Prior to logging restrictions imposed by the Chinese Government the industry made up 80 percent of the regions revenue. Following a complete ban on commercial logging the indigenous people of the Yunnan region now see little opportunity for economic development. Ecotourism may provide solutions to the economic hardships suffered from the loss of industry to conservation in the Yunnan in the same way that it may serve to remedy the difficulties faced by the Maasai. As stated, the ecotourism structure must be improved to direct more money into host communities by reducing leakages for the industry to be successful in alleviating poverty in developing regions, but it provides a promising opportunity.Drumm and Moore (2002) discuss the price increase and economic leakage in their paper; saying that prices might augment since the visitors are more capable to pay higher rates for goods and services in opposition to the locals. Also, they have mentioned two solutions regarding the previous issue: (1) either a two pricing system represented as two separate price lists (the first for the locals and the second for the tourists with respect to the locals purchase power ability); (2) design unique goods and services subject only or the tourists’ consumption. Leakage appears when international investors import foreign products instead of using local resources; thus, the tourists will be using international products and in-turn contributing to the outside economy rather than the local one (Drumm & Moore, 2002). Direct environmental impacts
Ecotourism operations occasionally fail to live up to conservation ideals.
A pinealoma is a tumor of the pineal gland, a part of the brain that produces melatonin. If a pinealoma destroys the cells of the pineal gland in a child, it can cause precocious puberty. Signs and symptoms
The pineal gland produces the hormone melatonin which plays a role in regulating circadian rhythms. A pinealoma may disrupt production of this hormone, and insomnia may result.Frequently, paralysis of upward gaze along with several ocular findings such as convergence retraction nystagmus and eyelid retraction also known as Colliers sign and Light Near Dissociation  (pupil accommodates but doesnt react to light) are known collectively as Parinauds syndrome or Dorsal Mid-brain syndrome, are the only physical symptoms seen. This is caused by the compression of the vertical gaze center in the midbrain tectum at the level of the superior colliculus and cranial nerve III. Work-up usually includes Neuro-imaging as seen on the right.A pinealoma may cause interruption of hypothalamic inhibiting pathways, sometimes leading to beta-hCG secretion and consequent Leydigs cell stimulation (endocrine syndrome).Other symptoms may include hydrocephalus, gait disturbances, and precocious puberty. Cause
Pinealomas can be due to proliferation of primary pineocytes (pineocytomas, pineoblastomas), astrocytes (astrocytoma), or germ cells (germinoma). Germinomas are the most common tumor in the pineal gland. Diagnosis
Treatment
Prognosis
Of the different types of pinealomas, the type with the most favorable prognosis is the pineocytoma. References
External links
00322 at CHORUS