Background Meditation on Twin Hearts (MTH) involves blessing the earth to alleviate the sufferings, and praying for the well-being of the entire society using heart and crown chakra. This meditation is characterized by mechanisms of loving-kindness, self-healing imagery, and open awareness. Purpose This study aims to identify the experiences and perceived benefits associated with practicing MTH by nursing students. Method Qualitative method using content analysis was used to study meditation experiences. After obtaining the informed consent, 22 nursing students were introduced to MTH. Experiences and feedback from meditation sessions were reported each day during their 8 week practice. Nursing students also answered seven open-ended questions on the last day of the meditation session. Findings The verbatim descriptions of experiences reported by nursing students were abstracted to elements (17), properties (6), and categories (2). Identified properties are positive experiences, experiences of awareness, energy experiences, tangible outcomes, physiological reactions, and feedback on the study program. Conclusion The experiences narrated by nursing students include positive affective experiences, health benefits, resolution of problem, awareness and energy experiences, and prosocial tendencies. These findings indicate that MTH would enhance the well-being of the nursing students and could be used as a self-care measure.

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Multiple Input Multiple Output-Orthogonal Frequency Division Multiplexing (MIMO-OFDM) is a familiar modern wireless broadband technology due to its resistance against multipath fading, high data transmission rate, and spectral efficiency. This technology delivers dependable communication as well as a large range of coverage. The precise recovery of Channel State Information (CSI) and synchronization among the receiver and transmitter are two major challenges for MIMO-OFDM systems. Several estimate procedures, like blind, pilot-aided, and semi-blind channel estimating, are used to recover channel state information. Yet, those systems have several flaws that cause them to perform poorly. Hence, this paper describes the basic introduction of the Channel Estimation (CE) process in the MIMO-OFDM system. The main goal of this survey is to study analyzing and categorizing the channel estimation algorithms, and simulation tools in different contributions. Further, the performance analysis with different performance metrics from diverse contributions is pointed out. Thus, this review article presents a detailed overview of the various channel estimation schemes that have been exploited in the OFDM channel to enhance the estimation of the CSI in the MIMO-OFDM systems. This work presents and discusses the relevant comparative results and computational complexity for all of these CE systems. Furthermore, there is a list of open study directions for further exploration.

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Multiple-input multiple-output (MIMO) technology is much significant for