New Auditory Signal Pathway to Receptor

Review Article | DOI: https://doi.org/10.31579/2690-8808/198

New Auditory Signal Pathway to Receptor

  • Jan Myjkowski

Retired physician, Specialist in otolaryngology – pensioner, Poland

*Corresponding Author: Jan Myjkowski, Retired physician, Specialist in otolaryngology – pensioner, Poland.

Citation: Jan Myjkowski, (2024), New Auditory Signal Pathway to Receptor, J, Clinical Case Reports and Studies, 5(4); DOI:10.31579/2690-8808/198

Copyright: ©, 2024, Jan Myjkowski. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: 15 May 2024 | Accepted: 24 May 2024 | Published: 31 May 2024

Keywords: hydrodynamics; phenomenon; mechanical theory

Abstract

The paper points out the shortcomings and doubts of “Bekesy's travelling wave" theory of hearing. Announced in 1928, it is a typical mechanical theory of hearing [1]. It has been supplemented many times later on, but its foundation in terms of the role of the basilar membrane and resonance, as well as hydrodynamics of cochlear fluids is constant. The theory does not properly explain all the processes that make up the reception, processing and transmission of auditory information.

Introduction

The paper points out the shortcomings and doubts of “Bekesy's travelling wave" theory of hearing. Announced in 1928, it is a typical mechanical theory of hearing [1]. It has been supplemented many times later on, but its foundation in terms of the role of the basilar membrane and resonance, as well as hydrodynamics of cochlear fluids is constant. The theory does not properly explain all the processes that make up the reception, processing and transmission of auditory information. This paper is an impetus for a new analysis of hearing mechanisms consistent with the current state of knowledge at the submolecular level in agreement with physics and quantum chemistry [2]. There are already some signs of a new vision of hearing, but a broader discussion is lacking. Belief in Bekesy's dogma is still too strong. The paper presents evidence of existence of a simple and rapid auditory signal pathway to the receptor through the cochlear bone housing [3].

Problems with Bekesy's travelling wave theory:

1. Cochlear implant surgery for partial deafness causes immobilization of the basilar membrane, but does not ruin the hearing that was there before. This indicates a different signal pathway to the receptor, without the mediation of the basilar membrane and cochlear fluids. 

2. Traveling wave damping – cochlear fluids on both sides of the basilar membrane have properties that dampen vibrations of the basilar membrane. There is a deficiency of accurate analysis or calculations.

3. The diameter of the cochlear ducts decreases from the base to the top. According to the theory, the width and thickness of the basilar membrane increases on its way to the cap. The size of the cochlear canals at the base is 1.7 mm, and the width of the basilar membrane separating these canals is 0.25 mm? At the top of the cochlea - according to the theory - the width of the basilar membrane is 0.75 mm. [4].

4. Natural vibrations of the basilar membrane were calculated for vibrations in the air, without taking into account cochlear fluid attenuation and without taking into account the mass of the organ of Corti on the basilar membrane. In humans, natural vibrations of the basilar membrane are 16 Hz - 20 kHz. Mammals (mouse, cat, bat) can hear up to 100- 200 kHz. Their natural vibrations cannot reach 200 kHz. The results of studies on natural vibrations of human tissues range between 5 and 100 Hz. [5]

5. The resonance of the longitudinal wave with the transverse wave creates a problem of information transmission. Wave resonance occurs when the frequency and direction are consistent and the damping is lower than the energy of the forcing wave. With a threshold wave and a slightly larger wave, resonance will not arise, because the damping exceeds the energy of the forcing wave.

6. The resonance of a 14.5 m wave at 100 Hz on a 35 mm long basilar membrane may be only residual. The maximum of the amplitude of this wave transmitting energy for the forced wave is 7.25 m. We hear well. There must be another transmission mechanism to ensure hearing.

7. The OHC is not in contact with the basilar membrane. How it pulls the basilar membrane, during the amplification of quiet sounds. At the lower pole of the OHC there is a network of synapses of afferent and efferent innervation. It seems unlikely that with each contraction of the OHC pulling up the basilar membrane, these delicate 50-nm structures that perform such an important function would be subjected to destructive force. 

8. Quiet tones amplified by 40 dB are still heard as quiet. Tones that are not picked up, by this method, cannot be amplified. There is intracellular, molecular amplification, for amplifying the energy of signal received but too negligible to reach the brain. [6]

9. A mechanical method can be used to amplify completely different, strange waves on the basilar membrane, already transmitting different information. Each wave period may contain new information.

10. Waves with a duration of tenths of a millisecond are received [7]. The forcing wave has only 1 or 2 wave periods, full resonance is not possible. Hearing is made possible by a different signal pathway to the receptor. 

11. The difference in wave speed in the cochlear fluid and the traveling wave averages 29 times - (1450: 50 m/s). How is the information encoded with such transmission compression? The traveling wave on the basilar membrane from the oval window to the cap -35 mm - "runs" approx. 1 ms. During this time, the sound wave in the cochlear fluid travels a 1450 mm distance with information. 

12. A pigeon hears sounds of 5 Hz - the length of wave in the fluid is 290 m. Can resonance occur on a basilar membrane with a length of 5 mm? The center of the forcing wave is at 145 m wave? [8]. Resonance is impossible. Pigeon can hear very well. The signal reaches the receptor by a different route, not through the basilar membrane and cochlear fluids.

13. Owl can hear 0.001 nm waves at the input. In the cochlea, the wave amplitude fades several hundred times. A sound wave approx. 100 times smaller than the diameter of a hydrogen atom will not induce a travelling wave on the basilar membrane. Owl can hear perfectly. It has very good directional hearing [8]. This indicates a different signal pathway to the receptor.

14. We hear 10 dB and 10 kHz - according to the theory and calculations in accordance with Bekesy's theory, in the duct, at the beginning of the atrium, wave is 0.0000000747 nm - how do we hear it? When the wave energy in the cochlea is fading? There is a long way to go to the receptor. 

15. We listen to very quiet music at 10 dB, we have very good hearing. Sound wave after amplification in the middle ear is transmitted to the cochlear fluids and induces a wave traveling on the basilar membrane with an amplitude of 0.00026 nanometers (for a frequency of approximately 10 kHz). This is a magnitude 154 times smaller than the diameter of a hydrogen atom, and there is no way for this wave of such amplitude to induce fluid flow, tilting the hairs of hair cells, which are more than 100,000 times thicker than the amplitude of this wave. If there is no receptor stimulation, then there is no mechanical amplification! We hear it. That's because the signal to the receptor takes a different route, through the bone housing of the cochlea [9]. 

16. The depolarization and contraction of OHC depends on the operation of ion channels, of which work cycle is 2-4 ms. Theoretically, the whole cell can contract after depolarization up to 250/s. [10]. But OHCs contract to 200 kHz ! Maybe the depolarization and contraction of the auditory cell does not involve the whole cell at the same time? Depolarization can involve parts of the membrane.

17. How do the basilar membrane and cochlear fluids encode polytonal information with aliquots, phase shifts, accent, and length of sound?

18. Is there only one mechano-dependent potassium channel on 1 hair of the hair cell? One cadherin strand supports one channel? It should be checked.

19. How do cadherin strands regulate the gating of mechano-dependent potassium ion channels? They regulate the opening and closing of channels according to the frequency and energy of the sound wave, according to the coded information?

20 How is information encoded by the tilting of hairs of hair cells and the tension of cadherin strands pulling the mechanism that gates the openness of mechano-dependent channels? They pull the "mechanism", how do they close the channel?

21. Is OHC just an amplifier for IHC? Does it use its own afferent innervation, receive and transmit information to the brain?

22. There are vibrating elements in the middle and inner ear that have mass. If there is motion, acceleration and mass - then there is inertia. Bekesy's theory does not take this into account. There is no calculation of inertia in the middle and inner ear. Inertia in the ear: (2π x frequency)2 x amplitude x mass g/mm/s2. ..Inertia is directly proportional to amplitude and proportional to the square of frequency. The results of the calculations indicate that a different mechanism is responsible for the transmission of high frequencies, where the sound wave, which has no mass, conveys information via a different path [11]. If in the labyrinth the inertia of the fluid is the basis for maintaining balance, in the organ of hearing inertia plays an important role in hearing high frequencies when the supplied mechanical energy of the sound wave is lower than the inertia of the vibrating elements having mass. Therefore, high frequencies cannot be conducted through the basilar membrane and cochlear fluids. The sound wave, having no mass, goes to the receptor by a different route. The calculations are convincing here. Weight of the vibrating elements of the tympanic cavity = 70 mg. Weight of the basilar membrane with organ of Corti + fluids - unknown. 

23. Damping at resonance reduces the amplitude of the forced wave. What is the energy flow from the forcing wave to the forced wave depending on the amount of damping - there are no calculations... How does this affect the encoding and reception of information? There are no analyses.

24. According to the theory, the traveling wave grows from the oval window towards the cap - moving away from the source of vibrations. For long waves, resonance in the first half of the basilar membrane is impossible, and this wave on the basilar membrane grows from the oval window? The problem arises in case of polytones with multiple aliquots - each frequency has its own maximum wave? How does fluid flow and tilting of the hairs of hair cells occur? Is there a different fluid flow for each wave at the same time?

25. How does a 50 Hz wave with a length of 29 m resonate on a 1.0 mm long basilar membrane in a hummingbird when the length of the basilar membrane is 29,000 times smaller than the length of the forcing wave? Hummingbirds can hear well.

26. How are quiet polytone sounds conducted, requiring time-consuming amplification? They are separated from the loud sounds, amplified and separately conveyed to the brain after the time required for amplification? It’s difficult to accept.

27. If a 10 kHz wave resonates on the 4th mm of the basilar membrane, at 0.2 ms, then 6-10 kHz resonates on 0-4 mm of the basilar membrane (Ph.D. dissertation, Kamieniecki, Polit. Warsaw, 2018). Can there be 0.00066 mm of basilar membrane per 1 frequency, responsible for frequency resolution? This is unlikely to happen.

28. Stapedotomy improves low and mid frequencies [12]. The action of piston is used, without the action of the incus-stapes joint and the oscillating movements of the stapes, which are important in the transmission of high frequencies. In oscillating movements, half of the stapes plate produces a forward wave and the other half of the plate simultaneously produces a backward wave. This leads to disturbances in fluid flow, destructive interference and disruption of information transmission. Information is transmitted to the bone housing of the cochlea via a sound wave and then directly to the receptor.

29. OHC contraction amplifies quiet sounds rather than amplifying loud sounds by pulling on the basilar membrane? What is the mechanism responsible for the regulation of basilar membrane pull by OHCs? 

30. The basilar membrane, is a fibrous tissue, comes from the germ layer of connective tissue, and has no afferent or efferent innervation. It has no tension adjustment. All-important organs have such innervation.

31. Bekesy wrongly assumed that the sound wave travels on both sides of the basilar membrane and the resulting pressure differences create a traveling wave due to the resonance of the sound wave with the basilar membrane. Physiologically, the sound wave runs in the atrial duct. The sound wave is separated from the basilar membrane by Reissner's membrane, the endolymph fluid, tectorial membrane, the fluid of the hypopharyngeal region and the mass of the organ of Corti with hearing receptors, lying on the basilar membrane. The sound wave passes through the receptor (according to Bekesy), without transmitting any information to reach the basilar membrane, induce a traveling wave that starts a new path of information transmission to the receptor. Nature could not accept such a solution.

32. To simplify the calculations, Bekesy proposed to "straighten the cochlea," creating a straight cochlear duct tapering in the middle. This changes the laws of physics - there is no wave reflection, reflection attenuation, absorption attenuation, interference attenuation. Adopting such a calculation methodology with the removal of Reissner's membrane distorts the results. For 10 dB and 10 kHz, the vibration amplitude of the stapes plate is 0.000011757 nm, the wave amplitude at the base of the stapes is 0.00000008747 nm, the amplitude of the basilar membrane is 0.00026 nm (W. Gambin - according to Bekesy's calculation methodology). It’s not possible for energy of a 10 dB wave with an amplitude of 0.05 nm at the input to decrease 570,000 times in the initial section of the atrial duct. The paradox is that we hear a tone of 10 dB. How is this possible? There is only one logical answer. The sound wave travels to the receptor by a different route bypassing the cochlear fluids and basilar membrane, with no loss of energy. The path leads from the tympanic membrane, the ossicles of the tympanic cavity from the stapes plate to the bone housing of the cochlea, and with a speed of 4,000 m/s the signal heads to the receptor without much energy loss[10]. 

33. In studies on human hair cells, hair deflections ranged from 50 nm for basal OHCs to 150 nm for apical OHCs. One should compare the amplitude of threshold wave of 0.01 nm at the input, decreasing hundreds of times along the way, with the possibility of deflecting OHC hairs 10,000 times thicker than the wave at the input. Moreover, the deflection of a hair with a thickness of 100 nm via the cadherin thread is supposed to open ion channel with a diameter of 1 nm at the frequency of up to 200 thousand/s. (in a bat). These movements must encode auditory information (amplitude, frequency, harmonic components, phase shifts, accent, length of sound and melody). The channel opening takes milliseconds or fractions of a millisecond. There must be channel closing after each opening. Cadherin thread is not capable of closing channels. It was thought up (J. Hudspeth) that myosin interacting with actin is responsible for channel closing. None of the myosins are able to work at this rate. A more probable hypothesis is that the sound wave energy acts directly on the mechanism responsible for the gating of mechano-dependent ion channels [13], by acting on the sound-sensitive proteins (sound-sensitive molecules) of the ion channel, influencing the conformational changes of the protein regulating the activation and inactivation gates responsible for opening and closing ion channels.

34. Billions of creatures in the world do not have the basilar membrane and cochlear fluids in their hearing organs, but they receive information contained in sound waves up to a frequency of 300 kHz. So there is a direct sensitivity and ability to receive information from wave through the receptor. 

35. Acoustic otoemission, according to Kemp, involves contraction of the OHC and pulling on the basilar membrane, which generates sound waves found in the external auditory canal. The hair cell contracts after depolarization, leading to the formation of an action potential. If there are OHC contractions, the potential in the auditory nerve must be tested. The outer hair cells have no contact with the basilar membrane, they are located between the Deiters cells, so there is only sliding and friction, without an effective pull-up of the basilar membrane on which the OHCs rest along with massive organ of Corti. The entire conglomerate is embedded in fluid - so the dampening effect of inner ear fluid must be taken into account. Moreover, it is not possible for the basilar membrane to vibrate on its own - it vibrates together with the organ of Corti, fluid spaces, nerves, vessels, hairs of hair cells, cadherin connections (tip-links) and cochlear fluids! Do such vibrations produce sound of a specific frequency? Acoustic emission is common in nature. It is formed in brick walls, oil tanks, bridges, even in a bag of rice and in knee where there is no OHC. The acoustic otoemission mechanism described by Kemp is questionable. There may be other reasons for this phenomenon.

Physiological possibility of traveling wave formation on the basilar membrane. (Author).

 The stapes plate generates waves in the atrial fluid. The wave, traveling in a straight line, encounters the wall of the cochlear duct, which is concave in two planes. Reflections from the concave surface cause the concentration of the reflected wave, which reaches the basilar membrane through the flaccid Reissner’s membrane. Multiple reflections result in the summation of wave energy in the basilar membrane. A transverse wave is formed on the basilar membrane, which grows from the oval window toward the cap. High-frequency waves are reflected first. The absorbed energy of long waves, reflected later, is accumulated in a further and further part of the basilar membrane, causing a wave on the basilar membrane. But can such a traveling wave be created when the amplitude of the wave in the atrial canal is even 100 times smaller than the diameter of a hydrogen atom? A signal of this amplitude reaches the receptor - by a different route.

Conclusion

The collected information, analysis and evidence let us put forward the thesis that there is a simple and fast route of the auditory signal from the middle ear through the bone housing of the cochlea directly to the receptor. This path is the most reasonable and documented for high-frequency tones. There is already plenty of evidence. Further simple research is proposed to confirm this thesis. Acoustic otoemission also requires new analysis. Acoustic otoemission is a common phenomenon and is used in medical research, but there is no logical explanation of the mechanism behind the phenomenon.

References

Clearly Auctoresonline and particularly Psychology and Mental Health Care Journal is dedicated to improving health care services for individuals and populations. The editorial boards' ability to efficiently recognize and share the global importance of health literacy with a variety of stakeholders. Auctoresonline publishing platform can be used to facilitate of optimal client-based services and should be added to health care professionals' repertoire of evidence-based health care resources.

img

Virginia E. Koenig

Journal of Clinical Cardiology and Cardiovascular Intervention The submission and review process was adequate. However I think that the publication total value should have been enlightened in early fases. Thank you for all.

img

Delcio G Silva Junior

Journal of Women Health Care and Issues By the present mail, I want to say thank to you and tour colleagues for facilitating my published article. Specially thank you for the peer review process, support from the editorial office. I appreciate positively the quality of your journal.

img

Ziemlé Clément Méda

Journal of Clinical Research and Reports I would be very delighted to submit my testimonial regarding the reviewer board and the editorial office. The reviewer board were accurate and helpful regarding any modifications for my manuscript. And the editorial office were very helpful and supportive in contacting and monitoring with any update and offering help. It was my pleasure to contribute with your promising Journal and I am looking forward for more collaboration.

img

Mina Sherif Soliman Georgy

We would like to thank the Journal of Thoracic Disease and Cardiothoracic Surgery because of the services they provided us for our articles. The peer-review process was done in a very excellent time manner, and the opinions of the reviewers helped us to improve our manuscript further. The editorial office had an outstanding correspondence with us and guided us in many ways. During a hard time of the pandemic that is affecting every one of us tremendously, the editorial office helped us make everything easier for publishing scientific work. Hope for a more scientific relationship with your Journal.

img

Layla Shojaie

The peer-review process which consisted high quality queries on the paper. I did answer six reviewers’ questions and comments before the paper was accepted. The support from the editorial office is excellent.

img

Sing-yung Wu

Journal of Neuroscience and Neurological Surgery. I had the experience of publishing a research article recently. The whole process was simple from submission to publication. The reviewers made specific and valuable recommendations and corrections that improved the quality of my publication. I strongly recommend this Journal.

img

Orlando Villarreal

Dr. Katarzyna Byczkowska My testimonial covering: "The peer review process is quick and effective. The support from the editorial office is very professional and friendly. Quality of the Clinical Cardiology and Cardiovascular Interventions is scientific and publishes ground-breaking research on cardiology that is useful for other professionals in the field.

img

Katarzyna Byczkowska

Thank you most sincerely, with regard to the support you have given in relation to the reviewing process and the processing of my article entitled "Large Cell Neuroendocrine Carcinoma of The Prostate Gland: A Review and Update" for publication in your esteemed Journal, Journal of Cancer Research and Cellular Therapeutics". The editorial team has been very supportive.

img

Anthony Kodzo-Grey Venyo

Testimony of Journal of Clinical Otorhinolaryngology: work with your Reviews has been a educational and constructive experience. The editorial office were very helpful and supportive. It was a pleasure to contribute to your Journal.

img

Pedro Marques Gomes

Dr. Bernard Terkimbi Utoo, I am happy to publish my scientific work in Journal of Women Health Care and Issues (JWHCI). The manuscript submission was seamless and peer review process was top notch. I was amazed that 4 reviewers worked on the manuscript which made it a highly technical, standard and excellent quality paper. I appreciate the format and consideration for the APC as well as the speed of publication. It is my pleasure to continue with this scientific relationship with the esteem JWHCI.

img

Bernard Terkimbi Utoo

This is an acknowledgment for peer reviewers, editorial board of Journal of Clinical Research and Reports. They show a lot of consideration for us as publishers for our research article “Evaluation of the different factors associated with side effects of COVID-19 vaccination on medical students, Mutah university, Al-Karak, Jordan”, in a very professional and easy way. This journal is one of outstanding medical journal.

img

Prof Sherif W Mansour

Dear Hao Jiang, to Journal of Nutrition and Food Processing We greatly appreciate the efficient, professional and rapid processing of our paper by your team. If there is anything else we should do, please do not hesitate to let us know. On behalf of my co-authors, we would like to express our great appreciation to editor and reviewers.

img

Hao Jiang

As an author who has recently published in the journal "Brain and Neurological Disorders". I am delighted to provide a testimonial on the peer review process, editorial office support, and the overall quality of the journal. The peer review process at Brain and Neurological Disorders is rigorous and meticulous, ensuring that only high-quality, evidence-based research is published. The reviewers are experts in their fields, and their comments and suggestions were constructive and helped improve the quality of my manuscript. The review process was timely and efficient, with clear communication from the editorial office at each stage. The support from the editorial office was exceptional throughout the entire process. The editorial staff was responsive, professional, and always willing to help. They provided valuable guidance on formatting, structure, and ethical considerations, making the submission process seamless. Moreover, they kept me informed about the status of my manuscript and provided timely updates, which made the process less stressful. The journal Brain and Neurological Disorders is of the highest quality, with a strong focus on publishing cutting-edge research in the field of neurology. The articles published in this journal are well-researched, rigorously peer-reviewed, and written by experts in the field. The journal maintains high standards, ensuring that readers are provided with the most up-to-date and reliable information on brain and neurological disorders. In conclusion, I had a wonderful experience publishing in Brain and Neurological Disorders. The peer review process was thorough, the editorial office provided exceptional support, and the journal's quality is second to none. I would highly recommend this journal to any researcher working in the field of neurology and brain disorders.

img

Dr Shiming Tang

Dear Agrippa Hilda, Journal of Neuroscience and Neurological Surgery, Editorial Coordinator, I trust this message finds you well. I want to extend my appreciation for considering my article for publication in your esteemed journal. I am pleased to provide a testimonial regarding the peer review process and the support received from your editorial office. The peer review process for my paper was carried out in a highly professional and thorough manner. The feedback and comments provided by the authors were constructive and very useful in improving the quality of the manuscript. This rigorous assessment process undoubtedly contributes to the high standards maintained by your journal.

img

Raed Mualem

International Journal of Clinical Case Reports and Reviews. I strongly recommend to consider submitting your work to this high-quality journal. The support and availability of the Editorial staff is outstanding and the review process was both efficient and rigorous.

img

Andreas Filippaios

Thank you very much for publishing my Research Article titled “Comparing Treatment Outcome Of Allergic Rhinitis Patients After Using Fluticasone Nasal Spray And Nasal Douching" in the Journal of Clinical Otorhinolaryngology. As Medical Professionals we are immensely benefited from study of various informative Articles and Papers published in this high quality Journal. I look forward to enriching my knowledge by regular study of the Journal and contribute my future work in the field of ENT through the Journal for use by the medical fraternity. The support from the Editorial office was excellent and very prompt. I also welcome the comments received from the readers of my Research Article.

img

Dr Suramya Dhamija

Dear Erica Kelsey, Editorial Coordinator of Cancer Research and Cellular Therapeutics Our team is very satisfied with the processing of our paper by your journal. That was fast, efficient, rigorous, but without unnecessary complications. We appreciated the very short time between the submission of the paper and its publication on line on your site.

img

Bruno Chauffert

I am very glad to say that the peer review process is very successful and fast and support from the Editorial Office. Therefore, I would like to continue our scientific relationship for a long time. And I especially thank you for your kindly attention towards my article. Have a good day!

img

Baheci Selen

"We recently published an article entitled “Influence of beta-Cyclodextrins upon the Degradation of Carbofuran Derivatives under Alkaline Conditions" in the Journal of “Pesticides and Biofertilizers” to show that the cyclodextrins protect the carbamates increasing their half-life time in the presence of basic conditions This will be very helpful to understand carbofuran behaviour in the analytical, agro-environmental and food areas. We greatly appreciated the interaction with the editor and the editorial team; we were particularly well accompanied during the course of the revision process, since all various steps towards publication were short and without delay".

img

Jesus Simal-Gandara

I would like to express my gratitude towards you process of article review and submission. I found this to be very fair and expedient. Your follow up has been excellent. I have many publications in national and international journal and your process has been one of the best so far. Keep up the great work.

img

Douglas Miyazaki

We are grateful for this opportunity to provide a glowing recommendation to the Journal of Psychiatry and Psychotherapy. We found that the editorial team were very supportive, helpful, kept us abreast of timelines and over all very professional in nature. The peer review process was rigorous, efficient and constructive that really enhanced our article submission. The experience with this journal remains one of our best ever and we look forward to providing future submissions in the near future.

img

Dr Griffith

I am very pleased to serve as EBM of the journal, I hope many years of my experience in stem cells can help the journal from one way or another. As we know, stem cells hold great potential for regenerative medicine, which are mostly used to promote the repair response of diseased, dysfunctional or injured tissue using stem cells or their derivatives. I think Stem Cell Research and Therapeutics International is a great platform to publish and share the understanding towards the biology and translational or clinical application of stem cells.

img

Dr Tong Ming Liu

I would like to give my testimony in the support I have got by the peer review process and to support the editorial office where they were of asset to support young author like me to be encouraged to publish their work in your respected journal and globalize and share knowledge across the globe. I really give my great gratitude to your journal and the peer review including the editorial office.

img

Husain Taha Radhi

I am delighted to publish our manuscript entitled "A Perspective on Cocaine Induced Stroke - Its Mechanisms and Management" in the Journal of Neuroscience and Neurological Surgery. The peer review process, support from the editorial office, and quality of the journal are excellent. The manuscripts published are of high quality and of excellent scientific value. I recommend this journal very much to colleagues.

img

S Munshi

Dr.Tania Muñoz, My experience as researcher and author of a review article in The Journal Clinical Cardiology and Interventions has been very enriching and stimulating. The editorial team is excellent, performs its work with absolute responsibility and delivery. They are proactive, dynamic and receptive to all proposals. Supporting at all times the vast universe of authors who choose them as an option for publication. The team of review specialists, members of the editorial board, are brilliant professionals, with remarkable performance in medical research and scientific methodology. Together they form a frontline team that consolidates the JCCI as a magnificent option for the publication and review of high-level medical articles and broad collective interest. I am honored to be able to share my review article and open to receive all your comments.

img

Tania Munoz

“The peer review process of JPMHC is quick and effective. Authors are benefited by good and professional reviewers with huge experience in the field of psychology and mental health. The support from the editorial office is very professional. People to contact to are friendly and happy to help and assist any query authors might have. Quality of the Journal is scientific and publishes ground-breaking research on mental health that is useful for other professionals in the field”.

img

George Varvatsoulias

Dear editorial department: On behalf of our team, I hereby certify the reliability and superiority of the International Journal of Clinical Case Reports and Reviews in the peer review process, editorial support, and journal quality. Firstly, the peer review process of the International Journal of Clinical Case Reports and Reviews is rigorous, fair, transparent, fast, and of high quality. The editorial department invites experts from relevant fields as anonymous reviewers to review all submitted manuscripts. These experts have rich academic backgrounds and experience, and can accurately evaluate the academic quality, originality, and suitability of manuscripts. The editorial department is committed to ensuring the rigor of the peer review process, while also making every effort to ensure a fast review cycle to meet the needs of authors and the academic community. Secondly, the editorial team of the International Journal of Clinical Case Reports and Reviews is composed of a group of senior scholars and professionals with rich experience and professional knowledge in related fields. The editorial department is committed to assisting authors in improving their manuscripts, ensuring their academic accuracy, clarity, and completeness. Editors actively collaborate with authors, providing useful suggestions and feedback to promote the improvement and development of the manuscript. We believe that the support of the editorial department is one of the key factors in ensuring the quality of the journal. Finally, the International Journal of Clinical Case Reports and Reviews is renowned for its high- quality articles and strict academic standards. The editorial department is committed to publishing innovative and academically valuable research results to promote the development and progress of related fields. The International Journal of Clinical Case Reports and Reviews is reasonably priced and ensures excellent service and quality ratio, allowing authors to obtain high-level academic publishing opportunities in an affordable manner. I hereby solemnly declare that the International Journal of Clinical Case Reports and Reviews has a high level of credibility and superiority in terms of peer review process, editorial support, reasonable fees, and journal quality. Sincerely, Rui Tao.

img

Rui Tao

Clinical Cardiology and Cardiovascular Interventions I testity the covering of the peer review process, support from the editorial office, and quality of the journal.

img

Khurram Arshad

Clinical Cardiology and Cardiovascular Interventions, we deeply appreciate the interest shown in our work and its publication. It has been a true pleasure to collaborate with you. The peer review process, as well as the support provided by the editorial office, have been exceptional, and the quality of the journal is very high, which was a determining factor in our decision to publish with you.

img

Gomez Barriga Maria Dolores

The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews journal clinically in the future time.

img

Lin Shaw Chin

Clinical Cardiology and Cardiovascular Interventions, I would like to express my sincerest gratitude for the trust placed in our team for the publication in your journal. It has been a true pleasure to collaborate with you on this project. I am pleased to inform you that both the peer review process and the attention from the editorial coordination have been excellent. Your team has worked with dedication and professionalism to ensure that your publication meets the highest standards of quality. We are confident that this collaboration will result in mutual success, and we are eager to see the fruits of this shared effort.

img

Maria Dolores Gomez Barriga

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, I hope this message finds you well. I want to express my utmost gratitude for your excellent work and for the dedication and speed in the publication process of my article titled "Navigating Innovation: Qualitative Insights on Using Technology for Health Education in Acute Coronary Syndrome Patients." I am very satisfied with the peer review process, the support from the editorial office, and the quality of the journal. I hope we can maintain our scientific relationship in the long term.

img

Dr Maria Dolores Gomez Barriga

Dear Monica Gissare, - Editorial Coordinator of Nutrition and Food Processing. ¨My testimony with you is truly professional, with a positive response regarding the follow-up of the article and its review, you took into account my qualities and the importance of the topic¨.

img

Dr Maria Regina Penchyna Nieto

Dear Dr. Jessica Magne, Editorial Coordinator 0f Clinical Cardiology and Cardiovascular Interventions, The review process for the article “The Handling of Anti-aggregants and Anticoagulants in the Oncologic Heart Patient Submitted to Surgery” was extremely rigorous and detailed. From the initial submission to the final acceptance, the editorial team at the “Journal of Clinical Cardiology and Cardiovascular Interventions” demonstrated a high level of professionalism and dedication. The reviewers provided constructive and detailed feedback, which was essential for improving the quality of our work. Communication was always clear and efficient, ensuring that all our questions were promptly addressed. The quality of the “Journal of Clinical Cardiology and Cardiovascular Interventions” is undeniable. It is a peer-reviewed, open-access publication dedicated exclusively to disseminating high-quality research in the field of clinical cardiology and cardiovascular interventions. The journal's impact factor is currently under evaluation, and it is indexed in reputable databases, which further reinforces its credibility and relevance in the scientific field. I highly recommend this journal to researchers looking for a reputable platform to publish their studies.

img

Dr Marcelo Flavio Gomes Jardim Filho

Dear Editorial Coordinator of the Journal of Nutrition and Food Processing! "I would like to thank the Journal of Nutrition and Food Processing for including and publishing my article. The peer review process was very quick, movement and precise. The Editorial Board has done an extremely conscientious job with much help, valuable comments and advices. I find the journal very valuable from a professional point of view, thank you very much for allowing me to be part of it and I would like to participate in the future!”

img

Zsuzsanna Bene

Dealing with The Journal of Neurology and Neurological Surgery was very smooth and comprehensive. The office staff took time to address my needs and the response from editors and the office was prompt and fair. I certainly hope to publish with this journal again.Their professionalism is apparent and more than satisfactory. Susan Weiner

img

Dr Susan Weiner

My Testimonial Covering as fellowing: Lin-Show Chin. The peer reviewers process is quick and effective, the supports from editorial office is excellent, the quality of journal is high. I would like to collabroate with Internatioanl journal of Clinical Case Reports and Reviews.

img

Lin-Show Chin

My experience publishing in Psychology and Mental Health Care was exceptional. The peer review process was rigorous and constructive, with reviewers providing valuable insights that helped enhance the quality of our work. The editorial team was highly supportive and responsive, making the submission process smooth and efficient. The journal's commitment to high standards and academic rigor makes it a respected platform for quality research. I am grateful for the opportunity to publish in such a reputable journal.

img

Sonila Qirko

My experience publishing in International Journal of Clinical Case Reports and Reviews was exceptional. I Come forth to Provide a Testimonial Covering the Peer Review Process and the editorial office for the Professional and Impartial Evaluation of the Manuscript.

img

Luiz Sellmann