes to teaching social and affective outcomes pertaining to health and physical activity within Physical Education (PE) settings, such learning historically has been observed as manifesting itself as hoped-for-by-products rather than intentionally-taught-for curricular outcomes. The purpose of this study was to explore understandings and experiences of Social and Emotional Learning (SEL) and Meaningful Physical Education (MPE) utilizing democratic and reflective pedagogies. A qualitative case study design was implemented in an alternative high school setting in the USA across 10 months. Participants included the Teacher-Researcher (TR), one Physical Education (PE) teacher, a critical friend, two teaching assistants, and 16 ninth-grade alternative high school students aged 14-15 (eight girls/eight boys). Methods involved a TR journal, post-lesson teaching reflections, interviews, and focus groups, with inductive and deductive analysis applied. The following themes were constructed: It really made you think; making movement meaningful; being a better classmate; and doing things differently. Results demonstrate how utilizing democratic and reflective approaches grounded in social constructivist learning theory innovatively promoted SEL and MPE. It allowed students to reflect, interrogate and discuss how movement experiences inside and outside of PE influenced their pursuit of a physically active life. Participants articulated experiencing a more inclusive learning experience that challenged the purpose and subject matter of previous PE and physical activity. Teaching for SEL and MPE using common language and terminology around pre-identified and defined competencies, skills, and features drawn from these conceptual frameworks as demonstrated here, can help contribute to more concrete and uniform learning experiences within and across settings. Doing so led participants to demonstrate more holistic and broader understandings of what constituted participation in PE and physical activity, as well as how to promote and participate in meaningful movement and physical activity within and outside of school to promote healthy living. We call for further embedding of democratic and reflective pedagogies in PE teacher education and professional development that provides teachers and students with the opportunity to do so going forward.

"This Is Not Gym": Enacting Student Voice Pedagogies to Promote Social and Emotional Learning and Meaningful Physical Education.

The purpose of this study was to explore learners' experiences enacting youth/student voice pedagogies (SVP) to promote Social and Emotional Learning (SEL) and meaningful physical education (MPE) in an alternative education setting. Drawing on social constructivist learning theory in understanding and implementing a MPE approach, and a systemic framework for SEL, two research questions guided the research process: (1) How did students interpret and enact these pedagogies? (2) What contribution did the enactment of these pedagogies have in promoting SEL and MPE? This study implemented a qualitative case study design framed by a participatory action research (PAR) approach spanning 12 weeks from February to May 2021. Participants in this study included 16 ninth grade alternative high school students (eight girls/eight boys) aged 14-15 who had just returned to face-to-face learning in January 2021 for the first time following COVID-19. A range of traditional and innovative participatory qualitative research methods including focus group interviews, students' personal biographies, timelines, digital and written reflections, photovoice, and class artifacts were utilized. The Miles, Huberman, and Saldana Framework for Qualitative Data Analysis was implemented involving both deductive and inductive combinations of comparative and thematic analysis. The following themes were constructed: Making responsible decisions; unearthing and sharing mixed emotions; picturing physical activity beyond the classroom; recognizing the role of relationships; considering challenge and competence; and, pursuing meaning. Findings demonstrate how enacting SVP can lead to the development of students' SEL and MPE experiences complimenting multiple learning domains. We call for further embedding of SVP capturing students' physical activity and movement experiences inside and outside of PE in teacher education and professional development that helps teachers and their students make sense of, shape, influence, and enact more MPE and physical activity learning experiences.

Developing Korean children's physical activity health literacy: Literate, Empowered, Active, Doer program (LEAD).

PURPOSE: The purpose of this study was to describe children's experiences of the impact of LEAD (Literate, Empowered, Active, Doer) health program on their physical activity health literacy and to describe the characteristics of the LEAD health program that influenced the children's health literacy enhancement. METHODS: Six fifth grade elementary school students (three boys, three girls) were selected as participants. The data were collected from open-ended questionnaires, in-depth interviews, observation, and student journal entries. The data analysis followed the procedure of qualitative content analysis, which consisted of transcription, encoding, and creation of themes. FINDINGS: Findings revealed that the children's physical activity health literacy was enhanced in four separate manners: (a) became smarter finders of health information, (b) became active agents in sharing and applying health information, (c) valued and expanded physical activity beyond PE class, and (d) understood health as a holistic concept. Regarding program characteristics that influenced students' changes, three themes emerged: (a) providing specified contents in various physical activities to students (b) granting autonomy to students, and (c) building supportive environments for students.

Native Korean-Speaking Children Learning to Read in English: A Structural Analysis of L2-English Literacy Acquisition.

The current study investigated the potential components that affect second language (L2; English) literacy acquisition and cause-and-effect relationships of those factors to L2 reading comprehension via a structural equation model, with the recruitment of 129 4th-graders learning English as a foreign language. This study consists of two levels of literacy skills. Micro skills include phonological, orthographic processing skills, and word recognition. Macro skills comprise vocabulary knowledge and listening-/reading comprehension. Phonological and orthographic processing skills in L2 played important roles in L2 word recognition. L2 word recognition made a mediated contribution to L2 reading comprehension, while L2 vocabulary knowledge had a direct relationship with L2 listening comprehension and L2 reading comprehension. These findings suggest that sufficient phonological awareness and orthographic processing skill are important for successful English word recognition. Additionally improvement in L2 vocabulary knowledge along with L2 word recognition is significant for effective L2 listening-/reading comprehension.

Reduced-Intensity Conditioning with Busulfan, Fludarabine, and Antithymocyte Globulin for Hematopoietic Cell Transplantation from Unrelated or Haploidentical Family Donors in Patients with Acute Myeloid Leukemia in Remission.

To investigate the role of antithymocyte globulin (ATG)-containing reduced-intensity conditioning (RIC) in hematopoietic cell transplantation (HCT) from unrelated (UD) or haploidentical family donors (HFD), we conducted a phase 2 trial of 237 patients (age range, 16 to 69 years) with acute myeloid leukemia (AML) in remission. Patients undergoing UD-HCT (n = 93) or HFD-HCT (n = 59) received RIC comprising busulfan, fludarabine, and ATG, 9 mg/kg, whereas those undergoing HCT from matched sibling donors (MSD, n = 85) received myeloablative busulfan and cyclophosphamide conditioning or aforementioned RIC with ATG, 4.5 mg/kg. For graft-versus-host disease (GVHD) prophylaxis, cyclosporine and methotrexate were administered. The median follow-up period was 44.7 months after HCT for 161 survivors. For UD-HCT versus HFD-HCT, there were no significant differences in leukemia recurrence, nonrelapse mortality, relapse-free survival, grades 2 to 4 acute GVHD, and moderate-to-severe chronic GVHD. Furthermore, when the outcomes of UD-HCT and HFD-HCT were combined and compared with those of MSD-HCT, there were no significant differences in leukemia recurrence (3-year cumulative incidence, 30% versus 29%), nonrelapse mortality (3-year cumulative incidence, 7% versus 8%), relapse-free survival (3-year estimate, 63% versus 63%), and grades 2 to 4 acute GVHD (120-day cumulative incidence, 16% versus 13%). Moderate-to-severe chronic GVHD, however, occurred less frequently in UD/HFD-HCT (2-year cumulative incidence, 22% versus 40%; P = .006). The addition of ATG to conditioning regimen was a significant predictor for less chronic GVHD (subdistribution hazard ratio, .59). In AML in remission, UD/HFD-HCT after ATG-containing RIC achieved leukemia control equivalent to that of MSD-HCT. Despite HLA disparity in UD/HFD-HCT, chronic GVHD occurred less frequently after ATG-containing RIC, suggesting a strong GVHD-modulating effect of ATG.

Revisiting Fluctuations in L2 Article Choice in L1-Korean L2-English Learners.

The current study investigated the distinction of L2 (second language) English article choice sensitivity in fifty-three L1-Korean L2-English learners in semantic contexts. In the context of English as a foreign language, the participants were divided into two groups based on grammatical ability as determined by their performance on a cloze test. In addition, a forced-choice elicitation test and a writing production test were administered to assess, respectively, the participants' receptive and productive article choice abilities. Regardless of grammatical ability, the results disclosed the overuse of the indefinite a in the [[Formula: see text]definite, -specific] context and the definite the in the [-definite, [Formula: see text]specific] context on the forced-choice elicitation test. In the [[Formula: see text]definite, [Formula: see text]specific] and [-definite, -specific] contexts, however, the overuse of either the indefinite a or the definite the, respectively, was less likely. Furthermore, it was revealed on the writing test that the participants more accurately used the definite the than the indefinite a, and they were also found to unreasonably omit more articles than to add or substitute articles on the writing production test. The findings across the two tests indicate that L1-Korean L2-English learners are more likely to have intrinsic difficulties transferring their L1 noun phrase (NP) knowledge to L2 NP knowledge owing to structural discrepancies and complex interfaces between L1 NPs and L2 NPs with respect to syntactic, semantic and pragmatic/discourse language subsystems.

Donor-Derived Natural Killer Cell Infusion after Human Leukocyte Antigen-Haploidentical Hematopoietic Cell Transplantation in Patients with Refractory Acute Leukemia.

The optimum method of donor natural killer cell infusion (DNKI) after allogeneic hematopoietic cell transplantation (HCT) remains unclear. Fifty-one patients (age range, 19 years to 67 years) with refractory acute leukemia underwent HLA-haploidentical HCT and underwent DNKI on days 6, 9, 13, and 20 of HCT. Median DNKI doses were .5, .5, 1.0, and 2.0 × 108/kg cells, respectively. During DNKI, 33 of the 45 evaluated patients (73%) developed fever (>38.3°C) along with weight gain (median, 13%; range, 2% to 31%) and/or hyperbilirubinemia (median, 6.2 mg/dL; range, 1.0 mg/dL to 35.1 mg/dL); the toxicity was reversible in 90% of patients. After transplantation, we observed cumulative incidences of neutrophil engraftment (≥500/µL), grade 2 to 4 acute graft-versus-host disease (GVHD), chronic GVHD, and nonrelapse mortality of 84%, 28%, 30%, and 16%, respectively. The leukemia complete remission rate was 57% at 1 month after HCT and 3-year cumulative incidence of leukemia progression was 75%. When analyzed together with our historical cohort of 40 patients with refractory acute leukemia who underwent haploidentical HCT and DNKI on days 14 and 21 only, higher expression of NKp30 (>90%) on donor NK cells was an independent predictor of higher complete remission (hazard ratio, 5.59) and less leukemia progression (hazard ratio, .57). Additional DNKI on days 6 and 9 was not associated with less leukemia progression (75% versus 55%).

Bio-inspired dewetted surfaces based on SiC/Si interlocked structures for enhanced-underwater stability and regenerative-drag reduction capability.

Drag reduction has become a serious issue in recent years in terms of energy conservation and environmental protection. Among diverse approaches for drag reduction, superhydrophobic surfaces have been mainly researched due to their high drag reducing efficiency. However, due to limited lifetime of plastron (i.e., air pockets) on superhydrophobic surfaces in underwater, the instability of dewetted surfaces has been a sticking point for practical applications. This work presents a breakthrough in improving the underwater stability of superhydrophobic surfaces by optimizing nanoscale surface structures using SiC/Si interlocked structures. These structures have an unequaled stability of underwater superhydrophobicity and enhance drag reduction capabilities,with a lifetime of plastron over 18 days and maximum velocity reduction ratio of 56%. Furthermore, through photoelectrochemical water splitting on a hierarchical SiC/Si nanostructure surface, the limited lifetime problem of air pockets was overcome by refilling the escaping gas layer, which also provides continuous drag reduction effects.

Neuropep-1 ameliorates learning and memory deficits in an Alzheimer's disease mouse model, increases brain-derived neurotrophic factor expression in the brain, and causes reduction of amyloid beta plaques.

Alzheimer's disease (AD) is a neurodegenerative disease characterized by amyloid beta (Aß) deposits, hyperphosphorylated tau deposition, and cognitive dysfunction. Abnormalities in the expression of brain-derived neurotrophic factor (BDNF), which plays an important role in learning and memory formation, have been reported in the brains of AD patients. A BDNF modulating peptide (Neuropep-1) was previously identified by positional-scanning synthetic peptide combinatorial library. Here we examine the neuroprotective effects of Neuropep-1 on several in vitro neurotoxic insults, and triple-transgenic AD mouse model (3xTg-AD). Neuropep-1 protects cultured neurons against oligomeric Aß1-42, 1-methyl-4-phenylpyridinium, and glutamate-induced neuronal cell death. Neuropep-1 injection also significantly rescues the spatial learning and memory deficits of 3xTg-AD mice compared with vehicle-treated control group. Neuropep-1 treatment markedly increases hippocampal and cortical BDNF levels. Furthermore, we found that Neuropep-1-injected 3xTg-AD mice exhibit dramatically reduced Aß plaque deposition and Aß levels without affecting tau pathology. Neuropep-1 treatment does not alter the expression or activity of full-length amyloid precursor protein, α-, ß-, or γ-secretase, but levels of insulin degrading enzyme, an Aß degrading enzyme, were increased. These findings suggest Neuropep-1 may be a therapeutic candidate for the treatment of AD.

Sub-syllabic processing in young Korean-English bilinguals: semivowel placement differences between Korean and English.

This study investigated the sub-syllabic awareness of two groups of 86 Korean kindergarteners learning English as a foreign language (EFL) or English as a second language (ESL). In addition, it explored the cross-language transfer of sub-syllabic units between Korean and English by taking into account their lexical abilities with respect to the two languages. The participants were assessed in Korean and English based on their sound oddity and similarity judgments with respect to sub-syllabic units in spoken pseudo-syllables containing semivowels (e.g., /j/ and /w/) as well as on a lexical ability test. The results indicate that EFL and ESL children preferred body structure and rime structure, respectively, regardless of the language. These results provide support for the bilingual interactive activation model; that is, bilingual lexicon may be represented in language non-selective access. Further, the differences in semivowel placement between Korean and English may be a possible resource for language-specific sub-syllabic awareness.

A novel sensing method and sensing algorithm development for a ubiquitous network.

This paper proposes a novel technique which provides energy efficient circuit design for sensors networks. The overall system presented requires a minimum number of independently communicating sensors and sub-circuits which enable it to reduce the power consumption by setting unused sensors to idle. This technique reduces hardware requirements, time and interconnection problems with a supervisory control. Our proposed algorithm, which hands over the controls to two software mangers for the sensing and moving subsystems can greatly improve the overall system performance. Based on the experimental results, we observed that our system, which is using sensing and moving managers, the four sensors required only 3.4 mW power consumption when a robot arm is moved a total distance of 17 cm. This system is designed for robot applications but could be implemented to many other human environments such as "ubiquitous cities", "smart homes", etc.